kernel/linux.git/drivers/net/wireless/atmel, branch v6.19.11

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

Merge tag 'wireless-2025-04-11' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless

2025-04-11T23:38:04+00:00

Johannes Berg says: ==================== Just a handful of fixes, notably - iwlwifi: various build warning fixes (e.g. PM_SLEEP) - iwlwifi: fix operation when FW reset handshake times out - mac80211: drop pending frames on interface down * tag 'wireless-2025-04-11' of https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless: Revert "wifi: mac80211: Update skb's control block key in ieee80211_tx_dequeue()" wifi: iwlwifi: mld: Restart firmware on iwl_mld_no_wowlan_resume() error wifi: iwlwifi: pcie: set state to no-FW before reset handshake wifi: wl1251: fix memory leak in wl1251_tx_work wifi: brcmfmac: fix memory leak in brcmf_get_module_param wifi: iwlwifi: mld: silence uninitialized variable warning wifi: mac80211: Purge vif txq in ieee80211_do_stop() wifi: mac80211: Update skb's control block key in ieee80211_tx_dequeue() wifi: at76c50x: fix use after free access in at76_disconnect wifi: add wireless list to MAINTAINERS iwlwifi: mld: fix building with CONFIG_PM_SLEEP disabled wifi: iwlwifi: mld: fix PM_SLEEP -Wundef warning wifi: iwlwifi: mld: reduce scope for uninitialized variable ==================== Link: https://patch.msgid.link/20250411142354.24419-3-johannes@sipsolutions.net Signed-off-by: Jakub Kicinski

treewide: Switch/rename to timer_delete[_sync]()

2025-04-05T08:30:12+00:00

timer_delete[_sync]() replaces del_timer[_sync](). Convert the whole tree over and remove the historical wrapper inlines. Conversion was done with coccinelle plus manual fixups where necessary. Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar

wifi: at76c50x: fix use after free access in at76_disconnect

2025-04-02T08:43:56+00:00

The memory pointed to by priv is freed at the end of at76_delete_device function (using ieee80211_free_hw). But the code then accesses the udev field of the freed object to put the USB device. This may also lead to a memory leak of the usb device. Fix this by using udev from interface. Fixes: 29e20aa6c6af ("at76c50x-usb: fix use after free on failure path in at76_probe()") Signed-off-by: Abdun Nihaal Link: https://patch.msgid.link/20250330103110.44080-1-abdun.nihaal@gmail.com Signed-off-by: Johannes Berg

wifi: mac80211: inform the low level if drv_stop() is a suspend

2024-06-26T08:25:46+00:00

This will allow the low level driver to take different actions for different flows. Signed-off-by: Emmanuel Grumbach Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20240618192529.739036208b6e.Ie18a2fe8e02bf2717549d39420b350cfdaf3d317@changeid Signed-off-by: Johannes Berg

wifi: at76c50x: prefer struct_size over open coded arithmetic

2024-06-12T12:00:33+00:00

This is an effort to get rid of all multiplications from allocation functions in order to prevent integer overflows [1][2]. As the "cmd_buf" variable is a pointer to "struct at76_command" and this structure ends in a flexible array: struct at76_command { [...] u8 data[]; } __packed; the preferred way in the kernel is to use the struct_size() helper to do the arithmetic instead of the calculation "size + count" in the kmalloc() function. Also, declare a new variable (total_size) since the return value of the struct_size() helper is used several times. At the same time, prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). In this case, it is important to note that the attribute used is "__counted_by_le" since the counter type is "__le16". This way, the code is more readable and safer. Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#open-coded-arithmetic-in-allocator-arguments [1] Link: https://github.com/KSPP/linux/issues/160 [2] Signed-off-by: Erick Archer Signed-off-by: Kalle Valo Link: https://msgid.link/AS8PR02MB7237578654CEDDFE5F8C17BA8BFE2@AS8PR02MB7237.eurprd02.prod.outlook.com

wifi: at76c50x: use sizeof(*pointer) instead of sizeof(type)

2024-06-12T12:00:33+00:00

It is preferred to use sizeof(*pointer) instead of sizeof(type) due to the type of the variable can change and one needs not change the former (unlike the latter). This patch has no effect on runtime behavior. At the same time remove some redundant NULL initializations. Signed-off-by: Erick Archer Signed-off-by: Kalle Valo Link: https://msgid.link/AS8PR02MB7237C784C14DBC943CB719F88BFE2@AS8PR02MB7237.eurprd02.prod.outlook.com

wifi: mac80211: simplify non-chanctx drivers

2024-02-08T11:58:32+00:00

There are still surprisingly many non-chanctx drivers, but in mac80211 that code is a bit awkward. Simplify this by having those drivers assign 'emulated' ops, so that the mac80211 code can be more unified between non-chanctx/chanctx drivers. This cuts the number of places caring about it by about 15, which are scattered across - now they're fewer and no longer in the channel context handling. Link: https://msgid.link/20240129194108.6d0ead50f5cf.I60d093b2fc81ca1853925a4d0ac3a2337d5baa5b@changeid Signed-off-by: Johannes Berg

wifi: atmel: remove wext style at76c50x drivers

2023-10-30T17:27:49+00:00

Atmel at76c502/at76c504/at76c506 is a PIO-only (PCMCIA, mini-PCI and Cardbus) 802.11b driver with incomplete CFG80211 support. Both PCMCIA and WEXT are deprecated, and there is little chance that anyone is still using this driver, so remove it. The related at76c50x USB driver uses MAC80211 and remains. Signed-off-by: Arnd Bergmann Signed-off-by: Kalle Valo

wifi: atmel: remove unused ioctl function

2023-10-14T06:41:21+00:00

This function has no callers, and for the past 20 years, the request_firmware interface has been in place instead of the custom firmware loader. Acked-by: Kalle Valo Signed-off-by: Arnd Bergmann Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20231011140225.253106-8-arnd@kernel.org