[PATCH 5.8 51/70] x86/traps: Fix #DE Oops message regression

Greg Kroah-Hartman
2020-10-31T11:43:23Z

From: Thomas Gleixner <tglx@linutronix.de>

commit 5f1ec1fd32252af5130dac23b5542e8e66fe0bcb upstream.

The conversion of #DE to the idtentry mechanism introduced a change in the
Ooops message which confuses tools which parse crash information in dmesg.

Remove the underscore from 'divide_error' to restore previous behaviour.

Fixes: 9d06c4027f21 ("x86/entry: Convert Divide Error to IDTENTRY")
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/CACT4Y+bTZFkuZd7+bPArowOv-7Die+WZpfOWnEO_Wgs3U59+oA@mail.gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
arch/x86/kernel/traps.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -196,7 +196,7 @@ static __always_inline void __user *erro

DEFINE_IDTENTRY(exc_divide_error)
{
- do_error_trap(regs, 0, "divide_error", X86_TRAP_DE, SIGFPE,
+ do_error_trap(regs, 0, "divide error", X86_TRAP_DE, SIGFPE,
FPE_INTDIV, error_get_trap_addr(regs));
}