enic: Fix format truncation warning

With -Wformat-truncation, gcc throws the following warning.

Fix this by increasing the size of devname to accommodate 15 character
netdev interface name and description.

Remove length format precision for %s. We can fit entire name.

Also increment the version.

drivers/net/ethernet/cisco/enic/enic_main.c: In function ‘enic_open’:
drivers/net/ethernet/cisco/enic/enic_main.c:1740:15: warning: ‘%u’ directive output may be truncated writing between 1 and 2 bytes into a region of size between 1 and 12 [-Wformat-truncation=]
     "%.11s-rx-%u", netdev->name, i);
               ^~
drivers/net/ethernet/cisco/enic/enic_main.c:1740:5: note: directive argument in the range [0, 16]
     "%.11s-rx-%u", netdev->name, i);
     ^~~~~~~~~~~~~
drivers/net/ethernet/cisco/enic/enic_main.c:1738:4: note: ‘snprintf’ output between 6 and 18 bytes into a destination of size 16
    snprintf(enic->msix[intr].devname,
    ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     sizeof(enic->msix[intr].devname),
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     "%.11s-rx-%u", netdev->name, i);
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Govindarajulu Varadarajan <gvaradar@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/cisco/enic/enic.h b/drivers/net/ethernet/cisco/enic/enic.h
index 2b23f46..ba032ac 100644 (file)
--- a/drivers/net/ethernet/cisco/enic/enic.h
+++ b/drivers/net/ethernet/cisco/enic/enic.h
@@ -33,7 +33,7 @@
 
 #define DRV_NAME               "enic"
 #define DRV_DESCRIPTION                "Cisco VIC Ethernet NIC Driver"
-#define DRV_VERSION            "2.3.0.31"
+#define DRV_VERSION            "2.3.0.42"
 #define DRV_COPYRIGHT          "Copyright 2008-2013 Cisco Systems, Inc"
 
 #define ENIC_BARS_MAX          6
@@ -47,7 +47,7 @@
 
 struct enic_msix_entry {
        int requested;
-       char devname[IFNAMSIZ];
+       char devname[IFNAMSIZ + 8];
        irqreturn_t (*isr)(int, void *);
        void *devid;
        cpumask_var_t affinity_mask;

diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c
index 6a9c887..d24ee1a 100644 (file)
--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -1737,7 +1737,7 @@ static int enic_request_intr(struct enic *enic)
                        intr = enic_msix_rq_intr(enic, i);
                        snprintf(enic->msix[intr].devname,
                                sizeof(enic->msix[intr].devname),
-                               "%.11s-rx-%u", netdev->name, i);
+                               "%s-rx-%u", netdev->name, i);
                        enic->msix[intr].isr = enic_isr_msix;
                        enic->msix[intr].devid = &enic->napi[i];
                }
@@ -1748,7 +1748,7 @@ static int enic_request_intr(struct enic *enic)
                        intr = enic_msix_wq_intr(enic, i);
                        snprintf(enic->msix[intr].devname,
                                sizeof(enic->msix[intr].devname),
-                               "%.11s-tx-%u", netdev->name, i);
+                               "%s-tx-%u", netdev->name, i);
                        enic->msix[intr].isr = enic_isr_msix;
                        enic->msix[intr].devid = &enic->napi[wq];
                }
@@ -1756,14 +1756,14 @@ static int enic_request_intr(struct enic *enic)
                intr = enic_msix_err_intr(enic);
                snprintf(enic->msix[intr].devname,
                        sizeof(enic->msix[intr].devname),
-                       "%.11s-err", netdev->name);
+                       "%s-err", netdev->name);
                enic->msix[intr].isr = enic_isr_msix_err;
                enic->msix[intr].devid = enic;
 
                intr = enic_msix_notify_intr(enic);
                snprintf(enic->msix[intr].devname,
                        sizeof(enic->msix[intr].devname),
-                       "%.11s-notify", netdev->name);
+                       "%s-notify", netdev->name);
                enic->msix[intr].isr = enic_isr_msix_notify;
                enic->msix[intr].devid = enic;