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arm64: fpsimd: Correctly annotate exception helpers called from asm

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A couple of FPSIMD exception handling functions that are called
from entry.S are currently not annotated as such.

This is not a big deal since asmlinkage does nothing on arm/arm64,
but fixing the annotations is more consistent and may help avoid
future surprises.

This patch adds appropriate asmlinkage annotations for
do_fpsimd_acc() and do_fpsimd_exc().

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Dave Martin 2017-10-31 15:50:54 +00:00 committed by Will Deacon
parent 27e64b4be4
commit 94ef7ecbdf
1 changed files with 3 additions and 2 deletions
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5
arch/arm64/kernel/fpsimd.c
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@ -21,6 +21,7 @@
#include <linux/cpu.h> #include <linux/cpu.h>
#include <linux/cpu_pm.h> #include <linux/cpu_pm.h>
#include <linux/kernel.h> #include <linux/kernel.h>
#include <linux/linkage.h>
#include <linux/init.h> #include <linux/init.h>
#include <linux/percpu.h> #include <linux/percpu.h>
#include <linux/preempt.h> #include <linux/preempt.h>
@ -102,7 +103,7 @@ static DEFINE_PER_CPU(struct fpsimd_state *, fpsimd_last_state);
/* /*
* Trapped FP/ASIMD access. * Trapped FP/ASIMD access.
*/ */
void do_fpsimd_acc(unsigned int esr, struct pt_regs *regs) asmlinkage void do_fpsimd_acc(unsigned int esr, struct pt_regs *regs)
{ {
/* TODO: implement lazy context saving/restoring */ /* TODO: implement lazy context saving/restoring */
WARN_ON(1); WARN_ON(1);
@ -111,7 +112,7 @@ void do_fpsimd_acc(unsigned int esr, struct pt_regs *regs)
/* /*
* Raise a SIGFPE for the current process. * Raise a SIGFPE for the current process.
*/ */
void do_fpsimd_exc(unsigned int esr, struct pt_regs *regs) asmlinkage void do_fpsimd_exc(unsigned int esr, struct pt_regs *regs)
{ {
siginfo_t info; siginfo_t info;
unsigned int si_code = 0; unsigned int si_code = 0;