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From: Kalle Valo <kvalo@codeaurora.org>
To: linux-wireless@vger.kernel.org
Cc: ath11k@lists.infradead.org
Subject: [PATCH 03/10] ath11k: fix wmi service ready ext tlv parsing
Date: Tue, 26 Nov 2019 11:04:48 +0000	[thread overview]
Message-ID: <0101016ea7629e86-f417ea8d-3ed3-4794-aa02-5c21b621e022-000000@us-west-2.amazonses.com> (raw)
In-Reply-To: <1574766279-13105-1-git-send-email-kvalo@codeaurora.org>

From: Anilkumar Kolli <akolli@codeaurora.org>

The current ath11k driver failed to parse
wmi_tlv_svc_rdy_ext_parse if there is change in
wmi_mac_phy_capabilities length with below error.

ath11k c000000.wifi1: failed to extract mac caps, idx :0
ath11k c000000.wifi1: failed to parse tlv -22

This is needed to get firmware version
WLAN.HK.2.0.0.1-00240-QCAHKSWPL_SILICONZ-1 working.

Signed-off-by: Anilkumar Kolli <akolli@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/ath/ath11k/wmi.c | 14 +++++++++++---
 drivers/net/wireless/ath/ath11k/wmi.h |  1 -
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index 2c3c973f5f7c..ccebf7ce420a 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -310,7 +310,7 @@ ath11k_pull_mac_phy_cap_svc_ready_ext(struct ath11k_pdev_wmi *wmi_handle,
 	if (phy_id >= hal_reg_caps->num_phy)
 		return -EINVAL;
 
-	mac_phy_caps = &wmi_mac_phy_caps[phy_idx];
+	mac_phy_caps = wmi_mac_phy_caps + phy_idx;
 
 	pdev->pdev_id = mac_phy_caps->pdev_id;
 	pdev_cap->supported_bands = mac_phy_caps->supported_bands;
@@ -2959,6 +2959,15 @@ static int ath11k_wmi_tlv_mac_phy_caps_parse(struct ath11k_base *soc,
 	if (svc_rdy_ext->n_mac_phy_caps >= svc_rdy_ext->tot_phy_id)
 		return -ENOBUFS;
 
+	len = min_t(u16, len, sizeof(struct wmi_mac_phy_capabilities));
+	if (!svc_rdy_ext->n_mac_phy_caps) {
+		svc_rdy_ext->mac_phy_caps = kzalloc((svc_rdy_ext->tot_phy_id) * len,
+						    GFP_ATOMIC);
+		if (!svc_rdy_ext->mac_phy_caps)
+			return -ENOMEM;
+	}
+
+	memcpy(svc_rdy_ext->mac_phy_caps + svc_rdy_ext->n_mac_phy_caps, ptr, len);
 	svc_rdy_ext->n_mac_phy_caps++;
 	return 0;
 }
@@ -3092,8 +3101,6 @@ static int ath11k_wmi_tlv_svc_rdy_ext_parse(struct ath11k_base *ab,
 			svc_rdy_ext->hw_mode_done = true;
 		} else if (!svc_rdy_ext->mac_phy_done) {
 			svc_rdy_ext->n_mac_phy_caps = 0;
-			svc_rdy_ext->mac_phy_caps =
-					(struct wmi_mac_phy_capabilities *)ptr;
 			ret = ath11k_wmi_tlv_iter(ab, ptr, len,
 						  ath11k_wmi_tlv_mac_phy_caps_parse,
 						  svc_rdy_ext);
@@ -3134,6 +3141,7 @@ static int ath11k_service_ready_ext_event(struct ath11k_base *ab,
 		return ret;
 	}
 
+	kfree(svc_rdy_ext.mac_phy_caps);
 	return 0;
 }
 
diff --git a/drivers/net/wireless/ath/ath11k/wmi.h b/drivers/net/wireless/ath/ath11k/wmi.h
index 7d5690c65279..6a0468094694 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.h
+++ b/drivers/net/wireless/ath/ath11k/wmi.h
@@ -2276,7 +2276,6 @@ struct wmi_hw_mode_capabilities {
 #define WMI_MAX_HECAP_PHY_SIZE                 (3)
 
 struct wmi_mac_phy_capabilities {
-	u32 tlv_header;
 	u32 hw_mode_id;
 	u32 pdev_id;
 	u32 phy_id;
-- 
2.7.4


  parent reply	other threads:[~2019-11-26 11:05 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1574766279-13105-1-git-send-email-kvalo@codeaurora.org>
2019-11-26 11:04 ` [PATCH 01/10] ath11k: Fix htt stats sounding info and pdev cca stats Kalle Valo
2019-11-29  7:39   ` Kalle Valo
2019-11-26 11:04 ` [PATCH 02/10] ath11k: fix resource leak in ath11k_mac_sta_state Kalle Valo
2019-11-26 11:04 ` Kalle Valo [this message]
2019-11-26 11:04 ` [PATCH 04/10] ath11k: update tcl cmd descriptor parameters for STA mode Kalle Valo
2019-11-26 11:04 ` [PATCH 05/10] ath11k: optimize RX path latency Kalle Valo
2019-11-26 11:04 ` [PATCH 06/10] ath11k: avoid WMM param truncation Kalle Valo
2019-11-26 11:04 ` [PATCH 07/10] ath11k: remove unused tx ring counters Kalle Valo
2019-11-26 11:04 ` [PATCH 08/10] ath11k: Fix skb_panic observed during msdu coalescing Kalle Valo
2019-11-26 11:04 ` [PATCH 10/10] ath11k: Fix target crash due to WBM_IDLE_LINK ring desc shortage Kalle Valo
2019-11-26 11:04 ` [PATCH 09/10] ath11k: Fixing TLV length issue in peer pktlog WMI command Kalle Valo

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