[lustre-devel] [PATCH 1/2] staging: lustre: use strim instead of cfs_trimwhite.

[NeilBrown]

Linux lib provides identical functionality to cfs_trimwhite,
so discard that code and use the standard.

Signed-off-by: NeilBrown <neilb at suse.com>
---
 .../lustre/include/linux/libcfs/libcfs_string.h    |    1 -
 drivers/staging/lustre/lnet/libcfs/libcfs_string.c |   20 --------------------
 .../staging/lustre/lnet/libcfs/linux/linux-cpu.c   |    8 ++++----
 drivers/staging/lustre/lnet/lnet/config.c          |   10 +++++-----
 drivers/staging/lustre/lnet/lnet/router_proc.c     |    2 +-
 5 files changed, 10 insertions(+), 31 deletions(-)

diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_string.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_string.h
index c1375733ff31..66463477074a 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_string.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_string.h
@@ -73,7 +73,6 @@ struct cfs_expr_list {
 	struct list_head	el_exprs;
 };
 
-char *cfs_trimwhite(char *str);
 int cfs_gettok(struct cfs_lstr *next, char delim, struct cfs_lstr *res);
 int cfs_str2num_check(char *str, int nob, unsigned int *num,
 		      unsigned int min, unsigned int max);
diff --git a/drivers/staging/lustre/lnet/libcfs/libcfs_string.c b/drivers/staging/lustre/lnet/libcfs/libcfs_string.c
index b1d8faa3f7aa..442889a3d729 100644
--- a/drivers/staging/lustre/lnet/libcfs/libcfs_string.c
+++ b/drivers/staging/lustre/lnet/libcfs/libcfs_string.c
@@ -137,26 +137,6 @@ char *cfs_firststr(char *str, size_t size)
 }
 EXPORT_SYMBOL(cfs_firststr);
 
-char *
-cfs_trimwhite(char *str)
-{
-	char *end;
-
-	while (isspace(*str))
-		str++;
-
-	end = str + strlen(str);
-	while (end > str) {
-		if (!isspace(end[-1]))
-			break;
-		end--;
-	}
-
-	*end = 0;
-	return str;
-}
-EXPORT_SYMBOL(cfs_trimwhite);
-
 /**
  * Extracts tokens from strings.
  *
diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c
index e9156bf05ed4..d30650f8dcb4 100644
--- a/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c
+++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c
@@ -818,7 +818,7 @@ cfs_cpt_table_create_pattern(char *pattern)
 	int c;
 	int i;
 
-	str = cfs_trimwhite(pattern);
+	str = strim(pattern);
 	if (*str == 'n' || *str == 'N') {
 		pattern = str + 1;
 		if (*pattern != '\0') {
@@ -870,7 +870,7 @@ cfs_cpt_table_create_pattern(char *pattern)
 
 	high = node ? MAX_NUMNODES - 1 : nr_cpu_ids - 1;
 
-	for (str = cfs_trimwhite(pattern), c = 0;; c++) {
+	for (str = strim(pattern), c = 0;; c++) {
 		struct cfs_range_expr *range;
 		struct cfs_expr_list *el;
 		char *bracket = strchr(str, '[');
@@ -905,7 +905,7 @@ cfs_cpt_table_create_pattern(char *pattern)
 			goto failed;
 		}
 
-		str = cfs_trimwhite(str + n);
+		str = strim(str + n);
 		if (str != bracket) {
 			CERROR("Invalid pattern %s\n", str);
 			goto failed;
@@ -945,7 +945,7 @@ cfs_cpt_table_create_pattern(char *pattern)
 			goto failed;
 		}
 
-		str = cfs_trimwhite(bracket + 1);
+		str = strim(bracket + 1);
 	}
 
 	return cptab;
diff --git a/drivers/staging/lustre/lnet/lnet/config.c b/drivers/staging/lustre/lnet/lnet/config.c
index fd53c74766a7..44eeca63f458 100644
--- a/drivers/staging/lustre/lnet/lnet/config.c
+++ b/drivers/staging/lustre/lnet/lnet/config.c
@@ -269,7 +269,7 @@ lnet_parse_networks(struct list_head *nilist, char *networks)
 
 			if (comma)
 				*comma++ = 0;
-			net = libcfs_str2net(cfs_trimwhite(str));
+			net = libcfs_str2net(strim(str));
 
 			if (net == LNET_NIDNET(LNET_NID_ANY)) {
 				LCONSOLE_ERROR_MSG(0x113,
@@ -292,7 +292,7 @@ lnet_parse_networks(struct list_head *nilist, char *networks)
 		}
 
 		*bracket = 0;
-		net = libcfs_str2net(cfs_trimwhite(str));
+		net = libcfs_str2net(strim(str));
 		if (net == LNET_NIDNET(LNET_NID_ANY)) {
 			tmp = str;
 			goto failed_syntax;
@@ -322,7 +322,7 @@ lnet_parse_networks(struct list_head *nilist, char *networks)
 			if (comma)
 				*comma++ = 0;
 
-			iface = cfs_trimwhite(iface);
+			iface = strim(iface);
 			if (!*iface) {
 				tmp = iface;
 				goto failed_syntax;
@@ -356,7 +356,7 @@ lnet_parse_networks(struct list_head *nilist, char *networks)
 		comma = strchr(bracket + 1, ',');
 		if (comma) {
 			*comma = 0;
-			str = cfs_trimwhite(str);
+			str = strim(str);
 			if (*str) {
 				tmp = str;
 				goto failed_syntax;
@@ -365,7 +365,7 @@ lnet_parse_networks(struct list_head *nilist, char *networks)
 			continue;
 		}
 
-		str = cfs_trimwhite(str);
+		str = strim(str);
 		if (*str) {
 			tmp = str;
 			goto failed_syntax;
diff --git a/drivers/staging/lustre/lnet/lnet/router_proc.c b/drivers/staging/lustre/lnet/lnet/router_proc.c
index 8d6d6b4d6619..1a71ffebc889 100644
--- a/drivers/staging/lustre/lnet/lnet/router_proc.c
+++ b/drivers/staging/lustre/lnet/lnet/router_proc.c
@@ -829,7 +829,7 @@ static int __proc_lnet_portal_rotor(void *data, int write,
 	if (rc < 0)
 		goto out;
 
-	tmp = cfs_trimwhite(buf);
+	tmp = strim(buf);
 
 	rc = -EINVAL;
 	lnet_res_lock(0);