staging: lustre: use strim instead of cfs_trimwhite.

Linux lib provides identical functionality to cfs_trimwhite,
so discard that code and use the standard.
Signed-off-by: NeilBrown <neilb@suse.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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);

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.
  *

drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c

@@ -830,7 +830,7 @@ 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') {
@@ -882,7 +882,7 @@ 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, '[');
@@ -917,7 +917,7 @@ 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;
@@ -957,7 +957,7 @@ cfs_cpt_table_create_pattern(char *pattern)
 			goto failed;
 		}
 
-		str = cfs_trimwhite(bracket + 1);
+		str = strim(bracket + 1);
 	}
 
 	return cptab;

drivers/staging/lustre/lnet/lnet/config.c

@@ -275,7 +275,7 @@ 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,
@@ -298,7 +298,7 @@ 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;
@@ -328,7 +328,7 @@ 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;
@@ -365,7 +365,7 @@ 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;
@@ -374,7 +374,7 @@ lnet_parse_networks(struct list_head *nilist, char *networks)
 			continue;
 		}
 
-		str = cfs_trimwhite(str);
+		str = strim(str);
 		if (*str) {
 			tmp = str;
 			goto failed_syntax;

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);