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path: root/drivers/net/wireless/intel/iwlegacy/common.c
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2022-12-14wifi: iwlegacy: common: don't call dev_kfree_skb() under spin_lock_irqsave()Yang Yingliang1-2/+2
It is not allowed to call consume_skb() from hardware interrupt context or with interrupts being disabled. So replace dev_kfree_skb() with dev_consume_skb_irq() under spin_lock_irqsave(). Compile tested only. Fixes: 4bc85c1324aa ("Revert "iwlwifi: split the drivers for agn and legacy devices 3945/4965"") Signed-off-by: Yang Yingliang <[email protected]> Acked-by: Stanislaw Gruszka <[email protected]> Signed-off-by: Kalle Valo <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2022-09-06wifi: mac80211: make smps_mode per-linkBenjamin Berg1-4/+4
The SMPS power save mode needs to be per-link rather than being shared for all links. As such, move it into struct ieee80211_link_sta. Signed-off-by: Benjamin Berg <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2022-07-18wifi: iwlegacy: fix repeated words in commentsJilin Yuan1-1/+1
Delete the redundant words 'to' and 'if'. Signed-off-by: Jilin Yuan <[email protected]> Signed-off-by: Kalle Valo <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2022-07-15wifi: mac80211: change QoS settings API to take link into accountJohannes Berg1-1/+2
Take the link into account in the QoS settings (EDCA parameters) APIs. Signed-off-by: Johannes Berg <[email protected]>
2022-06-20wifi: mac80211: return a beacon for a specific linkShaul Triebitz1-1/+1
Pass the link id through to the get_beacon and return the beacon for a specific link id. Signed-off-by: Shaul Triebitz <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2022-06-20wifi: mac80211: split bss_info_changed methodJohannes Berg1-3/+3
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 <[email protected]>
2022-06-20wifi: mac80211: move interface config to new structJohannes Berg1-5/+5
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 <[email protected]>
2022-04-11mac80211: prepare sta handling for MLO supportSriram R1-3/+3
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 <[email protected]> Link: https://lore.kernel.org/r/[email protected] [remove MLO-drivers notes from commit message, not clear yet; run spatch] Signed-off-by: Johannes Berg <[email protected]>
2021-08-29intel: switch from 'pci_' to 'dma_' APIChristophe JAILLET1-10/+9
The wrappers in include/linux/pci-dma-compat.h should go away. The patch has been generated with the coccinelle script below. It has been hand modified to use 'dma_set_mask_and_coherent()' instead of 'pci_set_dma_mask()/pci_set_consistent_dma_mask()' when applicable. This is less verbose. It has been compile tested. @@ @@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@ @@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@ @@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@ @@ - PCI_DMA_NONE + DMA_NONE @@ expression e1, e2, e3; @@ - pci_alloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3; @@ - pci_zalloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3, e4; @@ - pci_free_consistent(e1, e2, e3, e4) + dma_free_coherent(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_single(e1, e2, e3, e4) + dma_map_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_single(e1, e2, e3, e4) + dma_unmap_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4, e5; @@ - pci_map_page(e1, e2, e3, e4, e5) + dma_map_page(&e1->dev, e2, e3, e4, e5) @@ expression e1, e2, e3, e4; @@ - pci_unmap_page(e1, e2, e3, e4) + dma_unmap_page(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_sg(e1, e2, e3, e4) + dma_map_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_sg(e1, e2, e3, e4) + dma_unmap_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_cpu(e1, e2, e3, e4) + dma_sync_single_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_device(e1, e2, e3, e4) + dma_sync_single_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_cpu(e1, e2, e3, e4) + dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_device(e1, e2, e3, e4) + dma_sync_sg_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2; @@ - pci_dma_mapping_error(e1, e2) + dma_mapping_error(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_dma_mask(e1, e2) + dma_set_mask(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_consistent_dma_mask(e1, e2) + dma_set_coherent_mask(&e1->dev, e2) Signed-off-by: Christophe JAILLET <[email protected]> Signed-off-by: Kalle Valo <[email protected]> Link: https://lore.kernel.org/r/f55043d0c847bfae60087707778563cf732a7bf9.1629619229.git.christophe.jaillet@wanadoo.fr
2021-04-11iwlegacy: avoid -Wempty-body warningArnd Bergmann1-2/+0
There are a couple of warnings in this driver when building with W=1: drivers/net/wireless/intel/iwlegacy/common.c: In function 'il_power_set_mode': drivers/net/wireless/intel/iwlegacy/common.c:1195:60: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body] 1195 | il->chain_noise_data.state); | ^ drivers/net/wireless/intel/iwlegacy/common.c: In function 'il_do_scan_abort': drivers/net/wireless/intel/iwlegacy/common.c:1343:57: error: suggest braces around empty body in an 'else' statement [-Werror=empty-body] Change the empty debug macros to no_printk(), which avoids the warnings and adds useful format string checks. Signed-off-by: Arnd Bergmann <[email protected]> Acked-by: Stanislaw Gruszka <[email protected]> Signed-off-by: Kalle Valo <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-08-27iwlegacy: Use fallthrough pseudo-keywordGustavo A. R. Silva1-2/+2
Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <[email protected]> Signed-off-by: Kalle Valo <[email protected]> Link: https://lore.kernel.org/r/20200821063934.GA17838@embeddedor
2020-08-27iwlegacy: common: Demote kerneldoc headers to standard comment blocksLee Jones1-35/+33
Almost all of the headers in this file fail to reach the standards required by kernel-doc and no "kernel-doc::" references are made to it from the kernel's Documentation. Fixes the following W=1 kernel build warning(s): drivers/net/wireless/intel/iwlegacy/common.c: In function ‘il_enqueue_hcmd’: drivers/net/wireless/intel/iwlegacy/common.c:3126:6: warning: variable ‘len’ set but not used [-Wunused-but-set-variable] drivers/net/wireless/intel/iwlegacy/common.c:697: warning: Function parameter or member 'il' not described in 'il_eeprom_init' drivers/net/wireless/intel/iwlegacy/common.c:848: warning: Function parameter or member 'il' not described in 'il_mod_ht40_chan_info' drivers/net/wireless/intel/iwlegacy/common.c:848: warning: Function parameter or member 'band' not described in 'il_mod_ht40_chan_info' drivers/net/wireless/intel/iwlegacy/common.c:848: warning: Function parameter or member 'channel' not described in 'il_mod_ht40_chan_info' drivers/net/wireless/intel/iwlegacy/common.c:848: warning: Function parameter or member 'eeprom_ch' not described in 'il_mod_ht40_chan_info' drivers/net/wireless/intel/iwlegacy/common.c:848: warning: Function parameter or member 'clear_ht40_extension_channel' not described in 'il_mod_ht40_chan_info' drivers/net/wireless/intel/iwlegacy/common.c:885: warning: Function parameter or member 'il' not described in 'il_init_channel_map' drivers/net/wireless/intel/iwlegacy/common.c:1035: warning: Function parameter or member 'il' not described in 'il_get_channel_info' drivers/net/wireless/intel/iwlegacy/common.c:1035: warning: Function parameter or member 'band' not described in 'il_get_channel_info' drivers/net/wireless/intel/iwlegacy/common.c:1035: warning: Function parameter or member 'channel' not described in 'il_get_channel_info' drivers/net/wireless/intel/iwlegacy/common.c:1351: warning: Function parameter or member 'il' not described in 'il_scan_cancel' drivers/net/wireless/intel/iwlegacy/common.c:1365: warning: Function parameter or member 'il' not described in 'il_scan_cancel_timeout' drivers/net/wireless/intel/iwlegacy/common.c:1617: warning: Function parameter or member 'il' not described in 'il_fill_probe_req' drivers/net/wireless/intel/iwlegacy/common.c:1617: warning: Function parameter or member 'frame' not described in 'il_fill_probe_req' drivers/net/wireless/intel/iwlegacy/common.c:1617: warning: Function parameter or member 'ta' not described in 'il_fill_probe_req' drivers/net/wireless/intel/iwlegacy/common.c:1617: warning: Function parameter or member 'ies' not described in 'il_fill_probe_req' drivers/net/wireless/intel/iwlegacy/common.c:1617: warning: Function parameter or member 'ie_len' not described in 'il_fill_probe_req' drivers/net/wireless/intel/iwlegacy/common.c:1617: warning: Function parameter or member 'left' not described in 'il_fill_probe_req' drivers/net/wireless/intel/iwlegacy/common.c:1924: warning: Function parameter or member 'il' not described in 'il_prep_station' drivers/net/wireless/intel/iwlegacy/common.c:1924: warning: Function parameter or member 'addr' not described in 'il_prep_station' drivers/net/wireless/intel/iwlegacy/common.c:1924: warning: Function parameter or member 'is_ap' not described in 'il_prep_station' drivers/net/wireless/intel/iwlegacy/common.c:1924: warning: Function parameter or member 'sta' not described in 'il_prep_station' drivers/net/wireless/intel/iwlegacy/common.c:2009: warning: Function parameter or member 'il' not described in 'il_add_station_common' drivers/net/wireless/intel/iwlegacy/common.c:2009: warning: Function parameter or member 'addr' not described in 'il_add_station_common' drivers/net/wireless/intel/iwlegacy/common.c:2009: warning: Function parameter or member 'is_ap' not described in 'il_add_station_common' drivers/net/wireless/intel/iwlegacy/common.c:2009: warning: Function parameter or member 'sta' not described in 'il_add_station_common' drivers/net/wireless/intel/iwlegacy/common.c:2009: warning: Function parameter or member 'sta_id_r' not described in 'il_add_station_common' drivers/net/wireless/intel/iwlegacy/common.c:2070: warning: Function parameter or member 'il' not described in 'il_sta_ucode_deactivate' drivers/net/wireless/intel/iwlegacy/common.c:2070: warning: Function parameter or member 'sta_id' not described in 'il_sta_ucode_deactivate' drivers/net/wireless/intel/iwlegacy/common.c:2144: warning: Function parameter or member 'il' not described in 'il_remove_station' drivers/net/wireless/intel/iwlegacy/common.c:2144: warning: Function parameter or member 'sta_id' not described in 'il_remove_station' drivers/net/wireless/intel/iwlegacy/common.c:2144: warning: Function parameter or member 'addr' not described in 'il_remove_station' drivers/net/wireless/intel/iwlegacy/common.c:2205: warning: Function parameter or member 'il' not described in 'il_clear_ucode_stations' drivers/net/wireless/intel/iwlegacy/common.c:2237: warning: Function parameter or member 'il' not described in 'il_restore_stations' drivers/net/wireless/intel/iwlegacy/common.c:2372: warning: Function parameter or member 'il' not described in 'il_is_lq_table_valid' drivers/net/wireless/intel/iwlegacy/common.c:2372: warning: Function parameter or member 'lq' not described in 'il_is_lq_table_valid' drivers/net/wireless/intel/iwlegacy/common.c:2401: warning: Function parameter or member 'il' not described in 'il_send_lq_cmd' drivers/net/wireless/intel/iwlegacy/common.c:2401: warning: Function parameter or member 'lq' not described in 'il_send_lq_cmd' drivers/net/wireless/intel/iwlegacy/common.c:2401: warning: Function parameter or member 'flags' not described in 'il_send_lq_cmd' drivers/net/wireless/intel/iwlegacy/common.c:2539: warning: Function parameter or member 'q' not described in 'il_rx_queue_space' drivers/net/wireless/intel/iwlegacy/common.c:2556: warning: Function parameter or member 'il' not described in 'il_rx_queue_update_write_ptr' drivers/net/wireless/intel/iwlegacy/common.c:2556: warning: Function parameter or member 'q' not described in 'il_rx_queue_update_write_ptr' drivers/net/wireless/intel/iwlegacy/common.c:2711: warning: Function parameter or member 'il' not described in 'il_txq_update_write_ptr' drivers/net/wireless/intel/iwlegacy/common.c:2711: warning: Function parameter or member 'txq' not described in 'il_txq_update_write_ptr' drivers/net/wireless/intel/iwlegacy/common.c:2751: warning: Function parameter or member 'il' not described in 'il_tx_queue_unmap' drivers/net/wireless/intel/iwlegacy/common.c:2751: warning: Function parameter or member 'txq_id' not described in 'il_tx_queue_unmap' drivers/net/wireless/intel/iwlegacy/common.c:2775: warning: Function parameter or member 'il' not described in 'il_tx_queue_free' drivers/net/wireless/intel/iwlegacy/common.c:2775: warning: Function parameter or member 'txq_id' not described in 'il_tx_queue_free' drivers/net/wireless/intel/iwlegacy/common.c:2775: warning: Excess function parameter 'txq' description in 'il_tx_queue_free' drivers/net/wireless/intel/iwlegacy/common.c:2813: warning: Function parameter or member 'il' not described in 'il_cmd_queue_unmap' drivers/net/wireless/intel/iwlegacy/common.c:2856: warning: Function parameter or member 'il' not described in 'il_cmd_queue_free' drivers/net/wireless/intel/iwlegacy/common.c:2856: warning: Excess function parameter 'txq' description in 'il_cmd_queue_free' drivers/net/wireless/intel/iwlegacy/common.c:2932: warning: Function parameter or member 'il' not described in 'il_queue_init' drivers/net/wireless/intel/iwlegacy/common.c:2932: warning: Function parameter or member 'q' not described in 'il_queue_init' drivers/net/wireless/intel/iwlegacy/common.c:2932: warning: Function parameter or member 'slots' not described in 'il_queue_init' drivers/net/wireless/intel/iwlegacy/common.c:2932: warning: Function parameter or member 'id' not described in 'il_queue_init' drivers/net/wireless/intel/iwlegacy/common.c:2966: warning: Function parameter or member 'il' not described in 'il_tx_queue_alloc' drivers/net/wireless/intel/iwlegacy/common.c:2966: warning: Function parameter or member 'txq' not described in 'il_tx_queue_alloc' drivers/net/wireless/intel/iwlegacy/common.c:2966: warning: Function parameter or member 'id' not described in 'il_tx_queue_alloc' drivers/net/wireless/intel/iwlegacy/common.c:3006: warning: Function parameter or member 'il' not described in 'il_tx_queue_init' drivers/net/wireless/intel/iwlegacy/common.c:3006: warning: Function parameter or member 'txq_id' not described in 'il_tx_queue_init' drivers/net/wireless/intel/iwlegacy/common.c:3245: warning: Function parameter or member 'il' not described in 'il_hcmd_queue_reclaim' drivers/net/wireless/intel/iwlegacy/common.c:3245: warning: Function parameter or member 'txq_id' not described in 'il_hcmd_queue_reclaim' drivers/net/wireless/intel/iwlegacy/common.c:3245: warning: Function parameter or member 'idx' not described in 'il_hcmd_queue_reclaim' drivers/net/wireless/intel/iwlegacy/common.c:3245: warning: Function parameter or member 'cmd_idx' not described in 'il_hcmd_queue_reclaim' drivers/net/wireless/intel/iwlegacy/common.c:3279: warning: Function parameter or member 'il' not described in 'il_tx_cmd_complete' drivers/net/wireless/intel/iwlegacy/common.c:3425: warning: Function parameter or member 'il' not described in 'il_init_geos' drivers/net/wireless/intel/iwlegacy/common.c:3949: warning: bad line: drivers/net/wireless/intel/iwlegacy/common.c:3955: warning: Function parameter or member 'il' not described in 'il_set_rxon_channel' drivers/net/wireless/intel/iwlegacy/common.c:4154: warning: Function parameter or member 'il' not described in 'il_irq_handle_error' drivers/net/wireless/intel/iwlegacy/common.c:5019: warning: Function parameter or member 'hw' not described in 'il_mac_config' drivers/net/wireless/intel/iwlegacy/common.c:5019: warning: Function parameter or member 'changed' not described in 'il_mac_config' Cc: Stanislaw Gruszka <[email protected]> Cc: Kalle Valo <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: Jakub Kicinski <[email protected]> Cc: Linux Wireless <[email protected]> Cc: [email protected] Cc: [email protected] Signed-off-by: Lee Jones <[email protected]> Signed-off-by: Kalle Valo <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-08-27iwlegacy: common: Remove set but not used variable 'len'Lee Jones1-4/+0
Fixes the following W=1 kernel build warning(s): drivers/net/wireless/intel/iwlegacy/common.c: In function ‘il_enqueue_hcmd’: drivers/net/wireless/intel/iwlegacy/common.c:3126:6: warning: variable ‘len’ set but not used [-Wunused-but-set-variable] Cc: Stanislaw Gruszka <[email protected]> Cc: Kalle Valo <[email protected]> Cc: "David S. Miller" <[email protected]> Cc: Jakub Kicinski <[email protected]> Cc: Linux Wireless <[email protected]> Cc: [email protected] Cc: [email protected] Signed-off-by: Lee Jones <[email protected]> Signed-off-by: Kalle Valo <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-07-15iwlegacy: Check the return value of pcie_capability_read_*()Bolarinwa Olayemi Saheed1-2/+2
On failure pcie_capability_read_dword() sets it's last parameter, val to 0. However, with Patch 14/14, it is possible that val is set to ~0 on failure. This would introduce a bug because (x & x) == (~0 & x). This bug can be avoided without changing the function's behaviour if the return value of pcie_capability_read_dword is checked to confirm success. Check the return value of pcie_capability_read_dword() to ensure success. Suggested-by: Bjorn Helgaas <[email protected]> Signed-off-by: Bolarinwa Olayemi Saheed <[email protected]> Signed-off-by: Kalle Valo <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-01-26iwlegacy: ensure loop counter addr does not wrap and cause an infinite loopColin Ian King1-1/+1
The loop counter addr is a u16 where as the upper limit of the loop is an int. In the unlikely event that the il->cfg->eeprom_size is greater than 64K then we end up with an infinite loop since addr will wrap around an never reach upper loop limit. Fix this by making addr an int. Addresses-Coverity: ("Infinite loop") Fixes: be663ab67077 ("iwlwifi: split the drivers for agn and legacy devices 3945/4965") Signed-off-by: Colin Ian King <[email protected]> Acked-by: Stanislaw Gruszka <[email protected]> Signed-off-by: Kalle Valo <[email protected]>
2019-10-15net/wireless: Delete unnecessary checks before the macro call ↵Markus Elfring1-6/+2
“dev_kfree_skb” The dev_kfree_skb() function performs also input parameter validation. Thus the test around the shown calls is not needed. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <[email protected]> Signed-off-by: Kalle Valo <[email protected]>
2019-10-09iwlegacy: make array interval static, makes object smallerColin Ian King1-1/+1
Don't populate the array interval on the stack but instead make it static. Makes the object code smaller by 121 bytes. Before: text data bss dec hex filename 167797 29676 448 197921 30521 wireless/intel/iwlegacy/common.o After: text data bss dec hex filename 167580 29772 448 197800 304a8 wireless/intel/iwlegacy/common.o (gcc version 9.2.1, amd64) Signed-off-by: Colin Ian King <[email protected]> Signed-off-by: Kalle Valo <[email protected]>
2019-08-06iwlegacy: Use dev_get_drvdata where possibleChuhong Yuan1-2/+1
Instead of using to_pci_dev + pci_get_drvdata, use dev_get_drvdata to make code simpler. Signed-off-by: Chuhong Yuan <[email protected]> Signed-off-by: Kalle Valo <[email protected]>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 183Thomas Gleixner1-19/+1
Based on 1 normalized pattern(s): gpl license summary [copyright] [c] [2008] [2011] [intel] [corporation] [all] [rights] [reserved] this program is free software you can redistribute it and or modify it under the terms of version 2 of the gnu general public license as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin street fifth floor boston ma 02110 usa the full gnu general public license is included in this distribution in the file called license gpl extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 5 file(s). Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Richard Fontana <[email protected]> Reviewed-by: Steve Winslow <[email protected]> Reviewed-by: Alexios Zavras <[email protected]> Reviewed-by: Allison Randal <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2018-11-06iwlegacy: common: mark expected switch fall-throughsGustavo A. R. Silva1-0/+2
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Addresses-Coverity-ID: 201384 ("Missing break in switch") Signed-off-by: Gustavo A. R. Silva <[email protected]> Signed-off-by: Kalle Valo <[email protected]>
2018-06-12treewide: kzalloc() -> kcalloc()Kees Cook1-6/+7
The kzalloc() function has a 2-factor argument form, kcalloc(). This patch replaces cases of: kzalloc(a * b, gfp) with: kcalloc(a * b, gfp) as well as handling cases of: kzalloc(a * b * c, gfp) with: kzalloc(array3_size(a, b, c), gfp) as it's slightly less ugly than: kzalloc_array(array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: kzalloc(4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( kzalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | kzalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( kzalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(char) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | kzalloc( - sizeof(u8) * COUNT + COUNT , ...) | kzalloc( - sizeof(__u8) * COUNT + COUNT , ...) | kzalloc( - sizeof(char) * COUNT + COUNT , ...) | kzalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - kzalloc + kcalloc ( - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ - kzalloc + kcalloc ( - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( kzalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kzalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kzalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( kzalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kzalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kzalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | kzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( kzalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kzalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( kzalloc(C1 * C2 * C3, ...) | kzalloc( - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | kzalloc( - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | kzalloc( - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | kzalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( kzalloc(sizeof(THING) * C2, ...) | kzalloc(sizeof(TYPE) * C2, ...) | kzalloc(C1 * C2 * C3, ...) | kzalloc(C1 * C2, ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - kzalloc + kcalloc ( - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - kzalloc + kcalloc ( - (E1) * E2 + E1, E2 , ...) | - kzalloc + kcalloc ( - (E1) * (E2) + E1, E2 , ...) | - kzalloc + kcalloc ( - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <[email protected]>
2018-03-27wireless: Use octal not symbolic permissionsJoe Perches1-2/+2
Prefer the direct use of octal for permissions. Done with checkpatch -f --types=SYMBOLIC_PERMS --fix-inplace and some typing. Miscellanea: o Whitespace neatening around these conversions. Signed-off-by: Joe Perches <[email protected]> Signed-off-by: Kalle Valo <[email protected]>
2017-10-27iwlegacy: Convert timers to use timer_setup()Kees Cook1-2/+2
In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Cc: Kalle Valo <[email protected]> Cc: Stanislaw Gruszka <[email protected]> Cc: [email protected] Cc: [email protected] Signed-off-by: Kees Cook <[email protected]> Signed-off-by: Kalle Valo <[email protected]>
2017-05-24iwlegacy: warn when enabling power saveStanislaw Gruszka1-0/+2
iwlegacy firmware can crash when power save is configured. PS was allowed in "dbdac2b iwlegacy: properly enable power saving" with belive that user who enable PS is aware of that and can relate firmware crahes with PS. However some distributions seems to enable PS without user intervention, so warn about that. Signed-off-by: Stanislaw Gruszka <[email protected]> Signed-off-by: Kalle Valo <[email protected]>
2016-07-06mac80211: Add support for beacon report radio measurementAvraham Stern1-1/+5
Add the following to support beacon report radio measurement with the measurement mode field set to passive or active: 1. Propagate the required scan duration to the device 2. Report the scan start time (in terms of TSF) 3. Report each BSS's detection time (also in terms of TSF) TSF times refer to the BSS that the interface that requested the scan is connected to. Signed-off-by: Assaf Krauss <[email protected]> Signed-off-by: Avraham Stern <[email protected]> [changed ath9k/10k, at76c59x-usb, iwlegacy, wl1251 and wlcore to match the new API] Signed-off-by: Luca Coelho <[email protected]> Signed-off-by: Johannes Berg <[email protected]>
2016-04-12cfg80211: remove enum ieee80211_bandJohannes Berg1-35/+35
This enum is already perfectly aliased to enum nl80211_band, and the only reason for it is that we get IEEE80211_NUM_BANDS out of it. There's no really good reason to not declare the number of bands in nl80211 though, so do that and remove the cfg80211 one. Signed-off-by: Johannes Berg <[email protected]>
2016-04-07iwl4965: Fix a null pointer dereference in il_tx_queue_free and ↵Jia-Ju Bai1-4/+10
il_cmd_queue_free If "txq->cmd = kzalloc(...)" in il_tx_queue_init fails, "kfree(txq->cmd[i])" in il_tx_queue_free and il_cmd_queue_free in iwl4965_hw_txq_ctx_free will causes a null pointer dereference, because txq->cmd is NULL at that time. This patch fixes this problem by adding a if-check before kfree. To avoid double free in il_tx_queue_free and il_cmd_queue_free caused by the fixing, txq->meta and txq->cmd in error handling code of il_tx_queue_init are assigned null values. Otherwise, a double free will occur. This patch has been tested in real device, and it actually fixes the bug. Thanks Stanislaw for his suggestion. Signed-off-by: Jia-Ju Bai <[email protected]> Acked-by: Stanislaw Gruszka <[email protected]> Signed-off-by: Julian Calaby <[email protected]> Signed-off-by: Kalle Valo <[email protected]>
2016-04-07iwlegacy: Return directly if allocation fails in il_eeprom_init()Markus Elfring1-5/+3
Also remove an unused label. Signed-off-by: Markus Elfring <[email protected]> Acked-by: Stanislaw Gruszka <[email protected]> [Rewrote commit message] Signed-off-by: Julian Calaby <[email protected]> Signed-off-by: Kalle Valo <[email protected]>
2015-12-11iwlegacy: mark il_adjust_beacon_interval as noinlineArnd Bergmann1-1/+1
With the new optimized do_div() code, some versions of gcc produce obviously incorrect code that leads to a link error in iwlegacy/common.o: drivers/built-in.o: In function `il_send_rxon_timing': :(.text+0xa6b4d4): undefined reference to `____ilog2_NaN' :(.text+0xa6b4f0): undefined reference to `__aeabi_uldivmod' In a few thousand randconfig builds, I have seen this problem a couple of times in this file, but never anywhere else in the kernel, so we can try to work around this in the only file that shows the behavior, by marking the il_adjust_beacon_interval function as noinline, which convinces gcc to use the unoptimized do_div() all the time. Signed-off-by: Arnd Bergmann <[email protected]> Acked-by: Nicolas Pitre <[email protected]> Acked-by: Stanislaw Gruszka <[email protected]> Signed-off-by: Kalle Valo <[email protected]>
2015-12-11iwlegacy: cleanup end of il_send_add_sta()Dan Carpenter1-6/+6
This code causes a static checker warning because we check for "if (ret == 0)" but we have already had verified that was true. Clean it up a little. Signed-off-by: Dan Carpenter <[email protected]> Acked-by: Stanislaw Gruszka <[email protected]> Signed-off-by: Kalle Valo <[email protected]>
2015-11-18iwlegacy: move under intel directoryKalle Valo1-0/+5586
Part of reorganising wireless drivers directory and Kconfig. Signed-off-by: Kalle Valo <[email protected]>
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