[PATCH v2 2/2] net: macb: fix format-truncation warning

[Sean Chang <seanwascoding@gmail.com>]

Use a precision specifier in snprintf to ensure the generated
string fits within the ETH_GSTRING_LEN (32 bytes) buffer.

Signed-off-by: Sean Chang <seanwascoding@gmail.com>
---
v2:
- Split the original treewide patch into subsystem-specific commits.
- Added more detailed commit descriptions to satisfy checkpatch.

 drivers/net/ethernet/cadence/macb_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 43cd013bb70e..26f9ccadd9f6 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -3159,8 +3159,8 @@ static void gem_get_ethtool_strings(struct net_device *dev, u32 sset, u8 *p)
 
 		for (q = 0, queue = bp->queues; q < bp->num_queues; ++q, ++queue) {
 			for (i = 0; i < QUEUE_STATS_LEN; i++, p += ETH_GSTRING_LEN) {
-				snprintf(stat_string, ETH_GSTRING_LEN, "q%d_%s",
-						q, queue_statistics[i].stat_string);
+				snprintf(stat_string, ETH_GSTRING_LEN, "q%u_%.19s",
+					 q, queue_statistics[i].stat_string);
 				memcpy(p, stat_string, ETH_GSTRING_LEN);
 			}
 		}
-- 
2.34.1