fs/proc/generic.c: delete useless "len" variable (5f6354ea) · Commits · 戴 / test

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:

fs/proc/generic.c

+2 −4

Original line number	Diff line number	Diff line
		@@ -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;