[PATCH net-next] liquidio: fix format truncation warning reported by gcc 7.1.1

[Felix Manlunas]

From: Satanand Burla <satananda.bu...@cavium.com>

gcc 7.1.1 with -Wformat-truncation reports these warnings:

drivers/net/ethernet/cavium/liquidio/lio_core.c: In function 
`octeon_setup_interrupt':
drivers/net/ethernet/cavium/liquidio/lio_core.c:1003:41: warning: `%u' 
directive output may be truncated writing between 1 and 10 bytes into a region 
of size between 0 and 13 [-Wformat-truncation=]
       INTRNAMSIZ, "LiquidIO%u-pf%u-rxtx-%u",
                                         ^~
drivers/net/ethernet/cavium/liquidio/lio_core.c:1003:19: note: directive 
argument in the range [0, 2147483647]
       INTRNAMSIZ, "LiquidIO%u-pf%u-rxtx-%u",
                   ^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/cavium/liquidio/lio_core.c:1002:5: note: `snprintf' output 
between 21 and 43 bytes into a destination of size 32
     snprintf(&queue_irq_names[IRQ_NAME_OFF(i)],
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
       INTRNAMSIZ, "LiquidIO%u-pf%u-rxtx-%u",
       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
       oct->octeon_id, oct->pf_num, i);
       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/cavium/liquidio/lio_core.c:1008:41: warning: `%u' 
directive output may be truncated writing between 1 and 10 bytes into a region 
of size between 0 and 13 [-Wformat-truncation=]
       INTRNAMSIZ, "LiquidIO%u-vf%u-rxtx-%u",
                                         ^~
drivers/net/ethernet/cavium/liquidio/lio_core.c:1008:19: note: directive 
argument in the range [0, 2147483647]
       INTRNAMSIZ, "LiquidIO%u-vf%u-rxtx-%u",
                   ^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/cavium/liquidio/lio_core.c:1007:5: note: `snprintf' output 
between 21 and 43 bytes into a destination of size 32
     snprintf(&queue_irq_names[IRQ_NAME_OFF(i)],
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
       INTRNAMSIZ, "LiquidIO%u-vf%u-rxtx-%u",
       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
       oct->octeon_id, oct->vf_num, i);
       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Fix them by changing the type of the "i" local variable from int to short.

Signed-off-by: Satanand Burla <satananda.bu...@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlu...@cavium.com>
---
 drivers/net/ethernet/cavium/liquidio/lio_core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/cavium/liquidio/lio_core.c 
b/drivers/net/ethernet/cavium/liquidio/lio_core.c
index 23f6b60..55c5d44 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_core.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_core.c
@@ -899,11 +899,12 @@ int octeon_setup_interrupt(struct octeon_device *oct, u32 
num_ioqs)
 {
        struct msix_entry *msix_entries;
        char *queue_irq_names = NULL;
-       int i, num_interrupts = 0;
+       int num_interrupts = 0;
        int num_alloc_ioq_vectors;
        char *aux_irq_name = NULL;
        int num_ioq_vectors;
        int irqret, err;
+       short i;
 
        oct->num_msix_irqs = num_ioqs;
        if (oct->msix_on) {