linux/drivers/net/wireless, branch v4.15

Merge tag 'wireless-drivers-for-davem-2018-01-17' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers

2018-01-18T21:23:10Z

Kalle Valo says: ==================== wireless-drivers fixes for 4.15 One last set of fixes for regression submitted during the last few days. bcma & ssb * fix older build problems which (apparently) recently became more frequent in certain MIPS configurations brcmfmac * continue driver initialisation even if CLM blob (firmware) file is not found ==================== Signed-off-by: David S. Miller

brcmfmac: fix CLM load error for legacy chips when user helper is enabled

2018-01-16T19:17:32Z

For legacy chips without CLM blob files, kernel with user helper function returns -EAGAIN when we request_firmware(), and then driver got failed when bringing up legacy chips. We expect the CLM blob file for legacy chip is not existence in firmware path, but the -ENOENT error is transferred to -EAGAIN in firmware_class.c with user helper. Because of that, we continue with CLM data currently present in firmware if getting error from doing request_firmware(). Cc: stable@vger.kernel.org # v4.15.y Reviewed-by: Arend van Spriel Signed-off-by: Wright Feng Signed-off-by: Kalle Valo

mac80211_hwsim: validate number of different channels

2018-01-15T08:34:45Z

When creating a new radio on the fly, hwsim allows this to be done with an arbitrary number of channels, but cfg80211 only supports a limited number of simultaneous channels, leading to a warning. Fix this by validating the number - this requires moving the define for the maximum out to a visible header file. Reported-by: syzbot+8dd9051ff19940290931@syzkaller.appspotmail.com Fixes: b59ec8dd4394 ("mac80211_hwsim: fix number of channels in interface combinations") Signed-off-by: Johannes Berg

mac80211_hwsim: add workqueue to wait for deferred radio deletion on mod unload

2018-01-15T08:18:27Z

When closing multiple wmediumd instances with many radios and try to unload the mac80211_hwsim module, it may happen that the work items live longer than the module. To wait especially for this deletion work items, add a work queue, otherwise flush_scheduled_work would be necessary. Signed-off-by: Benjamin Beichler Signed-off-by: Johannes Berg

Merge tag 'wireless-drivers-for-davem-2018-01-09' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers

2018-01-10T20:08:46Z

Kalle Valo says: ==================== wireless-drivers fixes for 4.15 Hopefully the last set of fixes for 4.15. iwlwifi * fix DMA mapping regression since v4.14 wcn36xx * fix dynamic power save which has been broken since the driver was commited ==================== Signed-off-by: David S. Miller

Merge ath-current from git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git

2018-01-05T12:02:36Z

ath.git fixes for 4.15. Major changes: wcn36xx * fix dynamic power save which has been broken since the driver was commited

iwlwifi: pcie: fix DMA memory mapping / unmapping

2018-01-05T11:54:22Z

22000 devices (previously referenced as A000) can support short transmit queues. This means that we have less DMA descriptors (TFD) for those shorter queues. Previous devices must still have 256 TFDs for each queue even if those 256 TFDs point to fewer buffers. When I introduced support for the short queues for 22000 I broke older devices by assuming that they can also have less TFDs in their queues. This led to several problems: 1) the payload of the commands weren't unmapped properly which caused the SWIOTLB to complain at some point. 2) the hardware could get confused and we get hardware crashes. The corresponding bugzilla entries are: https://bugzilla.kernel.org/show_bug.cgi?id=198201 https://bugzilla.kernel.org/show_bug.cgi?id=198265 Cc: stable@vger.kernel.org # 4.14+ Fixes: 4ecab5616023 ("iwlwifi: pcie: support short Tx queues for A000 device family") Reviewed-by: Sharon, Sara Signed-off-by: Emmanuel Grumbach Signed-off-by: Kalle Valo

wcn36xx: Fix dynamic power saving

2018-01-04T16:41:48Z

Since driver does not report hardware dynamic power saving cap, this is up to the mac80211 to manage power saving timeout and state machine, using the ieee80211 config callback to report PS changes. This patch enables/disables PS mode according to the new configuration. Remove old behaviour enabling PS mode in a static way, this make the device unusable when power save is enabled since device is forced to PS regardless RX/TX traffic. Acked-by: Bjorn Andersson Signed-off-by: Loic Poulain Signed-off-by: Kalle Valo

Merge tag 'mac80211-for-davem-2017-12-19' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211

2017-12-19T14:39:11Z

Johannes Berg says: ==================== A few more fixes: * hwsim: - set To-DS bit in some frames missing it - fix sleeping in atomic * nl80211: - doc cleanup - fix locking in an error path * build: - don't append to created certs C files - ship certificate pre-hexdumped ==================== Signed-off-by: David S. Miller

mac80211_hwsim: Fix a possible sleep-in-atomic bug in hwsim_get_radio_nl

2017-12-19T08:14:06Z

The driver may sleep under a spinlock. The function call path is: hwsim_get_radio_nl (acquire the spinlock) nlmsg_new(GFP_KERNEL) --> may sleep To fix it, GFP_KERNEL is replaced with GFP_ATOMIC. This bug is found by my static analysis tool(DSAC) and checked by my code review. Signed-off-by: Jia-Ju Bai Signed-off-by: Johannes Berg