summaryrefslogtreecommitdiffstats
path: root/arch/arm64/include/asm
diff options
context:
space:
mode:
authorIngo Molnar <mingo@kernel.org>2019-04-10 09:14:42 +0200
committerIngo Molnar <mingo@kernel.org>2019-04-10 09:14:42 +0200
commit54bbfe75cbb10384b0a62efae80fde21deea1dd0 (patch)
treeeed22c29cdecce36153bbb83ee7a9da7eed60ccd /arch/arm64/include/asm
parentlocking/rwsem: Optimize down_read_trylock() (diff)
parentBluetooth: btusb: request wake pin with NOAUTOEN (diff)
downloadlinux-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.h46
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, &regs->regs[i], n * sizeof(args[0]));
+ args[0] = regs->orig_x0;
+ args++;
+
+ memcpy(args, &regs->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(&regs->regs[i], args, n * sizeof(args[0]));
+ regs->orig_x0 = args[0];
+ args++;
+
+ memcpy(&regs->regs[1], args, 5 * sizeof(args[0]));
}
/*