+ mm-migrate-remove-redundant-variables-used-in-a-for-loop.patch added to -mm tree

[akpm@linux-foundation.org]

The patch titled
     Subject: mm/migrate: remove redundant variables used in a for-loop
has been added to the -mm tree.  Its filename is
     mm-migrate-remove-redundant-variables-used-in-a-for-loop.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-migrate-remove-redundant-variables-used-in-a-for-loop.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-migrate-remove-redundant-variables-used-in-a-for-loop.patch

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 and is updated
there every 3-4 working days

------------------------------------------------------
From: Colin Ian King <colin.i.king@gmail.com>
Subject: mm/migrate: remove redundant variables used in a for-loop

The variable addr is being set and incremented in a for-loop but not
actually being used.  It is redundant and so addr and also variable start
can be removed.

Link: https://lkml.kernel.org/r/20211221185729.609630-1-colin.i.king@gmail.com
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/migrate.c |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

--- a/mm/migrate.c~mm-migrate-remove-redundant-variables-used-in-a-for-loop
+++ a/mm/migrate.c
@@ -2451,8 +2451,7 @@ static bool migrate_vma_check_page(struc
 static void migrate_vma_unmap(struct migrate_vma *migrate)
 {
 	const unsigned long npages = migrate->npages;
-	const unsigned long start = migrate->start;
-	unsigned long addr, i, restore = 0;
+	unsigned long i, restore = 0;
 	bool allow_drain = true;
 
 	lru_add_drain();
@@ -2498,7 +2497,7 @@ static void migrate_vma_unmap(struct mig
 		}
 	}
 
-	for (addr = start, i = 0; i < npages && restore; addr += PAGE_SIZE, i++) {
+	for (i = 0; i < npages && restore; i++) {
 		struct page *page = migrate_pfn_to_page(migrate->src[i]);
 
 		if (!page || (migrate->src[i] & MIGRATE_PFN_MIGRATE))
_

Patches currently in -mm which might be from colin.i.king@gmail.com are

mm-migrate-remove-redundant-variables-used-in-a-for-loop.patch