[PATCH] net/bnxt: add cast to wider type before multiplication

Denis Lyulin lyulin.2003 at mail.ru
Fri Apr 17 07:23:33 CEST 2026


Some static analyzers generate warnings about possible integer
overflow on multiplication. The first parameter of
`rte_eal_alarm_set()` is `uint64_t`, so this commit adds cast
of `uint32_t` values before the multiplication to prevent overflow.
The fix is cosmetic.

Fixes: 9d0cbaecc91a ("net/bnxt: support periodic FW health monitoring")
Cc: kalesh-anakkur.purayil at broadcom.com
Cc: stable at dpdk.org

Signed-off-by: Denis Lyulin <lyulin.2003 at mail.ru>
---
 drivers/net/bnxt/bnxt_ethdev.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index b677f9491d..bdfab3eef2 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -4861,7 +4861,7 @@ static void bnxt_dev_recover(void *arg)
 void bnxt_dev_reset_and_resume(void *arg)
 {
 	struct bnxt *bp = arg;
-	uint32_t us = US_PER_MS * bp->fw_reset_min_msecs;
+	uint64_t us = US_PER_MS * (uint64_t)bp->fw_reset_min_msecs;
 	uint16_t val = 0;
 	int rc;
 
@@ -5008,7 +5008,7 @@ static void bnxt_check_fw_health(void *arg)
 
 	info->last_reset_counter = val;
 
-	rte_eal_alarm_set(US_PER_MS * info->driver_polling_freq,
+	rte_eal_alarm_set(US_PER_MS * (uint64_t)info->driver_polling_freq,
 			  bnxt_check_fw_health, (void *)bp);
 
 	return;
@@ -5030,7 +5030,7 @@ static void bnxt_check_fw_health(void *arg)
 	else
 		wait_msec = info->normal_func_wait_period;
 
-	rte_eal_alarm_set(US_PER_MS * wait_msec,
+	rte_eal_alarm_set(US_PER_MS * (uint64_t)wait_msec,
 			  bnxt_fw_reset_cb, (void *)bp);
 }
 
@@ -5048,7 +5048,7 @@ void bnxt_schedule_fw_health_check(struct bnxt *bp)
 
 	polling_freq = bp->recovery_info->driver_polling_freq;
 
-	rte_eal_alarm_set(US_PER_MS * polling_freq,
+	rte_eal_alarm_set(US_PER_MS * (uint64_t)polling_freq,
 			  bnxt_check_fw_health, (void *)bp);
 	bp->flags |= BNXT_FLAG_FW_HEALTH_CHECK_SCHEDULED;
 
-- 
2.34.1



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