mirror of https://github.com/torvalds/linux.git
a554e740b6
A discussion around -Wundef showed that there were still a few boolean
Kconfigs where #if was used rather than #ifdef to guard different code.
Kconfig doesn't define boolean configs, which can result in -Wundef
warnings.
arch/x86/boot/compressed/Makefile resets the CFLAGS used for this
directory, and doesn't re-enable -Wundef as the top level Makefile does.
If re-added, with RANDOMIZE_BASE and X86_NEED_RELOCS disabled, the
following warnings are visible.
arch/x86/boot/compressed/misc.h:82:5: warning: 'CONFIG_RANDOMIZE_BASE'
is not defined, evaluates to 0 [-Wundef]
^
arch/x86/boot/compressed/misc.c:175:5: warning: 'CONFIG_X86_NEED_RELOCS'
is not defined, evaluates to 0 [-Wundef]
^
Simply fix these and re-enable this warning for this directory.
Suggested-by: Nathan Chancellor <nathan@kernel.org>
Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20210422190450.3903999-1-ndesaulniers@google.com
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| .. | ||
| .gitignore | ||
| Makefile | ||
| acpi.c | ||
| cmdline.c | ||
| cpuflags.c | ||
| early_serial_console.c | ||
| efi_thunk_64.S | ||
| error.c | ||
| error.h | ||
| head_32.S | ||
| head_64.S | ||
| ident_map_64.c | ||
| idt_64.c | ||
| idt_handlers_64.S | ||
| kaslr.c | ||
| kernel_info.S | ||
| mem_encrypt.S | ||
| misc.c | ||
| misc.h | ||
| mkpiggy.c | ||
| pgtable.h | ||
| pgtable_64.c | ||
| sev.c | ||
| string.c | ||
| vmlinux.lds.S | ||