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From: Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>
To: shuah@kernel.org, skhan@linuxfoundation.org,
	linux-kselftest@vger.kernel.org
Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
	tony.luck@intel.com, reinette.chatre@intel.com,
	babu.moger@amd.com, james.morse@arm.com,
	ravi.v.shankar@intel.com, fenghua.yu@intel.com, x86@kernel.org,
	linux-kernel@vger.kernel, dan.carpenter@oracle.com,
	dcb314@hotmail.com,
	Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>
Subject: [PATCH V2 15/19] selftests/resctrl: Change return type of umount_resctrlfs() to void
Date: Mon, 18 May 2020 15:08:35 -0700
Message-ID: <3c00e744acbfa67a1988638f1718cd67382a6f59.1589835155.git.sai.praneeth.prakhya@intel.com> (raw)
In-Reply-To: <cover.1589835155.git.sai.praneeth.prakhya@intel.com>

umount_resctrlfs() is used only during tear down path and there is nothing
much to do if unmount of resctrl file system fails, so, all the callers of
this function are not checking for the return value. Hence, change the
return type of this function from int to void.

Signed-off-by: Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>
---
 tools/testing/selftests/resctrl/resctrl.h   | 2 +-
 tools/testing/selftests/resctrl/resctrlfs.c | 9 ++-------
 2 files changed, 3 insertions(+), 8 deletions(-)

diff --git a/tools/testing/selftests/resctrl/resctrl.h b/tools/testing/selftests/resctrl/resctrl.h
index 65ca24bf3eac..23b691001f0b 100644
--- a/tools/testing/selftests/resctrl/resctrl.h
+++ b/tools/testing/selftests/resctrl/resctrl.h
@@ -76,7 +76,7 @@ bool check_resctrlfs_support(void);
 int filter_dmesg(void);
 int remount_resctrlfs(bool mum_resctrlfs);
 int get_resource_id(int cpu_no, int *resource_id);
-int umount_resctrlfs(void);
+void umount_resctrlfs(void);
 int validate_bw_report_request(char *bw_report);
 bool validate_resctrl_feature_request(const char *resctrl_val);
 char *fgrep(FILE *inf, const char *str);
diff --git a/tools/testing/selftests/resctrl/resctrlfs.c b/tools/testing/selftests/resctrl/resctrlfs.c
index 05956319d9ce..83cd3b026c52 100644
--- a/tools/testing/selftests/resctrl/resctrlfs.c
+++ b/tools/testing/selftests/resctrl/resctrlfs.c
@@ -90,15 +90,10 @@ int remount_resctrlfs(bool mum_resctrlfs)
 	return ret;
 }
 
-int umount_resctrlfs(void)
+void umount_resctrlfs(void)
 {
-	if (umount(RESCTRL_PATH)) {
+	if (umount(RESCTRL_PATH))
 		perror("# Unable to umount resctrl");
-
-		return errno;
-	}
-
-	return 0;
 }
 
 /*
-- 
2.19.1


  parent reply index

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-18 22:08 [PATCH V2 00/19] Miscellaneous fixes for resctrl selftests Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 01/19] selftests/resctrl: Rename CQM test as CMT test Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 02/19] selftests/resctrl: Fix typo Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 03/19] selftests/resctrl: Fix typo in help text Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 04/19] selftests/resctrl: Declare global variables as extern Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 05/19] selftests/resctrl: Return if resctrl file system is not supported Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 06/19] selftests/resctrl: Check for resctrl mount point only if resctrl FS is supported Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 07/19] selftests/resctrl: Use resctrl/info for feature detection Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 08/19] selftests/resctrl: Ensure sibling CPU is not same as original CPU Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 09/19] selftests/resctrl: Fix missing options "-n" and "-p" Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 10/19] selftests/resctrl: Fix MBA/MBM results reporting format Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 11/19] selftests/resctrl: Abort running tests if not root user Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 12/19] selftests/resctrl: Enable gcc checks to detect buffer overflows Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 13/19] selftests/resctrl: Dynamically select buffer size for CAT test Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 14/19] selftests/resctrl: Skip the test if requested resctrl feature is not supported Sai Praneeth Prakhya
2020-05-20 23:46   ` Reinette Chatre
2020-05-21 17:12     ` Prakhya, Sai Praneeth
2020-05-18 22:08 ` Sai Praneeth Prakhya [this message]
2020-05-20 23:52   ` [PATCH V2 15/19] selftests/resctrl: Change return type of umount_resctrlfs() to void Reinette Chatre
2020-05-21 17:19     ` Prakhya, Sai Praneeth
2020-05-21 18:15       ` Reinette Chatre
2020-05-18 22:08 ` [PATCH V2 16/19] selftests/resctrl: Umount resctrl FS only if mounted Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 17/19] selftests/resctrl: Unmount resctrl FS after running all tests Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 18/19] selftests/resctrl: Fix incorrect parsing of iMC counters Sai Praneeth Prakhya
2020-05-18 22:08 ` [PATCH V2 19/19] selftests/resctrl: Fix checking for < 0 for unsigned values Sai Praneeth Prakhya
2020-05-21 16:12 ` [PATCH V2 00/19] Miscellaneous fixes for resctrl selftests Reinette Chatre
2020-05-21 17:28   ` Prakhya, Sai Praneeth

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