* [PATCH 21.11] net/cnxk: fix configuring large Rx/Tx queues
@ 2022-11-29 9:04 Hanumanth Pothula
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From: Hanumanth Pothula @ 2022-11-29 9:04 UTC (permalink / raw)
To: stable; +Cc: jerinj, ndabilpuram, Hanumanth Pothula
[upstream commit 5a0f64d84bf939aba37527d511fde45e1a9f6f9e]
While configuring NIX, local variables 'nb_rxq' and 'nb_txq'
are declared as 8bit variables, leading to an integer overflow
when an application sends Rxq/Txq value greater than 255.
Hence, declare local variables, 'nb_rxq' and 'nb_txq' as 16bit
variable.
Fixes: b75e0aca84b0 ("net/cnxk: add device configuration operation")
Signed-off-by: Hanumanth Pothula <hpothula@marvell.com>
---
drivers/net/cnxk/cnxk_ethdev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/cnxk/cnxk_ethdev.c b/drivers/net/cnxk/cnxk_ethdev.c
index 8ba35ac36f..67a8dec75b 100644
--- a/drivers/net/cnxk/cnxk_ethdev.c
+++ b/drivers/net/cnxk/cnxk_ethdev.c
@@ -1034,7 +1034,7 @@ cnxk_nix_configure(struct rte_eth_dev *eth_dev)
struct roc_nix_fc_cfg fc_cfg = {0};
struct roc_nix *nix = &dev->nix;
struct rte_ether_addr *ea;
- uint8_t nb_rxq, nb_txq;
+ uint16_t nb_rxq, nb_txq;
uint64_t rx_cfg;
void *qs;
int rc;
--
2.25.1
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