[tip: x86/urgent] x86/traps: Fix #DE Oops message regression

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The following commit has been merged into the x86/urgent branch of tip:

Commit-ID:     20802fef73a5a98b6e8ed1c0aeca82994d835b13
Gitweb:        https://git.kernel.org/tip/20802fef73a5a98b6e8ed1c0aeca82994d835b13
Author:        Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate:    Mon, 12 Oct 2020 15:11:47 +02:00
Committer:     Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitterDate: Mon, 12 Oct 2020 15:16:56 +02:00

x86/traps: Fix #DE Oops message regression

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@xxxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Link: https://lore.kernel.org/r/CACT4Y+bTZFkuZd7+bPArowOv-7Die+WZpfOWnEO_Wgs3U59+oA@xxxxxxxxxxxxxx
---
 arch/x86/kernel/traps.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 81a2fb7..316ce1c 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -195,7 +195,7 @@ static __always_inline void __user *error_get_trap_addr(struct pt_regs *regs)
 
 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));
 }
 



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