lwn.git/drivers/net/wireless/ath/ath6kl, branch docs-fixes

wifi: ath6kl: rename disconnect callback

2026-03-10T15:27:55+00:00

Rename the disconnect callback so that it reflects the callback name for consistency with the rest of the kernel (e.g. makes it easier to grep for). Signed-off-by: Johan Hovold Link: https://patch.msgid.link/20260306085144.12064-3-johan@kernel.org Signed-off-by: Jeff Johnson

wifi: ath6kl: drop redundant device reference

2026-03-10T15:27:55+00:00

Driver core holds a reference to the USB interface and its parent USB device while the interface is bound to a driver and there is no need to take additional references unless the structures are needed after disconnect. Drop the redundant device reference to reduce cargo culting, make it easier to spot drivers where an extra reference is needed, and reduce the risk of memory leaks when drivers fail to release it. Signed-off-by: Johan Hovold Link: https://patch.msgid.link/20260306085144.12064-2-johan@kernel.org Signed-off-by: Jeff Johnson

wifi: ath6kl: wmi: Avoid -Wflex-array-member-not-at-end warning

2026-03-06T20:23:16+00:00

-Wflex-array-member-not-at-end was introduced in GCC-14, and we are getting ready to enable it, globally. Remove unused structures bss_bias_info and bss_bias, and member bss in struct roam_ctrl_cmd. After these changes, the size of struct roam_ctrl_cmd, along with its member's offsets remain the same, hence the memory layout doesn't change: Before changes: struct roam_ctrl_cmd { union { u8 bssid[6]; /* 0 6 */ u8 roam_mode; /* 0 1 */ struct bss_bias_info bss; /* 0 1 */ struct low_rssi_scan_params params; /* 0 8 */ } info; /* 0 8 */ u8 roam_ctrl; /* 8 1 */ /* size: 9, cachelines: 1, members: 2 */ /* last cacheline: 9 bytes */ } __attribute__((__packed__)); After changes: struct roam_ctrl_cmd { union { u8 bssid[6]; /* 0 6 */ u8 roam_mode; /* 0 1 */ struct low_rssi_scan_params params; /* 0 8 */ } info; /* 0 8 */ u8 roam_ctrl; /* 8 1 */ /* size: 9, cachelines: 1, members: 2 */ /* last cacheline: 9 bytes */ } __attribute__((__packed__)); With these changes fix the following warning: drivers/net/wireless/ath/ath6kl/wmi.h:1658:20: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end] Signed-off-by: Gustavo A. R. Silva Link: https://patch.msgid.link/aZ0tGZnmtGckKJzY@kspp Signed-off-by: Jeff Johnson

wifi: cfg80211: support key installation on non-netdev wdevs

2026-03-02T10:28:33+00:00

Currently key installation is only supported for netdev. For NAN, support most key operations (except setting default data key) on wdevs instead of netdevs, and adjust all the APIs and tracing to match. Since nothing currently sets NL80211_EXT_FEATURE_SECURE_NAN, this doesn't change anything (P2P Device already isn't allowed.) Signed-off-by: Avraham Stern Signed-off-by: Johannes Berg Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20260107150057.69a0cfad95fa.I00efdf3b2c11efab82ef6ece9f393382bcf33ba8@changeid Signed-off-by: Johannes Berg

wifi: nl80211/cfg80211: support stations of non-netdev interfaces

2026-03-02T08:23:03+00:00

Currently, a station can only be added to a netdev interface, mainly because there was no need for a station of a non-netdev interface. But for NAN, we will have stations that belong to the NL80211_IFTYPE_NAN interface. Prepare for adding/changing/deleting a station that belongs to a non-netdev interface. This doesn't actually allow such stations - this will be done in a different patch. Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20260219114327.65c9cc96f814.Ic02066b88bb8ad6b21e15cbea8d720280008c83b@changeid Signed-off-by: Johannes Berg

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

kernel.h: drop hex.h and update all hex.h users

2026-01-21T03:44:19+00:00

Remove from and update all users/callers of hex.h interfaces to directly #include as part of the process of putting kernel.h on a diet. Removing hex.h from kernel.h means that 36K C source files don't have to pay the price of parsing hex.h for the roughly 120 C source files that need it. This change has been build-tested with allmodconfig on most ARCHes. Also, all users/callers of in the entire source tree have been updated if needed (if not already #included). Link: https://lkml.kernel.org/r/20251215005206.2362276-1-rdunlap@infradead.org Signed-off-by: Randy Dunlap Reviewed-by: Andy Shevchenko Cc: Ingo Molnar Cc: Yury Norov (NVIDIA) Signed-off-by: Andrew Morton

wifi: ath6kl: Fix spellings

2025-06-27T14:42:45+00:00

Fix misspelling reported by codespell. Signed-off-by: Sumanth Gavini Link: https://patch.msgid.link/20250522205701.393612-1-sumanth.gavini@yahoo.com Signed-off-by: Jeff Johnson

wifi: cfg80211/mac80211: Add support to get radio index

2025-06-24T13:19:27+00:00

Currently, per-radio attributes are set on per-phy basis, i.e., all the radios present in a wiphy will take attributes values sent from user. But each radio in a wiphy can get different values from userspace based on its requirement. To extend support to set per-radio attributes, add support to get radio index from userspace. Add an NL attribute - NL80211_ATTR_WIPHY_RADIO_INDEX, to get user specified radio index for which attributes should be changed. Pass this to individual drivers, so that the drivers can use this radio index to change per-radio attributes when necessary. Currently, per-radio attributes identified are: NL80211_ATTR_WIPHY_TX_POWER_LEVEL NL80211_ATTR_WIPHY_ANTENNA_TX NL80211_ATTR_WIPHY_ANTENNA_RX NL80211_ATTR_WIPHY_RETRY_SHORT NL80211_ATTR_WIPHY_RETRY_LONG NL80211_ATTR_WIPHY_FRAG_THRESHOLD NL80211_ATTR_WIPHY_RTS_THRESHOLD NL80211_ATTR_WIPHY_COVERAGE_CLASS NL80211_ATTR_TXQ_LIMIT NL80211_ATTR_TXQ_MEMORY_LIMIT NL80211_ATTR_TXQ_QUANTUM By default, the radio index is set to -1. This means the attribute should be treated as a global configuration. If the user has not specified any index, then the radio index passed to individual drivers would be -1. This would indicate that the attribute applies to all radios in that wiphy. Signed-off-by: Roopni Devanathan Link: https://patch.msgid.link/20250615082312.619639-2-quic_rdevanat@quicinc.com Signed-off-by: Johannes Berg