diff options
author | Ingo Molnar <mingo@kernel.org> | 2019-04-10 09:14:42 +0200 |
---|---|---|
committer | Ingo Molnar <mingo@kernel.org> | 2019-04-10 09:14:42 +0200 |
commit | 54bbfe75cbb10384b0a62efae80fde21deea1dd0 (patch) | |
tree | eed22c29cdecce36153bbb83ee7a9da7eed60ccd /arch/arm64/include/asm | |
parent | locking/rwsem: Optimize down_read_trylock() (diff) | |
parent | Bluetooth: btusb: request wake pin with NOAUTOEN (diff) | |
download | linux-54bbfe75cbb10384b0a62efae80fde21deea1dd0.tar.xz linux-54bbfe75cbb10384b0a62efae80fde21deea1dd0.zip |
Merge branch 'linus' into locking/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/arm64/include/asm')
-rw-r--r-- | arch/arm64/include/asm/syscall.h | 46 |
1 files changed, 8 insertions, 38 deletions
diff --git a/arch/arm64/include/asm/syscall.h b/arch/arm64/include/asm/syscall.h index ad8be16a39c9..a179df3674a1 100644 --- a/arch/arm64/include/asm/syscall.h +++ b/arch/arm64/include/asm/syscall.h @@ -65,52 +65,22 @@ static inline void syscall_set_return_value(struct task_struct *task, static inline void syscall_get_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, unsigned long *args) { - if (n == 0) - return; - - if (i + n > SYSCALL_MAX_ARGS) { - unsigned long *args_bad = args + SYSCALL_MAX_ARGS - i; - unsigned int n_bad = n + i - SYSCALL_MAX_ARGS; - pr_warning("%s called with max args %d, handling only %d\n", - __func__, i + n, SYSCALL_MAX_ARGS); - memset(args_bad, 0, n_bad * sizeof(args[0])); - } - - if (i == 0) { - args[0] = regs->orig_x0; - args++; - i++; - n--; - } - - memcpy(args, ®s->regs[i], n * sizeof(args[0])); + args[0] = regs->orig_x0; + args++; + + memcpy(args, ®s->regs[1], 5 * sizeof(args[0])); } static inline void syscall_set_arguments(struct task_struct *task, struct pt_regs *regs, - unsigned int i, unsigned int n, const unsigned long *args) { - if (n == 0) - return; - - if (i + n > SYSCALL_MAX_ARGS) { - pr_warning("%s called with max args %d, handling only %d\n", - __func__, i + n, SYSCALL_MAX_ARGS); - n = SYSCALL_MAX_ARGS - i; - } - - if (i == 0) { - regs->orig_x0 = args[0]; - args++; - i++; - n--; - } - - memcpy(®s->regs[i], args, n * sizeof(args[0])); + regs->orig_x0 = args[0]; + args++; + + memcpy(®s->regs[1], args, 5 * sizeof(args[0])); } /* |