Messages in this thread | | | Date | Mon, 25 Nov 2013 16:09:52 -0800 | From | David Daney <> | Subject | Re: [PATCH] mips: Fix build error seen in some configurations |
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On 11/25/2013 03:21 PM, Guenter Roeck wrote: > 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>
> --- > arch/mips/include/asm/syscall.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h > index 81c8913..33e8dbf 100644 > --- 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 task_struct *task, > 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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