Commit Graph

853364 Commits

Author SHA1 Message Date
Eugen Hristev
03ac6ed43f media: i2c: mt9v032: fix enum mbus codes and frame sizes
[ Upstream commit 1451d5ae35 ]

This driver supports both the mt9v032 (color) and the mt9v022 (mono)
sensors. Depending on which sensor is used, the format from the sensor is
different. The format.code inside the dev struct holds this information.
The enum mbus and enum frame sizes need to take into account both type of
sensors, not just the color one. To solve this, use the format.code in
these functions instead of the hardcoded bayer color format (which is only
used for mt9v032).

[Sakari Ailus: rewrapped commit message]

Suggested-by: Wenyou Yang <wenyou.yang@microchip.com>
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-24 08:34:36 +01:00
Christophe JAILLET
8cc5aa5ce6 pxa168fb: Fix the function used to release some memory in an error handling path
[ Upstream commit 3c911fe799 ]

In the probe function, some resources are allocated using 'dma_alloc_wc()',
they should be released with 'dma_free_wc()', not 'dma_free_coherent()'.

We already use 'dma_free_wc()' in the remove function, but not in the
error handling path of the probe function.

Also, remove a useless 'PAGE_ALIGN()'. 'info->fix.smem_len' is already
PAGE_ALIGNed.

Fixes: 638772c755 ("fb: add support of LCD display controller on pxa168/910 (base layer)")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Lubomir Rintel <lkundrak@v3.sk>
CC: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190831100024.3248-1-christophe.jaillet@wanadoo.fr
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-24 08:34:36 +01:00
Geert Uytterhoeven
e5c8d49b9b pinctrl: sh-pfc: sh7264: Fix CAN function GPIOs
[ Upstream commit 55b1cb1f03 ]

pinmux_func_gpios[] contains a hole due to the missing function GPIO
definition for the "CTX0&CTX1" signal, which is the logical "AND" of the
two CAN outputs.

Fix this by:
  - Renaming CRX0_CRX1_MARK to CTX0_CTX1_MARK, as PJ2MD[2:0]=010
    configures the combined "CTX0&CTX1" output signal,
  - Renaming CRX0X1_MARK to CRX0_CRX1_MARK, as PJ3MD[1:0]=10 configures
    the shared "CRX0/CRX1" input signal, which is fed to both CAN
    inputs,
  - Adding the missing function GPIO definition for "CTX0&CTX1" to
    pinmux_func_gpios[],
  - Moving all CAN enums next to each other.

See SH7262 Group, SH7264 Group User's Manual: Hardware, Rev. 4.00:
  [1] Figure 1.2 (3) (Pin Assignment for the SH7264 Group (1-Mbyte
      Version),
  [2] Figure 1.2 (4) Pin Assignment for the SH7264 Group (640-Kbyte
      Version,
  [3] Table 1.4 List of Pins,
  [4] Figure 20.29 Connection Example when Using This Module as 1-Channel
      Module (64 Mailboxes x 1 Channel),
  [5] Table 32.10 Multiplexed Pins (Port J),
  [6] Section 32.2.30 (3) Port J Control Register 0 (PJCR0).

Note that the last 2 disagree about PJ2MD[2:0], which is probably the
root cause of this bug.  But considering [4], "CTx0&CTx1" in [5] must
be correct, and "CRx0&CRx1" in [6] must be wrong.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20191218194812.12741-4-geert+renesas@glider.be
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-24 08:34:36 +01:00
Vladimir Oltean
195e54e686 gianfar: Fix TX timestamping with a stacked DSA driver
[ Upstream commit c26a2c2ddc ]

The driver wrongly assumes that it is the only entity that can set the
SKBTX_IN_PROGRESS bit of the current skb. Therefore, in the
gfar_clean_tx_ring function, where the TX timestamp is collected if
necessary, the aforementioned bit is used to discriminate whether or not
the TX timestamp should be delivered to the socket's error queue.

But a stacked driver such as a DSA switch can also set the
SKBTX_IN_PROGRESS bit, which is actually exactly what it should do in
order to denote that the hardware timestamping process is undergoing.

Therefore, gianfar would misinterpret the "in progress" bit as being its
own, and deliver a second skb clone in the socket's error queue,
completely throwing off a PTP process which is not expecting to receive
it, _even though_ TX timestamping is not enabled for gianfar.

There have been discussions [0] as to whether non-MAC drivers need or
not to set SKBTX_IN_PROGRESS at all (whose purpose is to avoid sending 2
timestamps, a sw and a hw one, to applications which only expect one).
But as of this patch, there are at least 2 PTP drivers that would break
in conjunction with gianfar: the sja1105 DSA switch and the felix
switch, by way of its ocelot core driver.

So regardless of that conclusion, fix the gianfar driver to not do stuff
based on flags set by others and not intended for it.

[0]: https://www.spinics.net/lists/netdev/msg619699.html

Fixes: f0ee7acfcd ("gianfar: Add hardware TX timestamping support")
Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-24 08:34:35 +01:00
Takashi Sakamoto
2dbae70b0e ALSA: ctl: allow TLV read operation for callback type of element in locked case
[ Upstream commit d61fe22c2a ]

A design of ALSA control core allows applications to execute three
operations for TLV feature; read, write and command. Furthermore, it
allows driver developers to process the operations by two ways; allocated
array or callback function. In the former, read operation is just allowed,
thus developers uses the latter when device driver supports variety of
models or the target model is expected to dynamically change information
stored in TLV container.

The core also allows applications to lock any element so that the other
applications can't perform write operation to the element for element
value and TLV information. When the element is locked, write and command
operation for TLV information are prohibited as well as element value.
Any read operation should be allowed in the case.

At present, when an element has callback function for TLV information,
TLV read operation returns EPERM if the element is locked. On the
other hand, the read operation is success when an element has allocated
array for TLV information. In both cases, read operation is success for
element value expectedly.

This commit fixes the bug. This change can be backported to v4.14
kernel or later.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20191223093347.15279-1-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-24 08:34:35 +01:00
Ritesh Harjani
428bb08aed ext4: fix ext4_dax_read/write inode locking sequence for IOCB_NOWAIT
[ Upstream commit f629afe336 ]

Apparently our current rwsem code doesn't like doing the trylock, then
lock for real scheme.  So change our dax read/write methods to just do the
trylock for the RWF_NOWAIT case.
This seems to fix AIM7 regression in some scalable filesystems upto ~25%
in some cases. Claimed in commit 942491c9e6 ("xfs: fix AIM7 regression")

Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Matthew Bobrowski <mbobrowski@mbobrowski.org>
Tested-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Signed-off-by: Ritesh Harjani <riteshh@linux.ibm.com>
Link: https://lore.kernel.org/r/20191212055557.11151-2-riteshh@linux.ibm.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-24 08:34:35 +01:00
Zahari Petkov
44d748f2ab leds: pca963x: Fix open-drain initialization
[ Upstream commit 697529091a ]

Before commit bb29b9cccd ("leds: pca963x: Add bindings to invert
polarity") Mode register 2 was initialized directly with either 0x01
or 0x05 for open-drain or totem pole (push-pull) configuration.

Afterwards, MODE2 initialization started using bitwise operations on
top of the default MODE2 register value (0x05). Using bitwise OR for
setting OUTDRV with 0x01 and 0x05 does not produce correct results.
When open-drain is used, instead of setting OUTDRV to 0, the driver
keeps it as 1:

Open-drain: 0x05 | 0x01 -> 0x05 (0b101 - incorrect)
Totem pole: 0x05 | 0x05 -> 0x05 (0b101 - correct but still wrong)

Now OUTDRV setting uses correct bitwise operations for initialization:

Open-drain: 0x05 & ~0x04 -> 0x01 (0b001 - correct)
Totem pole: 0x05 | 0x04 -> 0x05 (0b101 - correct)

Additional MODE2 register definitions are introduced now as well.

Fixes: bb29b9cccd ("leds: pca963x: Add bindings to invert polarity")
Signed-off-by: Zahari Petkov <zahari@balena.io>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-24 08:34:35 +01:00
Dan Carpenter
ead1cee889 brcmfmac: Fix use after free in brcmf_sdio_readframes()
[ Upstream commit 216b44000a ]

The brcmu_pkt_buf_free_skb() function frees "pkt" so it leads to a
static checker warning:

    drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c:1974 brcmf_sdio_readframes()
    error: dereferencing freed memory 'pkt'

It looks like there was supposed to be a continue after we free "pkt".

Fixes: 4754fceeb9 ("brcmfmac: streamline SDIO read frame routine")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Franky Lin <franky.lin@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-24 08:34:35 +01:00
Peter Zijlstra
b9dc4d61b5 cpu/hotplug, stop_machine: Fix stop_machine vs hotplug order
[ Upstream commit 45178ac0ce ]

Paul reported a very sporadic, rcutorture induced, workqueue failure.
When the planets align, the workqueue rescuer's self-migrate fails and
then triggers a WARN for running a work on the wrong CPU.

Tejun then figured that set_cpus_allowed_ptr()'s stop_one_cpu() call
could be ignored! When stopper->enabled is false, stop_machine will
insta complete the work, without actually doing the work. Worse, it
will not WARN about this (we really should fix this).

It turns out there is a small window where a freshly online'ed CPU is
marked 'online' but doesn't yet have the stopper task running:

	BP				AP

	bringup_cpu()
	  __cpu_up(cpu, idle)	 -->	start_secondary()
					...
					cpu_startup_entry()
	  bringup_wait_for_ap()
	    wait_for_ap_thread() <--	  cpuhp_online_idle()
					  while (1)
					    do_idle()

					... available to run kthreads ...

	    stop_machine_unpark()
	      stopper->enable = true;

Close this by moving the stop_machine_unpark() into
cpuhp_online_idle(), such that the stopper thread is ready before we
start the idle loop and schedule.

Reported-by: "Paul E. McKenney" <paulmck@kernel.org>
Debugged-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: "Paul E. McKenney" <paulmck@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-24 08:34:35 +01:00
Paul Kocialkowski
5d358e7e2b drm/gma500: Fixup fbdev stolen size usage evaluation
[ Upstream commit fd1a5e521c ]

psbfb_probe performs an evaluation of the required size from the stolen
GTT memory, but gets it wrong in two distinct ways:
- The resulting size must be page-size-aligned;
- The size to allocate is derived from the surface dimensions, not the fb
  dimensions.

When two connectors are connected with different modes, the smallest will
be stored in the fb dimensions, but the size that needs to be allocated must
match the largest (surface) dimensions. This is what is used in the actual
allocation code.

Fix this by correcting the evaluation to conform to the two points above.
It allows correctly switching to 16bpp when one connector is e.g. 1920x1080
and the other is 1024x768.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191107153048.843881-1-paul.kocialkowski@bootlin.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-24 08:34:35 +01:00
Sean Christopherson
2130de7d5e KVM: nVMX: Use correct root level for nested EPT shadow page tables
[ Upstream commit 148d735eb5 ]

Hardcode the EPT page-walk level for L2 to be 4 levels, as KVM's MMU
currently also hardcodes the page walk level for nested EPT to be 4
levels.  The L2 guest is all but guaranteed to soft hang on its first
instruction when L1 is using EPT, as KVM will construct 4-level page
tables and then tell hardware to use 5-level page tables.

Fixes: 855feb6736 ("KVM: MMU: Add 5 level EPT & Shadow page table support.")
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-24 08:34:35 +01:00
Sasha Levin
9c270ce33d Revert "KVM: VMX: Add non-canonical check on writes to RTIT address MSRs"
This reverts commit 57211b7366.

This patch isn't needed on 4.19 and older.

Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-24 08:34:35 +01:00
Sasha Levin
249387d719 Revert "KVM: nVMX: Use correct root level for nested EPT shadow page tables"
This reverts commit 740d876bd9.

Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-02-24 08:34:35 +01:00
Davide Caratti
e2eb6f22ac net/sched: flower: add missing validation of TCA_FLOWER_FLAGS
[ Upstream commit e2debf0852 ]

unlike other classifiers that can be offloaded (i.e. users can set flags
like 'skip_hw' and 'skip_sw'), 'cls_flower' doesn't validate the size of
netlink attribute 'TCA_FLOWER_FLAGS' provided by user: add a proper entry
to fl_policy.

Fixes: 5b33f48842 ("net/flower: Introduce hardware offload support")
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-24 08:34:34 +01:00
Davide Caratti
6752ae607d net/sched: matchall: add missing validation of TCA_MATCHALL_FLAGS
[ Upstream commit 1afa3cc90f ]

unlike other classifiers that can be offloaded (i.e. users can set flags
like 'skip_hw' and 'skip_sw'), 'cls_matchall' doesn't validate the size
of netlink attribute 'TCA_MATCHALL_FLAGS' provided by user: add a proper
entry to mall_policy.

Fixes: b87f7936a9 ("net/sched: Add match-all classifier hw offloading.")
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-24 08:34:34 +01:00
Per Forlin
d1e0f10e92 net: dsa: tag_qca: Make sure there is headroom for tag
[ Upstream commit 04fb91243a ]

Passing tag size to skb_cow_head will make sure
there is enough headroom for the tag data.
This change does not introduce any overhead in case there
is already available headroom for tag.

Signed-off-by: Per Forlin <perfn@axis.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-24 08:34:34 +01:00
Eric Dumazet
421ab4119e net/smc: fix leak of kernel memory to user space
[ Upstream commit 457fed775c ]

As nlmsg_put() does not clear the memory that is reserved,
it this the caller responsability to make sure all of this
memory will be written, in order to not reveal prior content.

While we are at it, we can provide the socket cookie even
if clsock is not set.

syzbot reported :

BUG: KMSAN: uninit-value in __arch_swab32 arch/x86/include/uapi/asm/swab.h:10 [inline]
BUG: KMSAN: uninit-value in __fswab32 include/uapi/linux/swab.h:59 [inline]
BUG: KMSAN: uninit-value in __swab32p include/uapi/linux/swab.h:179 [inline]
BUG: KMSAN: uninit-value in __be32_to_cpup include/uapi/linux/byteorder/little_endian.h:82 [inline]
BUG: KMSAN: uninit-value in get_unaligned_be32 include/linux/unaligned/access_ok.h:30 [inline]
BUG: KMSAN: uninit-value in ____bpf_skb_load_helper_32 net/core/filter.c:240 [inline]
BUG: KMSAN: uninit-value in ____bpf_skb_load_helper_32_no_cache net/core/filter.c:255 [inline]
BUG: KMSAN: uninit-value in bpf_skb_load_helper_32_no_cache+0x14a/0x390 net/core/filter.c:252
CPU: 1 PID: 5262 Comm: syz-executor.5 Not tainted 5.5.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c9/0x220 lib/dump_stack.c:118
 kmsan_report+0xf7/0x1e0 mm/kmsan/kmsan_report.c:118
 __msan_warning+0x58/0xa0 mm/kmsan/kmsan_instr.c:215
 __arch_swab32 arch/x86/include/uapi/asm/swab.h:10 [inline]
 __fswab32 include/uapi/linux/swab.h:59 [inline]
 __swab32p include/uapi/linux/swab.h:179 [inline]
 __be32_to_cpup include/uapi/linux/byteorder/little_endian.h:82 [inline]
 get_unaligned_be32 include/linux/unaligned/access_ok.h:30 [inline]
 ____bpf_skb_load_helper_32 net/core/filter.c:240 [inline]
 ____bpf_skb_load_helper_32_no_cache net/core/filter.c:255 [inline]
 bpf_skb_load_helper_32_no_cache+0x14a/0x390 net/core/filter.c:252

Uninit was created at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:144 [inline]
 kmsan_internal_poison_shadow+0x66/0xd0 mm/kmsan/kmsan.c:127
 kmsan_kmalloc_large+0x73/0xc0 mm/kmsan/kmsan_hooks.c:128
 kmalloc_large_node_hook mm/slub.c:1406 [inline]
 kmalloc_large_node+0x282/0x2c0 mm/slub.c:3841
 __kmalloc_node_track_caller+0x44b/0x1200 mm/slub.c:4368
 __kmalloc_reserve net/core/skbuff.c:141 [inline]
 __alloc_skb+0x2fd/0xac0 net/core/skbuff.c:209
 alloc_skb include/linux/skbuff.h:1049 [inline]
 netlink_dump+0x44b/0x1ab0 net/netlink/af_netlink.c:2224
 __netlink_dump_start+0xbb2/0xcf0 net/netlink/af_netlink.c:2352
 netlink_dump_start include/linux/netlink.h:233 [inline]
 smc_diag_handler_dump+0x2ba/0x300 net/smc/smc_diag.c:242
 sock_diag_rcv_msg+0x211/0x610 net/core/sock_diag.c:256
 netlink_rcv_skb+0x451/0x650 net/netlink/af_netlink.c:2477
 sock_diag_rcv+0x63/0x80 net/core/sock_diag.c:275
 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
 netlink_unicast+0xf9e/0x1100 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x1248/0x14d0 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:639 [inline]
 sock_sendmsg net/socket.c:659 [inline]
 kernel_sendmsg+0x433/0x440 net/socket.c:679
 sock_no_sendpage+0x235/0x300 net/core/sock.c:2740
 kernel_sendpage net/socket.c:3776 [inline]
 sock_sendpage+0x1e1/0x2c0 net/socket.c:937
 pipe_to_sendpage+0x38c/0x4c0 fs/splice.c:458
 splice_from_pipe_feed fs/splice.c:512 [inline]
 __splice_from_pipe+0x539/0xed0 fs/splice.c:636
 splice_from_pipe fs/splice.c:671 [inline]
 generic_splice_sendpage+0x1d5/0x2d0 fs/splice.c:844
 do_splice_from fs/splice.c:863 [inline]
 do_splice fs/splice.c:1170 [inline]
 __do_sys_splice fs/splice.c:1447 [inline]
 __se_sys_splice+0x2380/0x3350 fs/splice.c:1427
 __x64_sys_splice+0x6e/0x90 fs/splice.c:1427
 do_syscall_64+0xb8/0x160 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Fixes: f16a7dd5cf ("smc: netlink interface for SMC sockets")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-24 08:34:34 +01:00
Firo Yang
150f8c56be enic: prevent waking up stopped tx queues over watchdog reset
[ Upstream commit 0f90522591 ]

Recent months, our customer reported several kernel crashes all
preceding with following message:
NETDEV WATCHDOG: eth2 (enic): transmit queue 0 timed out
Error message of one of those crashes:
BUG: unable to handle kernel paging request at ffffffffa007e090

After analyzing severl vmcores, I found that most of crashes are
caused by memory corruption. And all the corrupted memory areas
are overwritten by data of network packets. Moreover, I also found
that the tx queues were enabled over watchdog reset.

After going through the source code, I found that in enic_stop(),
the tx queues stopped by netif_tx_disable() could be woken up over
a small time window between netif_tx_disable() and the
napi_disable() by the following code path:
napi_poll->
  enic_poll_msix_wq->
     vnic_cq_service->
        enic_wq_service->
           netif_wake_subqueue(enic->netdev, q_number)->
              test_and_clear_bit(__QUEUE_STATE_DRV_XOFF, &txq->state)
In turn, upper netowrk stack could queue skb to ENIC NIC though
enic_hard_start_xmit(). And this might introduce some race condition.

Our customer comfirmed that this kind of kernel crash doesn't occur over
90 days since they applied this patch.

Signed-off-by: Firo Yang <firo.yang@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-24 08:34:34 +01:00
Toke Høiland-Jørgensen
ce754a3149 core: Don't skip generic XDP program execution for cloned SKBs
[ Upstream commit ad1e03b2b3 ]

The current generic XDP handler skips execution of XDP programs entirely if
an SKB is marked as cloned. This leads to some surprising behaviour, as
packets can end up being cloned in various ways, which will make an XDP
program not see all the traffic on an interface.

This was discovered by a simple test case where an XDP program that always
returns XDP_DROP is installed on a veth device. When combining this with
the Scapy packet sniffer (which uses an AF_PACKET) socket on the sending
side, SKBs reliably end up in the cloned state, causing them to be passed
through to the receiving interface instead of being dropped. A minimal
reproducer script for this is included below.

This patch fixed the issue by simply triggering the existing linearisation
code for cloned SKBs instead of skipping the XDP program execution. This
behaviour is in line with the behaviour of the native XDP implementation
for the veth driver, which will reallocate and copy the SKB data if the SKB
is marked as shared.

Reproducer Python script (requires BCC and Scapy):

from scapy.all import TCP, IP, Ether, sendp, sniff, AsyncSniffer, Raw, UDP
from bcc import BPF
import time, sys, subprocess, shlex

SKB_MODE = (1 << 1)
DRV_MODE = (1 << 2)
PYTHON=sys.executable

def client():
    time.sleep(2)
    # Sniffing on the sender causes skb_cloned() to be set
    s = AsyncSniffer()
    s.start()

    for p in range(10):
        sendp(Ether(dst="aa:aa:aa:aa:aa:aa", src="cc:cc:cc:cc:cc:cc")/IP()/UDP()/Raw("Test"),
              verbose=False)
        time.sleep(0.1)

    s.stop()
    return 0

def server(mode):
    prog = BPF(text="int dummy_drop(struct xdp_md *ctx) {return XDP_DROP;}")
    func = prog.load_func("dummy_drop", BPF.XDP)
    prog.attach_xdp("a_to_b", func, mode)

    time.sleep(1)

    s = sniff(iface="a_to_b", count=10, timeout=15)
    if len(s):
        print(f"Got {len(s)} packets - should have gotten 0")
        return 1
    else:
        print("Got no packets - as expected")
        return 0

if len(sys.argv) < 2:
    print(f"Usage: {sys.argv[0]} <skb|drv>")
    sys.exit(1)

if sys.argv[1] == "client":
    sys.exit(client())
elif sys.argv[1] == "server":
    mode = SKB_MODE if sys.argv[2] == 'skb' else DRV_MODE
    sys.exit(server(mode))
else:
    try:
        mode = sys.argv[1]
        if mode not in ('skb', 'drv'):
            print(f"Usage: {sys.argv[0]} <skb|drv>")
            sys.exit(1)
        print(f"Running in {mode} mode")

        for cmd in [
                'ip netns add netns_a',
                'ip netns add netns_b',
                'ip -n netns_a link add a_to_b type veth peer name b_to_a netns netns_b',
                # Disable ipv6 to make sure there's no address autoconf traffic
                'ip netns exec netns_a sysctl -qw net.ipv6.conf.a_to_b.disable_ipv6=1',
                'ip netns exec netns_b sysctl -qw net.ipv6.conf.b_to_a.disable_ipv6=1',
                'ip -n netns_a link set dev a_to_b address aa:aa:aa:aa:aa:aa',
                'ip -n netns_b link set dev b_to_a address cc:cc:cc:cc:cc:cc',
                'ip -n netns_a link set dev a_to_b up',
                'ip -n netns_b link set dev b_to_a up']:
            subprocess.check_call(shlex.split(cmd))

        server = subprocess.Popen(shlex.split(f"ip netns exec netns_a {PYTHON} {sys.argv[0]} server {mode}"))
        client = subprocess.Popen(shlex.split(f"ip netns exec netns_b {PYTHON} {sys.argv[0]} client"))

        client.wait()
        server.wait()
        sys.exit(server.returncode)

    finally:
        subprocess.run(shlex.split("ip netns delete netns_a"))
        subprocess.run(shlex.split("ip netns delete netns_b"))

Fixes: d445516966 ("net: xdp: support xdp generic on virtual devices")
Reported-by: Stepan Horacek <shoracek@redhat.com>
Suggested-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-24 08:34:34 +01:00
Wang Panzhenzhuan
b1a495135b media: i2c: vcm drivers synchronize with kernel 4.4
vcm drivers synchronize with kernel 4.4 & fix compile error

Signed-off-by: Wang Panzhenzhuan <randy.wang@rock-chips.com>
Change-Id: I7c3650867f0f3c867790dfe017bd89ac6067c2a4
2020-02-24 15:25:51 +08:00
Sandy Huang
a50d5ff77b drm/rockchip: edp: init crtc state from edp
Change-Id: I8ffc3b06b057c91675fc256ccc0866d9721a0b16
Signed-off-by: Sandy Huang <hjc@rock-chips.com>
2020-02-24 15:22:36 +08:00
Sandy Huang
16438cbdd6 ARM: dts: rockchip: fix rk3288 edp panel
Change-Id: I5c7852293c2573f65a86bb4eaaf18f7dc00a4afa
Signed-off-by: Sandy Huang <hjc@rock-chips.com>
2020-02-24 15:22:14 +08:00
Andy Yan
8076fbffea net: can: add rockchip CAN driver
Change-Id: I985eb81f4e06c085be66d2db2cd5c879bda0dd69
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
2020-02-24 10:09:28 +08:00
Elaine Zhang
4d2ad93b5c dt-bindings: can: rockchip_can: add can support for rockchip
This patch add the rockchip can to the device tree bindings
documentation.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Change-Id: I7a15174dda4a6eec6196fca5e2c386a7844b70ee
2020-02-24 10:07:22 +08:00
Will McVicker
1596509710 ANDROID: arm64: update the abi with the new gki_defconfig
Leaf changes summary: 4 artifacts changed
Changed leaf types summary: 1 leaf type changed
Removed/Changed/Added functions summary: 3 Removed, 0 Changed, 0 Added function
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable

3 Removed functions:

  [D] 'function unsigned int debug_smp_processor_id()'
  [D] 'function void preempt_count_add(int)'
  [D] 'function void preempt_count_sub(int)'

'struct task_struct at sched.h:635:1' changed:
  type size hasn't changed
  1 data member deletion:
    'unsigned long int task_struct::preempt_disable_ip', at offset 18304 (in bits) at sched.h:1067:1

  there are data member changes:
   'callback_head task_struct::rcu' offset changed from 18368 to 18304 (in bits) (by -64 bits)
   'tlbflush_unmap_batch task_struct::tlb_ubc' offset changed from 18368 to 18304 (in bits) (by -64 bits)
   'pipe_inode_info* task_struct::splice_pipe' offset changed from 18496 to 18432 (in bits) (by -64 bits)
   'page_frag task_struct::task_frag' offset changed from 18560 to 18496 (in bits) (by -64 bits)
   'int task_struct::nr_dirtied' offset changed from 18688 to 18624 (in bits) (by -64 bits)
   'int task_struct::nr_dirtied_pause' offset changed from 18720 to 18656 (in bits) (by -64 bits)
   'unsigned long int task_struct::dirty_paused_when' offset changed from 18752 to 18688 (in bits) (by -64 bits)
   'u64 task_struct::timer_slack_ns' offset changed from 18816 to 18752 (in bits) (by -64 bits)
   'u64 task_struct::default_timer_slack_ns' offset changed from 18880 to 18816 (in bits) (by -64 bits)
   'unsigned long int task_struct::trace' offset changed from 18944 to 18880 (in bits) (by -64 bits)
   'unsigned long int task_struct::trace_recursion' offset changed from 19008 to 18944 (in bits) (by -64 bits)
   'mem_cgroup* task_struct::memcg_in_oom' offset changed from 19072 to 19008 (in bits) (by -64 bits)
   'gfp_t task_struct::memcg_oom_gfp_mask' offset changed from 19136 to 19072 (in bits) (by -64 bits)
   'int task_struct::memcg_oom_order' offset changed from 19168 to 19104 (in bits) (by -64 bits)
   'unsigned int task_struct::memcg_nr_pages_over_high' offset changed from 19200 to 19136 (in bits) (by -64 bits)
   'mem_cgroup* task_struct::active_memcg' offset changed from 19264 to 19200 (in bits) (by -64 bits)
   'request_queue* task_struct::throttle_queue' offset changed from 19328 to 19264 (in bits) (by -64 bits)
   'uprobe_task* task_struct::utask' offset changed from 19392 to 19328 (in bits) (by -64 bits)
   'int task_struct::pagefault_disabled' offset changed from 19456 to 19392 (in bits) (by -64 bits)
   'task_struct* task_struct::oom_reaper_list' offset changed from 19520 to 19456 (in bits) (by -64 bits)
   'vm_struct* task_struct::stack_vm_area' offset changed from 19584 to 19520 (in bits) (by -64 bits)
   'atomic_t task_struct::stack_refcount' offset changed from 19648 to 19584 (in bits) (by -64 bits)
   'void* task_struct::security' offset changed from 19712 to 19648 (in bits) (by -64 bits)
   'thread_struct task_struct::thread' offset changed from 19840 to 19712 (in bits) (by -128 bits)

  456 impacted interfaces

Signed-off-by: Will McVicker <willmcvicker@google.com>
Bug: 147894960
Change-Id: I9974cd9b4b46be88ace798ae242a8d7ff6ae4501
2020-02-21 15:50:20 -08:00
Will McVicker
2e00ac5c21 ANDROID: arm64: gki_defconfig: disable CONFIG_DEBUG_PREEMPT
We don't need this. So disable to improve the ABI diff with vendors.

Signed-off-by: Will McVicker <willmcvicker@google.com>
Bug: 148870985
Test: compile test
Change-Id: I70690c8be2c3ffcc77f7c8c1d472be0ffffd0587
2020-02-21 15:46:04 -08:00
Will McVicker
93511073ec ANDROID: GKI: arm64: gki_defconfig: follow-up to removing DRM_MSM driver
These configs are selected by CONFIG_DRM_MSM. Explicitly add them now
that CONFIG_DRM_MSM isn't auto-selected.

Signed-off-by: Will McVicker <willmcvicker@google.com>
Bug: 147895101
Test: compile, verify the ABI is updated
Test: verify the module is loaded on the reference device
Change-Id: I084f785010ce85be4841d59e0809f844b26baeff
2020-02-21 15:26:04 -08:00
Jordan Crouse
e44116025f ANDROID: drm/msm: Remove Kconfig default
Remove the default for CONFIG_DRM_MSM and let the user select the driver
manually as one does.

Additionally select QCOM_COMMAND_DB for ARCH_QCOM targets to make sure
it doesn't get missed when we need it for a6xx targets.

v2: Move from default 'm' to no default

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Will McVicker <willmcvicker@google.com>
Bug: 147895101
Change-Id: Ib22cc516c0685d4bf9e5934b267a633d6764aeea
2020-02-21 15:26:04 -08:00
Will McVicker
ae54445e56 ANDROID: GKI: arm64: gki_defconfig: remove qcom,cmd-db driver
It can be compiled as a module. So, drop from gki_defconfig

Signed-off-by: Will McVicker <willmcvicker@google.com>
Bug: 149128810
Test: compile, verify ABI is updated
Test: verify module loads on reference device
Change-Id: I1fe926ab1e41de9d76ec9ba85ba84e5a9c9b379b
2020-02-21 15:26:04 -08:00
Will McVicker
51cac89add ANDROID: GKI: drivers: qcom: cmd-db: Allow compiling qcom,cmd-db driver as module
This is a hardware specific driver. So, allow compiling it as a module.

Signed-off-by: Will McVicker <willmcvicker@google.com>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Bug: 149128810
Test: compile, verify ABI is updated
Test: verify module loads on reference device
Change-Id: I98667e51914277e2009901c327db488b94dfd133
2020-02-21 15:26:04 -08:00
Will McVicker
336dfa707c ANDROID: GKI: arm64: gki_defconfig: remove qcom,rpmh-rsc driver
It can be compiled as a module. So, do that instead.

Change-Id: I3f0bf1a2d16cba80bc8bff4a5acc07c3bf5768f9
Signed-off-by: Will McVicker <willmcvicker@google.com>
Bug: 133440650
Test: compile, verify the ABI has been updated accordingly
Test: verify the module loads on reference device
2020-02-21 15:26:04 -08:00
Will McVicker
1ee367d368 ANDROID: GKI: drivers: qcom: rpmh-rsc: Add tristate support for qcom,rpmh-rsc driver
Adds module license and sets CONFIG_QCOM_RPMH Kconfig as tristate.

Signed-off-by: Will McVicker <willmcvicker@google.com>
Bug: 133440650
Test: compile
Change-Id: Ia450c920a25cdcbd86b4917de1030e212fdc21e6
2020-02-21 15:26:04 -08:00
Eric Biggers
b60858fe82 Merge remote-tracking branch 'aosp/upstream-f2fs-stable-linux-4.19.y' into android-4.19
* aosp/upstream-f2fs-stable-linux-4.19.y:
  fs-verity: use u64_to_user_ptr()
  fs-verity: use mempool for hash requests
  fs-verity: implement readahead of Merkle tree pages
  fs-verity: implement readahead for FS_IOC_ENABLE_VERITY
  fscrypt: improve format of no-key names
  ubifs: allow both hash and disk name to be provided in no-key names
  ubifs: don't trigger assertion on invalid no-key filename
  fscrypt: clarify what is meant by a per-file key
  fscrypt: derive dirhash key for casefolded directories
  fscrypt: don't allow v1 policies with casefolding
  fscrypt: add "fscrypt_" prefix to fname_encrypt()
  fscrypt: don't print name of busy file when removing key
  fscrypt: document gfp_flags for bounce page allocation
  fscrypt: optimize fscrypt_zeroout_range()
  fscrypt: remove redundant bi_status check
  fscrypt: Allow modular crypto algorithms
  fscrypt: include <linux/ioctl.h> in UAPI header
  fscrypt: don't check for ENOKEY from fscrypt_get_encryption_info()
  fscrypt: remove fscrypt_is_direct_key_policy()
  fscrypt: move fscrypt_valid_enc_modes() to policy.c
  fscrypt: check for appropriate use of DIRECT_KEY flag earlier
  fscrypt: split up fscrypt_supported_policy() by policy version
  fscrypt: introduce fscrypt_needs_contents_encryption()
  fscrypt: move fscrypt_d_revalidate() to fname.c
  fscrypt: constify inode parameter to filename encryption functions
  fscrypt: constify struct fscrypt_hkdf parameter to fscrypt_hkdf_expand()
  fscrypt: verify that the crypto_skcipher has the correct ivsize
  fscrypt: use crypto_skcipher_driver_name()
  fscrypt: support passing a keyring key to FS_IOC_ADD_ENCRYPTION_KEY
  keys: Export lookup_user_key to external users

Conflicts:
        fs/crypto/Kconfig
        fs/crypto/bio.c
        fs/crypto/fname.c
        fs/crypto/fscrypt_private.h
        fs/crypto/keyring.c
        fs/crypto/keysetup.c
        fs/ubifs/dir.c
        include/uapi/linux/fscrypt.h

Resolved the conflicts as per the corresponding android-mainline change,
Ib1e6b9eda8fb5dcfc6bdc8fa89d93f72b088c5f6.

Bug: 148667616
Change-Id: I5f8b846f0cd4d5403d8c61b9e12acb4581fac6f7
Signed-off-by: Eric Biggers <ebiggers@google.com>
2020-02-21 08:11:19 -08:00
Eric Biggers
582a710ae9 ANDROID: ufs, block: fix crypto power management and move into block layer
The call to pm_runtime_get_sync() in ufshcd_program_key() can deadlock
because it waits for the UFS controller to be resumed, but it can itself
be reached while resuming the UFS controller via:

- ufshcd_runtime_resume()
  - ufshcd_resume()
    - ufshcd_reset_and_restore()
      - ufshcd_host_reset_and_restore()
        - ufshcd_hba_enable()
          - ufshcd_hba_execute_hce()
            - ufshcd_hba_start()
              - ufshcd_crypto_enable()
                - keyslot_manager_reprogram_all_keys()
                  - ufshcd_crypto_keyslot_program()
                    - ufshcd_program_key()

But pm_runtime_get_sync() *is* needed when evicting a key.  Also, on
pre-4.20 kernels it's needed when programming a keyslot for a bio since
the block layer used to resume the device in a different place.

Thus, it's hard for drivers to know what to do in .keyslot_program() and
.keyslot_evict().  In old kernels it may even be impossible unless we
were to pass more information down from the keyslot_manager.

There's also another possible deadlock: keyslot programming and eviction
take ksm->lock for write and then resume the device, which may result in
ksm->lock being taken again via the above call stack.  To fix this, we
should resume the device before taking ksm->lock.

Fix these problems by moving to a better design where the block layer
(namely, the keyslot manager) handles runtime power management instead
of drivers.  This is analogous to the block layer's existing runtime
power management support (blk-pm), which handles resuming devices when
bios are submitted to them so that drivers don't need to handle it.

Test: Tested on coral with:
        echo 5 > /sys/bus/platform/devices/1d84000.ufshc/rpm_lvl
        sleep 30
        touch /data && sync  # hangs before this fix
  Also verified via kvm-xfstests that blk-crypto-fallback continues
  to work both with and without CONFIG_PM=y.

Bug: 137270441
Bug: 149368295
Change-Id: I6bc9fb81854afe7edf490d71796ee68a61f7cbc8
Signed-off-by: Eric Biggers <ebiggers@google.com>
2020-02-21 16:00:33 +00:00
Jianqun Xu
5d41244299 ARM: dts: rockchip: fix rk3288 dts files
Change-Id: I7d4233dee5ee81166e666f1663793b09e15f5970
Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
Signed-off-by: Sandy Huang <hjc@rock-chips.com>
2020-02-21 18:29:44 +08:00
Ding Wei
372091ab47 arm64: dts: rockchip: rk3368: match new video driver mpp_serivce
Change-Id: I4bfacb3910f5fed42b8fe8f78f7997f0e650e6e9
Signed-off-by: Ding Wei <leo.ding@rock-chips.com>
2020-02-21 18:02:44 +08:00
Sandy Huang
cf2111c9fe drm/rockchip: fix drm mm operation conflict
the mm operation for logo memory will conflict with userspace
memory operation, so we add mm_lock to guaranteed no conflict.

Change-Id: If02310e3a9e48478124201edd94af38dd900944a
Signed-off-by: Sandy Huang <hjc@rock-chips.com>
2020-02-21 15:31:35 +08:00
Steve Muckle
0b145f91d8 ANDROID: rtc: class: support hctosys from modular RTC drivers
In order to support setting the system time from modular RTC drivers
via the hctosys mechanism, check at the end of RTC device registration
for whether the time should be synced, rather than once at late init.

Bug: 144103362
Bug: 143046457
Change-Id: I65d2fd14e075a65f2a23e1268b02c907c5245fb8
Signed-off-by: Steve Muckle <smuckle@google.com>
2020-02-20 15:30:22 -08:00
Paul Lawrence
b50d9aa3f3 ANDROID: Incremental fs: Support xattrs
To make selinux work, add xattr support. This is a bit clunky -
it seems like it would be better for the log and pending read
functionality to be ioctls rather than this mixture of real
and virtual files.

Bug: 133435829
Change-Id: I56579fabe2ae7efb88f0344553948dc9573299aa
Signed-off-by: Paul Lawrence <paullawrence@google.com>
2020-02-20 15:28:48 +00:00
Greg Kroah-Hartman
7a82472396 ANDROID: abi update for 4.19.105
Added new functions?  Odd...

Leaf changes summary: 7 artifacts changed
Changed leaf types summary: 0 leaf type changed
Removed/Changed/Added functions summary: 0 Removed, 0 Changed, 7 Added functions
Removed/Changed/Added variables summary: 0 Removed, 0 Changed, 0 Added variable

7 Added functions:

  [A] 'function void clear_page(void*)'
  [A] 'function void copy_page(void*, void*)'
  [A] 'function void* memcpy(void*, void*, unsigned long int)'
  [A] 'function void* memmove(void*, void*, unsigned long int)'
  [A] 'function void* memset(void*, int, unsigned long int)'
  [A] 'function unsigned long int strlen(const char*)'
  [A] 'function char* strrchr(const char*, int)'

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ie6ba6700dfee12dae12ac208df3a1a68189415e1
2020-02-20 08:33:16 +01:00
Greg Kroah-Hartman
c03c45ef97 Merge 4.19.105 into android-4.19
Changes in 4.19.105
	Input: synaptics - switch T470s to RMI4 by default
	Input: synaptics - enable SMBus on ThinkPad L470
	Input: synaptics - remove the LEN0049 dmi id from topbuttonpad list
	ALSA: usb-audio: Fix UAC2/3 effect unit parsing
	ALSA: hda/realtek - Fix silent output on MSI-GL73
	ALSA: usb-audio: Apply sample rate quirk for Audioengine D1
	arm64: cpufeature: Set the FP/SIMD compat HWCAP bits properly
	arm64: nofpsmid: Handle TIF_FOREIGN_FPSTATE flag cleanly
	ALSA: usb-audio: sound: usb: usb true/false for bool return type
	ALSA: usb-audio: Add clock validity quirk for Denon MC7000/MCX8000
	ext4: don't assume that mmp_nodename/bdevname have NUL
	ext4: fix support for inode sizes > 1024 bytes
	ext4: fix checksum errors with indexed dirs
	ext4: add cond_resched() to ext4_protect_reserved_inode
	ext4: improve explanation of a mount failure caused by a misconfigured kernel
	Btrfs: fix race between using extent maps and merging them
	btrfs: ref-verify: fix memory leaks
	btrfs: print message when tree-log replay starts
	btrfs: log message when rw remount is attempted with unclean tree-log
	ARM: npcm: Bring back GPIOLIB support
	arm64: ssbs: Fix context-switch when SSBS is present on all CPUs
	KVM: nVMX: Use correct root level for nested EPT shadow page tables
	perf/x86/amd: Add missing L2 misses event spec to AMD Family 17h's event map
	nvme: fix the parameter order for nvme_get_log in nvme_get_fw_slot_info
	IB/hfi1: Acquire lock to release TID entries when user file is closed
	IB/hfi1: Close window for pq and request coliding
	IB/rdmavt: Reset all QPs when the device is shut down
	RDMA/core: Fix invalid memory access in spec_filter_size
	RDMA/hfi1: Fix memory leak in _dev_comp_vect_mappings_create
	RDMA/rxe: Fix soft lockup problem due to using tasklets in softirq
	RDMA/core: Fix protection fault in get_pkey_idx_qp_list
	s390/time: Fix clk type in get_tod_clock
	perf/x86/intel: Fix inaccurate period in context switch for auto-reload
	hwmon: (pmbus/ltc2978) Fix PMBus polling of MFR_COMMON definitions.
	NFSv4.1 make cachethis=no for writes
	jbd2: move the clearing of b_modified flag to the journal_unmap_buffer()
	jbd2: do not clear the BH_Mapped flag when forgetting a metadata buffer
	KVM: x86/mmu: Fix struct guest_walker arrays for 5-level paging
	Linux 4.19.105

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I411bf0e21a24cee878f1a114175090e8fe69be46
2020-02-20 08:14:21 +01:00
Sandy Huang
581c39f3ed drm/rockchip: rgb: Add support srgb and srgb dummy mode
Change-Id: Ie5942b90dccec5cec74d1f1f2cbef835d95bdfd9
Signed-off-by: Sandy Huang <hjc@rock-chips.com>
2020-02-20 14:59:47 +08:00
Wyon Bi
dae8349425 drm/rockchip: lvds: avoid PLL unlock error
We need to enable lvds mode before calling phy_power_on.

Change-Id: I38625c44998bde81bb4c98b70b8be5995d64b477
Signed-off-by: Wyon Bi <bivvy.bi@rock-chips.com>
2020-02-20 11:32:33 +08:00
Zorro Liu
9d02fc38eb arm64: dts: rockchip: add gpio key and adc key config for rk3368-808 board
Change-Id: I5bc50d63eaddc268b296afce165343f558d43498
Signed-off-by: Zorro Liu <lyx@rock-chips.com>
2020-02-20 11:16:16 +08:00
Jianqun Xu
32364c4431 staging: android: add ion_legency driver
Add legency ion driver support, and rockchip ion driver
only(default) used by the legency ion.

Change-Id: I428d856e96033004943ee024e8d280f3e96753a1
Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
2020-02-20 09:52:49 +08:00
Jianqun Xu
1d8f622667 arm64: configs: rockchip_defconfig select ION_LEGENCY
Change-Id: I64663f9b838afeb66e0747c9660836796be1d424
Signed-off-by: Jianqun Xu <jay.xu@rock-chips.com>
2020-02-20 09:50:56 +08:00
Li Huang
b5773585ef dma-buf/sw_sync: Remove staic of sync_timeline_signal
Change-Id: Ie75f872afb41da5f5f8ad233828e939299a406a9
Signed-off-by: Li Huang <putin.li@rock-chips.com>
2020-02-20 09:14:15 +08:00
Tao Huang
94c42cd8e3 dma-buf/sync-file: Introduce sync_file_get and sync_file_put
For RK3368 Imagination PowerVR GPU driver.

Change-Id: I38f439801ee45212b18a619f1d8652d065e84434
Signed-off-by: Tao Huang <huangtao@rock-chips.com>
2020-02-20 09:00:33 +08:00
Andy Lutomirski
50297eab41 UPSTREAM: random: ignore GRND_RANDOM in getentropy(2)
The separate blocking pool is going away.  Start by ignoring
GRND_RANDOM in getentropy(2).

This should not materially break any API.  Any code that worked
without this change should work at least as well with this change.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Link: https://lore.kernel.org/r/705c5a091b63cc5da70c99304bb97e0109be0a26.1577088521.git.luto@kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
(cherry picked from commit 48446f198f)
Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Bug: 148665638
Change-Id: I2f99c4cdb5815951b0d42171c8fe4a4a671a2210
2020-02-19 14:34:34 -08:00
Andy Lutomirski
42e5d00a9f UPSTREAM: random: add GRND_INSECURE to return best-effort non-cryptographic bytes
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Link: https://lore.kernel.org/r/d5473b56cf1fa900ca4bd2b3fc1e5b8874399919.1577088521.git.luto@kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
(cherry picked from commit 75551dbf11)
Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Bug: 148665638
Change-Id: I1f0bac8752280f988ed5fcc34d361d87f5e86d85
2020-02-19 14:34:34 -08:00