blktrace: remove unused idx from devpath.

idx isn't used, so remove it.

Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Tao Ma <boyu.mt@taobao.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

diff --git a/blktrace.c b/blktrace.c
index a2bffa2d11e39337ca9873da4f3bb2467ae3ac76..18c51579d2f708f9746945384f9fa20a104cd40d 100644 (file)
--- a/blktrace.c
+++ b/blktrace.c
@@ -93,7 +93,7 @@ struct devpath {
        char *path;                     /* path to device special file */
        char *buts_name;                /* name returned from bt kernel code */
        struct pdc_stats *stats;
-       int fd, idx, ncpus;
+       int fd, ncpus;
        unsigned long long drops;
 
        /*
@@ -1248,7 +1248,7 @@ static int add_devpath(char *path)
        memset(dpp, 0, sizeof(*dpp));
        dpp->path = strdup(path);
        dpp->fd = fd;
-       dpp->idx = ndevs++;
+       ndevs++;
        list_add_tail(&dpp->head, &devpaths);
 
        return 0;