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kernel_samsung_a53x/drivers/net/ethernet/stmicro/stmmac
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KhaiWenTan 9f91978b91 net: stmmac: Fix zero-division error when disabling tc cbs 
commit 675faf5a14c14a2be0b870db30a70764df81e2df upstream.

The commit b8c43360f6e4 ("net: stmmac: No need to calculate speed divider
when offload is disabled") allows the "port_transmit_rate_kbps" to be
set to a value of 0, which is then passed to the "div_s64" function when
tc-cbs is disabled. This leads to a zero-division error.

When tc-cbs is disabled, the idleslope, sendslope, and credit values the
credit values are not required to be configured. Therefore, adding a return
statement after setting the txQ mode to DCB when tc-cbs is disabled would
prevent a zero-division error.

Fixes: b8c43360f6e4 ("net: stmmac: No need to calculate speed divider when offload is disabled")
Cc: <stable@vger.kernel.org>
Co-developed-by: Choong Yong Liang <yong.liang.choong@linux.intel.com>
Signed-off-by: Choong Yong Liang <yong.liang.choong@linux.intel.com>
Signed-off-by: KhaiWenTan <khai.wen.tan@linux.intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20240918061422.1589662-1-khai.wen.tan@linux.intel.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-23 23:21:46 +01:00
..
altr_tse_pcs.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
altr_tse_pcs.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
chain_mode.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
common.h net: stmmac: xgmac: fix handling of DPP safety error for DMA channels 2024-11-18 12:13:24 +01:00
descs.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
descs_com.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dwmac-anarion.c Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
dwmac-dwc-qos-eth.c Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
dwmac-generic.c Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
dwmac-imx.c Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
dwmac-intel-plat.c Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
dwmac-intel.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dwmac-intel.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dwmac-ipq806x.c Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
dwmac-lpc18xx.c Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
dwmac-mediatek.c Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
dwmac-meson.c Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
dwmac-meson8b.c Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
dwmac-oxnas.c Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
dwmac-qcom-ethqos.c Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
dwmac-rk.c Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
dwmac-socfpga.c Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
dwmac-sti.c Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
dwmac-stm32.c Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
dwmac-sun8i.c Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
dwmac-sunxi.c Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
dwmac4.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dwmac4_core.c net: stmmac: Correct byte order of perfect_match 2024-11-23 23:20:17 +01:00
dwmac4_descs.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dwmac4_descs.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dwmac4_dma.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dwmac4_dma.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dwmac4_lib.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dwmac5.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dwmac5.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dwmac100.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dwmac100_core.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dwmac100_dma.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dwmac1000.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dwmac1000_core.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dwmac1000_dma.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dwmac_dma.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dwmac_lib.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dwxgmac2.h net: stmmac: xgmac: fix a typo of register name in DPP safety handling 2024-11-18 12:13:27 +01:00
dwxgmac2_core.c net: stmmac: Correct byte order of perfect_match 2024-11-23 23:20:17 +01:00
dwxgmac2_descs.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dwxgmac2_dma.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dwxlgmac2.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
enh_desc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
hwif.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
hwif.h net: stmmac: Correct byte order of perfect_match 2024-11-23 23:20:17 +01:00
Kconfig Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Makefile Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mmc.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mmc_core.c net: stmmac: xgmac: Disable FPE MMC interrupts 2024-11-18 12:11:11 +01:00
norm_desc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ring_mode.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
stmmac.h Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
stmmac_ethtool.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
stmmac_hwtstamp.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
stmmac_main.c net: stmmac: Correct byte order of perfect_match 2024-11-23 23:20:17 +01:00
stmmac_mdio.c net: stmmac: Handle disabled MDIO busses from devicetree 2024-11-18 12:11:49 +01:00
stmmac_pci.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
stmmac_pcs.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
stmmac_platform.c Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
stmmac_platform.h Backport mac80211 patches from linux-6.1.y 2024-06-15 16:29:20 -03:00
stmmac_ptp.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
stmmac_ptp.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
stmmac_selftests.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
stmmac_tc.c net: stmmac: Fix zero-division error when disabling tc cbs 2024-11-23 23:21:46 +01:00