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Merge "mvebu/fixes #3" from Andrew Lunn:
mvebu fixes for 3.19. (Part 4)
bus: mvebu-mbus: fix support of MBus window 13
* tag 'mvebu-fixes-3.19-4' of git://git.infradead.org/linux-mvebu:
bus: mvebu-mbus: fix support of MBus window 13
ARM: mvebu: completely disable hardware I/O coherency
Signed-off-by: Olof Johansson <olof@lixom.net>
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Pull kvm fixes from Paolo Bonzini:
"Three small fixes.
Two for x86 and one avoids that sparse bails out"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: SYSENTER emulation is broken
KVM: x86: Fix of previously incomplete fix for CVE-2014-8480
KVM: fix sparse warning in include/trace/events/kvm.h
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Pull ARM fixes from Russell King:
"Another round of small ARM fixes.
restore_user_regs early stack deallocation is buggy in the presence of
FIQs which switch to SVC mode, and could lead to corrupted registers
being returned to a user process given an inopportune FIQ event.
Another bug was spotted in the ARM perf code where it could lose track
of perf counter overflows, leading to incorrect perf results.
Lastly, a bug in arm_add_memory() was spotted where the memory sizes
aren't properly rounded. As most people pass properly rounded sizes,
this hasn't been noticed"
* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
ARM: 8292/1: mm: fix size rounding-down of arm_add_memory() function
ARM: 8255/1: perf: Prevent wraparound during overflow
ARM: 8266/1: Remove early stack deallocation from restore_user_regs
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull two arm64 fixes from Will Deacon:
"Arm64 fixes seem to come in pairs recently. We've got a fix for
removing device-tree blobs when doing a make clean and another one
addressing a missing include, which fixes build failures in -next for
allmodconfig (spotted by Mark's buildbot).
Summary from signed tag:
- fix cleaning of .dtbs following directory restructuring
- fix allmodconfig build breakage in -next due to missing include"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: dump: Fix implicit inclusion of definition for PCI_IOBASE
arm64: Add dtb files to archclean rule
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Starting with kernel 3.19-rc1 early registration of bcma on MIPS is done
a bit later, with memory allocator available. This allows us to simplify
code by using standard bus scanning method.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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The kernel's string library does in fact have strcasecmp, at least
since ded220bd8f08 ("[STRING]: Move strcasecmp/strncasecmp to
lib/string.c"). Moreover, this open-coded version is in fact wrong: If
the strings only differ in their last character, a and b have already
been incremented to point to the terminating NUL bytes, so they would
wrongly be treated as equal.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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if(!wait_for_completion_interruptible_timeout(...))
only handles the timeout case - this patch adds handling the
signal case the same as timeout.
Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at>
Acked-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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if(!wait_for_completion_interruptible_timeout(...))
only handles the timeout case - this patch adds handling the
signal case the same as timeout.
Signed-off-by: Nicholas Mc Guire <der.herr@hofr.at>
Acked-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Coverity: CID 114932
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Acked-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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This clause is conditioned on htc_hdr != NULL, but it will only be NULL
when that check is reached.
Coverity: CID 114318
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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This patch introduces the use of function put_unaligned_le32.
This is done using Coccinelle and semantic patch used is as follows:
@a@
typedef u32, __le32, uint32_t;
{u32,__le32,uint32_t} e32;
identifier tmp;
expression ptr;
expression y,e;
type T;
type T;
@@
- tmp = cpu_to_le32(y);
<+... when != tmp
(
- memcpy(ptr, (T)&tmp, \(4\|sizeof(u32)\|sizeof(__le32)\|sizeof(uint32_t)\|sizeof(e32)\));
+ put_unaligned_le32(y,ptr);
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- memcpy(ptr, (T)&tmp, ...);
+ put_unaligned_le32(y,ptr);
)
...+>
? tmp = e
@@ type T; identifier a.tmp; @@
- T tmp;
...when != tmp
Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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This reverts commit 02b2aaaa57ab41504e8d03a3b2ceeb9440a2c188.
This interface was determined to be flawed and required too invasive a
fix for the RC cycle. This will be revisited in 3.20.
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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This reverts commit 3161293ba6dfceee9c1efe75185677445def05d4.
This interface was determined to be flawed and required too invasive a
fix for the RC cycle. This will be revisited in 3.20.
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
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l2cap/rfcomm/sco_sock_accept() are wait loops which may acquire
sleeping locks. Since both wait loops and sleeping locks use
task_struct.state to sleep and wake, the nested sleeping locks
destroy the wait loop state.
Use the newly-minted wait_woken() and DEFINE_WAIT_FUNC() for the
wait loop. DEFINE_WAIT_FUNC() allows an alternate wake function
to be specified; in this case, the predefined scheduler function,
woken_wake_function(). This wait construct ensures wakeups will
not be missed without requiring the wait loop to set the
task state before condition evaluation. How this works:
CPU 0 | CPU 1
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| is <condition> set?
| no
set <condition> |
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wake_up_interruptible |
woken_wake_function |
set WQ_FLAG_WOKEN |
try_to_wake_up |
| wait_woken
| set TASK_INTERRUPTIBLE
| WQ_FLAG_WOKEN? yes
| set TASK_RUNNING
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| - loop -
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| is <condition> set?
| yes - exit wait loop
Fixes "do not call blocking ops when !TASK_RUNNING" warnings
in l2cap_sock_accept(), rfcomm_sock_accept() and sco_sock_accept().
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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This patch converts the Set Secure Connection HCI handling to use a HCI
request instead of using a hard-coded callback in hci_event.c. This e.g.
ensures that we don't clear the flags incorrectly if something goes
wrong with the power up process (not related to a mgmt Set SC command).
The code can also be simplified a bit since only one pending Set SC
command is allowed, i.e. mgmt_pending_foreach usage is not needed.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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The Add Remote OOB Data mgmt command should allow data to be passed for
LE as well. This patch removes a left-over check for BDADDR_BREDR that
should not be there anymore.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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Before doing any other verifications, the add_remote_oob_data function
should first check that the given address is valid. This patch adds such
a missing check to the beginning of the function.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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This moves main bus init code to the main.c and renames old function to
make its purpose clear.
Thanks to this change we'll also be able to separate scanning from
registration (and support PCIe Gen 2 devices) in the future.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Call b43_leds_stop during suspend to avoid this WARN:
WARNING: CPU: 1 PID: 0 at net/mac80211/util.c:755 ieee80211_can_queue_work.isra.11+0x35/0x50 [mac80211]()
queueing ieee80211 work while going to suspend
[...]
Call Trace:
[<c165fb2a>] dump_stack+0x48/0x69
[<c1052f7b>] warn_slowpath_common+0x8b/0xc0
[<f9c30225>] ? ieee80211_can_queue_work.isra.11+0x35/0x50 [mac80211]
[<f9c30225>] ? ieee80211_can_queue_work.isra.11+0x35/0x50 [mac80211]
[<c1052fe3>] warn_slowpath_fmt+0x33/0x40
[<f9c30225>] ieee80211_can_queue_work.isra.11+0x35/0x50 [mac80211]
[<f9c30260>] ieee80211_queue_work+0x20/0x40 [mac80211]
[<f9f25d78>] b43_led_brightness_set+0x28/0x30 [b43]
[<c14f3835>] led_timer_function+0xd5/0xe0
[<c10cb534>] call_timer_fn+0xa4/0x4a0
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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We recently introduced a new error path which needs an unlock.
Fixes: 6d5a748d4836 ('wlcore: add ability to reduce FW interrupts during suspend')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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The else if check condition checks for the opposite of the
if check, hence the else if check is redundant and can be
replaced with a simple else:
if (rtlpriv->rtlhal.macphymode == SINGLEMAC_SINGLEPHY) {
..
} else if (rtlpriv->rtlhal.macphymode != SINGLEMAC_SINGLEPHY) {
..
}
replaced with:
if (rtlpriv->rtlhal.macphymode == SINGLEMAC_SINGLEPHY) {
..
} else {
..
}
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Add an option "blink" to enable or disable the LED blink. The default
value is set to 1 so that existing users would not experience any
unexpected changes.
Signed-off-by: Hong Xu <hong@topbug.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Currently, wcn36xx only asks for a TX BA session if it has
already established one for RX. Thus, two wcn36xx devices cannot
do a-mpdu between themselves since they both wait for the other
to go first. Fix this by starting a BA session after a few QoS
data frames have been sent to a STA.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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The pdu is part of the buffer descriptor, so it makes
sense that one function would fill both. Also, passing
the whole skb instead of just the header pointer to the
set_tx_data function paves the way for using its fields
for ampdu setup inside set_tx_data().
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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The dxe lock is missing its initialization, so add it.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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ctl->skb_lock is never initialized, a fact caught by lockdep.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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The DMA engine will reset the valid bit after a descriptor is
complete; any with the valid bit still set may still be in
use by the hardware, so check that before freeing the descriptor.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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wcn36xx currently sends an incorrect sequence number into the BA session
setup firmware command: it should be saving or updating the ssn in the
TX_START ampdu_action callback instead of waiting until TX_OPERATIONAL.
However, we can sidestep the issue by letting the hardware generate the
sequence numbers for QoS frames, as is done in prima, so do that.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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bd->tx_comp is a single bit in a bitfield, so assigning
"info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS" only happens
to work because TX_STATUS is defined to BIT(0); if it were
any other bit this assignment would fail.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Set up default configuration for the device when we call start.
The defaults come from dumps from the prima driver for the same
hardware.
This fixes transmit A-MPDU; previously only one MPDU would be
sent per A-MPDU due to missing MAX_MPDUS_IN_AMPDU setting.
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Signed-off-by: Giel van Schijndel <me@mortis.eu>
Reported-at: http://www.viva64.com/en/b/0299/
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Avoid printing dev_{warn/dbg} messages while holding spinlock.
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Ignore scan and connection requests from cfg80211 when driver
unload is in process or previous command has timed out due to
a firmware bug. This patch fixes corner case system crash
issues.
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Check if the frame has been completed without any
error and use IEEE80211_TX_STAT_NOACK_TRANSMITTED to
indicate successful transmission of no-ack frames.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
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Introduce a new variable to count the number of allocated migration
structures. The existing variable cache->nr_migrations became
overloaded. It was used to:
i) track of the number of migrations in flight for the purposes of
quiescing during suspend.
ii) to estimate the amount of background IO occuring.
Recent discard changes meant that REQ_DISCARD bios are processed with
a migration. Discards are not background IO so nr_migrations was not
incremented. However this could cause quiescing to complete early.
(i) is now handled with a new variable cache->nr_allocated_migrations.
cache->nr_migrations has been renamed cache->nr_io_migrations.
cleanup_migration() is now called free_io_migration(), since it
decrements that variable.
Also, remove the unused cache->next_migration variable that got replaced
with with prealloc_structs a while ago.
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
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If a DM table is reloaded with an inactive table when the device is not
suspended (normal procedure for LVM2), then there will be two dm-bufio
objects that can diverge. This can lead to a situation where the
inactive table uses bufio to read metadata at the same time the active
table writes metadata -- resulting in the inactive table having stale
metadata buffers once it is promoted to the active table slot.
Fix this by using reference counting and a global list of cache metadata
objects to ensure there is only one metadata object per metadata device.
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
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https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next
* more work for new devices (4165 / 8260)
* cleanups / improvemnts in rate control
* fixes for TDLS
* major statistics work from Johannes - more to come
* improvements for the fw error dump infrastructure
* usual amount of small fixes here and there (scan, D0i3 etc...)
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For drivers without beacon filtering, support beacon statistics
entirely, i.e. report the number of beacons and average signal.
For drivers with beacon filtering, give them the number of beacons
received by mac80211 -- in case the device reports only the number
of filtered beacons then driver doesn't have to count all beacons
again as mac80211 already does.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Introduce selftests for overlays using sub-devices present
in children nodes.
Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
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SYSENTER emulation is broken in several ways:
1. It misses the case of 16-bit code segments completely (CVE-2015-0239).
2. MSR_IA32_SYSENTER_CS is checked in 64-bit mode incorrectly (bits 0 and 1 can
still be set without causing #GP).
3. MSR_IA32_SYSENTER_EIP and MSR_IA32_SYSENTER_ESP are not masked in
legacy-mode.
4. There is some unneeded code.
Fix it.
Cc: stable@vger.linux.org
Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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STR and SLDT with rip-relative operand can cause a host kernel oops.
Mark them as DstMem as well.
Cc: stable@vger.linux.org
Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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In the case of non-QoS association, the counter was actually
wrong. The right index isn't security_idx but seqno_idx, as
security_idx will be 0 for data frames, while 16 is needed.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Since c9465b4ec37a68425 (arm64: add support to dump the kernel page tables)
allmodconfig has failed to build on arm64 as a result of:
../arch/arm64/mm/dump.c:55:20: error: 'PCI_IOBASE' undeclared here (not in a function)
Fix this by explicitly including io.h to ensure that a definition is
present.
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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These conditions are rather difficult to follow, for example
because "!sta" only exists to not crash in the case that we
don't have a station pointer (WLAN_TDLS_SETUP_REQUEST) in
which the additional condition (peer supports HT) doesn't
actually matter anyway.
Cleaning this up only duplicates two lines of code but makes
the rest far easier to read, so do that.
As a side effect, smatch stops complaining about the lack of
a sta pointer test after the !sta (since the !sta goes away)
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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There's no need to use another local 'sta' variable as the
original (outer scope) one isn't needed any more and has
become invalid anyway when exiting the RCU read section.
Remove the inner scope one and along with it the useless NULL
initialization.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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smatch warns that we once checked request->ssids in two functions
and then unconditionally used it later again.
This is actually fine, because the code has a relationship between
attrs[NL80211_ATTR_SCAN_SSIDS], n_ssids and request->ssids, but
smatch isn't smart enough to realize that.
Suppress the warnings by always checking just n_ssids - that way
smatch won't know that request->ssids could be NULL, and since it
is only NULL when n_ssids is 0 we still check everything correctly.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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In case userspace attempts to obtain key information for or delete a
unicast key, this is currently erroneously rejected unless the driver
sets the WIPHY_FLAG_IBSS_RSN flag. Apparently enough drivers do so it
was never noticed.
Fix that, and while at it fix a potential memory leak: the error path
in the get_key() function was placed after allocating a message but
didn't free it - move it to a better place. Luckily admin permissions
are needed to call this operation.
Cc: stable@vger.kernel.org
Fixes: e31b82136d1ad ("cfg80211/mac80211: allow per-station GTKs")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This reverts commit 2ae70efcea7a695a62bb47170d3fb16674b8dbea.
The new peer events that are generated by the change are causing problems
with wpa_supplicant in userspace: wpa_s tries to restart SAE authentication
with the peer when receiving the event, even though authentication may be in
progress already, and it gets very confused.
Revert back to the original operating mode, which is to only get events when
there is no corresponding station entry.
Cc: Nishikawa, Kenzoh <Kenzoh.Nishikawa@jp.sony.com>
Cc: Masashi Honma <masashi.honma@gmail.com>
Signed-off-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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It is possible that a deferred scan is queued after the queues are
flushed in __ieee80211_suspend(). The deferred scan work may be
scheduled by ROC or ieee80211_stop_poll().
To make sure don't start a new scan while suspending, check whether
we're quiescing or suspended and complete the scan immediately if
that's the case.
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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When we go to suspend, there is complex set of states that
avoids races. The quiescing variable is set whlie
__ieee80211_suspend is running. Then suspended is set.
The code makes sure there is no window without any of these
flags.
The problem is that workers can still be enqueued while we
are quiescing. This leads to situations where the driver is
already suspending and other flows like disassociation are
handled by a worker.
To fix this, we need to check quiescing and suspended flags
in the worker itself and not only before enqueueing it.
I also add here extensive documentation to ease the
understanding of these complex issues.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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