Commit cd5e0d1f authored by Borislav Petkov's avatar Borislav Petkov
Browse files

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: default avatarBorislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20211208111343.8130-2-bp@alien8.de
parent 1e56279a

arch/x86/kernel/cpu/mce/core.c

+2 −3
Original line number Diff line number Diff line
@@ -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();