linux-kernel - [PATCH 4.19 075/220] tools: PCI: Fix compilation warnings

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Message-Id: <20191122100917.694687117@linuxfoundation.org>
Date:   Fri, 22 Nov 2019 11:27:20 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Kishon Vijay Abraham I <kishon@...com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.19 075/220] tools: PCI: Fix compilation warnings

From: Gustavo Pimentel <gustavo.pimentel@...opsys.com>

[ Upstream commit fef31ecaaf2c5c54db85b35e893bf8abec96b93f ]

Current compilation produces the following warnings:

tools/pci/pcitest.c: In function 'run_test':
tools/pci/pcitest.c:56:9: warning: unused variable 'time'
[-Wunused-variable]
  double time;
         ^~~~
tools/pci/pcitest.c:55:25: warning: unused variable 'end'
[-Wunused-variable]
  struct timespec start, end;
                         ^~~
tools/pci/pcitest.c:55:18: warning: unused variable 'start'
[-Wunused-variable]
  struct timespec start, end;
                  ^~~~~
tools/pci/pcitest.c:146:1: warning: control reaches end of non-void
function [-Wreturn-type]
 }
 ^

Fix them:
 - remove unused variables
 - change function return from int to void, since it's not used

Signed-off-by: Gustavo Pimentel <gustavo.pimentel@...opsys.com>
[lorenzo.pieralisi@....com: rewrote the commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@....com>
Reviewed-by: Kishon Vijay Abraham I <kishon@...com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/pci/pcitest.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/tools/pci/pcitest.c b/tools/pci/pcitest.c
index af146bb03b4df..ec4d51f3308b8 100644
--- a/tools/pci/pcitest.c
+++ b/tools/pci/pcitest.c
@@ -23,7 +23,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/ioctl.h>
-#include <time.h>
 #include <unistd.h>
 
 #include <linux/pcitest.h>
@@ -48,17 +47,15 @@ struct pci_test {
 	unsigned long	size;
 };
 
-static int run_test(struct pci_test *test)
+static void run_test(struct pci_test *test)
 {
 	long ret;
 	int fd;
-	struct timespec start, end;
-	double time;
 
 	fd = open(test->device, O_RDWR);
 	if (fd < 0) {
 		perror("can't open PCI Endpoint Test device");
-		return fd;
+		return;
 	}
 
 	if (test->barnum >= 0 && test->barnum <= 5) {
-- 
2.20.1