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| author | Thomas Gleixner <tglx@linutronix.de> | 2020-07-08 21:28:06 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-07-09 11:18:29 +0200 |
| commit | 006e1ced516d2bfd9db63a32b5dba3c2abf43b04 (patch) | |
| tree | af48b2029b9b065d25f8afcca4079bb392883d2d | |
| parent | x86/traps: Disable interrupts in exc_aligment_check() (diff) | |
| download | linux-006e1ced516d2bfd9db63a32b5dba3c2abf43b04.tar.xz linux-006e1ced516d2bfd9db63a32b5dba3c2abf43b04.zip | |
x86/entry: Mark check_user_regs() noinstr
It's called from the non-instrumentable section.
Fixes: c9c26150e61d ("x86/entry: Assert that syscalls are on the right stack")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Andy Lutomirski <luto@kernel.org>
Link: https://lkml.kernel.org/r/20200708192934.191497962@linutronix.de
| -rw-r--r-- | arch/x86/entry/common.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c index e83b3f14897c..ea7b515e3bc2 100644 --- a/arch/x86/entry/common.c +++ b/arch/x86/entry/common.c @@ -46,7 +46,7 @@ #include <trace/events/syscalls.h> /* Check that the stack and regs on entry from user mode are sane. */ -static void check_user_regs(struct pt_regs *regs) +static noinstr void check_user_regs(struct pt_regs *regs) { if (IS_ENABLED(CONFIG_DEBUG_ENTRY)) { /* |