lwn.git/net/wireless, branch doc/4.9

tree-wide: replace config_enabled() with IS_ENABLED()

2016-08-04T12:50:07+00:00

The use of config_enabled() against config options is ambiguous. In practical terms, config_enabled() is equivalent to IS_BUILTIN(), but the author might have used it for the meaning of IS_ENABLED(). Using IS_ENABLED(), IS_BUILTIN(), IS_MODULE() etc. makes the intention clearer. This commit replaces config_enabled() with IS_ENABLED() where possible. This commit is only touching bool config options. I noticed two cases where config_enabled() is used against a tristate option: - config_enabled(CONFIG_HWMON) [ drivers/net/wireless/ath/ath10k/thermal.c ] - config_enabled(CONFIG_BACKLIGHT_CLASS_DEVICE) [ drivers/gpu/drm/gma500/opregion.c ] I did not touch them because they should be converted to IS_BUILTIN() in order to keep the logic, but I was not sure it was the authors' intention. Link: http://lkml.kernel.org/r/1465215656-20569-1-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada Acked-by: Kees Cook Cc: Stas Sergeev Cc: Matt Redfearn Cc: Joshua Kinard Cc: Jiri Slaby Cc: Bjorn Helgaas Cc: Borislav Petkov Cc: Markos Chandras Cc: "Dmitry V. Levin" Cc: yu-cheng yu Cc: James Hogan Cc: Brian Gerst Cc: Johannes Berg Cc: Peter Zijlstra Cc: Al Viro Cc: Will Drewry Cc: Nikolay Martynov Cc: Huacai Chen Cc: "H. Peter Anvin" Cc: Thomas Gleixner Cc: Daniel Borkmann Cc: Leonid Yegoshin Cc: Rafal Milecki Cc: James Cowgill Cc: Greg Kroah-Hartman Cc: Ralf Baechle Cc: Alex Smith Cc: Adam Buchbinder Cc: Qais Yousef Cc: Jiang Liu Cc: Mikko Rapeli Cc: Paul Gortmaker Cc: Denys Vlasenko Cc: Brian Norris Cc: Hidehiro Kawai Cc: "Luis R. Rodriguez" Cc: Andy Lutomirski Cc: Ingo Molnar Cc: Dave Hansen Cc: "Kirill A. Shutemov" Cc: Roland McGrath Cc: Paul Burton Cc: Kalle Valo Cc: Viresh Kumar Cc: Tony Wu Cc: Huaitong Han Cc: Sumit Semwal Cc: Alexei Starovoitov Cc: Juergen Gross Cc: Jason Cooper Cc: "David S. Miller" Cc: Oleg Nesterov Cc: Andrea Gelmini Cc: David Woodhouse Cc: Marc Zyngier Cc: Rabin Vincent Cc: "Maciej W. Rozycki" Cc: David Daney Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2016-07-24T04:53:32+00:00

Just several instances of overlapping changes. Signed-off-by: David S. Miller

cfg80211: Add mesh peer AID setting API

2016-07-06T13:04:52+00:00

Previously, mesh power management functionality works only with kernel MPM. Because user space MPM did not report mesh peer AID to kernel, the kernel could not identify the bit in TIM element. So this patch adds mesh peer AID setting API. Signed-off-by: Masashi Honma Signed-off-by: Johannes Berg

nl80211: support beacon report scanning

2016-07-06T12:51:31+00:00

Beacon report radio measurement requires reporting observed BSSs on the channels specified in the beacon request. If the measurement mode is set to passive or active, it requires actually performing a scan (passive or active, accordingly), and reporting the time that the scan was started and the time each beacon/probe was received (both in terms of TSF of the BSS of the requesting AP). If the request mode is table, this information is optional. In addition, the radio measurement request specifies the channel dwell time for the measurement. In order to use scan for beacon report when the mode is active or passive, add a parameter to scan request that specifies the channel dwell time, and add scan start time and beacon received time to scan results information. Supporting beacon report is required for Multi Band Operation (MBO). Signed-off-by: Assaf Krauss Signed-off-by: David Spinadel Signed-off-by: Avraham Stern Signed-off-by: Luca Coelho Signed-off-by: Johannes Berg

nl80211: Add API to support VHT MU-MIMO air sniffer

2016-07-06T12:46:04+00:00

add API to support VHT MU-MIMO air sniffer. in MU-MIMO there are parallel frames on the air while the HW has only one RX. add the capability to sniff one of the MU-MIMO parallel frames by giving the sniffer additional information so it'll know which of the parallel frames it shall follow. Add attribute - NL80211_ATTR_MU_MIMO_GROUP_DATA - for getting a MU-MIMO groupID in order to monitor packets from that group using VHT MU-MIMO. And add attribute -NL80211_ATTR_MU_MIMO_FOLLOW_ADDR - for passing MAC address to monitor mode. that option will be used by VHT MU-MIMO air sniffer to follow a station according to it's MAC address using VHT MU-MIMO. Signed-off-by: Aviya Erenfeld Signed-off-by: Luca Coelho Signed-off-by: Johannes Berg

cfg80211: handle failed skb allocation

2016-07-06T11:52:18+00:00

Handle the case when dev_alloc_skb returns NULL. Cc: stable@vger.kernel.org Fixes: 2b67f944f88c2 ("cfg80211: reuse existing page fragments in A-MSDU rx") Signed-off-by: Gregory Greenman Signed-off-by: Luca Coelho Signed-off-by: Johannes Berg

nl80211: Move ACL parsing later to avoid a possible memory leak

2016-07-06T11:09:02+00:00

No support for pbss results in a memory leak for the acl_data (if parse_acl_data succeeds). Fix this by moving the ACL parsing later. Cc: stable@vger.kernel.org Fixes: 34d505193bd10 ("cfg80211: basic support for PBSS network type") Signed-off-by: Purushottam Kushwaha Signed-off-by: Johannes Berg

nl80211: improve nl80211_parse_mesh_config type checking

2016-06-30T10:06:18+00:00

When building a kernel with W=1, the nl80211.c file causes a number of warnings, all about the same problem: net/wireless/nl80211.c: In function 'nl80211_parse_mesh_config': net/wireless/nl80211.c:5287:103: error: comparison is always false due to limited range of data type [-Werror=type-limits] net/wireless/nl80211.c:5290:96: error: comparison is always false due to limited range of data type [-Werror=type-limits] net/wireless/nl80211.c:5293:124: error: comparison is always false due to limited range of data type [-Werror=type-limits] net/wireless/nl80211.c:5295:148: error: comparison is always false due to limited range of data type [-Werror=type-limits] net/wireless/nl80211.c:5298:106: error: comparison is always false due to limited range of data type [-Werror=type-limits] net/wireless/nl80211.c:5305:116: error: comparison is always false due to limited range of data type [-Werror=type-limits] The problem is that gcc does not notice that the check is generate by a macro, so it complains about comparing an unsigned type against 0. I've tried to come up with a way to rephrase that code in a way that avoids the warnings and otherwise improves the code as well. This uses a set of new helper functions that perform the range checking, and should provide slightly better type safety than the older patch, at the expense of adding 44 lines to the code. Binary code size is basically unchanged though (20 bytes added to 126561 bytes .text). Signed-off-by: Arnd Bergmann Signed-off-by: Johannes Berg

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2016-06-30T09:03:36+00:00

Several cases of overlapping changes, except the packet scheduler conflicts which deal with the addition of the free list parameter to qdisc_enqueue(). Signed-off-by: David S. Miller

cfg80211: fix proto in ieee80211_data_to_8023 for frames without LLC header

2016-06-29T09:50:33+00:00

The PDU length of incoming LLC frames is set to the total skb payload size in __ieee80211_data_to_8023() of net/wireless/util.c which incorrectly includes the length of the IEEE 802.11 header. The resulting LLC frame header has a too large PDU length, causing the llc_fixup_skb() function of net/llc/llc_input.c to reject the incoming skb, effectively breaking STP. Solve the problem by properly substracting the IEEE 802.11 frame header size from the PDU length, allowing the LLC processor to pick up the incoming control messages. Special thanks to Gerry Rozema for tracking down the regression and proposing a suitable patch. Fixes: 2d1c304cb2d5 ("cfg80211: add function for 802.3 conversion with separate output buffer") Cc: stable@vger.kernel.org Reported-by: Gerry Rozema Signed-off-by: Felix Fietkau Signed-off-by: Johannes Berg