The patch titled Subject: ia64: mca: Drop redundant spinlock initialization has been added to the -mm mm-nonmm-unstable branch. Its filename is ia64-mca-drop-redundant-spinlock-initialization.patch This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/ia64-mca-drop-redundant-spinlock-initialization.patch This patch will later appear in the mm-nonmm-unstable branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next via the mm-everything branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm and is updated there every 2-3 working days ------------------------------------------------------ From: Haowen Bai <baihaowen@xxxxxxxxx> Subject: ia64: mca: Drop redundant spinlock initialization mlogbuf_rlock has declared and initialized by DEFINE_SPINLOCK, so we don't need to spin_lock_init again, drop it. Link: https://lkml.kernel.org/r/1652176897-4754-1-git-send-email-baihaowen@xxxxxxxxx Signed-off-by: Haowen Bai <baihaowen@xxxxxxxxx> Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/ia64/kernel/mca.c | 1 - 1 file changed, 1 deletion(-) --- a/arch/ia64/kernel/mca.c~ia64-mca-drop-redundant-spinlock-initialization +++ a/arch/ia64/kernel/mca.c @@ -290,7 +290,6 @@ static void ia64_mlogbuf_finish(int wait { BREAK_LOGLEVEL(console_loglevel); - spin_lock_init(&mlogbuf_rlock); ia64_mlogbuf_dump(); printk(KERN_EMERG "mlogbuf_finish: printing switched to urgent mode, " "MCA/INIT might be dodgy or fail.\n"); _ Patches currently in -mm which might be from baihaowen@xxxxxxxxx are ia64-mca-drop-redundant-spinlock-initialization.patch