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| author |   Paul Moore <pmoore@redhat.com> | 2014-03-31 09:49:07 -0400 |
|---|---|---|
| committer | Paul Moore <pmoore@redhat.com> | 2014-03-31 09:49:07 -0400 |
| commit | 6d32c850621b0be75777b9102b14f6268bbd9f0f (patch) | |
| tree | fec325f5c1ae763f5eccb3ca1254ab9d9d164b05 /arch/mips/include/asm/syscall.h | |
| parent | selinux: correctly label /proc inodes in use before the policy is loaded (diff) | |
| parent | Linux 3.14 (diff) | |
| download | linux-dev-6d32c850621b0be75777b9102b14f6268bbd9f0f.tar.xz linux-dev-6d32c850621b0be75777b9102b14f6268bbd9f0f.zip | |
Merge tag 'v3.14' into next
Linux 3.14
Diffstat (limited to 'arch/mips/include/asm/syscall.h')
| -rw-r--r-- | arch/mips/include/asm/syscall.h | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h index 81c89132c59d..f35b131977e6 100644 --- a/arch/mips/include/asm/syscall.h +++ b/arch/mips/include/asm/syscall.h @@ -13,6 +13,7 @@ #ifndef __ASM_MIPS_SYSCALL_H #define __ASM_MIPS_SYSCALL_H +#include <linux/compiler.h> #include <linux/audit.h> #include <linux/elf-em.h> #include <linux/kernel.h> @@ -29,7 +30,7 @@ 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: @@ -39,14 +40,14 @@ static inline unsigned long mips_get_syscall_arg(unsigned long *arg, #ifdef CONFIG_32BIT case 4: case 5: case 6: case 7: - return get_user(*arg, (int *)usp + 4 * n); + return get_user(*arg, (int *)usp + n); #endif #ifdef CONFIG_64BIT case 4: case 5: case 6: case 7: #ifdef CONFIG_MIPS32_O32 if (test_thread_flag(TIF_32BIT_REGS)) - return get_user(*arg, (int *)usp + 4 * n); + return get_user(*arg, (int *)usp + n); else #endif *arg = regs->regs[4 + n]; @@ -57,6 +58,8 @@ static inline unsigned long mips_get_syscall_arg(unsigned long *arg, default: BUG(); } + + unreachable(); } static inline long syscall_get_return_value(struct task_struct *task, @@ -83,11 +86,10 @@ static inline void syscall_get_arguments(struct task_struct *task, unsigned int i, unsigned int n, unsigned long *args) { - unsigned long arg; int ret; while (n--) - ret |= mips_get_syscall_arg(&arg, task, regs, i++); + ret |= mips_get_syscall_arg(args++, task, regs, i++); /* * No way to communicate an error because this is a void function. |