d67cad65bf
[ Upstream commit a6c3ea1ec96307dbfbb2f16d96c674c5cc80f445 ]
Remove the unused cif_stack argument and add a protype in oplib_64.h
Commit ef3e035c3a9b ("sparc64: Fix register corruption in top-most
kernel stack frame during boot.") removed the cif_stack argument to
prom_cif init in the declaration at the caller site and the usage of it
within prom_cif_init, but not in the function signature of the function
itself.
This also fixes the following warning:
arch/sparc/prom/p1275.c:52:6: warning: no previous prototype for ‘prom_cif_init’
Fixes: ef3e035c3a9b ("sparc64: Fix register corruption in top-most kernel stack frame during boot.")
Link: https://lore.kernel.org/r/20240710094155.458731-3-andreas@gaisler.com
Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
55 lines
1.1 KiB
C
Executable file
55 lines
1.1 KiB
C
Executable file
// SPDX-License-Identifier: GPL-2.0
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/*
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* p1275.c: Sun IEEE 1275 PROM low level interface routines
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*
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* Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
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*/
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/smp.h>
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#include <linux/string.h>
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#include <linux/spinlock.h>
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#include <linux/irqflags.h>
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#include <asm/openprom.h>
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#include <asm/oplib.h>
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#include <asm/spitfire.h>
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#include <asm/pstate.h>
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#include <asm/ldc.h>
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struct {
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long prom_callback; /* 0x00 */
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void (*prom_cif_handler)(long *); /* 0x08 */
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} p1275buf;
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extern void prom_world(int);
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extern void prom_cif_direct(unsigned long *args);
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extern void prom_cif_callback(void);
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/*
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* This provides SMP safety on the p1275buf.
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*/
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DEFINE_RAW_SPINLOCK(prom_entry_lock);
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void p1275_cmd_direct(unsigned long *args)
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{
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unsigned long flags;
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local_save_flags(flags);
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local_irq_restore((unsigned long)PIL_NMI);
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raw_spin_lock(&prom_entry_lock);
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prom_world(1);
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prom_cif_direct(args);
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prom_world(0);
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raw_spin_unlock(&prom_entry_lock);
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local_irq_restore(flags);
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}
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void prom_cif_init(void *cif_handler)
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{
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p1275buf.prom_cif_handler = (void (*)(long *))cif_handler;
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}
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