The following commit has been merged into the ras/core branch of tip:
Commit-ID: cd5e0d1fc93a2218fbfb2b614f06e04e218ca948
Gitweb: https://git.kernel.org/tip/cd5e0d1fc93a2218fbfb2b614f06e04e218ca948
Author: Borislav Petkov <bp@xxxxxxx>
AuthorDate: Mon, 01 Nov 2021 15:34:48 +01:00
Committer: Borislav Petkov <bp@xxxxxxx>
CommitterDate: Mon, 13 Dec 2021 14:11:22 +01:00
x86/mce: Do not use memset to clear the banks bitmaps
The bitmap is a single unsigned long so no need for the function call.
No functional changes.
Signed-off-by: Borislav Petkov <bp@xxxxxxx>
Link: https://lore.kernel.org/r/20211208111343.8130-2-bp@xxxxxxxxx
---
arch/x86/kernel/cpu/mce/core.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c
index 30de00f..7c264ee 100644
--- a/arch/x86/kernel/cpu/mce/core.c
+++ b/arch/x86/kernel/cpu/mce/core.c
@@ -1336,8 +1336,8 @@ static noinstr void unexpected_machine_check(struct pt_regs *regs)
noinstr void do_machine_check(struct pt_regs *regs)
{
int worst = 0, order, no_way_out, kill_current_task, lmce;
- DECLARE_BITMAP(valid_banks, MAX_NR_BANKS);
- DECLARE_BITMAP(toclear, MAX_NR_BANKS);
+ DECLARE_BITMAP(valid_banks, MAX_NR_BANKS) = { 0 };
+ DECLARE_BITMAP(toclear, MAX_NR_BANKS) = { 0 };
struct mca_config *cfg = &mca_cfg;
struct mce m, *final;
char *msg = NULL;
@@ -1381,7 +1381,6 @@ noinstr void do_machine_check(struct pt_regs *regs)
final = this_cpu_ptr(&mces_seen);
*final = m;
- memset(valid_banks, 0, sizeof(valid_banks));
no_way_out = mce_no_way_out(&m, &msg, valid_banks, regs);
barrier();
|