x86/32: Remove CONFIG_DOUBLEFAULT

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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

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This commit is contained in:

Borislav Petkov 2020-04-04 01:33:05 +02:00

parent 8f3d9f3542

commit 593309423c

9 changed files with 3 additions and 27 deletions

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9

arch/x86/Kconfig.debug

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2

arch/x86/entry/entry_32.S

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2

arch/x86/include/asm/doublefault.h

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2

arch/x86/include/asm/traps.h

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4

arch/x86/kernel/Makefile

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4

arch/x86/kernel/dumpstack_32.c

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2

arch/x86/kernel/traps.c

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4

arch/x86/mm/cpu_entry_area.c

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1

tools/testing/selftests/wireguard/qemu/debug.config

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