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author | David S. Miller <davem@davemloft.net> | 2019-04-09 09:39:36 +0300 |
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committer | David S. Miller <davem@davemloft.net> | 2019-04-09 09:39:36 +0300 |
commit | 310655b07ae8ef0b8fdb641b610ded2052215664 (patch) | |
tree | d9b7a500ef21a087a337e1f1bb9218000cf1c03d /arch/arm/include/asm/syscall.h | |
parent | 7f301cff1fc20c5b91203c5e610cf95782081d5d (diff) | |
parent | 869e3305f23dfeacdaa234717c92ccb237815d90 (diff) | |
download | linux-310655b07ae8ef0b8fdb641b610ded2052215664.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'arch/arm/include/asm/syscall.h')
-rw-r--r-- | arch/arm/include/asm/syscall.h | 47 |
1 files changed, 8 insertions, 39 deletions
diff --git a/arch/arm/include/asm/syscall.h b/arch/arm/include/asm/syscall.h index 06dea6bce293..080ce70cab12 100644 --- a/arch/arm/include/asm/syscall.h +++ b/arch/arm/include/asm/syscall.h @@ -55,53 +55,22 @@ 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_warn("%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])); - n = SYSCALL_MAX_ARGS - i; - } - - if (i == 0) { - args[0] = regs->ARM_ORIG_r0; - args++; - i++; - n--; - } - - memcpy(args, ®s->ARM_r0 + i, n * sizeof(args[0])); + args[0] = regs->ARM_ORIG_r0; + args++; + + memcpy(args, ®s->ARM_r0 + 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_warn("%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->ARM_ORIG_r0 = args[0]; - args++; - i++; - n--; - } - - memcpy(®s->ARM_r0 + i, args, n * sizeof(args[0])); + regs->ARM_ORIG_r0 = args[0]; + args++; + + memcpy(®s->ARM_r0 + 1, args, 5 * sizeof(args[0])); } static inline int syscall_get_arch(void) |