eal: fix tail blank check in --lcores argument

the tail blank after a group of lcore or cpu set
will make check of its end character fail.
for example: --lcores '(0-3)@(0-3)   ,(4-5)@(4-5)',
the next character after cpu set (0-3) is not ','
or '\0', which fail the check in eal_parse_lcores( ).

Fixes: 53e54bf81700 ("eal: new option --lcores for cpu assignment")

Signed-off-by: Wei Dai <wei.dai@intel.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>

diff --git a/lib/librte_eal/common/eal_common_options.c b/lib/librte_eal/common/eal_common_options.c
index 217d08b..1a1bab3 100644 (file)
--- a/lib/librte_eal/common/eal_common_options.c
+++ b/lib/librte_eal/common/eal_common_options.c
@@ -530,6 +530,13 @@ eal_parse_set(const char *input, uint16_t set[], unsigned num)
                str = end + 1;
        } while (*end != '\0' && *end != ')');
 
+       /*
+        * to avoid failure that tail blank makes end character check fail
+        * in eal_parse_lcores( )
+        */
+       while (isblank(*str))
+               str++;
+
        return str - input;
 }