- 06 Mar, 2013 30 commits
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Stanislaw Gruszka authored
Since now we disconnect before suspend, various code which save connection state can now be removed from suspend and resume procedure. Cleanup on resume side is smaller as ieee80211_reconfig() is also used for H/W restart. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Stanislaw Gruszka authored
If possible that after suspend, cfg80211 will receive request to disconnect what require action on interface that was removed during suspend. Problem can manifest itself by various warnings similar to below one: WARNING: at net/mac80211/driver-ops.h:12 ieee80211_bss_info_change_notify+0x2f9/0x300 [mac80211]() wlan0: Failed check-sdata-in-driver check, flags: 0x4 Call Trace: [<c043e0b3>] warn_slowpath_fmt+0x33/0x40 [<f83707c9>] ieee80211_bss_info_change_notify+0x2f9/0x300 [mac80211] [<f83a660a>] ieee80211_recalc_ps_vif+0x2a/0x30 [mac80211] [<f83a6706>] ieee80211_set_disassoc+0xf6/0x500 [mac80211] [<f83a9441>] ieee80211_mgd_deauth+0x1f1/0x280 [mac80211] [<f8381b36>] ieee80211_deauth+0x16/0x20 [mac80211] [<f8261e70>] cfg80211_mlme_down+0x70/0xc0 [cfg80211] [<f8264de1>] __cfg80211_disconnect+0x1b1/0x1d0 [cfg80211] To fix the problem disconnect from any associated network before suspend. User space is responsible to establish connection again after resume. This basically need to be done by user space anyway, because associated stations can go away during suspend (for example NetworkManager disconnects on suspend and connect on resume by default). Patch also handle situation when driver refuse to suspend with wowlan configured and try to suspend again without it. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Stanislaw Gruszka authored
Since two years no mac80211 driver implement support for NAPI. Looks this feature is unneeded, so remove it from generic mac80211 code. Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Felix Fietkau authored
A sample attempt should only count in mi->sample_tries if the sample attempt wasn't skipped based on slower rate criteria. This patch increases the sampling frequency for potentially desirable rates and thus enables faster recovery from interference or collisions. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Felix Fietkau authored
If a rate is below the max_tp_rate, sample it frequently if: - it is above max_tp_rate2, or - it is above max_prob_rate and is a candidate for max_prob_rate (has fewer streams than max_tp_rate). This helps the retry chain recover more quickly from bad statistics caused by collisions or interference, and slightly reduces throughput fluctuations with higher rates. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Felix Fietkau authored
Try to sample all available rates, as sample attempts do not cost much airtime and are appropriately spaced based on the average A-MPDU length. This helps with faster recovery on rate fluctuations. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Felix Fietkau authored
max_prob_rate should be selected to be very reliable, however limiting it to single-stream on 3-stream devices is a bit much. Allow max_prob_rate to use one stream less than the max_tp_rate. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Felix Fietkau authored
At high data rates the average frame transmission durations are small enough for rounding errors to matter, sometimes causing minstrel to use slightly lower transmit rates than necessary. To fix this, change the unit of the duration value to nanoseconds instead of microseconds, and reorder the multiplications/divisions when calculating the throughput metric so that they don't overflow or truncate prematurely. At 2-stream HT40 this makes TCP throughput a bit more stable. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Jouni Malinen authored
Add NL80211_CMD_UPDATE_FT_IES to support update of FT IEs to the WLAN driver and NL80211_CMD_FT_EVENT to send FT events from the WLAN driver. This will carry the target AP's MAC address along with the relevant Information Elements. This event is used to report received FT IEs (MDIE, FTIE, RSN IE, TIE, RICIE). These changes allow FT to be supported with drivers that use an internal SME instead of user space option (like FT implementation in wpa_supplicant with mac80211-based drivers). Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Johannes Berg authored
It's not useful to specify a 0 keepalive interval, this would send too much data. Prohibit this to also avoid device issues. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Ilan Peer authored
Some devices can handle remain on channel requests differently based on the request type/priority. Add support to differentiate between different ROC types, i.e., indicate that the ROC is required for sending managment frames. Signed-off-by: Ilan Peer <ilan.peer@intel.com> Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Johannes Berg authored
cfg80211_mlme_assoc() has grown far too many arguments, make the caller build almost all of the driver struct and pass that to the function instead. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Johannes Berg authored
Support the cfg80211 API to override VHT capabilities on association. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Johannes Berg authored
For testing it's sometimes useful to be able to override certain VHT capability advertisement, add the ability to do that in cfg80211. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Johannes Berg authored
There's an enum with the same values (but slightly different names except for NOT_SUPPORTED) that is actually used, so remove the defines. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Johannes Berg authored
This is the sort of thing gcc's LTO could do, but since we don't have that yet we can also do it manually. The advantage is reduced code, both source and binary, e.g. on x86-64 text data bss dec hex filename 442825 56230 776 499831 7a077 cfg80211.ko (before) 441585 56230 776 498591 79b9f cfg80211.ko (after) a reduction of ~1k. But in order to not complicate the code move only those functions that are simple wrappers, not those that have functionality of their own. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Johannes Berg authored
Add back the channel width and extended capability data to wiphy information if split information is supported. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Felix Fietkau authored
Regardless of what header features they use, or if they align the IP header or not, 802.11 packets from all drivers guarantee a 2-byte alignment (and there's a debug WARN_ON in case they don't). Annotate packet structs with __aligned(2) to allow the compiler to use 16-bit load/store operations on platforms with extremely inefficient unaligned access (e.g. MIPS). This reduces code size and improves performance on affected platforms and causes no binary code change on others. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Johannes Berg authored
Move the sequence number arithmetic code from mac80211 to ieee80211.h so others can use it. Also rename the functions from _seq to _sn, they operate on the sequence number, not the sequence_control field. Also move macros to convert the sequence control to/from the sequence number value from various drivers. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Johannes Berg authored
Add back the previously removed TCP WoWLAN information, but only if userspace is prepared to deal with large wiphy capability data dumps. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Johannes Berg authored
If userspace is updated to deal with large split wiphy information dumps, add back the radar information that could otherwise push the data over the limit of the netlink dump messages. Cc: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Johannes Berg authored
The per-wiphy information is getting large, to the point where with more than the typical number of channels it's too large and overflows, and userspace can't get any of the information at all. To address this (in a way that doesn't require making all messages bigger) allow userspace to specify that it can deal with wiphy information split across multiple parts of the dump, and if it can split up the data. This also splits up each channel separately so an arbitrary number of channels can be supported. Additionally, since GET_WIPHY has the same problem, add support for filtering the wiphy dump and get information for a single wiphy only, this allows userspace apps to use dump in this case to retrieve all data from a single device. As userspace needs to know if all this this is supported, add a global nl80211 feature set and include a bit for this behaviour in it. Cc: Dennis H Jensen <dennis.h.jensen@siemens.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Johannes Berg authored
The comment says something about __skb_push(), but that isn't even called in the code any more. Looking at the git history, that comment never even made sense when it was still called, so just replace that part to note it still works even when align isn't 0 or 2. Reported-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Sachin Kamat authored
'rfkill_regulator_ops' is used only in this file. Hence make it static. Silences the following warning: net/rfkill/rfkill-regulator.c:54:19: warning: symbol 'rfkill_regulator_ops' was not declared. Should it be static? Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Johannes Berg authored
The station change API isn't being checked properly before drivers are called, and as a result it is difficult to see what should be allowed and what not. In order to comprehensively check the API parameters parse everything first, and then have the driver call a function (cfg80211_check_station_change()) with the additionally information about the kind of station that is being changed; this allows the function to make better decisions than the old code could. While at it, also add a few checks, particularly in mesh and clarify the TDLS station lifetime in documentation. To be able to reduce a few checks, ignore any flag set bits when the mask isn't set, they shouldn't be applied then. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Johannes Berg authored
Instead of copying the code, create a new function to parse the station's WME information. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Johannes Berg authored
Parse the attributes first, and then disable the apply flag if needed. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Johannes Berg authored
All the pointers point right into the skb data and not to anything that would be useful to change, so make them const. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Johannes Berg authored
Make the ability to leave the plink_state unchanged not use a magic -1 variable that isn't in the enum, but an explicit change flag; reject invalid plink states or actions and move the needed constants for plink actions to the right header file. Also reject plink_state changes for non-mesh interfaces. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Johannes Berg authored
There are a few things that would otherwise conflict. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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- 03 Mar, 2013 10 commits
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Linus Torvalds authored
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git://git.infradead.org/users/dhowells/linux-headersLinus Torvalds authored
Pull fbdev UAPI disintegration from David Howells: "You'll be glad to here that the end is nigh for the UAPI patches. Only the fbdev/framebuffer piece remains now that the SCSI stuff has gone in. Here are the UAPI disintegration bits for the fbdev drivers. It appears that Florian hasn't had time to deal with my patch, but back in December he did say he didn't mind if I pushed it forward." Yay. No more uapi movement. And hopefully no more big header file cleanups coming up either, it just tends to be very painful. * tag 'disintegrate-fbdev-20121220' of git://git.infradead.org/users/dhowells/linux-headers: UAPI: (Scripted) Disintegrate include/video
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Linus Torvalds authored
Merge tag 'stable/for-linus-3.9-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen Pull Xen bug-fixes from Konrad Rzeszutek Wilk: - Update the Xen ACPI memory and CPU hotplug locking mechanism. - Fix PAT issues wherein various applications would not start - Fix handling of multiple MSI as AHCI now does it. - Fix ARM compile failures. * tag 'stable/for-linus-3.9-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xenbus: fix compile failure on ARM with Xen enabled xen/pci: We don't do multiple MSI's. xen/pat: Disable PAT using pat_enabled value. xen/acpi: xen cpu hotplug minor updates xen/acpi: xen memory hotplug minor updates
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull more VFS bits from Al Viro: "Unfortunately, it looks like xattr series will have to wait until the next cycle ;-/ This pile contains 9p cleanups and fixes (races in v9fs_fid_add() etc), fixup for nommu breakage in shmem.c, several cleanups and a bit more file_inode() work" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: constify path_get/path_put and fs_struct.c stuff fix nommu breakage in shmem.c cache the value of file_inode() in struct file 9p: if v9fs_fid_lookup() gets to asking server, it'd better have hashed dentry 9p: make sure ->lookup() adds fid to the right dentry 9p: untangle ->lookup() a bit 9p: double iput() in ->lookup() if d_materialise_unique() fails 9p: v9fs_fid_add() can't fail now v9fs: get rid of v9fs_dentry 9p: turn fid->dlist into hlist 9p: don't bother with private lock in ->d_fsdata; dentry->d_lock will do just fine more file_inode() open-coded instances selinux: opened file can't have NULL or negative ->f_path.dentry (In the meantime, the hlist traversal macros have changed, so this required a semantic conflict fixup for the newly hlistified fid->dlist)
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git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfsLinus Torvalds authored
Pull btrfs fixup from Chris Mason: "Geert and James both sent this one in, sorry guys" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: btrfs/raid56: Add missing #include <linux/vmalloc.h>
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds authored
Pull second set of s390 patches from Martin Schwidefsky: "The main part of this merge are Heikos uaccess patches. Together with commit 09884964 ("mm: do not grow the stack vma just because of an overrun on preceding vma") the user string access is hopefully fixed for good. In addition some bug fixes and two cleanup patches." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/module: fix compile warning qdio: remove unused parameters s390/uaccess: fix kernel ds access for page table walk s390/uaccess: fix strncpy_from_user string length check input: disable i8042 PC Keyboard controller for s390 s390/dis: Fix invalid array size s390/uaccess: remove pointless access_ok() checks s390/uaccess: fix strncpy_from_user/strnlen_user zero maxlen case s390/uaccess: shorten strncpy_from_user/strnlen_user s390/dasd: fix unresponsive device after all channel paths were lost s390/mm: ignore change bit for vmemmap s390/page table dumper: add support for change-recording override bit
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Linus Torvalds authored
Merge branch 'fixes-for-3.9-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull second round of PARISC updates from Helge Deller: "The most important fix in this branch is the switch of io_setup, io_getevents and io_submit syscalls to use the available compat syscalls when running 32bit userspace on 64bit kernel. Other than that it's mostly removal of compile warnings." * 'fixes-for-3.9-latest' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: fix redefinition of SET_PERSONALITY parisc: do not install modules when installing kernel parisc: fix compile warnings triggered by atomic_sub(sizeof(),v) parisc: check return value of down_interruptible() in hp_sdc_rtc.c parisc: avoid unitialized variable warning in pa_memcpy() parisc: remove unused variable 'compat_val' parisc: switch to compat_functions of io_setup, io_getevents and io_submit parisc: select ARCH_WANT_FRAME_POINTERS
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git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metagLinus Torvalds authored
Pull new ImgTec Meta architecture from James Hogan: "This adds core architecture support for Imagination's Meta processor cores, followed by some later miscellaneous arch/metag cleanups and fixes which I kept separate to ease review: - Support for basic Meta 1 (ATP) and Meta 2 (HTP) core architecture - A few fixes all over, particularly for symbol prefixes - A few privilege protection fixes - Several cleanups (setup.c includes, split out a lot of metag_ksyms.c) - Fix some missing exports - Convert hugetlb to use vm_unmapped_area() - Copy device tree to non-init memory - Provide dma_get_sgtable()" * tag 'metag-v3.9-rc1-v4' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag: (61 commits) metag: Provide dma_get_sgtable() metag: prom.h: remove declaration of metag_dt_memblock_reserve() metag: copy devicetree to non-init memory metag: cleanup metag_ksyms.c includes metag: move mm/init.c exports out of metag_ksyms.c metag: move usercopy.c exports out of metag_ksyms.c metag: move setup.c exports out of metag_ksyms.c metag: move kick.c exports out of metag_ksyms.c metag: move traps.c exports out of metag_ksyms.c metag: move irq enable out of irqflags.h on SMP genksyms: fix metag symbol prefix on crc symbols metag: hugetlb: convert to vm_unmapped_area() metag: export clear_page and copy_page metag: export metag_code_cache_flush_all metag: protect more non-MMU memory regions metag: make TXPRIVEXT bits explicit metag: kernel/setup.c: sort includes perf: Enable building perf tools for Meta metag: add boot time LNKGET/LNKSET check metag: add __init to metag_cache_probe() ...
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git://git.linaro.org/people/rmk/linux-armLinus Torvalds authored
Pull late ARM updates from Russell King: "Here is the late set of ARM updates for this merge window; in here is: - The ARM parts of the broadcast timer support, core parts merged through tglx's tree. This was left over from the previous merge to allow the dependency on tglx's tree to be resolved. - A fix to the VFP code which shows up on Raspberry Pi's, as well as fixing the fallout from a previous commit in this area. - A number of smaller fixes scattered throughout the ARM tree" * 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: ARM: Fix broken commit 0cc41e4a corrupting kernel messages ARM: fix scheduling while atomic warning in alignment handling code ARM: VFP: fix emulation of second VFP instruction ARM: 7656/1: uImage: Error out on build of multiplatform without LOADADDR ARM: 7640/1: memory: tegra_ahb_enable_smmu() depends on TEGRA_IOMMU_SMMU ARM: 7654/1: Preserve L_PTE_VALID in pte_modify() ARM: 7653/2: do not scale loops_per_jiffy when using a constant delay clock ARM: 7651/1: remove unused smp_timer_broadcast #define
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds authored
Pull char/misc patch from Greg Kroah-Hartman: "Here is one remaining patch for 3.9-rc1. It is for the hyper-v drivers, and had to wait until some other patches went in through the x86 tree." Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> * tag 'char-misc-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: Drivers: hv: vmbus: Use the new infrastructure for delivering VMBUS interrupts
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