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authorBorislav Petkov <bp@suse.de>2020-04-04 02:33:05 +0300
committerBorislav Petkov <bp@suse.de>2020-04-14 15:24:05 +0300
commit593309423cbad0fab659a685834416cf12d8f581 (patch)
tree16cf472c78d953b15ca67886ab1387f03c1841ef /arch/x86/Kconfig.debug
parent8f3d9f354286745c751374f5f1fcafee6b3f3136 (diff)
downloadlinux-593309423cbad0fab659a685834416cf12d8f581.tar.xz
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/Kconfig.debug')
-rw-r--r--arch/x86/Kconfig.debug9
1 files changed, 0 insertions, 9 deletions
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 2e74690b028a..f909d3ce36e6 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -99,15 +99,6 @@ config DEBUG_WX
If in doubt, say "Y".
-config DOUBLEFAULT
- default y
- bool "Enable doublefault exception handler" if EXPERT && X86_32
- ---help---
- This option allows trapping of rare doublefault exceptions that
- would otherwise cause a system to silently reboot. Disabling this
- option saves about 4k and might cause you much additional grey
- hair.
-
config DEBUG_TLBFLUSH
bool "Set upper limit of TLB entries to flush one-by-one"
depends on DEBUG_KERNEL