[PATCH ath-next v2 1/2] wifi: ath12k: fix endianness handling while accessing wmi service bit

[Tamizh Chelvam Raja]

Currently there is no endian conversion in ath12k_wmi_tlv_services_parser()
so the service bit parsing will be incorrect on a big endian platform and
to fix this by using appropriate endian conversion.

Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.4.1-00217-QCAHKSWPL_SILICONZ-1
Tested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-3

Fixes: 342527f35338 ("wifi: ath12k: Add support to parse new WMI event for 6 GHz regulatory")
Signed-off-by: Tamizh Chelvam Raja <tamizh.raja at oss.qualcomm.com>
---
 drivers/net/wireless/ath/ath12k/wmi.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c
index ed3c08dbd899..535c9849b98c 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.c
+++ b/drivers/net/wireless/ath/ath12k/wmi.c
@@ -7581,7 +7581,7 @@ static int ath12k_wmi_tlv_services_parser(struct ath12k_base *ab,
 					  void *data)
 {
 	const struct wmi_service_available_event *ev;
-	u32 *wmi_ext2_service_bitmap;
+	__le32 *wmi_ext2_service_bitmap;
 	int i, j;
 	u16 expected_len;
 
@@ -7613,12 +7613,12 @@ static int ath12k_wmi_tlv_services_parser(struct ath12k_base *ab,
 			   ev->wmi_service_segment_bitmap[3]);
 		break;
 	case WMI_TAG_ARRAY_UINT32:
-		wmi_ext2_service_bitmap = (u32 *)ptr;
+		wmi_ext2_service_bitmap = (__le32 *)ptr;
 		for (i = 0, j = WMI_MAX_EXT_SERVICE;
 		     i < WMI_SERVICE_SEGMENT_BM_SIZE32 && j < WMI_MAX_EXT2_SERVICE;
 		     i++) {
 			do {
-				if (wmi_ext2_service_bitmap[i] &
+				if (__le32_to_cpu(wmi_ext2_service_bitmap[i]) &
 				    BIT(j % WMI_AVAIL_SERVICE_BITS_IN_SIZE32))
 					set_bit(j, ab->wmi_ab.svc_map);
 			} while (++j % WMI_AVAIL_SERVICE_BITS_IN_SIZE32);
@@ -7626,8 +7626,10 @@ static int ath12k_wmi_tlv_services_parser(struct ath12k_base *ab,
 
 		ath12k_dbg(ab, ATH12K_DBG_WMI,
 			   "wmi_ext2_service_bitmap 0x%04x 0x%04x 0x%04x 0x%04x",
-			   wmi_ext2_service_bitmap[0], wmi_ext2_service_bitmap[1],
-			   wmi_ext2_service_bitmap[2], wmi_ext2_service_bitmap[3]);
+			   __le32_to_cpu(wmi_ext2_service_bitmap[0]),
+			   __le32_to_cpu(wmi_ext2_service_bitmap[1]),
+			   __le32_to_cpu(wmi_ext2_service_bitmap[2]),
+			   __le32_to_cpu(wmi_ext2_service_bitmap[3]));
 		break;
 	}
 	return 0;
-- 
2.34.1