+ mm-hugetlb-remove-unnecessary-null-values-from-pointer.patch added to mm-unstable branch

+ mm-hugetlb-remove-unnecessary-null-values-from-pointer.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: mm/hugetlb: remove unnecessary 'NULL' values from pointer
has been added to the -mm mm-unstable branch.  Its filename is
     mm-hugetlb-remove-unnecessary-null-values-from-pointer.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-hugetlb-remove-unnecessary-null-values-from-pointer.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: XU pengfei <xupengfei@nfschina.com>
Subject: mm/hugetlb: remove unnecessary 'NULL' values from pointer
Date: Wed, 14 Sep 2022 09:21:14 +0800

Pointer variables allocate memory first, and then judge.  There is no need
to initialize the assignment.

Link: https://lkml.kernel.org/r/20220914012113.6271-1-xupengfei@nfschina.com
Signed-off-by: XU pengfei <xupengfei@nfschina.com>
Reviewed-by: Muchun Song <songmuchun@bytedance.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/hugetlb.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/mm/hugetlb.c~mm-hugetlb-remove-unnecessary-null-values-from-pointer
+++ a/mm/hugetlb.c
@@ -258,7 +258,7 @@ static inline struct hugepage_subpool *s
 static struct file_region *
 get_file_region_entry_from_cache(struct resv_map *resv, long from, long to)
 {
-	struct file_region *nrg = NULL;
+	struct file_region *nrg;
 
 	VM_BUG_ON(resv->region_cache_count <= 0);
 
@@ -340,7 +340,7 @@ static bool has_same_uncharge_info(struc
 
 static void coalesce_file_region(struct resv_map *resv, struct file_region *rg)
 {
-	struct file_region *nrg = NULL, *prg = NULL;
+	struct file_region *nrg, *prg;
 
 	prg = list_prev_entry(rg, link);
 	if (&prg->link != &resv->regions && prg->to == rg->from &&
_

Patches currently in -mm which might be from xupengfei@nfschina.com are

mm-hugetlb-remove-unnecessary-null-values-from-pointer.patch