Commit 1f18b296 authored Sep 23, 2019 by YueHaibing Committed by Linus Torvalds Sep 24, 2019

mm/rmap.c: remove set but not used variable 'cstart'

Fixes gcc '-Wunused-but-set-variable' warning:

mm/rmap.c: In function page_mkclean_one:
mm/rmap.c:906:17: warning: variable cstart set but not used [-Wunused-but-set-variable]

It is not used any more since
commit cdb07bde ("mm/rmap.c: remove redundant variable cend")

Link: http://lkml.kernel.org/r/20190724141453.38536-1-yuehaibing@huawei.com


Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reported-by: Hulk Robot <hulkci@huawei.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent dbf7684e

mm/rmap.c

+1 −3

Original line number	Diff line number	Diff line
		@@ -903,10 +903,9 @@ static bool page_mkclean_one(struct page page, struct vm_area_struct vma,
		mmu_notifier_invalidate_range_start(&range);

		while (page_vma_mapped_walk(&pvmw)) {
		unsigned long cstart;
		int ret = 0;

		cstart = address = pvmw.address;
		address = pvmw.address;
		if (pvmw.pte) {
		pte_t entry;
		pte_t *pte = pvmw.pte;
		@@ -933,7 +932,6 @@ static bool page_mkclean_one(struct page page, struct vm_area_struct vma,
		entry = pmd_wrprotect(entry);
		entry = pmd_mkclean(entry);
		set_pmd_at(vma->vm_mm, address, pmd, entry);
		cstart &= PMD_MASK;
		ret = 1;
		#else
		/* unexpected pmd-mapped page? */

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