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Message-ID: <585ebc14-b3ef-4c09-99a4-b8b855add274@quicinc.com>
Date: Mon, 29 Jan 2024 17:40:12 -0800
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Subject: Re: [PATCH v5 08/11] wifi: ath12k: fix incorrect logic of calculating
 vdev_stats_id
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To: Kang Yang <quic_kangyang@quicinc.com>, <ath12k@lists.infradead.org>
CC: <linux-wireless@vger.kernel.org>
References: <20240129101453.368494-1-quic_kangyang@quicinc.com>
 <20240129101453.368494-9-quic_kangyang@quicinc.com>
From: Jeff Johnson <quic_jjohnson@quicinc.com>
In-Reply-To: <20240129101453.368494-9-quic_kangyang@quicinc.com>
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On 1/29/2024 2:14 AM, Kang Yang wrote:
> During calculate vdev_stats_id, will compare vdev_stats_id with
> ATH12K_INVAL_VDEV_STATS_ID by '<='. If vdev_stats_id is relatively
> small, then assign ATH12K_INVAL_VDEV_STATS_ID to vdev_stats_id.
> 
> This logic is incorrect. Firstly, should use '>=' instead of '<=' to
> check if this u8 variable exceeds the max valid range.
> 
> Secondly, should use the maximum value as comparison value.
> 
> Correct comparison symbols and use the maximum value
> ATH12K_MAX_VDEV_STATS_ID for comparison.
> 
> Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3
> Fixes: d889913205cf ("wifi: ath12k: driver for Qualcomm Wi-Fi 7 devices")
> 
> Signed-off-by: Kang Yang <quic_kangyang@quicinc.com>
Acked-by: Jeff Johnson <quic_jjohnson@quicinc.com>