| From 63238f2cc5518e1c45a3418fc0ac0f560dafe7ef Mon Sep 17 00:00:00 2001 |
| From: Guenter Roeck <linux@roeck-us.net> |
| Date: Mon, 25 Nov 2013 15:21:00 -0800 |
| Subject: MIPS: Fix build error seen in some configurations |
| |
| From: Guenter Roeck <linux@roeck-us.net> |
| |
| 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@roeck-us.net> |
| Acked-by: David Daney <david.daney@cavium.com> |
| Signed-off-by: John Crispin <blogic@openwrt.org> |
| Patchwork: http://patchwork.linux-mips.org/patch/6160/ |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| 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: |
