3.13-stable review patch. If anyone has any objections, please let me know.
------------------
From: Guenter Roeck <linux@xxxxxxxxxxxx>
commit 63238f2cc5518e1c45a3418fc0ac0f560dafe7ef upstream.
The following build error is seen if CONFIG_32BIT is undefined,
CONFIG_64BIT is defined, and CONFIG_MIPS32_O32 is undefined.
asm/syscall.h: In function 'mips_get_syscall_arg':
arch/mips/include/asm/syscall.h:32:16: error: unused variable 'usp' [-Werror=unused-variable]
cc1: all warnings being treated as errors
Fixes: c0ff3c53d4f9 ('MIPS: Enable HAVE_ARCH_TRACEHOOK')
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
Acked-by: David Daney <david.daney@xxxxxxxxxx>
Signed-off-by: John Crispin <blogic@xxxxxxxxxxx>
Patchwork: http://patchwork.linux-mips.org/patch/6160/
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/mips/include/asm/syscall.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/mips/include/asm/syscall.h
+++ b/arch/mips/include/asm/syscall.h
@@ -29,7 +29,7 @@ static inline long syscall_get_nr(struct
static inline unsigned long mips_get_syscall_arg(unsigned long *arg,
struct task_struct *task, struct pt_regs *regs, unsigned int n)
{
- unsigned long usp = regs->regs[29];
+ unsigned long usp __maybe_unused = regs->regs[29];
switch (n) {
case 0: case 1: case 2: case 3:
--
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