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authorBorislav Petkov <bp@suse.de>2020-04-04 01:33:05 +0200
committerBorislav Petkov <bp@suse.de>2020-04-14 14:24:05 +0200
commit593309423cbad0fab659a685834416cf12d8f581 (patch)
tree16cf472c78d953b15ca67886ab1387f03c1841ef /arch/x86/entry
parent8f3d9f354286745c751374f5f1fcafee6b3f3136 (diff)
downloadlinux-593309423cbad0fab659a685834416cf12d8f581.tar.bz2
x86/32: Remove CONFIG_DOUBLEFAULT
Make the doublefault exception handler unconditional on 32-bit. Yes, it is important to be able to catch #DF exceptions instead of silent reboots. Yes, the code size increase is worth every byte. And one less CONFIG symbol is just the cherry on top. No functional changes. Signed-off-by: Borislav Petkov <bp@suse.de> Acked-by: Andy Lutomirski <luto@kernel.org> Link: https://lkml.kernel.org/r/20200404083646.8897-1-bp@alien8.de
Diffstat (limited to 'arch/x86/entry')
-rw-r--r--arch/x86/entry/entry_32.S2
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S
index b67bae7091d7..5c9c7eee6325 100644
--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -1536,7 +1536,6 @@ SYM_CODE_START(debug)
jmp common_exception
SYM_CODE_END(debug)
-#ifdef CONFIG_DOUBLEFAULT
SYM_CODE_START(double_fault)
1:
/*
@@ -1576,7 +1575,6 @@ SYM_CODE_START(double_fault)
hlt
jmp 1b
SYM_CODE_END(double_fault)
-#endif
/*
* NMI is doubly nasty. It can happen on the first instruction of