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authorAlexey Dobriyan <adobriyan@gmail.com>2019-12-04 16:50:02 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-12-04 19:44:11 -0800
commit5f6354eaa517ce5c1e7b7feb224a0324601f796e (patch)
tree883c1b1e389d93ec63d7d035be00fb3c3c16860a /fs/proc
parente06689bf57017ac022ccf0f2a5071f760821ce0f (diff)
downloadlinux-5f6354eaa517ce5c1e7b7feb224a0324601f796e.tar.gz
fs/proc/generic.c: delete useless "len" variable
Pointer to next '/' encodes length of path element and next start
position.  Subtraction and increment are redundant.

Link: http://lkml.kernel.org/r/20191004234521.GA30246@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/proc')
-rw-r--r--fs/proc/generic.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index d4f353187d67..074e9585c699 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -163,7 +163,6 @@ static int __xlate_proc_name(const char *name, struct proc_dir_entry **ret,
 {
 	const char     		*cp = name, *next;
 	struct proc_dir_entry	*de;
-	unsigned int		len;
 
 	de = *ret;
 	if (!de)
@@ -174,13 +173,12 @@ static int __xlate_proc_name(const char *name, struct proc_dir_entry **ret,
 		if (!next)
 			break;
 
-		len = next - cp;
-		de = pde_subdir_find(de, cp, len);
+		de = pde_subdir_find(de, cp, next - cp);
 		if (!de) {
 			WARN(1, "name '%s'\n", name);
 			return -ENOENT;
 		}
-		cp += len + 1;
+		cp = next + 1;
 	}
 	*residual = cp;
 	*ret = de;