diff options
| author | Qiuxu Zhuo <qiuxu.zhuo@intel.com> | 2024-12-12 22:00:58 +0800 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2024-12-30 19:45:03 +0100 |
| commit | 64a668fbea1b6ec06ddca66d09cc49352f063342 (patch) | |
| tree | 05fee654ce2743841df18da5cc9be3f8997fd39c | |
| parent | c845cb8dbd2e1a804babfd13648026c3a7cfbc0b (diff) | |
x86/mce/threshold: Remove the redundant this_cpu_dec_return()
The 'storm' variable points to this_cpu_ptr(&storm_desc). Access the
'stormy_bank_count' field through the 'storm' to avoid calling
this_cpu_*() on the same per-CPU variable twice.
This minor optimization reduces the text size by 16 bytes.
$ size threshold.o.*
text data bss dec hex filename
1395 1664 0 3059 bf3 threshold.o.old
1379 1664 0 3043 be3 threshold.o.new
No functional changes intended.
Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Nikolay Borisov <nik.borisov@suse.com>
Reviewed-by: Sohil Mehta <sohil.mehta@intel.com>
Reviewed-by: Yazen Ghannam <yazen.ghannam@amd.com>
Link: https://lore.kernel.org/r/20241212140103.66964-3-qiuxu.zhuo@intel.com
| -rw-r--r-- | arch/x86/kernel/cpu/mce/threshold.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/mce/threshold.c b/arch/x86/kernel/cpu/mce/threshold.c index 89e31e1e5c9c..f4a007616468 100644 --- a/arch/x86/kernel/cpu/mce/threshold.c +++ b/arch/x86/kernel/cpu/mce/threshold.c @@ -90,7 +90,7 @@ void cmci_storm_end(unsigned int bank) storm->banks[bank].in_storm_mode = false; /* If no banks left in storm mode, stop polling. */ - if (!this_cpu_dec_return(storm_desc.stormy_bank_count)) + if (!--storm->stormy_bank_count) mce_timer_kick(false); } |