Messages in this thread Patch in this message |  | | Date | Thu, 09 Jul 2020 09:22:50 -0000 | From | "tip-bot2 for Thomas Gleixner" <> | Subject | [tip: x86/urgent] x86/entry: Mark check_user_regs() noinstr |
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The following commit has been merged into the x86/urgent branch of tip:
Commit-ID: 006e1ced516d2bfd9db63a32b5dba3c2abf43b04 Gitweb: https://git.kernel.org/tip/006e1ced516d2bfd9db63a32b5dba3c2abf43b04 Author: Thomas Gleixner <tglx@linutronix.de> AuthorDate: Wed, 08 Jul 2020 21:28:06 +02:00 Committer: Thomas Gleixner <tglx@linutronix.de> CommitterDate: Thu, 09 Jul 2020 11:18:29 +02:00
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
--- arch/x86/entry/common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c index e83b3f1..ea7b515 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)) { /*
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