git: 6cbf8a04b186 - main - LinuxKPI: 802.11: mark struct ieee80211_ht_cap __packed

The branch main has been updated by bz:

URL: https://cgit.FreeBSD.org/src/commit/?id=6cbf8a04b1864d933506301cabe213a9c918d968

commit 6cbf8a04b1864d933506301cabe213a9c918d968
Author:     Bjoern A. Zeeb <bz@FreeBSD.org>
AuthorDate: 2025-05-26 23:20:20 +0000
Commit:     Bjoern A. Zeeb <bz@FreeBSD.org>
CommitDate: 2025-05-26 23:33:08 +0000

    LinuxKPI: 802.11: mark struct ieee80211_ht_cap __packed
    
    In lkpi_sta_sync_ht_from_ni() we are casting the information element (IE)
    data to this struct as net80211 does not save the mcs/rx_mask.
    Not marking the structs packed results in the mcs information not being
    copied correctly and rx_nss calculations possibly being off.  Even worse,
    at a later stage iwlwifi mvm/rs.c would extract the mcs values from the
    same field to pass to the firmware which will than crash in an assert
    as we would want to do HT with an empty MCS set.
    
    Sponsored by:   The FreeBSD Foundation
    MFC after:      sunrise
    Discovered:     while testing other features on arm64.
---
 sys/compat/linuxkpi/common/include/linux/ieee80211.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/compat/linuxkpi/common/include/linux/ieee80211.h b/sys/compat/linuxkpi/common/include/linux/ieee80211.h
index 396204c3c484..fe2055f05969 100644
--- a/sys/compat/linuxkpi/common/include/linux/ieee80211.h
+++ b/sys/compat/linuxkpi/common/include/linux/ieee80211.h
@@ -304,7 +304,7 @@ struct ieee80211_mcs_info {
 	uint16_t	rx_highest;
 	uint8_t		tx_params;
 	uint8_t		__reserved[3];
-};
+} __packed;
 
 /* 802.11-2020, 9.4.2.55.1 HT Capabilities element structure */
 struct ieee80211_ht_cap {
@@ -314,7 +314,7 @@ struct ieee80211_ht_cap {
 	uint16_t				extended_ht_cap_info;
 	uint32_t				tx_BF_cap_info;
 	uint8_t					antenna_selection_info;
-};
+} __packed;
 
 #define	IEEE80211_HT_MAX_AMPDU_FACTOR		13
 #define	IEEE80211_HE_HT_MAX_AMPDU_FACTOR	16