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2022-10-11treewide: use get_random_u32() when possibleJason A. Donenfeld1-1/+1
The prandom_u32() function has been a deprecated inline wrapper around get_random_u32() for several releases now, and compiles down to the exact same code. Replace the deprecated wrapper with a direct call to the real function. The same also applies to get_random_int(), which is just a wrapper around get_random_u32(). This was done as a basic find and replace. Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Yury Norov <yury.norov@gmail.com> Reviewed-by: Jan Kara <jack@suse.cz> # for ext4 Acked-by: Toke Høiland-Jørgensen <toke@toke.dk> # for sch_cake Acked-by: Chuck Lever <chuck.lever@oracle.com> # for nfsd Acked-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> # for thunderbolt Acked-by: Darrick J. Wong <djwong@kernel.org> # for xfs Acked-by: Helge Deller <deller@gmx.de> # for parisc Acked-by: Heiko Carstens <hca@linux.ibm.com> # for s390 Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2022-09-07wifi: wl18xx: add some missing endian conversionsJohannes Berg1-4/+4
This caused sparse warnings, and clearly is needed per how other firmware interfaces behave. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220904212910.2b5cb713cf4b.Ibabba2deb7bb22863d3a134e7a3333422d7eff17@changeid
2022-09-06wifi: mac80211: extend ieee80211_nullfunc_get() for MLOJohannes Berg2-3/+3
Add a link_id parameter to ieee80211_nullfunc_get() to be able to obtain a correctly addressed frame. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-27wifi: wl12xx: Drop if with an always false conditionUwe Kleine-König1-3/+0
The remove callback is only called after probe completed successfully. In this case platform_set_drvdata() was called with a non-NULL argument (in wlcore_probe()) and so wl is never NULL. This is a preparation for making platform remove callbacks return void. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220715224619.ht7bbzzrmysielm7@pengutronix.de
2022-07-18wifi: wl1251: fix repeated words in commentsJilin Yuan1-1/+1
Delete the redundant word 'the'. Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220710043405.38304-1-yuanjilin@cdjrlc.com
2022-07-15wifi: mac80211: replace link_id with link_conf in switch/(un)assign_vif_chanctx()Gregory Greenman1-2/+2
Since mac80211 already has a protected pointer to link_conf, pass it to the driver to avoid additional RCU locking. Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: mac80211: change QoS settings API to take link into accountJohannes Berg2-2/+4
Take the link into account in the QoS settings (EDCA parameters) APIs. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-07-15wifi: mac80211: move ps setting to vif configJohannes Berg1-2/+2
This really shouldn't be in a per-link config, we don't want to let anyone control it that way (if anything, link powersave could be forced through APIs to activate/deactivate a link), and we don't support powersave in software with devices that can do MLO. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-06-20wifi: mac80211: return a beacon for a specific linkShaul Triebitz2-3/+3
Pass the link id through to the get_beacon and return the beacon for a specific link id. Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-06-20wifi: mac80211: make channel context code MLO-awareJohannes Berg1-0/+2
Make the channel context code MLO aware, along with some functions that it uses, so that the chan.c file is now MLD-clean and no longer uses deflink/bss_conf/etc. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-06-20wifi: mac80211: split bss_info_changed methodJohannes Berg2-2/+2
Split the bss_info_changed method to vif_cfg_changed and link_info_changed, with the latter getting a link ID. Also change the 'changed' parameter to u64 already, we know we need that. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-06-20wifi: mac80211: move interface config to new structJohannes Berg3-24/+25
We'll use bss_conf for per-link configuration later, so move out all the non-link-specific data out into a new struct ieee80211_vif_cfg used in the vif. Some adjustments were done with the following spatch: @@ expression sdata; struct ieee80211_vif *vifp; identifier var = { assoc, ibss_joined, aid, arp_addr_list, arp_addr_cnt, ssid, ssid_len, s1g, ibss_creator }; @@ ( -sdata->vif.bss_conf.var +sdata->vif.cfg.var | -vifp->bss_conf.var +vifp->cfg.var ) @bss_conf@ struct ieee80211_bss_conf *bss_conf; identifier var = { assoc, ibss_joined, aid, arp_addr_list, arp_addr_cnt, ssid, ssid_len, s1g, ibss_creator }; @@ -bss_conf->var +vif_cfg->var (though more manual fixups were needed, e.g. replacing "vif_cfg->" by "vif->cfg." in many files.) Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-06-20wifi: mac80211: move some future per-link data to bss_confJohannes Berg1-1/+1
To add MLD, reuse the bss_conf structure later for per-link information, so move some things into it that are per link. Most transformations were done with the following spatch: @@ expression sdata; identifier var = { chanctx_conf, mu_mimo_owner, csa_active, color_change_active, color_change_color }; @@ -sdata->vif.var +sdata->vif.bss_conf.var @@ struct ieee80211_vif *vif; identifier var = { chanctx_conf, mu_mimo_owner, csa_active, color_change_active, color_change_color }; @@ -vif->var +vif->bss_conf.var Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-05-06wl1251: dynamically allocate memory used for DMAH. Nikolaus Schaller3-18/+39
With introduction of vmap'ed stacks, stack parameters can no longer be used for DMA and now leads to kernel panic. It happens at several places for the wl1251 (e.g. when accessed through SDIO) making it unuseable on e.g. the OpenPandora. We solve this by allocating temporary buffers or use wl1251_read32(). Tested on v5.18-rc5 with OpenPandora. Fixes: a1c510d0adc6 ("ARM: implement support for vmap'ed stacks") Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/1676021ae8b6d7aada0b1806fed99b1b8359bdc4.1651495112.git.hns@goldelico.com
2022-05-03Merge tag 'wireless-next-2022-05-03' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-nextJakub Kicinski10-246/+130
Kalle Valo says: ==================== wireless-next patches for v5.19 First set of patches for v5.19 and this is a big one. We have two new drivers, a change in mac80211 STA API affecting most drivers and ath11k getting support for WCN6750. And as usual lots of fixes and cleanups all over. Major changes: new drivers - wfx: silicon labs devices - plfxlc: pureLiFi X, XL, XC devices mac80211 - host based BSS color collision detection - prepare sta handling for IEEE 802.11be Multi-Link Operation (MLO) support rtw88 - support TP-Link T2E devices rtw89 - support firmware crash simulation - preparation for 8852ce hardware support ath11k - Wake-on-WLAN support for QCA6390 and WCN6855 - device recovery (firmware restart) support for QCA6390 and WCN6855 - support setting Specific Absorption Rate (SAR) for WCN6855 - read country code from SMBIOS for WCN6855/QCA6390 - support for WCN6750 wcn36xx - support for transmit rate reporting to user space * tag 'wireless-next-2022-05-03' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (228 commits) rtw89: 8852c: rfk: add DPK rtw89: 8852c: rfk: add IQK rtw89: 8852c: rfk: add RX DCK rtw89: 8852c: rfk: add RCK rtw89: 8852c: rfk: add TSSI rtw89: 8852c: rfk: add LCK rtw89: 8852c: rfk: add DACK rtw89: 8852c: rfk: add RFK tables plfxlc: fix le16_to_cpu warning for beacon_interval rtw88: remove a copy of the NAPI_POLL_WEIGHT define carl9170: tx: fix an incorrect use of list iterator wil6210: use NAPI_POLL_WEIGHT for napi budget ath10k: remove a copy of the NAPI_POLL_WEIGHT define ath11k: Add support for WCN6750 device ath11k: Datapath changes to support WCN6750 ath11k: HAL changes to support WCN6750 ath11k: Add QMI changes for WCN6750 ath11k: Fetch device information via QMI for WCN6750 ath11k: Add register access logic for WCN6750 ath11k: Add HW params for WCN6750 ... ==================== Link: https://lore.kernel.org/r/20220503153622.C1671C385A4@smtp.kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-04-23wl12xx: scan: use pm_runtime_resume_and_get() instead of pm_runtime_get_sync()Minghao Chi1-4/+2
Using pm_runtime_resume_and_get() to replace pm_runtime_get_sync and pm_runtime_put_noidle. This change is just to simplify the code, no actual functional changes. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220420090247.2588680-1-chi.minghao@zte.com.cn
2022-04-23wl12xx: use pm_runtime_resume_and_get() instead of pm_runtime_get_sync()Minghao Chi1-4/+2
Using pm_runtime_resume_and_get() to replace pm_runtime_get_sync and pm_runtime_put_noidle. This change is just to simplify the code, no actual functional changes. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220420090214.2588618-1-chi.minghao@zte.com.cn
2022-04-23wl18xx: debugfs: use pm_runtime_resume_and_get() instead of pm_runtime_get_sync()Minghao Chi1-12/+6
Using pm_runtime_resume_and_get is more appropriate for simplifing code Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220413093356.2538192-1-chi.minghao@zte.com.cn
2022-04-23wlcore: cmd: using pm_runtime_resume_and_get() instead of pm_runtime_get_sync()Minghao Chi1-4/+2
Using pm_runtime_resume_and_get() to replace pm_runtime_get_sync and pm_runtime_put_noidle. This change is just to simplify the code, no actual functional changes. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220420090141.2588553-1-chi.minghao@zte.com.cn
2022-04-23wlcore: sdio: using pm_runtime_resume_and_get() instead of pm_runtime_get_sync()Minghao Chi1-2/+1
Using pm_runtime_resume_and_get() to replace pm_runtime_get_sync and pm_runtime_put_noidle. This change is just to simplify the code, no actual functional changes. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220419110445.2574424-1-chi.minghao@zte.com.cn
2022-04-23wlcore: vendor_cmd: use pm_runtime_resume_and_get() instead of pm_runtime_get_sync()Minghao Chi1-12/+6
Using pm_runtime_resume_and_get is more appropriate for simplifing code Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220413093939.2538825-1-chi.minghao@zte.com.cn
2022-04-23wlcore: testmode: use pm_runtime_resume_and_get() instead of pm_runtime_get_sync()Minghao Chi1-8/+4
Using pm_runtime_resume_and_get is more appropriate for simplifing code Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220413093502.2538316-1-chi.minghao@zte.com.cn
2022-04-23wlcore: sysfs: use pm_runtime_resume_and_get() instead of pm_runtime_get_sync()Minghao Chi1-4/+2
Using pm_runtime_resume_and_get is more appropriate for simplifing code Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220413093431.2538254-1-chi.minghao@zte.com.cn
2022-04-23wlcore: main: use pm_runtime_resume_and_get() instead of pm_runtime_get_sync()Minghao Chi1-150/+75
Using pm_runtime_resume_and_get is more appropriate for simplifing code Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220412091742.2533527-1-chi.minghao@zte.com.cn
2022-04-12wlcore: debugfs: use pm_runtime_resume_and_get() instead of pm_runtime_get_sync()Minghao Chi1-35/+17
Using pm_runtime_resume_and_get is more appropriate for simplifing code Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220408081205.2494512-1-chi.minghao@zte.com.cn
2022-04-11mac80211: prepare sta handling for MLO supportSriram R2-11/+13
Currently in mac80211 each STA object is represented using sta_info datastructure with the associated STA specific information and drivers access ieee80211_sta part of it. With MLO (Multi Link Operation) support being added in 802.11be standard, though the association is logically with a single Multi Link capable STA, at the physical level communication can happen via different advertised links (uniquely identified by Channel, operating class, BSSID) and hence the need to handle multiple link STA parameters within a composite sta_info object called the MLD STA. The different link STA part of MLD STA are identified using the link address which can be same or different as the MLD STA address and unique link id based on the link vif. To support extension of such a model, the sta_info datastructure is modified to hold multiple link STA objects with link specific params currently within sta_info moved to this new structure. Similarly this is done for ieee80211_sta as well which will be accessed within mac80211 as well as by drivers, hence trivial driver changes are expected to support this. For current non MLO supported drivers, only one link STA is present and link information is accessed via 'deflink' member. For MLO drivers, we still need to define the APIs etc. to get the correct link ID and access the correct part of the station info. Currently in mac80211, all link STA info are accessed directly via deflink. These will be updated to access via link pointers indexed by link id with MLO support patches, with link id being 0 for non MLO supported cases. Except for couple of macro related changes, below spatch takes care of updating mac80211 and driver code to access to the link STA info via deflink. @ieee80211_sta@ struct ieee80211_sta *s; struct sta_info *si; identifier var = {supp_rates, ht_cap, vht_cap, he_cap, he_6ghz_capa, eht_cap, rx_nss, bandwidth, txpwr}; @@ ( s-> - var + deflink.var | si->sta. - var + deflink.var ) @sta_info@ struct sta_info *si; identifier var = {gtk, pcpu_rx_stats, rx_stats, rx_stats_avg, status_stats, tx_stats, cur_max_bandwidth}; @@ ( si-> - var + deflink.var ) Signed-off-by: Sriram R <quic_srirrama@quicinc.com> Link: https://lore.kernel.org/r/1649086883-13246-1-git-send-email-quic_srirrama@quicinc.com [remove MLO-drivers notes from commit message, not clear yet; run spatch] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-04-08mmc: core: improve API to make clear mmc_hw_reset is for cardsWolfram Sang1-1/+1
To make it unambiguous that mmc_hw_reset() is for cards and not for controllers, we make the function argument mmc_card instead of mmc_host. Also, all users are converted. Suggested-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Acked-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220408080045.6497-2-wsa+renesas@sang-engineering.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2022-02-09spi: make remove callback a void functionUwe Kleine-König2-6/+2
The value returned by an spi driver's remove function is mostly ignored. (Only an error message is printed if the value is non-zero that the error is ignored.) So change the prototype of the remove function to return no value. This way driver authors are not tempted to assume that passing an error to the upper layer is a good idea. All drivers are adapted accordingly. There is no intended change of behaviour, all callbacks were prepared to return 0 before. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Marc Kleine-Budde <mkl@pengutronix.de> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Jérôme Pouiller <jerome.pouiller@silabs.com> Acked-by: Miquel Raynal <miquel.raynal@bootlin.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Claudius Heine <ch@denx.de> Acked-by: Stefan Schmidt <stefan@datenfreihafen.org> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> # For MMC Acked-by: Marcus Folkesson <marcus.folkesson@gmail.com> Acked-by: Łukasz Stelmach <l.stelmach@samsung.com> Acked-by: Lee Jones <lee.jones@linaro.org> Link: https://lore.kernel.org/r/20220123175201.34839-6-u.kleine-koenig@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org>
2021-12-16wl1251: specify max. IE lengthMerlijn Wajer1-0/+6
This fix is similar to commit 77c91295ea53 ("wil6210: specify max. IE length"). Without the max IE length set, wpa_supplicant cannot operate using the nl80211 interface. This patch is a workaround - the number 512 is taken from the wlcore driver, but note that per Paul Fertser: there's no correct number because the driver will ignore the data passed in extra IEs. Suggested-by: Paul Fertser <fercerpav@gmail.com> Signed-off-by: Merlijn Wajer <merlijn@wizzup.org> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20211212221310.5453-1-merlijn@wizzup.org
2021-11-29wlcore: no need to initialise statics to falseJason Wang1-1/+1
Static variables do not need to be initialized to false. The compiler will do that. Signed-off-by: Jason Wang <wangborong@cdjrlc.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20211113063551.257804-1-wangborong@cdjrlc.com
2021-10-27wlcore: spi: Use dev_err_probe()Geert Uytterhoeven1-6/+3
Use the existing dev_err_probe() helper instead of open-coding the same operation. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/465e76901b801ac0755088998249928fd546c08a.1634647460.git.geert+renesas@glider.be
2021-07-05Merge tag 'driver-core-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-coreLinus Torvalds1-1/+1
Pull driver core changes from Greg KH: "Here is the small set of driver core and debugfs updates for 5.14-rc1. Included in here are: - debugfs api cleanups (touched some drivers) - devres updates - tiny driver core updates and tweaks Nothing major in here at all, and all have been in linux-next for a while with no reported issues" * tag 'driver-core-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (27 commits) docs: ABI: testing: sysfs-firmware-memmap: add some memmap types. devres: Enable trace events devres: No need to call remove_nodes() when there none present devres: Use list_for_each_safe_from() in remove_nodes() devres: Make locking straight forward in release_nodes() kernfs: move revalidate to be near lookup drivers/base: Constify static attribute_group structs firmware_loader: remove unneeded 'comma' macro devcoredump: remove contact information driver core: Drop helper devm_platform_ioremap_resource_wc() component: Rename 'dev' to 'parent' component: Drop 'dev' argument to component_match_realloc() device property: Don't check for NULL twice in the loops driver core: auxiliary bus: Fix typo in the docs drivers/base/node.c: make CACHE_ATTR define static DEVICE_ATTR_RO debugfs: remove return value of debugfs_create_ulong() debugfs: remove return value of debugfs_create_bool() scsi: snic: debugfs: remove local storage of debugfs files b43: don't save dentries for debugfs b43legacy: don't save dentries for debugfs ...
2021-06-15wl1251: Fix missing function name in commentsYang Shen1-4/+4
Fixes the following W=1 kernel build warning(s): drivers/net/wireless/ti/wl1251/cmd.c:15: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst drivers/net/wireless/ti/wl1251/cmd.c:62: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst drivers/net/wireless/ti/wl1251/cmd.c:103: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst drivers/net/wireless/ti/wl1251/cmd.c:141: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst Signed-off-by: Yang Shen <shenyang39@huawei.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20210517050141.61488-11-shenyang39@huawei.com
2021-06-15wl1251: Fix possible buffer overflow in wl1251_cmd_scanLee Gibson1-3/+6
Function wl1251_cmd_scan calls memcpy without checking the length. Harden by checking the length is within the maximum allowed size. Signed-off-by: Lee Gibson <leegib@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20210428115508.25624-1-leegib@gmail.com
2021-06-15wlcore: remove leading spaces before tabsHui Tang1-2/+2
There are a few leading spaces before tabs and remove it by running the following commard: $ find . -name '*.c' | xargs sed -r -i 's/^[ ]+\t/\t/' $ find . -name '*.h' | xargs sed -r -i 's/^[ ]+\t/\t/' Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Hui Tang <tanghui20@huawei.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/1621407345-10625-4-git-send-email-tanghui20@huawei.com
2021-06-15wlcore: Fix missing function name in commentsYang Shen1-3/+3
Fixes the following W=1 kernel build warning(s): drivers/net/wireless/ti/wlcore/cmd.c:824: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst drivers/net/wireless/ti/wlcore/cmd.c:853: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst drivers/net/wireless/ti/wlcore/cmd.c:882: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst Signed-off-by: Yang Shen <shenyang39@huawei.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20210517050141.61488-12-shenyang39@huawei.com
2021-06-14wlcore: fix read pointer updateRussell King1-8/+2
When reading the fw_log structure from the device's memory, we could race with the firmware updating the actual_buff_size and buff_write_ptr members of this structure. This would lead to bytes being dropped from the log. Fix this by writing back the actual - now fixed - clear_ptr which reflects where we read up to in the buffer. This also means that we must not check that the clear_ptr matches the current write pointer, so remove that check. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/E1lolvi-0003Ri-39@rmk-PC.armlinux.org.uk
2021-06-14wlcore: fix bug reading fwlogRussell King1-0/+2
With logging enabled, it has been observed that the driver spews messages such as: wlcore: ERROR Calculate of clear addr Clear = 204025b0, write = 204015b0 The problem occurs because 204025b0 is the end of the buffer, and 204015b0 is the beginning, and the calculation for "clear"ing the buffer does not take into account that if we read to the very end of the ring buffer, we are actually at the beginning of the buffer. Fix this. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/E1lolvc-0003RM-VE@rmk-PC.armlinux.org.uk
2021-06-14wlcore: make some of the fwlog calculations more obviousRussell King1-15/+28
Make some of the fwlog calculations more obvious by calculating bits that get used and documenting what they are. Validate the read pointer while we're at it to ensure we do not overflow the data block we have allocated and read. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/E1lolvX-0003R3-RE@rmk-PC.armlinux.org.uk
2021-06-14wlcore: tidy up use of fw_log.actual_buff_sizeRussell King1-10/+10
Tidy up the use of fw_log.actual_buff_size - rather than reading it multiple times and applying the endian conversion, read it once into actual_len and use that instead. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/E1lolvS-0003Ql-NJ@rmk-PC.armlinux.org.uk
2021-06-14wlcore/wl12xx: Fix wl12xx get_mac error if device is in ELPTony Lindgren1-0/+7
At least on wl12xx, reading the MAC after boot can fail with a warning at drivers/net/wireless/ti/wlcore/sdio.c:78 wl12xx_sdio_raw_read. The failed call comes from wl12xx_get_mac() that wlcore_nvs_cb() calls after request_firmware_work_func(). After the error, no wireless interface is created. Reloading the wl12xx module makes the interface work. Turns out the wlan controller can be in a low-power ELP state after the boot from the bootloader or kexec, and needs to be woken up first. Let's wake the hardware and add a sleep after that similar to wl12xx_pre_boot() is already doing. Note that a similar issue could exist for wl18xx, but I have not seen it so far. And a search for wl18xx_get_mac and wl12xx_sdio_raw_read did not produce similar errors. Cc: Carl Philipp Klemm <philipp@uvos.xyz> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20210603062814.19464-1-tony@atomide.com
2021-06-14wlcore: use DEVICE_ATTR_<RW|RO> macroYueHaibing1-13/+11
Use DEVICE_ATTR_<RW|RO> helper instead of plain DEVICE_ATTR, which makes the code a bit shorter and easier to read. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20210523033538.25568-1-yuehaibing@huawei.com
2021-05-13firmware: replace HOTPLUG with UEVENT in FW_ACTION definesShawn Guo1-1/+1
With commit 312c004d36ce ("[PATCH] driver core: replace "hotplug" by "uevent"") already in the tree over a decade, update the name of FW_ACTION defines to follow semantics, and reflect what the defines are really meant for, i.e. whether or not generate user space event. Acked-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Link: https://lore.kernel.org/r/20210425020024.28057-1-shawn.guo@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-04-22wlcore: Fix buffer overrun by snprintf due to incorrect buffer sizeColin Ian King1-1/+1
The size of the buffer than can be written to is currently incorrect, it is always the size of the entire buffer even though the snprintf is writing as position pos into the buffer. Fix this by setting the buffer size to be the number of bytes left in the buffer, namely sizeof(buf) - pos. Addresses-Coverity: ("Out-of-bounds access") Fixes: 7b0e2c4f6be3 ("wlcore: fix overlapping snprintf arguments in debugfs") Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20210419141405.180582-1-colin.king@canonical.com
2021-04-17wlcore: fix overlapping snprintf arguments in debugfsArnd Bergmann2-8/+12
gcc complains about undefined behavior in calling snprintf() with the same buffer as input and output: drivers/net/wireless/ti/wl18xx/debugfs.c: In function 'diversity_num_of_packets_per_ant_read': drivers/net/wireless/ti/wl18xx/../wlcore/debugfs.h:86:3: error: 'snprintf' argument 4 overlaps destination object 'buf' [-Werror=restrict] 86 | snprintf(buf, sizeof(buf), "%s[%d] = %d\n", \ | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 87 | buf, i, stats->sub.name[i]); \ | ~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/ti/wl18xx/debugfs.c:24:2: note: in expansion of macro 'DEBUGFS_FWSTATS_FILE_ARRAY' 24 | DEBUGFS_FWSTATS_FILE_ARRAY(a, b, c, wl18xx_acx_statistics) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/wireless/ti/wl18xx/debugfs.c:159:1: note: in expansion of macro 'WL18XX_DEBUGFS_FWSTATS_FILE_ARRAY' 159 | WL18XX_DEBUGFS_FWSTATS_FILE_ARRAY(diversity, num_of_packets_per_ant, There are probably other ways of handling the debugfs file, without using on-stack buffers, but a simple workaround here is to remember the current position in the buffer and just keep printing in there. Fixes: bcca1bbdd412 ("wlcore: add debugfs macro to help print fw statistics arrays") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20210323125723.1961432-1-arnd@kernel.org
2021-02-08wl1251: cmd: remove redundant assignmentwengjianfeng1-24/+12
-ENOMEM has been used as a return value,it is not necessary to assign it, and if kzalloc fail,not need free it,so just return -ENOMEM when kzalloc fail. Signed-off-by: wengjianfeng <wengjianfeng@yulong.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20210203060306.2832-1-samirweng1979@163.com
2021-01-25wlcore: Fix command execute failure 19 for wl12xxTony Lindgren3-20/+1
We can currently get a "command execute failure 19" error on beacon loss if the signal is weak: wlcore: Beacon loss detected. roles:0xff wlcore: Connection loss work (role_id: 0). ... wlcore: ERROR command execute failure 19 ... WARNING: CPU: 0 PID: 1552 at drivers/net/wireless/ti/wlcore/main.c:803 ... (wl12xx_queue_recovery_work.part.0 [wlcore]) (wl12xx_cmd_role_start_sta [wlcore]) (wl1271_op_bss_info_changed [wlcore]) (ieee80211_prep_connection [mac80211]) Error 19 is defined as CMD_STATUS_WRONG_NESTING from the wlcore firmware, and seems to mean that the firmware no longer wants to see the quirk handling for WLCORE_QUIRK_START_STA_FAILS done. This quirk got added with commit 18eab430700d ("wlcore: workaround start_sta problem in wl12xx fw"), and it seems that this already got fixed in the firmware long time ago back in 2012 as wl18xx never had this quirk in place to start with. As we no longer even support firmware that early, to me it seems that it's safe to just drop WLCORE_QUIRK_START_STA_FAILS to fix the error. Looks like earlier firmware got disabled back in 2013 with commit 0e284c074ef9 ("wl12xx: increase minimum singlerole firmware version required"). If it turns out we still need WLCORE_QUIRK_START_STA_FAILS with any firmware that the driver works with, we can simply revert this patch and add extra checks for firmware version used. With this fix wlcore reconnects properly after a beacon loss. Cc: Raz Bouganim <r-bouganim@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20210115065613.7731-1-tony@atomide.com
2021-01-14wlcore: Downgrade exceeded max RX BA sessions to debugTony Lindgren1-1/+1
We can get the following in the logs every few minutes or so: wlcore: ERROR exceeded max RX BA sessions Let's downgrade the message to a debug message as suggested by the TI support folks at: https://e2e.ti.com/support/wireless-connectivity/wifi/f/968/p/352435/1244754 "The WL127x firmware supports max of 3 BA sessions. It cannot be increased. I think the problem here is the peer trying to initiate a 4th BA session (ADDBA request)." Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20210101065955.63386-1-tony@atomide.com
2020-12-02wl1251: remove trailing semicolon in macro definitionTom Rix1-1/+1
The macro use will already have a semicolon. Signed-off-by: Tom Rix <trix@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20201127180835.2769297-1-trix@redhat.com
2020-12-02wlcore: Switch to using the new API kobj_to_dev()Tian Tao1-1/+1
Switch to using the new API kobj_to_dev(). Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/1606096062-32251-1-git-send-email-tiantao6@hisilicon.com