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From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
To: Kalle Valo <kvalo@codeaurora.org>,
	"David S. Miller" <davem@davemloft.net>
Cc: ath10k@lists.infradead.org, linux-wireless@vger.kernel.org,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	"Gustavo A. R. Silva" <gustavo@embeddedor.com>
Subject: [PATCH] ath10k: htt_rx: Fix signedness bug in ath10k_update_per_peer_tx_stats
Date: Fri, 5 Oct 2018 20:42:45 +0200	[thread overview]
Message-ID: <20181005184245.GA11700@embeddedor.com> (raw)

Currently, the error handling for the call to function
ath10k_get_legacy_rate_idx() doesn't work because
*rate_idx* is of type u8 (8 bits, unsigned), which
makes it impossible for it to hold a value less
than 0.

Fix this by changing the type of variable *rate_idx*
to s8 (8 bits, signed).

Addresses-Coverity-ID: 1473914 ("Unsigned compared against 0")
Fixes: 0189dbd71cbd ("ath10k: get the legacy rate index to update the txrate table")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
 drivers/net/wireless/ath/ath10k/htt_rx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index f240525..edd0e74 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -2753,7 +2753,8 @@ ath10k_update_per_peer_tx_stats(struct ath10k *ar,
 				struct ath10k_per_peer_tx_stats *peer_stats)
 {
 	struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
-	u8 rate = 0, rate_idx = 0, sgi;
+	u8 rate = 0, sgi;
+	s8 rate_idx = 0;
 	struct rate_info txrate;
 
 	lockdep_assert_held(&ar->data_lock);
-- 
2.7.4


WARNING: multiple messages have this Message-ID (diff)
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
To: Kalle Valo <kvalo@codeaurora.org>,
	"David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org, linux-wireless@vger.kernel.org,
	linux-kernel@vger.kernel.org, ath10k@lists.infradead.org,
	"Gustavo A. R. Silva" <gustavo@embeddedor.com>
Subject: [PATCH] ath10k: htt_rx: Fix signedness bug in ath10k_update_per_peer_tx_stats
Date: Fri, 5 Oct 2018 20:42:45 +0200	[thread overview]
Message-ID: <20181005184245.GA11700@embeddedor.com> (raw)

Currently, the error handling for the call to function
ath10k_get_legacy_rate_idx() doesn't work because
*rate_idx* is of type u8 (8 bits, unsigned), which
makes it impossible for it to hold a value less
than 0.

Fix this by changing the type of variable *rate_idx*
to s8 (8 bits, signed).

Addresses-Coverity-ID: 1473914 ("Unsigned compared against 0")
Fixes: 0189dbd71cbd ("ath10k: get the legacy rate index to update the txrate table")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
 drivers/net/wireless/ath/ath10k/htt_rx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index f240525..edd0e74 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -2753,7 +2753,8 @@ ath10k_update_per_peer_tx_stats(struct ath10k *ar,
 				struct ath10k_per_peer_tx_stats *peer_stats)
 {
 	struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
-	u8 rate = 0, rate_idx = 0, sgi;
+	u8 rate = 0, sgi;
+	s8 rate_idx = 0;
 	struct rate_info txrate;
 
 	lockdep_assert_held(&ar->data_lock);
-- 
2.7.4

WARNING: multiple messages have this Message-ID (diff)
From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
To: Kalle Valo <kvalo@codeaurora.org>,
	"David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org, linux-wireless@vger.kernel.org,
	linux-kernel@vger.kernel.org, ath10k@lists.infradead.org,
	"Gustavo A. R. Silva" <gustavo@embeddedor.com>
Subject: [PATCH] ath10k: htt_rx: Fix signedness bug in ath10k_update_per_peer_tx_stats
Date: Fri, 5 Oct 2018 20:42:45 +0200	[thread overview]
Message-ID: <20181005184245.GA11700@embeddedor.com> (raw)

Currently, the error handling for the call to function
ath10k_get_legacy_rate_idx() doesn't work because
*rate_idx* is of type u8 (8 bits, unsigned), which
makes it impossible for it to hold a value less
than 0.

Fix this by changing the type of variable *rate_idx*
to s8 (8 bits, signed).

Addresses-Coverity-ID: 1473914 ("Unsigned compared against 0")
Fixes: 0189dbd71cbd ("ath10k: get the legacy rate index to update the txrate table")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
 drivers/net/wireless/ath/ath10k/htt_rx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index f240525..edd0e74 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -2753,7 +2753,8 @@ ath10k_update_per_peer_tx_stats(struct ath10k *ar,
 				struct ath10k_per_peer_tx_stats *peer_stats)
 {
 	struct ath10k_sta *arsta = (struct ath10k_sta *)sta->drv_priv;
-	u8 rate = 0, rate_idx = 0, sgi;
+	u8 rate = 0, sgi;
+	s8 rate_idx = 0;
 	struct rate_info txrate;
 
 	lockdep_assert_held(&ar->data_lock);
-- 
2.7.4


_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k

             reply	other threads:[~2018-10-05 19:03 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-05 18:42 Gustavo A. R. Silva [this message]
2018-10-05 18:42 ` [PATCH] ath10k: htt_rx: Fix signedness bug in ath10k_update_per_peer_tx_stats Gustavo A. R. Silva
2018-10-05 18:42 ` Gustavo A. R. Silva
2018-10-05 19:09 ` Ben Greear
2018-10-05 19:09   ` Ben Greear
2018-10-05 19:14   ` Gustavo A. R. Silva
2018-10-05 19:14     ` Gustavo A. R. Silva
2018-10-05 19:15     ` Gustavo A. R. Silva
2018-10-05 19:15       ` Gustavo A. R. Silva
2018-10-05 19:15       ` Gustavo A. R. Silva
2018-10-08  6:38       ` Anilkumar Kolli
2018-10-08  6:38         ` Anilkumar Kolli
2018-10-09 19:19         ` Gustavo A. R. Silva
2018-10-09 19:19           ` Gustavo A. R. Silva
2018-10-13 17:23 ` Kalle Valo
2018-10-13 17:23   ` Kalle Valo
2018-10-13 17:23 ` Kalle Valo
     [not found] ` <20181013172330.1CC8E60BFE@smtp.codeaurora.org>
2018-10-13 18:26   ` Gustavo A. R. Silva
2018-10-13 18:26     ` Gustavo A. R. Silva

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