diff options
| author | Borislav Petkov <bp@suse.de> | 2016-02-03 12:33:31 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-02-09 11:41:15 +0100 |
| commit | e8c8165ecfb1cfd6650777c193361d33b0f7f59e (patch) | |
| tree | 315548831c7fa011e96b79528488097c9b16eb09 /arch/x86/kernel | |
| parent | x86/microcode/intel: Make early loader look for builtin microcode too (diff) | |
| download | linux-e8c8165ecfb1cfd6650777c193361d33b0f7f59e.tar.xz linux-e8c8165ecfb1cfd6650777c193361d33b0f7f59e.zip | |
x86/microcode: Remove redundant __setup() param parsing
We do parse for the disable microcode loader chicken bit very early.
After the driver merge, the __setup() param parsing method is not needed
anymore so get rid of it.
In addition, fix a compiler warning from an old SLES11 gcc (4.3.4)
reported by Jan Beulich <jbeulich@suse.com>:
arch/x86/kernel/cpu/microcode/core.c: In function ‘load_ucode_bsp’:
arch/x86/kernel/cpu/microcode/core.c:96: warning: array subscript is above array bounds
Tested-by: Thomas Voegtle <tv@lio96.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1454499225-21544-4-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/cpu/microcode/core.c | 15 |
1 files changed, 4 insertions, 11 deletions
diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c index faec7120c508..bca4e48b531d 100644 --- a/arch/x86/kernel/cpu/microcode/core.c +++ b/arch/x86/kernel/cpu/microcode/core.c @@ -43,16 +43,8 @@ #define MICROCODE_VERSION "2.01" static struct microcode_ops *microcode_ops; - static bool dis_ucode_ldr; -static int __init disable_loader(char *str) -{ - dis_ucode_ldr = true; - return 1; -} -__setup("dis_ucode_ldr", disable_loader); - /* * Synchronization. * @@ -81,15 +73,16 @@ struct cpu_info_ctx { static bool __init check_loader_disabled_bsp(void) { + static const char *__dis_opt_str = "dis_ucode_ldr"; + #ifdef CONFIG_X86_32 const char *cmdline = (const char *)__pa_nodebug(boot_command_line); - const char *opt = "dis_ucode_ldr"; - const char *option = (const char *)__pa_nodebug(opt); + const char *option = (const char *)__pa_nodebug(__dis_opt_str); bool *res = (bool *)__pa_nodebug(&dis_ucode_ldr); #else /* CONFIG_X86_64 */ const char *cmdline = boot_command_line; - const char *option = "dis_ucode_ldr"; + const char *option = __dis_opt_str; bool *res = &dis_ucode_ldr; #endif |