- 03 1月, 2013 33 次提交
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由 Johannes Berg 提交于
Many places that currently check that cfg80211_mutex is held don't actually use any data protected by it. The functions that need to hold the cfg80211_mutex are the ones using the cfg80211_regdomain variable, so add the lock assertion to those and clarify this in the comments. The reason for this is that nl80211 uses the regdom without being able to hold reg_mutex. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
The function itself has dual-purpose: it can retrieve from a given regdomain or from the globally installed one. Change it to have a single purpose only: to look up from a given regdomain. Pass the correct regdomain in the freq_reg_info() function instead. This also changes the locking rules for it, no locking is required any more. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
Even if it never happens and is hidden behind the debug config option, it's completely useless: the calltrace will only show module loading. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
toupper() only modifies lower-case letters, so the isalpha() check is redundant; remove it. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
Use list_splice_tail_init() and also simplify the locking. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
This code is a bit too BUG_ON happy, remove all instances and while doing so make some code a bit smarter by passing the right pointer instead of indices into arrays. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
This is pretty much useless since get_wiphy_idx() always returns true since it's always called with a valid wiphy pointer. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
Instead of treating special error codes specially, like -EALREADY, introduce a real enum for all the needed possibilities and use it. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
It would be a major problem if anything were to run concurrently while the module is being unloaded so remove the locking that doesn't help anything. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
Clean up various things like indentation, extra parentheses, too many/few line breaks, etc. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
There's no need to unlock before calling queue_regulatory_request(), so simplify the function. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
There's no need to test whether a list is empty or not before iterating. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
Use ERR_PTR/IS_ERR to return the result or errors, also do some code cleanups. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
As the dummy_rule (also renamed from irule) is only used for output by the reg_rules_intersect() function there's no need to clear it at all, remove that. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
There's no need to allocate one reg rule more than will be used, reduce the allocations. The allocation in nl80211 already doesn't allocate too much space. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
When intersecting rules, we count first to know how many rules need to be allocated, and then do the intersection into the allocated array. However, the code doing this writes past the end of the array because it attempts to do all intersections. Make it stop when the right number of rules has been reached. Acked-by: NLuis R. Rodriguez <mcgrof@do-not-panic.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
In a file that's only built when CONFIG_MAC80211_MESH is defined, having an #ifdef on the same is entirely pointless, so remove it. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
The last fixes re-added the RCU synchronize penalty on roaming to fix the races. Split up sta_info_flush() now to get rid of that again, and let managed mode (and only it) delay the actual destruction. Tested-by: NBen Greear <greearb@candelatech.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
When an interface is brought down it must have been disconnected (or similar) in all modes other than WDS, so warn if any stations were removed in other modes. Tested-by: NBen Greear <greearb@candelatech.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
When all interfaces have been removed, there can't be any stations left over, so there's no need to flush again. Remove this, and all code associated with it, which also simplifies the function. Tested-by: NBen Greear <greearb@candelatech.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Vladimir Kondratiev 提交于
define bits for 'capability info', as in recent spec edition IEEE802.11-2012 Also, add mask for 2-bit field 'bss type', as it is in 802.11ad Signed-off-by: NVladimir Kondratiev <qca_vkondrat@qca.qualcomm.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
Paged RX, i.e. SKBs with (some of) the data in pages instead of the SKB header data (skb->data) can behave differently in the stack and cause other bugs. To make debugging easier add an option to hwsim to test with such SKBs. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Chun-Yeow Yeoh 提交于
Use short slot time in 5GHz for mesh. The performance is increased from 16.4Mbps to 23.4Mbps for two directly connected mesh STAs operating in legacy rate using iperf measurement. Almost similar to the results claimed in IBSS mode. Signed-off-by: NChun-Yeow Yeoh <yeohchunyeow@gmail.com> [call ieee80211_get_sdata_band() only once] Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Ben Greear 提交于
This allows user-space (wpa_supplicant) to disable short guard interval (SGI) for 20Mhz. The SGI-40 disable option is already handled. Signed-off-by: NBen Greear <greearb@candelatech.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
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由 Chaitanya 提交于
The maximum MTU shouldn't take the headers into account, the maximum MSDU size is exactly the maximum MTU. Signed-off-by: NT Krishna Chaitanya <chaitanyatk@posedge.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
When AP's SSID is hidden the BSS can appear several times in cfg80211's BSS list: once with a zero-length SSID that comes from the beacon, and once for each SSID from probe reponses. Since the mac80211 stores its data in ieee80211_bss which is embedded into cfg80211_bss, mac80211's data will be duplicated too. This becomes a problem when a driver needs the dtim_period since this data exists only in the beacon's instance in cfg80211 bss table which isn't the instance that is used when associating. Remove the DTIM period from the BSS table and track it explicitly to avoid this problem. Cc: stable@vger.kernel.org Tested-by: NEfi Tubul <efi.tubul@intel.com> Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
This is a very old bug, but there's nothing that prevents the timer from running while the module is being removed when we only do del_timer() instead of del_timer_sync(). The timer should normally not be running at this point, but it's not clearly impossible (or we could just remove this.) Cc: stable@vger.kernel.org Tested-by: NBen Greear <greearb@candelatech.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
Unfortunately, commit b22cfcfc, intended to speed up roaming by avoiding the synchronize_rcu() broke AP/mesh modes as it moved some code into that work item that will still call into the driver at a time where it's no longer expected to handle this: after the AP or mesh has been stopped. To fix this problem remove the per-station work struct, maintain a station cleanup list instead and flush this list when stations are flushed. To keep this patch smaller for stable, do this when the stations are flushed (sta_info_flush()). This unfortunately brings back the original roaming delay; I'll fix that again in a separate patch. Also, Ben reported that the original commit could sometimes (with many interfaces) cause long delays when an interface is set down, due to blocking on flush_workqueue(). Since we now maintain the cleanup list, this particular change of the original patch can be reverted. Cc: stable@vger.kernel.org [3.7] Reported-by: NBen Greear <greearb@candelatech.com> Tested-by: NBen Greear <greearb@candelatech.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Thomas Pedersen 提交于
The array of rmc_entrys is redundant since only the list_head is used. Make this an array of list_heads instead and save ~6k per vif at runtime :D Signed-off-by: NThomas Pedersen <thomas@cozybit.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Johannes Berg 提交于
Make AP_VLAN type interfaces track the AP master channel context so they have one assigned for the various lookups. Don't give them their own refcount etc. since they're just slaves to the AP master. Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Felix Fietkau 提交于
Signed-off-by: NFelix Fietkau <nbd@openwrt.org> [change to flush stations with AP flush in second loop] Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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由 Stanislaw Gruszka 提交于
Do not scan on no-IBSS and disabled channels in IBSS mode. Doing this can trigger Microcode errors on iwlwifi and iwlegacy drivers. Also rename ieee80211_request_internal_scan() function since it is only used in IBSS mode and simplify calling it from ieee80211_sta_find_ibss(). This patch should address: https://bugzilla.redhat.com/show_bug.cgi?id=883414 https://bugzilla.kernel.org/show_bug.cgi?id=49411Reported-by: NJesse Kahtava <jesse_kahtava@f-m.fm> Reported-by: NMikko Rapeli <mikko.rapeli@iki.fi> Cc: stable@vger.kernel.org Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: NJohannes Berg <johannes.berg@intel.com>
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- 22 12月, 2012 7 次提交
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由 Linus Torvalds 提交于
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git://www.linux-watchdog.org/linux-watchdog由 Linus Torvalds 提交于
Pull watchdog updates from Wim Van Sebroeck: "This includes some fixes and code improvements (like clk_prepare_enable and clk_disable_unprepare), conversion from the omap_wdt and twl4030_wdt drivers to the watchdog framework, addition of the SB8x0 chipset support and the DA9055 Watchdog driver and some OF support for the davinci_wdt driver." * git://www.linux-watchdog.org/linux-watchdog: (22 commits) watchdog: mei: avoid oops in watchdog unregister code path watchdog: Orion: Fix possible null-deference in orion_wdt_probe watchdog: sp5100_tco: Add SB8x0 chipset support watchdog: davinci_wdt: add OF support watchdog: da9052: Fix invalid free of devm_ allocated data watchdog: twl4030_wdt: Change TWL4030_MODULE_PM_RECEIVER to TWL_MODULE_PM_RECEIVER watchdog: remove depends on CONFIG_EXPERIMENTAL watchdog: Convert dev_printk(KERN_<LEVEL> to dev_<level>( watchdog: DA9055 Watchdog driver watchdog: omap_wdt: eliminate goto watchdog: omap_wdt: delete redundant platform_set_drvdata() calls watchdog: omap_wdt: convert to devm_ functions watchdog: omap_wdt: convert to new watchdog core watchdog: WatchDog Timer Driver Core: fix comment watchdog: s3c2410_wdt: use clk_prepare_enable and clk_disable_unprepare watchdog: imx2_wdt: Select the driver via ARCH_MXC watchdog: cpu5wdt.c: add missing del_timer call watchdog: hpwdt.c: Increase version string watchdog: Convert twl4030_wdt to watchdog core davinci_wdt: preparation for switch to common clock framework ...
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git://git.samba.org/sfrench/cifs-2.6由 Linus Torvalds 提交于
Pull CIFS fixes from Steve French: "Misc small cifs fixes" * 'for-next' of git://git.samba.org/sfrench/cifs-2.6: cifs: eliminate cifsERROR variable cifs: don't compare uniqueids in cifs_prime_dcache unless server inode numbers are in use cifs: fix double-free of "string" in cifs_parse_mount_options
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git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm由 Linus Torvalds 提交于
Pull dm update from Alasdair G Kergon: "Miscellaneous device-mapper fixes, cleanups and performance improvements. Of particular note: - Disable broken WRITE SAME support in all targets except linear and striped. Use it when kcopyd is zeroing blocks. - Remove several mempools from targets by moving the data into the bio's new front_pad area(which dm calls 'per_bio_data'). - Fix a race in thin provisioning if discards are misused. - Prevent userspace from interfering with the ioctl parameters and use kmalloc for the data buffer if it's small instead of vmalloc. - Throttle some annoying error messages when I/O fails." * tag 'dm-3.8-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-dm: (36 commits) dm stripe: add WRITE SAME support dm: remove map_info dm snapshot: do not use map_context dm thin: dont use map_context dm raid1: dont use map_context dm flakey: dont use map_context dm raid1: rename read_record to bio_record dm: move target request nr to dm_target_io dm snapshot: use per_bio_data dm verity: use per_bio_data dm raid1: use per_bio_data dm: introduce per_bio_data dm kcopyd: add WRITE SAME support to dm_kcopyd_zero dm linear: add WRITE SAME support dm: add WRITE SAME support dm: prepare to support WRITE SAME dm ioctl: use kmalloc if possible dm ioctl: remove PF_MEMALLOC dm persistent data: improve improve space map block alloc failure message dm thin: use DMERR_LIMIT for errors ...
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由 J. Bruce Fields 提交于
This reverts commit 79f77bf9. This is obviously wrong, and I have no idea how I missed seeing the warning in testing: I must just not have looked at the right logs. The caller bumps rq_resused/rq_next_page, so it will always be hit on a large enough read. Reported-by: NDave Jones <davej@redhat.com> Signed-off-by: NJ. Bruce Fields <bfields@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband由 Linus Torvalds 提交于
Pull more infiniband changes from Roland Dreier: "Second batch of InfiniBand/RDMA changes for 3.8: - cxgb4 changes to fix lookup engine hash collisions - mlx4 changes to make flow steering usable - fix to IPoIB to avoid pinning dst reference for too long" * tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: RDMA/cxgb4: Fix bug for active and passive LE hash collision path RDMA/cxgb4: Fix LE hash collision bug for passive open connection RDMA/cxgb4: Fix LE hash collision bug for active open connection mlx4_core: Allow choosing flow steering mode mlx4_core: Adjustments to Flow Steering activation logic for SR-IOV mlx4_core: Fix error flow in the flow steering wrapper mlx4_core: Add QPN enforcement for flow steering rules set by VFs cxgb4: Add LE hash collision bug fix path in LLD driver cxgb4: Add T4 filter support IPoIB: Call skb_dst_drop() once skb is enqueued for sending
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic由 Linus Torvalds 提交于
Pull asm-generic cleanup from Arnd Bergmann: "These are a few cleanups for asm-generic: - a set of patches from Lars-Peter Clausen to generalize asm/mmu.h and use it in the architectures that don't need any special handling. - A patch from Will Deacon to remove the {read,write}s{b,w,l} as discussed during the arm64 review - A patch from James Hogan that helps with the meta architecture series." * tag 'asm-generic' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: xtensa: Use generic asm/mmu.h for nommu h8300: Use generic asm/mmu.h c6x: Use generic asm/mmu.h asm-generic/mmu.h: Add support for FDPIC asm-generic/mmu.h: Remove unused vmlist field from mm_context_t asm-generic: io: remove {read,write} string functions asm-generic/io.h: remove asm/cacheflush.h include
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