drivers/md/dm-historical-service-time.c:240:14-16: Unneeded variable: "sz". Return "0" on line 261

drivers/md/dm-historical-service-time.c:240:14-16: Unneeded variable: "sz". Return "0" on line 261

[kernel test robot]

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CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Khazhismel Kumykov <khazhy@google.com>
CC: Mike Snitzer <snitzer@redhat.com>
CC: Gabriel Krisman Bertazi <krisman@collabora.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   dd9fb9bb3340c791a2be106fdc895db75f177343
commit: 2613eab11996c8d1439c2a44fbca52807be7faa6 dm mpath: add Historical Service Time Path Selector
date:   4 months ago
:::::: branch date: 17 hours ago
:::::: commit date: 4 months ago
config: arm64-randconfig-c004-20200904 (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Julia Lawall <julia.lawall@lip6.fr>


coccinelle warnings: (new ones prefixed by >>)

>> drivers/md/dm-historical-service-time.c:240:14-16: Unneeded variable: "sz". Return "0" on line 261

Please review and possibly fold the followup patch.

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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[PATCH] dm mpath: fix returnvar.cocci warnings

[kernel test robot]

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CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Khazhismel Kumykov <khazhy@google.com>
CC: Mike Snitzer <snitzer@redhat.com>
CC: Gabriel Krisman Bertazi <krisman@collabora.com>
CC: Alasdair Kergon <agk@redhat.com>
CC: dm-devel(a)redhat.com
CC: linux-kernel(a)vger.kernel.org

From: kernel test robot <lkp@intel.com>

drivers/md/dm-historical-service-time.c:240:14-16: Unneeded variable: "sz". Return "0" on line 261


 Remove unneeded variable used to store return value.

Generated by: scripts/coccinelle/misc/returnvar.cocci

Fixes: 2613eab11996 ("dm mpath: add Historical Service Time Path Selector")
CC: Khazhismel Kumykov <khazhy@google.com>
Signed-off-by: kernel test robot <lkp@intel.com>
---

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   dd9fb9bb3340c791a2be106fdc895db75f177343
commit: 2613eab11996c8d1439c2a44fbca52807be7faa6 dm mpath: add Historical Service Time Path Selector
:::::: branch date: 17 hours ago
:::::: commit date: 4 months ago

Please take the patch only if it's a positive warning. Thanks!

 dm-historical-service-time.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/drivers/md/dm-historical-service-time.c
+++ b/drivers/md/dm-historical-service-time.c
@@ -237,7 +237,6 @@ static void hst_destroy(struct path_sele
 static int hst_status(struct path_selector *ps, struct dm_path *path,
 		     status_type_t type, char *result, unsigned int maxlen)
 {
-	unsigned int sz = 0;
 	struct path_info *pi;
 
 	if (!path) {
@@ -258,7 +257,7 @@ static int hst_status(struct path_select
 		}
 	}
 
-	return sz;
+	return 0;
 }
 
 static int hst_add_path(struct path_selector *ps, struct dm_path *path,

drivers/md/dm-historical-service-time.c:240:14-16: Unneeded variable: "sz". Return "0" on line 261

[kernel test robot]

[-- Attachment #1: Type: text/plain, Size: 1128 bytes --]

CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: Khazhismel Kumykov <khazhy@google.com>
CC: Mike Snitzer <snitzer@redhat.com>
CC: Gabriel Krisman Bertazi <krisman@collabora.com>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   37187df45af7d28d27b5c130c23f407ca9dbefa2
commit: 2613eab11996c8d1439c2a44fbca52807be7faa6 dm mpath: add Historical Service Time Path Selector
date:   5 months ago
:::::: branch date: 4 hours ago
:::::: commit date: 5 months ago
config: x86_64-randconfig-c002-20201014 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Julia Lawall <julia.lawall@lip6.fr>


"coccinelle warnings: (new ones prefixed by >>)"
>> drivers/md/dm-historical-service-time.c:240:14-16: Unneeded variable: "sz". Return "0" on line 261

Please review and possibly fold the followup patch.

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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