[PATCH v6 07/39] kmsan: Remove a useless assignment from kmsan_vmap_pages_range_noflush()
From: Ilya Leoshkevich <iii@linux.ibm.com>
Date: 2024-06-21 00:27:01
Also in:
linux-mm, linux-s390, lkml
Subsystem:
kmsan, memory management, the rest · Maintainers:
Alexander Potapenko, Andrew Morton, Linus Torvalds
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.
Fixes: b073d7f8aee4 ("mm: kmsan: maintain KMSAN metadata for page operations")
Suggested-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
---
mm/kmsan/shadow.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/mm/kmsan/shadow.c b/mm/kmsan/shadow.c
index b9d05aff313e..2d57408c78ae 100644
--- a/mm/kmsan/shadow.c
+++ b/mm/kmsan/shadow.c@@ -243,7 +243,6 @@ int kmsan_vmap_pages_range_noflush(unsigned long start, unsigned long end, 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);
--
2.45.1