linux-kernel - [PATCH 15/19] staging: lustre: libcfs: Make char * array envp static constant

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Date:   Thu, 17 Nov 2016 14:35:53 -0500
From:   James Simmons <jsimmons@...radead.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        devel@...verdev.osuosl.org,
        Andreas Dilger <andreas.dilger@...el.com>,
        Oleg Drokin <oleg.drokin@...el.com>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Lustre Development List <lustre-devel@...ts.lustre.org>,
        James Simmons <jsimmons@...radead.org>
Subject: [PATCH 15/19] staging: lustre: libcfs: Make char * array envp static constant

The envp char array can be made static constant.

Signed-off-by: James Simmons <jsimmons@...radead.org>
---
 .../staging/lustre/lnet/libcfs/linux/linux-debug.c |   14 ++++++++------
 1 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-debug.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-debug.c
index 8d37938..d8a9894 100644
--- a/drivers/staging/lustre/lnet/libcfs/linux/linux-debug.c
+++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-debug.c
@@ -69,10 +69,11 @@ void libcfs_run_debug_log_upcall(char *file)
 {
 	char *argv[3];
 	int rc;
-	char *envp[] = {
+	static const char * const envp[] = {
 		"HOME=/",
 		"PATH=/sbin:/bin:/usr/sbin:/usr/bin",
-		NULL};
+		NULL
+	};
 
 	argv[0] = lnet_debug_log_upcall;
 
@@ -81,7 +82,7 @@ void libcfs_run_debug_log_upcall(char *file)
 
 	argv[2] = NULL;
 
-	rc = call_usermodehelper(argv[0], argv, envp, 1);
+	rc = call_usermodehelper(argv[0], argv, (char **)envp, 1);
 	if (rc < 0 && rc != -ENOENT) {
 		CERROR("Error %d invoking LNET debug log upcall %s %s; check /sys/kernel/debug/lnet/debug_log_upcall\n",
 		       rc, argv[0], argv[1]);
@@ -95,10 +96,11 @@ void libcfs_run_upcall(char **argv)
 {
 	int rc;
 	int argc;
-	char *envp[] = {
+	static const char * const envp[] = {
 		"HOME=/",
 		"PATH=/sbin:/bin:/usr/sbin:/usr/bin",
-		NULL};
+		NULL
+	};
 
 	argv[0] = lnet_upcall;
 	argc = 1;
@@ -107,7 +109,7 @@ void libcfs_run_upcall(char **argv)
 
 	LASSERT(argc >= 2);
 
-	rc = call_usermodehelper(argv[0], argv, envp, 1);
+	rc = call_usermodehelper(argv[0], argv, (char **)envp, 1);
 	if (rc < 0 && rc != -ENOENT) {
 		CERROR("Error %d invoking LNET upcall %s %s%s%s%s%s%s%s%s; check /sys/kernel/debug/lnet/upcall\n",
 		       rc, argv[0], argv[1],
-- 
1.7.1