Since the page offset can be greater than the size of a page fix
arm_coherent_iommu_map_page so that it maps to nearest page
boundary.
This both prevents unnecessarily mapping memory we don’t need to
map and fixes a bug where the unmap wasn’t unmapping this extra
memory.
Change-Id: Iaa69aff7505ee75d1f2e69bb0cda814bc6211bd3
Signed-off-by: Liam Mark <lmark@codeaurora.org>
This exports a new cfg80211_stop_iface() function.
This is intended for driver internal interface
combination management and channel switching.
Due to locking issues (it re-enters driver) the
call is asynchronous and uses cfg80211 event
list/worker.
CRs-Fixed: 1114710
Change-Id: I2784dc34b6a20fbe8697473e37cacf8edd35deca
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git
Git-commit: f04c22033c
[rsirasan@codeaurora.org: Resolved merge conflicts]
Signed-off-by: Rajeev Kumar Sirasanagandla <rsirasan@codeaurora.org>
Qualcomm Technologies Inc vendor specific wlan driver (qcacld-3.0)
internally supports wow mode and is enabled by default.
Currently, cfg80211 subsystem and wpa_supplicant is not aware of
qcacld-3.0 internal support for wowlan, due to which wpa_supplicant
is issuing disconnect on suspend, resulting in wowlan failure.
To fix this, avoid disconnect on suspend.
CRs-Fixed: 2001614
Change-Id: I8e369fe61fd2715d2de9dcfb637ebb53f044b501
Signed-off-by: Rajeev Kumar Sirasanagandla <rsirasan@codeaurora.org>
Below is the synchronization issue between unmount and kjournald2
contexts, which results into use after free issue in kjournald2().
Fix this issue by using journal->j_state_lock to synchronize the
wait_event() done in journal_kill_thread() and the wake_up() done
in kjournald2().
TASK 1:
umount cmd:
|--jbd2_journal_destroy() {
|--journal_kill_thread() {
write_lock(&journal->j_state_lock);
journal->j_flags |= JBD2_UNMOUNT;
...
write_unlock(&journal->j_state_lock);
wake_up(&journal->j_wait_commit); TASK 2 wakes up here:
kjournald2() {
...
checks JBD2_UNMOUNT flag and calls goto end-loop;
...
end_loop:
write_unlock(&journal->j_state_lock);
journal->j_task = NULL; --> If this thread gets
pre-empted here, then TASK 1 wait_event will
exit even before this thread is completely
done.
wait_event(journal->j_wait_done_commit, journal->j_task == NULL);
...
write_lock(&journal->j_state_lock);
write_unlock(&journal->j_state_lock);
}
|--kfree(journal);
}
}
wake_up(&journal->j_wait_done_commit); --> this step
now results into use after free issue.
}
Change-Id: I7487aff6f946544cfcfc38a9f28769be762e3969
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
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.
CRs-Fixed: 1114636
Change-Id: I6f2265a65dd47e3b127ba6236e4c9cf7ba77fc09
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git
Git-commit: 8125696991
[rsirasan@codeaurora.org: Resolved merge conflicts]
Signed-off-by: Rajeev Kumar Sirasanagandla <rsirasan@codeaurora.org>
Locking ION buffer should not fail, print error message if it happens.
Signed-off-by: Amir Samuelov <amirs@codeaurora.org>
Change-Id: Ic67f69daa646712dd814f29d5aa0fc68386177e1
Use correct method to connect to static processes as the existing
method was used for dynamic process creation.
Change-Id: Id7f631560edd9b8e4e970baecdda50f7804991bd
Acked-by: Ashwini Patil <aapatil@qti.qualcomm.com>
Signed-off-by: Sathish Ambley <sathishambley@codeaurora.org>
Do not close MHI channels when usb is disconnected and a process
is running in memory device mode.
Change-Id: I043fc25542e432a9fa294d4f433945718b2e5878
Signed-off-by: Sreelakshmi Gownipalli <sgownipa@codeaurora.org>
Add route map and mix controls to support 4 digital mics
in SDM660 internal codec.
Change-Id: Ida16a910961d01a57d7d03dd64b61ecd36bad37d
Signed-off-by: Laxminath Kasam <lkasam@codeaurora.org>
During ramdump collection we assign memory to HLOS from subsystem for
non-secure pil. Whether ramdump collection is successful or not, we
should assign memory back to subsystem. This is to avoid access
violations in powerup path which happens after ramdump.
CRs-Fixed: 2002073
Change-Id: I7f1d42aebb44464fe077ca544ce91c2d7a8eefbb
Signed-off-by: Puja Gupta <pujag@codeaurora.org>
Add error message for GFP_ATOMIC allocation failure. Keep current
design to drop packet if allocation fails. This print will help debug
issues where a system critical client fails because of a dropped GLINK
packet.
CRs-Fixed: 1112151
Change-Id: I6a69cbf1f88295009284d726a06fa5affd4cc591
Signed-off-by: Chris Lew <clew@codeaurora.org>
