The quilt patch titled
Subject: kmsan: remove a useless assignment from kmsan_vmap_pages_range_noflush()
has been removed from the -mm tree. Its filename was
kmsan-remove-a-useless-assignment-from-kmsan_vmap_pages_range_noflush.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Ilya Leoshkevich <iii@xxxxxxxxxxxxx>
Subject: kmsan: remove a useless assignment from kmsan_vmap_pages_range_noflush()
Date: Fri, 21 Jun 2024 13:34:51 +0200
The value assigned to prot is immediately overwritten on the next line
with PAGE_KERNEL. The right hand side of the assignment has no
side-effects.
Link: https://lkml.kernel.org/r/20240621113706.315500-8-iii@xxxxxxxxxxxxx
Fixes: b073d7f8aee4 ("mm: kmsan: maintain KMSAN metadata for page operations")
Signed-off-by: Ilya Leoshkevich <iii@xxxxxxxxxxxxx>
Suggested-by: Alexander Gordeev <agordeev@xxxxxxxxxxxxx>
Reviewed-by: Alexander Potapenko <glider@xxxxxxxxxx>
Cc: Christian Borntraeger <borntraeger@xxxxxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: Heiko Carstens <hca@xxxxxxxxxxxxx>
Cc: Hyeonggon Yoo <42.hyeyoo@xxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Cc: <kasan-dev@xxxxxxxxxxxxxxxx>
Cc: Marco Elver <elver@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: Roman Gushchin <roman.gushchin@xxxxxxxxx>
Cc: Steven Rostedt (Google) <rostedt@xxxxxxxxxxx>
Cc: Sven Schnelle <svens@xxxxxxxxxxxxx>
Cc: Vasily Gorbik <gor@xxxxxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/kmsan/shadow.c | 1 -
1 file changed, 1 deletion(-)
--- a/mm/kmsan/shadow.c~kmsan-remove-a-useless-assignment-from-kmsan_vmap_pages_range_noflush
+++ a/mm/kmsan/shadow.c
@@ -243,7 +243,6 @@ int kmsan_vmap_pages_range_noflush(unsig
s_pages[i] = shadow_page_for(pages[i]);
o_pages[i] = origin_page_for(pages[i]);
}
- prot = __pgprot(pgprot_val(prot) | _PAGE_NX);
prot = PAGE_KERNEL;
origin_start = vmalloc_meta((void *)start, KMSAN_META_ORIGIN);
_
Patches currently in -mm which might be from iii@xxxxxxxxxxxxx are
