lkml.org 
[lkml]   [2021]   [Jun]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 5.12 015/110] x86/entry: Fix noinstr fail in __do_fast_syscall_32()
Date
From: Peter Zijlstra <peterz@infradead.org>

[ Upstream commit 240001d4e3041832e8a2654adc3ccf1683132b92 ]

Fix:

vmlinux.o: warning: objtool: __do_fast_syscall_32()+0xf5: call to trace_hardirqs_off() leaves .noinstr.text section

Fixes: 5d5675df792f ("x86/entry: Fix entry/exit mismatch on failed fast 32-bit syscalls")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20210621120120.467898710@infradead.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
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 4efd39aacb9f..cbe19c87e6be 100644
--- a/arch/x86/entry/common.c
+++ b/arch/x86/entry/common.c
@@ -127,8 +127,8 @@ static noinstr bool __do_fast_syscall_32(struct pt_regs *regs)
/* User code screwed up. */
regs->ax = -EFAULT;

- instrumentation_end();
local_irq_disable();
+ instrumentation_end();
irqentry_exit_to_user_mode(regs);
return false;
}
--
2.30.2
\
 
 \ /
  Last update: 2021-06-28 16:20    [W:0.512 / U:0.156 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site