Commit graph

1745 commits

Author SHA1 Message Date
Nicholas Kazlauskas
8c9eb69002 drm/amd/display: Exit idle optimizations before HDCP execution
[ Upstream commit f30a3bea92bdab398531129d187629fb1d28f598 ]

[WHY]
PSP can access DCN registers during command submission and we need
to ensure that DCN is not in PG before doing so.

[HOW]
Add a callback to DM to lock and notify DC for idle optimization exit.
It can't be DC directly because of a potential race condition with the
link protection thread and the rest of DM operation.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:06 +01:00
Uri Arev
4ca2cf3a43 Bluetooth: ath3k: Fix multiple issues reported by checkpatch.pl
[ Upstream commit 68aa21054ec3a1a313af90a5f95ade16c3326d20 ]

This fixes some CHECKs reported by the checkpatch script.

Issues reported in ath3k.c:
-------
ath3k.c
-------
CHECK: Please don't use multiple blank lines
+
+

CHECK: Blank lines aren't necessary after an open brace '{'
+static const struct usb_device_id ath3k_blist_tbl[] = {
+

CHECK: Alignment should match open parenthesis
+static int ath3k_load_firmware(struct usb_device *udev,
+                               const struct firmware *firmware)

CHECK: Alignment should match open parenthesis
+               err = usb_bulk_msg(udev, pipe, send_buf, size,
+                                       &len, 3000);

CHECK: Unnecessary parentheses around 'len != size'
+               if (err || (len != size)) {

CHECK: Alignment should match open parenthesis
+static int ath3k_get_version(struct usb_device *udev,
+                       struct ath3k_version *version)

CHECK: Alignment should match open parenthesis
+static int ath3k_load_fwfile(struct usb_device *udev,
+               const struct firmware *firmware)

CHECK: Alignment should match open parenthesis
+               err = usb_bulk_msg(udev, pipe, send_buf, size,
+                                       &len, 3000);

CHECK: Unnecessary parentheses around 'len != size'
+               if (err || (len != size)) {

CHECK: Blank lines aren't necessary after an open brace '{'
+       switch (fw_version.ref_clock) {
+

CHECK: Alignment should match open parenthesis
+       snprintf(filename, ATH3K_NAME_LEN, "ar3k/ramps_0x%08x_%d%s",
+               le32_to_cpu(fw_version.rom_version), clk_value, ".dfu");

CHECK: Alignment should match open parenthesis
+static int ath3k_probe(struct usb_interface *intf,
+                       const struct usb_device_id *id)

CHECK: Alignment should match open parenthesis
+                       BT_ERR("Firmware file \"%s\" not found",
+                                                       ATH3K_FIRMWARE);

CHECK: Alignment should match open parenthesis
+               BT_ERR("Firmware file \"%s\" request failed (err=%d)",
+                                               ATH3K_FIRMWARE, ret);

total: 0 errors, 0 warnings, 14 checks, 540 lines checked

Signed-off-by: Uri Arev <me@wantyapps.xyz>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:06 +01:00
Takashi Iwai
6356966ccc ACPI: video: Add backlight=native quirk for Lenovo Slim 7 16ARH7
[ Upstream commit c901f63dc142c48326931f164f787dfff69273d9 ]

Lenovo Slim 7 16ARH7 is a machine with switchable graphics between AMD
and Nvidia, and the backlight can't be adjusted properly unless
acpi_backlight=native is passed.  Although nvidia-wmi-backlight is
present and loaded, this doesn't work as expected at all.

For making it working as default, add the corresponding quirk entry
with a DMI matching "LENOVO" "82UX".

Link: https://bugzilla.suse.com/show_bug.cgi?id=1217750
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:06 +01:00
Sean O'Brien
988efc0149 HID: Add quirk for Logitech Casa touchpad
[ Upstream commit dd2c345a94cfa3873cc20db87387ee509c345c1b ]

This device sometimes doesn't send touch release signals when moving
from >=4 fingers to <4 fingers. Using MT_QUIRK_NOT_SEEN_MEANS_UP instead
of MT_QUIRK_ALWAYS_VALID makes sure that no touches become stuck.

MT_QUIRK_FORCE_MULTI_INPUT is not necessary for this device, but does no
harm.

Signed-off-by: Sean O'Brien <seobrien@chromium.org>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:06 +01:00
Manish Rangankar
18f7d625de scsi: qedi: Fix crash while reading debugfs attribute
[ Upstream commit 28027ec8e32ecbadcd67623edb290dad61e735b5 ]

The qedi_dbg_do_not_recover_cmd_read() function invokes sprintf() directly
on a __user pointer, which results into the crash.

To fix this issue, use a small local stack buffer for sprintf() and then
call simple_read_from_buffer(), which in turns make the copy_to_user()
call.

BUG: unable to handle page fault for address: 00007f4801111000
PGD 8000000864df6067 P4D 8000000864df6067 PUD 864df7067 PMD 846028067 PTE 0
Oops: 0002 [#1] PREEMPT SMP PTI
Hardware name: HPE ProLiant DL380 Gen10/ProLiant DL380 Gen10, BIOS U30 06/15/2023
RIP: 0010:memcpy_orig+0xcd/0x130
RSP: 0018:ffffb7a18c3ffc40 EFLAGS: 00010202
RAX: 00007f4801111000 RBX: 00007f4801111000 RCX: 000000000000000f
RDX: 000000000000000f RSI: ffffffffc0bfd7a0 RDI: 00007f4801111000
RBP: ffffffffc0bfd7a0 R08: 725f746f6e5f6f64 R09: 3d7265766f636572
R10: ffffb7a18c3ffd08 R11: 0000000000000000 R12: 00007f4881110fff
R13: 000000007fffffff R14: ffffb7a18c3ffca0 R15: ffffffffc0bfd7af
FS:  00007f480118a740(0000) GS:ffff98e38af00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4801111000 CR3: 0000000864b8e001 CR4: 00000000007706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
 <TASK>
 ? __die_body+0x1a/0x60
 ? page_fault_oops+0x183/0x510
 ? exc_page_fault+0x69/0x150
 ? asm_exc_page_fault+0x22/0x30
 ? memcpy_orig+0xcd/0x130
 vsnprintf+0x102/0x4c0
 sprintf+0x51/0x80
 qedi_dbg_do_not_recover_cmd_read+0x2f/0x50 [qedi 6bcfdeeecdea037da47069eca2ba717c84a77324]
 full_proxy_read+0x50/0x80
 vfs_read+0xa5/0x2e0
 ? folio_add_new_anon_rmap+0x44/0xa0
 ? set_pte_at+0x15/0x30
 ? do_pte_missing+0x426/0x7f0
 ksys_read+0xa5/0xe0
 do_syscall_64+0x58/0x80
 ? __count_memcg_events+0x46/0x90
 ? count_memcg_event_mm+0x3d/0x60
 ? handle_mm_fault+0x196/0x2f0
 ? do_user_addr_fault+0x267/0x890
 ? exc_page_fault+0x69/0x150
 entry_SYSCALL_64_after_hwframe+0x72/0xdc
RIP: 0033:0x7f4800f20b4d

Tested-by: Martin Hoyer <mhoyer@redhat.com>
Reviewed-by: John Meneghini <jmeneghi@redhat.com>
Signed-off-by: Manish Rangankar <mrangankar@marvell.com>
Link: https://lore.kernel.org/r/20240415072155.30840-1-mrangankar@marvell.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:06 +01:00
Arnd Bergmann
bf7565882a wifi: ath9k: work around memset overflow warning
[ Upstream commit 61752ac69b69ed2e04444d090f6917c77ab36d42 ]

gcc-9 and some other older versions produce a false-positive warning
for zeroing two fields

In file included from include/linux/string.h:369,
                 from drivers/net/wireless/ath/ath9k/main.c:18:
In function 'fortify_memset_chk',
    inlined from 'ath9k_ps_wakeup' at drivers/net/wireless/ath/ath9k/main.c:140:3:
include/linux/fortify-string.h:462:25: error: call to '__write_overflow_field' declared with attribute warning: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Werror=attribute-warning]
  462 |                         __write_overflow_field(p_size_field, size);
      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Using a struct_group seems to reliably avoid the warning and
not make the code much uglier. The combined memset() should even
save a couple of cpu cycles.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://msgid.link/20240328135509.3755090-3-arnd@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:06 +01:00
Jean Delvare
d67fc9046c i2c: designware: Fix the functionality flags of the slave-only interface
[ Upstream commit cbf3fb5b29e99e3689d63a88c3cddbffa1b8de99 ]

When an I2C adapter acts only as a slave, it should not claim to
support I2C master capabilities.

Fixes: 5b6d721b266a ("i2c: designware: enable SLAVE in platform module")
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Luis Oliveira <lolivei@synopsys.com>
Cc: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Jan Dabros <jsd@semihalf.com>
Cc: Andi Shyti <andi.shyti@kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:05 +01:00
Jean Delvare
ad01404d95 i2c: at91: Fix the functionality flags of the slave-only interface
[ Upstream commit d6d5645e5fc1233a7ba950de4a72981c394a2557 ]

When an I2C adapter acts only as a slave, it should not claim to
support I2C master capabilities.

Fixes: 9d3ca54b550c ("i2c: at91: added slave mode support")
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Juergen Fitschen <me@jue.yt>
Cc: Ludovic Desroches <ludovic.desroches@microchip.com>
Cc: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Cc: Andi Shyti <andi.shyti@kernel.org>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:05 +01:00
Shichao Lai
ae443cdb53 usb-storage: alauda: Check whether the media is initialized
[ Upstream commit 16637fea001ab3c8df528a8995b3211906165a30 ]

The member "uzonesize" of struct alauda_info will remain 0
if alauda_init_media() fails, potentially causing divide errors
in alauda_read_data() and alauda_write_lba().
- Add a member "media_initialized" to struct alauda_info.
- Change a condition in alauda_check_media() to ensure the
  first initialization.
- Add an error check for the return value of alauda_init_media().

Fixes: e80b0fade09e ("[PATCH] USB Storage: add alauda support")
Reported-by: xingwei lee <xrivendell7@gmail.com>
Reported-by: yue sun <samsun1006219@gmail.com>
Reviewed-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Shichao Lai <shichaorai@gmail.com>
Link: https://lore.kernel.org/r/20240526012745.2852061-1-shichaorai@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:05 +01:00
Sicong Huang
c910213039 greybus: Fix use-after-free bug in gb_interface_release due to race condition.
commit 5c9c5d7f26acc2c669c1dcf57d1bb43ee99220ce upstream.

In gb_interface_create, &intf->mode_switch_completion is bound with
gb_interface_mode_switch_work. Then it will be started by
gb_interface_request_mode_switch. Here is the relevant code.
if (!queue_work(system_long_wq, &intf->mode_switch_work)) {
	...
}

If we call gb_interface_release to make cleanup, there may be an
unfinished work. This function will call kfree to free the object
"intf". However, if gb_interface_mode_switch_work is scheduled to
run after kfree, it may cause use-after-free error as
gb_interface_mode_switch_work will use the object "intf".
The possible execution flow that may lead to the issue is as follows:

CPU0                            CPU1

                            |   gb_interface_create
                            |   gb_interface_request_mode_switch
gb_interface_release        |
kfree(intf) (free)          |
                            |   gb_interface_mode_switch_work
                            |   mutex_lock(&intf->mutex) (use)

Fix it by canceling the work before kfree.

Signed-off-by: Sicong Huang <congei42@163.com>
Link: https://lore.kernel.org/r/20240416080313.92306-1-congei42@163.com
Cc: Ronnie Sahlberg <rsahlberg@ciq.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:05 +01:00
Beleswar Padhi
491f3d1dd8 remoteproc: k3-r5: Jump to error handling labels in start/stop errors
commit 1dc7242f6ee0c99852cb90676d7fe201cf5de422 upstream.

In case of errors during core start operation from sysfs, the driver
directly returns with the -EPERM error code. Fix this to ensure that
mailbox channels are freed on error before returning by jumping to the
'put_mbox' error handling label. Similarly, jump to the 'out' error
handling label to return with required -EPERM error code during the
core stop operation from sysfs.

Fixes: 3c8a9066d584 ("remoteproc: k3-r5: Do not allow core1 to power up before core0 via sysfs")
Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
Link: https://lore.kernel.org/r/20240506141849.1735679-1-b-padhi@ti.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:05 +01:00
Doug Brown
8c9519c7da serial: 8250_pxa: Configure tx_loadsz to match FIFO IRQ level
commit 5208e7ced520a813b4f4774451fbac4e517e78b2 upstream.

The FIFO is 64 bytes, but the FCR is configured to fire the TX interrupt
when the FIFO is half empty (bit 3 = 0). Thus, we should only write 32
bytes when a TX interrupt occurs.

This fixes a problem observed on the PXA168 that dropped a bunch of TX
bytes during large transmissions.

Fixes: ab28f51c77cd ("serial: rewrite pxa2xx-uart to use 8250_core")
Signed-off-by: Doug Brown <doug@schmorgal.com>
Link: https://lore.kernel.org/r/20240519191929.122202-1-doug@schmorgal.com
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:05 +01:00
Alexander Shishkin
a891241483 intel_th: pci: Add Lunar Lake support
commit f866b65322bfbc8fcca13c25f49e1a5c5a93ae4d upstream.

Add support for the Trace Hub in Lunar Lake.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20240429130119.1518073-16-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:05 +01:00
Alexander Shishkin
ff7dc324ba intel_th: pci: Add Meteor Lake-S support
commit c4a30def564d75e84718b059d1a62cc79b137cf9 upstream.

Add support for the Trace Hub in Meteor Lake-S.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20240429130119.1518073-14-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:05 +01:00
Alexander Shishkin
27e00ed79b intel_th: pci: Add Sapphire Rapids SOC support
commit 2e1da7efabe05cb0cf0b358883b2bc89080ed0eb upstream.

Add support for the Trace Hub in Sapphire Rapids SOC.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20240429130119.1518073-13-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:05 +01:00
Alexander Shishkin
311d38af7e intel_th: pci: Add Granite Rapids SOC support
commit 854afe461b009801a171b3a49c5f75ea43e4c04c upstream.

Add support for the Trace Hub in Granite Rapids SOC.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20240429130119.1518073-12-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:04 +01:00
Alexander Shishkin
6593e97191 intel_th: pci: Add Granite Rapids support
commit e44937889bdf4ecd1f0c25762b7226406b9b7a69 upstream.

Add support for the Trace Hub in Granite Rapids.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20240429130119.1518073-11-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:04 +01:00
Beleswar Padhi
3e8bdfe34b remoteproc: k3-r5: Do not allow core1 to power up before core0 via sysfs
commit 3c8a9066d584f5010b6f4ba03bf6b19d28973d52 upstream.

PSC controller has a limitation that it can only power-up the second
core when the first core is in ON state. Power-state for core0 should be
equal to or higher than core1.

Therefore, prevent core1 from powering up before core0 during the start
process from sysfs. Similarly, prevent core0 from shutting down before
core1 has been shut down from sysfs.

Fixes: 6dedbd1d5443 ("remoteproc: k3-r5: Add a remoteproc driver for R5F subsystem")
Signed-off-by: Beleswar Padhi <b-padhi@ti.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240430105307.1190615-3-b-padhi@ti.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:04 +01:00
Nuno Sa
4774f8a2da dmaengine: axi-dmac: fix possible race in remove()
commit 1bc31444209c8efae98cb78818131950d9a6f4d6 upstream.

We need to first free the IRQ before calling of_dma_controller_free().
Otherwise we could get an interrupt and schedule a tasklet while
removing the DMA controller.

Fixes: 0e3b67b348b8 ("dmaengine: Add support for the Analog Devices AXI-DMAC DMA controller")
Cc: stable@kernel.org
Signed-off-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20240328-axi-dmac-devm-probe-v3-1-523c0176df70@analog.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:04 +01:00
Rick Wertenbroek
163c8dd6f6 PCI: rockchip-ep: Remove wrong mask on subsys_vendor_id
commit 2dba285caba53f309d6060fca911b43d63f41697 upstream.

Remove wrong mask on subsys_vendor_id. Both the Vendor ID and Subsystem
Vendor ID are u16 variables and are written to a u32 register of the
controller. The Subsystem Vendor ID was always 0 because the u16 value
was masked incorrectly with GENMASK(31,16) resulting in all lower 16
bits being set to 0 prior to the shift.

Remove both masks as they are unnecessary and set the register correctly
i.e., the lower 16-bits are the Vendor ID and the upper 16-bits are the
Subsystem Vendor ID.

This is documented in the RK3399 TRM section 17.6.7.1.17

[kwilczynski: removed unnecesary newline]
Fixes: cf590b078391 ("PCI: rockchip: Add EP driver for Rockchip PCIe controller")
Link: https://lore.kernel.org/linux-pci/20240403144508.489835-1-rick.wertenbroek@gmail.com
Signed-off-by: Rick Wertenbroek <rick.wertenbroek@gmail.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:04 +01:00
Hagar Gamal Halim Hemdan
140bbed30a vmci: prevent speculation leaks by sanitizing event in event_deliver()
commit 8003f00d895310d409b2bf9ef907c56b42a4e0f4 upstream.

Coverity spotted that event_msg is controlled by user-space,
event_msg->event_data.event is passed to event_deliver() and used
as an index without sanitization.

This change ensures that the event index is sanitized to mitigate any
possibility of speculative information leaks.

This bug was discovered and resolved using Coverity Static Analysis
Security Testing (SAST) by Synopsys, Inc.

Only compile tested, no access to HW.

Fixes: 1d990201f9bb ("VMCI: event handling implementation.")
Cc: stable <stable@kernel.org>
Signed-off-by: Hagar Gamal Halim Hemdan <hagarhem@amazon.com>
Link: https://lore.kernel.org/stable/20231127193533.46174-1-hagarhem%40amazon.com
Link: https://lore.kernel.org/r/20240430085916.4753-1-hagarhem@amazon.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:04 +01:00
Marek Szyprowski
d8898f2a85 drm/exynos: hdmi: report safe 640x480 mode as a fallback when no EDID found
commit 799d4b392417ed6889030a5b2335ccb6dcf030ab upstream.

When reading EDID fails and driver reports no modes available, the DRM
core adds an artificial 1024x786 mode to the connector. Unfortunately
some variants of the Exynos HDMI (like the one in Exynos4 SoCs) are not
able to drive such mode, so report a safe 640x480 mode instead of nothing
in case of the EDID reading failure.

This fixes the following issue observed on Trats2 board since commit
13d5b040363c ("drm/exynos: do not return negative values from .get_modes()"):

[drm] Exynos DRM: using 11c00000.fimd device for DMA mapping operations
exynos-drm exynos-drm: bound 11c00000.fimd (ops fimd_component_ops)
exynos-drm exynos-drm: bound 12c10000.mixer (ops mixer_component_ops)
exynos-dsi 11c80000.dsi: [drm:samsung_dsim_host_attach] Attached s6e8aa0 device (lanes:4 bpp:24 mode-flags:0x10b)
exynos-drm exynos-drm: bound 11c80000.dsi (ops exynos_dsi_component_ops)
exynos-drm exynos-drm: bound 12d00000.hdmi (ops hdmi_component_ops)
[drm] Initialized exynos 1.1.0 20180330 for exynos-drm on minor 1
exynos-hdmi 12d00000.hdmi: [drm:hdmiphy_enable.part.0] *ERROR* PLL could not reach steady state
panel-samsung-s6e8aa0 11c80000.dsi.0: ID: 0xa2, 0x20, 0x8c
exynos-mixer 12c10000.mixer: timeout waiting for VSYNC
------------[ cut here ]------------
WARNING: CPU: 1 PID: 11 at drivers/gpu/drm/drm_atomic_helper.c:1682 drm_atomic_helper_wait_for_vblanks.part.0+0x2b0/0x2b8
[CRTC:70:crtc-1] vblank wait timed out
Modules linked in:
CPU: 1 PID: 11 Comm: kworker/u16:0 Not tainted 6.9.0-rc5-next-20240424 #14913
Hardware name: Samsung Exynos (Flattened Device Tree)
Workqueue: events_unbound deferred_probe_work_func
Call trace:
 unwind_backtrace from show_stack+0x10/0x14
 show_stack from dump_stack_lvl+0x68/0x88
 dump_stack_lvl from __warn+0x7c/0x1c4
 __warn from warn_slowpath_fmt+0x11c/0x1a8
 warn_slowpath_fmt from drm_atomic_helper_wait_for_vblanks.part.0+0x2b0/0x2b8
 drm_atomic_helper_wait_for_vblanks.part.0 from drm_atomic_helper_commit_tail_rpm+0x7c/0x8c
 drm_atomic_helper_commit_tail_rpm from commit_tail+0x9c/0x184
 commit_tail from drm_atomic_helper_commit+0x168/0x190
 drm_atomic_helper_commit from drm_atomic_commit+0xb4/0xe0
 drm_atomic_commit from drm_client_modeset_commit_atomic+0x23c/0x27c
 drm_client_modeset_commit_atomic from drm_client_modeset_commit_locked+0x60/0x1cc
 drm_client_modeset_commit_locked from drm_client_modeset_commit+0x24/0x40
 drm_client_modeset_commit from __drm_fb_helper_restore_fbdev_mode_unlocked+0x9c/0xc4
 __drm_fb_helper_restore_fbdev_mode_unlocked from drm_fb_helper_set_par+0x2c/0x3c
 drm_fb_helper_set_par from fbcon_init+0x3d8/0x550
 fbcon_init from visual_init+0xc0/0x108
 visual_init from do_bind_con_driver+0x1b8/0x3a4
 do_bind_con_driver from do_take_over_console+0x140/0x1ec
 do_take_over_console from do_fbcon_takeover+0x70/0xd0
 do_fbcon_takeover from fbcon_fb_registered+0x19c/0x1ac
 fbcon_fb_registered from register_framebuffer+0x190/0x21c
 register_framebuffer from __drm_fb_helper_initial_config_and_unlock+0x350/0x574
 __drm_fb_helper_initial_config_and_unlock from exynos_drm_fbdev_client_hotplug+0x6c/0xb0
 exynos_drm_fbdev_client_hotplug from drm_client_register+0x58/0x94
 drm_client_register from exynos_drm_bind+0x160/0x190
 exynos_drm_bind from try_to_bring_up_aggregate_device+0x200/0x2d8
 try_to_bring_up_aggregate_device from __component_add+0xb0/0x170
 __component_add from mixer_probe+0x74/0xcc
 mixer_probe from platform_probe+0x5c/0xb8
 platform_probe from really_probe+0xe0/0x3d8
 really_probe from __driver_probe_device+0x9c/0x1e4
 __driver_probe_device from driver_probe_device+0x30/0xc0
 driver_probe_device from __device_attach_driver+0xa8/0x120
 __device_attach_driver from bus_for_each_drv+0x80/0xcc
 bus_for_each_drv from __device_attach+0xac/0x1fc
 __device_attach from bus_probe_device+0x8c/0x90
 bus_probe_device from deferred_probe_work_func+0x98/0xe0
 deferred_probe_work_func from process_one_work+0x240/0x6d0
 process_one_work from worker_thread+0x1a0/0x3f4
 worker_thread from kthread+0x104/0x138
 kthread from ret_from_fork+0x14/0x28
Exception stack(0xf0895fb0 to 0xf0895ff8)
...
irq event stamp: 82357
hardirqs last  enabled at (82363): [<c01a96e8>] vprintk_emit+0x308/0x33c
hardirqs last disabled at (82368): [<c01a969c>] vprintk_emit+0x2bc/0x33c
softirqs last  enabled at (81614): [<c0101644>] __do_softirq+0x320/0x500
softirqs last disabled at (81609): [<c012dfe0>] __irq_exit_rcu+0x130/0x184
---[ end trace 0000000000000000 ]---
exynos-drm exynos-drm: [drm] *ERROR* flip_done timed out
exynos-drm exynos-drm: [drm] *ERROR* [CRTC:70:crtc-1] commit wait timed out
exynos-drm exynos-drm: [drm] *ERROR* flip_done timed out
exynos-drm exynos-drm: [drm] *ERROR* [CONNECTOR:74:HDMI-A-1] commit wait timed out
exynos-drm exynos-drm: [drm] *ERROR* flip_done timed out
exynos-drm exynos-drm: [drm] *ERROR* [PLANE:56:plane-5] commit wait timed out
exynos-mixer 12c10000.mixer: timeout waiting for VSYNC

Cc: stable@vger.kernel.org
Fixes: 13d5b040363c ("drm/exynos: do not return negative values from .get_modes()")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:04 +01:00
Jani Nikula
8659ffe68c drm/exynos/vidi: fix memory leak in .get_modes()
commit 38e3825631b1f314b21e3ade00b5a4d737eb054e upstream.

The duplicated EDID is never freed. Fix it.

Cc: stable@vger.kernel.org
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:04 +01:00
Dirk Behme
32ba65d9a4 drivers: core: synchronize really_probe() and dev_uevent()
commit c0a40097f0bc81deafc15f9195d1fb54595cd6d0 upstream.

Synchronize the dev->driver usage in really_probe() and dev_uevent().
These can run in different threads, what can result in the following
race condition for dev->driver uninitialization:

Thread #1:
==========

really_probe() {
...
probe_failed:
...
device_unbind_cleanup(dev) {
    ...
    dev->driver = NULL;   // <= Failed probe sets dev->driver to NULL
    ...
    }
...
}

Thread #2:
==========

dev_uevent() {
...
if (dev->driver)
      // If dev->driver is NULLed from really_probe() from here on,
      // after above check, the system crashes
      add_uevent_var(env, "DRIVER=%s", dev->driver->name);
...
}

really_probe() holds the lock, already. So nothing needs to be done
there. dev_uevent() is called with lock held, often, too. But not
always. What implies that we can't add any locking in dev_uevent()
itself. So fix this race by adding the lock to the non-protected
path. This is the path where above race is observed:

 dev_uevent+0x235/0x380
 uevent_show+0x10c/0x1f0  <= Add lock here
 dev_attr_show+0x3a/0xa0
 sysfs_kf_seq_show+0x17c/0x250
 kernfs_seq_show+0x7c/0x90
 seq_read_iter+0x2d7/0x940
 kernfs_fop_read_iter+0xc6/0x310
 vfs_read+0x5bc/0x6b0
 ksys_read+0xeb/0x1b0
 __x64_sys_read+0x42/0x50
 x64_sys_call+0x27ad/0x2d30
 do_syscall_64+0xcd/0x1d0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Similar cases are reported by syzkaller in

https://syzkaller.appspot.com/bug?extid=ffa8143439596313a85a

But these are regarding the *initialization* of dev->driver

dev->driver = drv;

As this switches dev->driver to non-NULL these reports can be considered
to be false-positives (which should be "fixed" by this commit, as well,
though).

The same issue was reported and tried to be fixed back in 2015 in

https://lore.kernel.org/lkml/1421259054-2574-1-git-send-email-a.sangwan@samsung.com/

already.

Fixes: 239378f16aa1 ("Driver core: add uevent vars for devices of a class")
Cc: stable <stable@kernel.org>
Cc: syzbot+ffa8143439596313a85a@syzkaller.appspotmail.com
Cc: Ashish Sangwan <a.sangwan@samsung.com>
Cc: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Link: https://lore.kernel.org/r/20240513050634.3964461-1-dirk.behme@de.bosch.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:04 +01:00
Jean-Baptiste Maneyrol
99b833ffb1 iio: imu: inv_icm42600: delete unneeded update watermark call
commit 245f3b149e6cc3ac6ee612cdb7042263bfc9e73c upstream.

Update watermark will be done inside the hwfifo_set_watermark callback
just after the update_scan_mode. It is useless to do it here.

Fixes: 7f85e42a6c54 ("iio: imu: inv_icm42600: add buffer support in iio devices")
Cc: stable@vger.kernel.org
Signed-off-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com>
Link: https://lore.kernel.org/r/20240527210008.612932-1-inv.git-commit@tdk.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:04 +01:00
Marc Ferland
8b0f25c62d iio: dac: ad5592r: fix temperature channel scaling value
commit 279428df888319bf68f2686934897301a250bb84 upstream.

The scale value for the temperature channel is (assuming Vref=2.5 and
the datasheet):

    376.7897513

When calculating both val and val2 for the temperature scale we
use (3767897513/25) and multiply it by Vref (here I assume 2500mV) to
obtain:

  2500 * (3767897513/25) ==> 376789751300

Finally we divide with remainder by 10^9 to get:

    val = 376
    val2 = 789751300

However, we return IIO_VAL_INT_PLUS_MICRO (should have been NANO) as
the scale type. So when converting the raw temperature value to the
'processed' temperature value we will get (assuming raw=810,
offset=-753):

    processed = (raw + offset) * scale_val
              = (810 + -753) * 376
	      = 21432

    processed += div((raw + offset) * scale_val2, 10^6)
              += div((810 + -753) * 789751300, 10^6)
	      += 45015
    ==> 66447
    ==> 66.4 Celcius

instead of the expected 21.5 Celsius.

Fix this issue by changing IIO_VAL_INT_PLUS_MICRO to
IIO_VAL_INT_PLUS_NANO.

Fixes: 56ca9db862bf ("iio: dac: Add support for the AD5592R/AD5593R ADCs/DACs")
Signed-off-by: Marc Ferland <marc.ferland@sonatest.com>
Link: https://lore.kernel.org/r/20240501150554.1871390-1-marc.ferland@sonatest.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:04 +01:00
David Lechner
0cd6a6feb7 iio: adc: ad9467: fix scan type sign
commit 8a01ef749b0a632f0e1f4ead0f08b3310d99fcb1 upstream.

According to the IIO documentation, the sign in the scan type should be
lower case. The ad9467 driver was incorrectly using upper case.

Fix by changing to lower case.

Fixes: 4606d0f4b05f ("iio: adc: ad9467: add support for AD9434 high-speed ADC")
Fixes: ad6797120238 ("iio: adc: ad9467: add support AD9467 ADC")
Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://lore.kernel.org/r/20240503-ad9467-fix-scan-type-sign-v1-1-c7a1a066ebb9@baylibre.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:04 +01:00
Taehee Yoo
64e6146333 ionic: fix use after netif_napi_del()
[ Upstream commit 79f18a41dd056115d685f3b0a419c7cd40055e13 ]

When queues are started, netif_napi_add() and napi_enable() are called.
If there are 4 queues and only 3 queues are used for the current
configuration, only 3 queues' napi should be registered and enabled.
The ionic_qcq_enable() checks whether the .poll pointer is not NULL for
enabling only the using queue' napi. Unused queues' napi will not be
registered by netif_napi_add(), so the .poll pointer indicates NULL.
But it couldn't distinguish whether the napi was unregistered or not
because netif_napi_del() doesn't reset the .poll pointer to NULL.
So, ionic_qcq_enable() calls napi_enable() for the queue, which was
unregistered by netif_napi_del().

Reproducer:
   ethtool -L <interface name> rx 1 tx 1 combined 0
   ethtool -L <interface name> rx 0 tx 0 combined 1
   ethtool -L <interface name> rx 0 tx 0 combined 4

Splat looks like:
kernel BUG at net/core/dev.c:6666!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
CPU: 3 PID: 1057 Comm: kworker/3:3 Not tainted 6.10.0-rc2+ #16
Workqueue: events ionic_lif_deferred_work [ionic]
RIP: 0010:napi_enable+0x3b/0x40
Code: 48 89 c2 48 83 e2 f6 80 b9 61 09 00 00 00 74 0d 48 83 bf 60 01 00 00 00 74 03 80 ce 01 f0 4f
RSP: 0018:ffffb6ed83227d48 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff97560cda0828 RCX: 0000000000000029
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff97560cda0a28
RBP: ffffb6ed83227d50 R08: 0000000000000400 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000
R13: ffff97560ce3c1a0 R14: 0000000000000000 R15: ffff975613ba0a20
FS:  0000000000000000(0000) GS:ffff975d5f780000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8f734ee200 CR3: 0000000103e50000 CR4: 00000000007506f0
PKRU: 55555554
Call Trace:
 <TASK>
 ? die+0x33/0x90
 ? do_trap+0xd9/0x100
 ? napi_enable+0x3b/0x40
 ? do_error_trap+0x83/0xb0
 ? napi_enable+0x3b/0x40
 ? napi_enable+0x3b/0x40
 ? exc_invalid_op+0x4e/0x70
 ? napi_enable+0x3b/0x40
 ? asm_exc_invalid_op+0x16/0x20
 ? napi_enable+0x3b/0x40
 ionic_qcq_enable+0xb7/0x180 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8]
 ionic_start_queues+0xc4/0x290 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8]
 ionic_link_status_check+0x11c/0x170 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8]
 ionic_lif_deferred_work+0x129/0x280 [ionic 59bdfc8a035436e1c4224ff7d10789e3f14643f8]
 process_one_work+0x145/0x360
 worker_thread+0x2bb/0x3d0
 ? __pfx_worker_thread+0x10/0x10
 kthread+0xcc/0x100
 ? __pfx_kthread+0x10/0x10
 ret_from_fork+0x2d/0x50
 ? __pfx_kthread+0x10/0x10
 ret_from_fork_asm+0x1a/0x30

Fixes: 0f3154e6bcb3 ("ionic: Add Tx and Rx handling")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Reviewed-by: Brett Creeley <brett.creeley@amd.com>
Reviewed-by: Shannon Nelson <shannon.nelson@amd.com>
Link: https://lore.kernel.org/r/20240612060446.1754392-1-ap420073@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:04 +01:00
Xiaolei Wang
e1b86c6491 net: stmmac: replace priv->speed with the portTransmitRate from the tc-cbs parameters
[ Upstream commit be27b896529787e23a35ae4befb6337ce73fcca0 ]

The current cbs parameter depends on speed after uplinking,
which is not needed and will report a configuration error
if the port is not initially connected. The UAPI exposed by
tc-cbs requires userspace to recalculate the send slope anyway,
because the formula depends on port_transmit_rate (see man tc-cbs),
which is not an invariant from tc's perspective. Therefore, we
use offload->sendslope and offload->idleslope to derive the
original port_transmit_rate from the CBS formula.

Fixes: 1f705bc61aee ("net: stmmac: Add support for CBS QDISC")
Signed-off-by: Xiaolei Wang <xiaolei.wang@windriver.com>
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20240608143524.2065736-1-xiaolei.wang@windriver.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:03 +01:00
Gal Pressman
9accf66f60 net/mlx5e: Fix features validation check for tunneled UDP (non-VXLAN) packets
[ Upstream commit 791b4089e326271424b78f2fae778b20e53d071b ]

Move the vxlan_features_check() call to after we verified the packet is
a tunneled VXLAN packet.

Without this, tunneled UDP non-VXLAN packets (for ex. GENENVE) might
wrongly not get offloaded.
In some cases, it worked by chance as GENEVE header is the same size as
VXLAN, but it is obviously incorrect.

Fixes: e3cfc7e6b7bd ("net/mlx5e: TX, Add geneve tunnel stateless offload support")
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:03 +01:00
Adam Miotk
be2479298b drm/bridge/panel: Fix runtime warning on panel bridge release
[ Upstream commit ce62600c4dbee8d43b02277669dd91785a9b81d9 ]

Device managed panel bridge wrappers are created by calling to
drm_panel_bridge_add_typed() and registering a release handler for
clean-up when the device gets unbound.

Since the memory for this bridge is also managed and linked to the panel
device, the release function should not try to free that memory.
Moreover, the call to devm_kfree() inside drm_panel_bridge_remove() will
fail in this case and emit a warning because the panel bridge resource
is no longer on the device resources list (it has been removed from
there before the call to release handlers).

Fixes: 67022227ffb1 ("drm/bridge: Add a devm_ allocator for panel bridge.")
Signed-off-by: Adam Miotk <adam.miotk@arm.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240610102739.139852-1-adam.miotk@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:03 +01:00
Amjad Ouled-Ameur
f77863ef05 drm/komeda: check for error-valued pointer
[ Upstream commit b880018edd3a577e50366338194dee9b899947e0 ]

komeda_pipeline_get_state() may return an error-valued pointer, thus
check the pointer for negative or null value before dereferencing.

Fixes: 502932a03fce ("drm/komeda: Add the initial scaler support for CORE")
Signed-off-by: Amjad Ouled-Ameur <amjad.ouled-ameur@arm.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240610102056.40406-1-amjad.ouled-ameur@arm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:03 +01:00
Aleksandr Mishin
a04fd7acfb liquidio: Adjust a NULL pointer handling path in lio_vf_rep_copy_packet
[ Upstream commit c44711b78608c98a3e6b49ce91678cd0917d5349 ]

In lio_vf_rep_copy_packet() pg_info->page is compared to a NULL value,
but then it is unconditionally passed to skb_add_rx_frag() which looks
strange and could lead to null pointer dereference.

lio_vf_rep_copy_packet() call trace looks like:
	octeon_droq_process_packets
	 octeon_droq_fast_process_packets
	  octeon_droq_dispatch_pkt
	   octeon_create_recv_info
	    ...search in the dispatch_list...
	     ->disp_fn(rdisp->rinfo, ...)
	      lio_vf_rep_pkt_recv(struct octeon_recv_info *recv_info, ...)
In this path there is no code which sets pg_info->page to NULL.
So this check looks unneeded and doesn't solve potential problem.
But I guess the author had reason to add a check and I have no such card
and can't do real test.
In addition, the code in the function liquidio_push_packet() in
liquidio/lio_core.c does exactly the same.

Based on this, I consider the most acceptable compromise solution to
adjust this issue by moving skb_add_rx_frag() into conditional scope.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 1f233f327913 ("liquidio: switchdev support for LiquidIO NIC")
Signed-off-by: Aleksandr Mishin <amishin@t-argos.ru>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:03 +01:00
Jie Wang
c38e667ee8 net: hns3: add cond_resched() to hns3 ring buffer init process
[ Upstream commit 968fde83841a8c23558dfbd0a0c69d636db52b55 ]

Currently hns3 ring buffer init process would hold cpu too long with big
Tx/Rx ring depth. This could cause soft lockup.

So this patch adds cond_resched() to the process. Then cpu can break to
run other tasks instead of busy looping.

Fixes: a723fb8efe29 ("net: hns3: refine for set ring parameters")
Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:03 +01:00
Csókás, Bence
082b6ec7d7 net: sfp: Always call sfp_sm_mod_remove() on remove
[ Upstream commit e96b2933152fd87b6a41765b2f58b158fde855b6 ]

If the module is in SFP_MOD_ERROR, `sfp_sm_mod_remove()` will
not be run. As a consequence, `sfp_hwmon_remove()` is not getting
run either, leaving a stale `hwmon` device behind. `sfp_sm_mod_remove()`
itself checks `sfp->sm_mod_state` anyways, so this check was not
really needed in the first place.

Fixes: d2e816c0293f ("net: sfp: handle module remove outside state machine")
Signed-off-by: "Csókás, Bence" <csokas.bence@prolan.hu>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20240605084251.63502-1-csokas.bence@prolan.hu
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:03 +01:00
Ian Forbes
6d19c39e5e drm/vmwgfx: 3D disabled should not effect STDU memory limits
[ Upstream commit fb5e19d2dd03eb995ccd468d599b2337f7f66555 ]

This limit became a hard cap starting with the change referenced below.
Surface creation on the device will fail if the requested size is larger
than this limit so altering the value arbitrarily will expose modes that
are too large for the device's hard limits.

Fixes: 7ebb47c9f9ab ("drm/vmwgfx: Read new register for GB memory when available")

Signed-off-by: Ian Forbes <ian.forbes@broadcom.com>
Signed-off-by: Zack Rusin <zack.rusin@broadcom.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240521184720.767-3-ian.forbes@broadcom.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:03 +01:00
José Expósito
4f4d278e5f HID: logitech-dj: Fix memory leak in logi_dj_recv_switch_to_dj_mode()
[ Upstream commit ce3af2ee95170b7d9e15fff6e500d67deab1e7b3 ]

Fix a memory leak on logi_dj_recv_send_report() error path.

Fixes: 6f20d3261265 ("HID: logitech-dj: Fix error handling in logi_dj_recv_switch_to_dj_mode()")
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:03 +01:00
Kun(llfl)
fbe242c90d iommu/amd: Fix sysfs leak in iommu init
[ Upstream commit a295ec52c8624883885396fde7b4df1a179627c3 ]

During the iommu initialization, iommu_init_pci() adds sysfs nodes.
However, these nodes aren't remove in free_iommu_resources() subsequently.

Fixes: 39ab9555c241 ("iommu: Add sysfs bindings for struct iommu_device")
Signed-off-by: Kun(llfl) <llfl@linux.alibaba.com>
Reviewed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Link: https://lore.kernel.org/r/c8e0d11c6ab1ee48299c288009cf9c5dae07b42d.1715215003.git.llfl@linux.alibaba.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:03 +01:00
Vasant Hegde
6db92ff66e iommu/amd: Introduce pci segment structure
[ Upstream commit 404ec4e4c169fb64da6b2a38b471c13ac0897c76 ]

Newer AMD systems can support multiple PCI segments, where each segment
contains one or more IOMMU instances. However, an IOMMU instance can only
support a single PCI segment.

Current code assumes that system contains only one pci segment (segment 0)
and creates global data structures such as device table, rlookup table,
etc.

Introducing per PCI segment data structure, which contains segment
specific data structures. This will eventually replace the global
data structures.

Also update `amd_iommu->pci_seg` variable to point to PCI segment
structure instead of PCI segment ID.

Co-developed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/20220706113825.25582-3-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Stable-dep-of: a295ec52c862 ("iommu/amd: Fix sysfs leak in iommu init")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:03 +01:00
Matthias Schiffer
f042b2d8d1 gpio: tqmx86: store IRQ trigger type and unmask status separately
commit 08af509efdf8dad08e972b48de0e2c2a7919ea8b upstream.

irq_set_type() should not implicitly unmask the IRQ.

All accesses to the interrupt configuration register are moved to a new
helper tqmx86_gpio_irq_config(). We also introduce the new rule that
accessing irq_type must happen while locked, which will become
significant for fixing EDGE_BOTH handling.

Fixes: b868db94a6a7 ("gpio: tqmx86: Add GPIO from for this IO controller")
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Link: https://lore.kernel.org/r/6aa4f207f77cb58ef64ffb947e91949b0f753ccd.1717063994.git.matthias.schiffer@ew.tq-group.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:03 +01:00
Nikita Zhandarovich
8121ee9dfd HID: core: remove unnecessary WARN_ON() in implement()
[ Upstream commit 4aa2dcfbad538adf7becd0034a3754e1bd01b2b5 ]

Syzkaller hit a warning [1] in a call to implement() when trying
to write a value into a field of smaller size in an output report.

Since implement() already has a warn message printed out with the
help of hid_warn() and value in question gets trimmed with:
	...
	value &= m;
	...
WARN_ON may be considered superfluous. Remove it to suppress future
syzkaller triggers.

[1]
WARNING: CPU: 0 PID: 5084 at drivers/hid/hid-core.c:1451 implement drivers/hid/hid-core.c:1451 [inline]
WARNING: CPU: 0 PID: 5084 at drivers/hid/hid-core.c:1451 hid_output_report+0x548/0x760 drivers/hid/hid-core.c:1863
Modules linked in:
CPU: 0 PID: 5084 Comm: syz-executor424 Not tainted 6.9.0-rc7-syzkaller-00183-gcf87f46fd34d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:implement drivers/hid/hid-core.c:1451 [inline]
RIP: 0010:hid_output_report+0x548/0x760 drivers/hid/hid-core.c:1863
...
Call Trace:
 <TASK>
 __usbhid_submit_report drivers/hid/usbhid/hid-core.c:591 [inline]
 usbhid_submit_report+0x43d/0x9e0 drivers/hid/usbhid/hid-core.c:636
 hiddev_ioctl+0x138b/0x1f00 drivers/hid/usbhid/hiddev.c:726
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:904 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:890
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
...

Fixes: 95d1c8951e5b ("HID: simplify implement() a bit")
Reported-by: <syzbot+5186630949e3c55f0799@syzkaller.appspotmail.com>
Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Nikita Zhandarovich <n.zhandarovich@fintech.ru>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:03 +01:00
Gregor Herburger
c4b4adaa93 gpio: tqmx86: fix typo in Kconfig label
[ Upstream commit 8c219e52ca4d9a67cd6a7074e91bf29b55edc075 ]

Fix description for GPIO_TQMX86 from QTMX86 to TQMx86.

Fixes: b868db94a6a7 ("gpio: tqmx86: Add GPIO from for this IO controller")
Signed-off-by: Gregor Herburger <gregor.herburger@tq-group.com>
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/e0e38c9944ad6d281d9a662a45d289b88edc808e.1717063994.git.matthias.schiffer@ew.tq-group.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:02 +01:00
Dmitry Torokhov
589d11af68 Input: try trimming too long modalias strings
commit 0774d19038c496f0c3602fb505c43e1b2d8eed85 upstream.

If an input device declares too many capability bits then modalias
string for such device may become too long and not fit into uevent
buffer, resulting in failure of sending said uevent. This, in turn,
may prevent userspace from recognizing existence of such devices.

This is typically not a concern for real hardware devices as they have
limited number of keys, but happen with synthetic devices such as
ones created by xen-kbdfront driver, which creates devices as being
capable of delivering all possible keys, since it doesn't know what
keys the backend may produce.

To deal with such devices input core will attempt to trim key data,
in the hope that the rest of modalias string will fit in the given
buffer. When trimming key data it will indicate that it is not
complete by placing "+," sign, resulting in conversions like this:

old: k71,72,73,74,78,7A,7B,7C,7D,8E,9E,A4,AD,E0,E1,E4,F8,174,
new: k71,72,73,74,78,7A,7B,7C,+,

This should allow existing udev rules continue to work with existing
devices, and will also allow writing more complex rules that would
recognize trimmed modalias and check input device characteristics by
other means (for example by parsing KEY= data in uevent or parsing
input device sysfs attributes).

Note that the driver core may try adding more uevent environment
variables once input core is done adding its own, so when forming
modalias we can not use the entire available buffer, so we reduce
it by somewhat an arbitrary amount (96 bytes).

Reported-by: Jason Andryuk <jandryuk@gmail.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Jason Andryuk <jandryuk@gmail.com>
Link: https://lore.kernel.org/r/ZjAWMQCJdrxZkvkB@google.com
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Jason Andryuk <jason.andryuk@amd.com>
2024-11-19 14:19:02 +01:00
Breno Leitao
cb8b2b8edc scsi: mpt3sas: Avoid test/set_bit() operating in non-allocated memory
commit 4254dfeda82f20844299dca6c38cbffcfd499f41 upstream.

There is a potential out-of-bounds access when using test_bit() on a single
word. The test_bit() and set_bit() functions operate on long values, and
when testing or setting a single word, they can exceed the word
boundary. KASAN detects this issue and produces a dump:

	 BUG: KASAN: slab-out-of-bounds in _scsih_add_device.constprop.0 (./arch/x86/include/asm/bitops.h:60 ./include/asm-generic/bitops/instrumented-atomic.h:29 drivers/scsi/mpt3sas/mpt3sas_scsih.c:7331) mpt3sas

	 Write of size 8 at addr ffff8881d26e3c60 by task kworker/u1536:2/2965

For full log, please look at [1].

Make the allocation at least the size of sizeof(unsigned long) so that
set_bit() and test_bit() have sufficient room for read/write operations
without overwriting unallocated memory.

[1] Link: https://lore.kernel.org/all/ZkNcALr3W3KGYYJG@gmail.com/

Fixes: c696f7b83ede ("scsi: mpt3sas: Implement device_remove_in_progress check in IOCTL path")
Cc: stable@vger.kernel.org
Suggested-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Breno Leitao <leitao@debian.org>
Link: https://lore.kernel.org/r/20240605085530.499432-1-leitao@debian.org
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:02 +01:00
Kuangyi Chiang
34e31f2475 xhci: Apply broken streams quirk to Etron EJ188 xHCI host
commit 91f7a1524a92c70ffe264db8bdfa075f15bbbeb9 upstream.

As described in commit 8f873c1ff4ca ("xhci: Blacklist using streams on the
Etron EJ168 controller"), EJ188 have the same issue as EJ168, where Streams
do not work reliable on EJ188. So apply XHCI_BROKEN_STREAMS quirk to EJ188
as well.

Cc: stable@vger.kernel.org
Signed-off-by: Kuangyi Chiang <ki.chiang65@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20240611120610.3264502-4-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:02 +01:00
Kuangyi Chiang
ee8078df25 xhci: Apply reset resume quirk to Etron EJ188 xHCI host
commit 17bd54555c2aaecfdb38e2734149f684a73fa584 upstream.

As described in commit c877b3b2ad5c ("xhci: Add reset on resume quirk for
asrock p67 host"), EJ188 have the same issue as EJ168, where completely
dies on resume. So apply XHCI_RESET_ON_RESUME quirk to EJ188 as well.

Cc: stable@vger.kernel.org
Signed-off-by: Kuangyi Chiang <ki.chiang65@gmail.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20240611120610.3264502-3-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:02 +01:00
Mathias Nyman
f04d08b229 xhci: Set correct transferred length for cancelled bulk transfers
commit f0260589b439e2637ad54a2b25f00a516ef28a57 upstream.

The transferred length is set incorrectly for cancelled bulk
transfer TDs in case the bulk transfer ring stops on the last transfer
block with a 'Stop - Length Invalid' completion code.

length essentially ends up being set to the requested length:
urb->actual_length = urb->transfer_buffer_length

Length for 'Stop - Length Invalid' cases should be the sum of all
TRB transfer block lengths up to the one the ring stopped on,
_excluding_ the one stopped on.

Fix this by always summing up TRB lengths for 'Stop - Length Invalid'
bulk cases.

This issue was discovered by Alan Stern while debugging
https://bugzilla.kernel.org/show_bug.cgi?id=218890, but does not
solve that bug. Issue is older than 4.10 kernel but fix won't apply
to those due to major reworks in that area.

Tested-by: Pierre Tomon <pierretom+12@ik.me>
Cc: stable@vger.kernel.org # v4.10+
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20240611120610.3264502-2-mathias.nyman@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:02 +01:00
Tomas Winkler
b1e9d6e3e0 mei: me: release irq in mei_me_pci_resume error path
commit 283cb234ef95d94c61f59e1cd070cd9499b51292 upstream.

The mei_me_pci_resume doesn't release irq on the error path,
in case mei_start() fails.

Cc: <stable@kernel.org>
Fixes: 33ec08263147 ("mei: revamp mei reset state machine")
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20240604090728.1027307-1-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:02 +01:00
Alan Stern
de7c10417e USB: class: cdc-wdm: Fix CPU lockup caused by excessive log messages
commit 22f00812862564b314784167a89f27b444f82a46 upstream.

The syzbot fuzzer found that the interrupt-URB completion callback in
the cdc-wdm driver was taking too long, and the driver's immediate
resubmission of interrupt URBs with -EPROTO status combined with the
dummy-hcd emulation to cause a CPU lockup:

cdc_wdm 1-1:1.0: nonzero urb status received: -71
cdc_wdm 1-1:1.0: wdm_int_callback - 0 bytes
watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor782:6625]
CPU#0 Utilization every 4s during lockup:
	#1:  98% system,	  0% softirq,	  3% hardirq,	  0% idle
	#2:  98% system,	  0% softirq,	  3% hardirq,	  0% idle
	#3:  98% system,	  0% softirq,	  3% hardirq,	  0% idle
	#4:  98% system,	  0% softirq,	  3% hardirq,	  0% idle
	#5:  98% system,	  1% softirq,	  3% hardirq,	  0% idle
Modules linked in:
irq event stamp: 73096
hardirqs last  enabled at (73095): [<ffff80008037bc00>] console_emit_next_record kernel/printk/printk.c:2935 [inline]
hardirqs last  enabled at (73095): [<ffff80008037bc00>] console_flush_all+0x650/0xb74 kernel/printk/printk.c:2994
hardirqs last disabled at (73096): [<ffff80008af10b00>] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline]
hardirqs last disabled at (73096): [<ffff80008af10b00>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551
softirqs last  enabled at (73048): [<ffff8000801ea530>] softirq_handle_end kernel/softirq.c:400 [inline]
softirqs last  enabled at (73048): [<ffff8000801ea530>] handle_softirqs+0xa60/0xc34 kernel/softirq.c:582
softirqs last disabled at (73043): [<ffff800080020de8>] __do_softirq+0x14/0x20 kernel/softirq.c:588
CPU: 0 PID: 6625 Comm: syz-executor782 Tainted: G        W          6.10.0-rc2-syzkaller-g8867bbd4a056 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024

Testing showed that the problem did not occur if the two error
messages -- the first two lines above -- were removed; apparently adding
material to the kernel log takes a surprisingly large amount of time.

In any case, the best approach for preventing these lockups and to
avoid spamming the log with thousands of error messages per second is
to ratelimit the two dev_err() calls.  Therefore we replace them with
dev_err_ratelimited().

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Suggested-by: Greg KH <gregkh@linuxfoundation.org>
Reported-and-tested-by: syzbot+5f996b83575ef4058638@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/linux-usb/00000000000073d54b061a6a1c65@google.com/
Reported-and-tested-by: syzbot+1b2abad17596ad03dcff@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/linux-usb/000000000000f45085061aa9b37e@google.com/
Fixes: 9908a32e94de ("USB: remove err() macro from usb class drivers")
Link: https://lore.kernel.org/linux-usb/40dfa45b-5f21-4eef-a8c1-51a2f320e267@rowland.harvard.edu/
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/29855215-52f5-4385-b058-91f42c2bee18@rowland.harvard.edu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-19 14:19:02 +01:00
Uwe Kleine-König
31e597a5ca mmc: davinci: Don't strip remove function when driver is builtin
[ Upstream commit 55c421b364482b61c4c45313a535e61ed5ae4ea3 ]

Using __exit for the remove function results in the remove callback being
discarded with CONFIG_MMC_DAVINCI=y. When such a device gets unbound (e.g.
using sysfs or hotplug), the driver is just removed without the cleanup
being performed. This results in resource leaks. Fix it by compiling in the
remove callback unconditionally.

This also fixes a W=1 modpost warning:

WARNING: modpost: drivers/mmc/host/davinci_mmc: section mismatch in
reference: davinci_mmcsd_driver+0x10 (section: .data) ->
davinci_mmcsd_remove (section: .exit.text)

Fixes: b4cff4549b7a ("DaVinci: MMC: MMC/SD controller driver for DaVinci family")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240324114017.231936-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:01 +01:00