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

Signed-off-by: NeilBrown <ne...@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);


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