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17109e9783
When connecting without first doing a scan, the BSS list is empty and __cfg80211_connect_result() generates this warning: $ iw dev wlan0 connect -w VirtWifi [ 15.371989] ------------[ cut here ]------------ [ 15.372179] WARNING: CPU: 0 PID: 92 at net/wireless/sme.c:756 __cfg80211_connect_result+0x402/0x440 [ 15.372383] CPU: 0 PID: 92 Comm: kworker/u2:2 Not tainted 5.13.0-kvm #444 [ 15.372512] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-3.fc34 04/01/2014 [ 15.372597] Workqueue: cfg80211 cfg80211_event_work [ 15.372756] RIP: 0010:__cfg80211_connect_result+0x402/0x440 [ 15.372818] Code: 48 2b 04 25 28 00 00 00 75 59 48 8b 3b 48 8b 76 10 48 8d 65 e0 5b 41 5c 41 5d 41 5e 5d 49 8d 65 f0 41 5d e9 d0 d4 fd ff 0f 0b <0f> 0b e9 f6 fd ff ff e8 f2 4a b4 ff e9 ec fd ff ff 0f 0b e9 19 fd [ 15.372966] RSP: 0018:ffffc900005cbdc0 EFLAGS: 00010246 [ 15.373022] RAX: 0000000000000000 RBX: ffff8880028e2400 RCX: ffff8880028e2472 [ 15.373088] RDX: 0000000000000002 RSI: 00000000fffffe01 RDI: ffffffff815335ba [ 15.373149] RBP: ffffc900005cbe00 R08: 0000000000000008 R09: ffff888002bdf8b8 [ 15.373209] R10: ffff88803ec208f0 R11: ffffffffffffe9ae R12: ffff88801d687d98 [ 15.373280] R13: ffff88801b5fe000 R14: ffffc900005cbdc0 R15: dead000000000100 [ 15.373330] FS: 0000000000000000(0000) GS:ffff88803ec00000(0000) knlGS:0000000000000000 [ 15.373382] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 15.373425] CR2: 000056421c468958 CR3: 000000001b458001 CR4: 0000000000170eb0 [ 15.373478] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 15.373529] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 15.373580] Call Trace: [ 15.373611] ? cfg80211_process_wdev_events+0x10e/0x170 [ 15.373743] cfg80211_process_wdev_events+0x10e/0x170 [ 15.373783] cfg80211_process_rdev_events+0x21/0x40 [ 15.373846] cfg80211_event_work+0x20/0x30 [ 15.373892] process_one_work+0x1e9/0x340 [ 15.373956] worker_thread+0x4b/0x3f0 [ 15.374017] ? process_one_work+0x340/0x340 [ 15.374053] kthread+0x11f/0x140 [ 15.374089] ? set_kthread_struct+0x30/0x30 [ 15.374153] ret_from_fork+0x1f/0x30 [ 15.374187] ---[ end trace 321ef0cb7e9c0be1 ]--- wlan0 (phy #0): connected to 00:00:00:00:00:00 Add the fake bss just before the connect so that cfg80211_get_bss() finds the virtual network. As some code was duplicated, move it in a common function. Signed-off-by: Matteo Croce <mcroce@microsoft.com> Link: https://lore.kernel.org/r/20210706154423.11065-1-mcroce@linux.microsoft.com Signed-off-by: Johannes Berg <johannes.berg@intel.com> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.