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Current driver programs static value of MSS in hardware register for TSO
offload engine to segment the TCP payload regardless the MSS value
provided by network stack.
This patch fixes this by programming hardware registers with the
stack provided MSS value.
Since the hardware has the limitation of having only 4 MSS registers,
this patch uses reference count of mss values being used.
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Toan Le <toanle@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Change predecrement compare to post decrement compare to avoid an
unsigned integer wrap-around comparison when decrementing idx in
the while loop.
For example, when idx is zero, the current situation will
predecrement idx in the while loop, wrapping idx to the maximum
signed integer and cause out of bounds reads on rxq_info->msix_tbl[idx].
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Saeed Mahameed says:
====================
Mellanox 100G SRIOV offloads vlan push/pop
From Or Gerlitz:
This series further enhances the SRIOV TC offloads of mlx5 to handle
the TC vlan push and pop actions. This serves a common use-case in
virtualization systems where the virtual switch add (push) vlan tags
to packets sent from VMs and removes (pop) vlan tags before the packet
is received by the VM. We use the new E-Switch switchdev mode and the
TC vlan action to achieve that also in SW defined SRIOV environments by
offloading TC rules that contain this action along with forwarding
(TC mirred/redirect action) the packet.
In the first patch we add some helpers to access the TC vlan action info
by offloading drivers. The next five patches don't add any new functionality,
they do some refactoring and cleanups in the current code to be used next.
The seventh patch deals with supporting vlans by the mlx5 e-switch in switchdev
mode. The eighth patch does the vlan action offload from TC and the last patch
adds matching for vlans as typically required by TC flows that involve vlan
pop action.
The series was applied on top of commit 524605e "cxgb4: Convert to use simple_open()"
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Enhance the parsing of offloaded TC rules matches to handle vlans.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Parse TC vlan actions and set the required elements to allow offloading.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Many virtualization systems use a policy under which a vlan tag is
pushed to packets sent by guests, and popped before the packet is
forwarded to the VM.
The current generation of the mlx5 HW doesn't fully support that on
a per flow level. As such, we are addressing the above common use
case with the SRIOV e-Switch abilities to push vlan into packets
sent by VFs and pop vlan from packets forwarded to VFs.
The HW can match on the correct vlan being present in packets
forwarded to VFs (eSwitch steering is done before stripping
the tag), so this part is offloaded as is.
A common practice for vlans is to avoid both push vlan and pop vlan
for inter-host VM/VM (east-west) communication because in this case,
push on egress cancels out with pop on ingress.
For supporting that, we use a global eswitch vlan pop policy, hence
allowing guest A to communicate with both remote VM B and local VM C.
This works since the HW pops the vlan only if it exists (e.g for
C --> A packets but not for B --> A packets).
On the slow path, when a VF vport has an offloaded flow which involves
pushing vlans, wheres another flow is not currently offloaded, the
packets from the 2nd flow seen by the VF representor on the host have
vlan. The VF rep driver removes such vlan before calling into the host
networking stack.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Factor the relevant code into a static inline helper (skb_from_cqe)
doing that.
Move the call to napi_gro_receive to be carried out just
after mlx5e_complete_rx_cqe returns.
Both changes are to be used for the VF representor as well
in the next commit.
This patch doesn't change any functionality.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Put the representors related to the source and dest vports and the
action in struct mlx5_esw_flow_attr which is used while setting the FDB rule.
This patch doesn't change any functionality.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The HW can be programmed to push vlan, pop vlan or both.
A factorization step towards using the push/pop capabilties in the
eswitch offloads mode. This patch doesn't add new functionality.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The structure we use for the eswitch vport representor (mlx5_eswitch_rep)
has some fields which are set from upper layers in the driver when they
register the rep. Use explicit setting on registration time for them and
avoid global memcpy. This patch doesn't add new functionality.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Set the vport value in the PF entry to be that of the uplink so
we can use it blindly over the tc / eswitch offload code without
translating it each time we deal with the uplink representor.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Needed e.g for offloading drivers to pick the relevant attributes.
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It looks like the following patch can make FQ very precise, even in VM
or stressed hosts. It matters at high pacing rates.
We take into account the difference between the time that was programmed
when last packet was sent, and current time (a drift of tens of usecs is
often observed)
Add an EWMA of the unthrottle latency to help diagnostics.
This latency is the difference between current time and oldest packet in
delayed RB-tree. This accounts for the high resolution timer latency,
but can be different under stress, as fq_check_throttled() can be
opportunistically be called from a dequeue() called after an enqueue()
for a different flow.
Tested:
// Start a 10Gbit flow
$ netperf --google-pacing-rate 1250000000 -H lpaa24 -l 10000 -- -K bbr &
Before patch :
$ sar -n DEV 10 5 | grep eth0 | grep Average
Average: eth0 17106.04 756876.84 1102.75 1119049.02 0.00 0.00 0.52
After patch :
$ sar -n DEV 10 5 | grep eth0 | grep Average
Average: eth0 17867.00 800245.90 1151.77 1183172.12 0.00 0.00 0.52
A new iproute2 tc can output the 'unthrottle latency' :
$ tc -s qd sh dev eth0 | grep latency
0 gc, 0 highprio, 32490767 throttled, 2382 ns latency
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add a NULL check before calling asynchronous MCDI completion functions
during device removal.
Fixes: 7014d7f6 ("sfc: allow asynchronous MCDI without completion function")
Signed-off-by: Bert Kenward <bkenward@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Marcelo Ricardo Leitner says:
====================
sctp: fix the handling of SACK Gap Ack blocks
sctp_acked() is using 32bit arithmetics on 16bits vars, via TSN_lte()
macros, which is weird and confusing.
Once the offset to ctsn is calculated, all wrapping is already handled
and thus to verify the Gap Ack blocks we can just use pure
less/big-or-equal than checks.
Also, rename gap variable to tsn_offset, so it's more meaningful, as
it doesn't point to any gap at all.
Even so, I don't think this discrepancy resulted in any practical bug.
This patch is a preparation for the next one, which will introduce
typecheck() for TSN_lte() macros and would cause a compile error here.
Suggested-by: David Laight <David.Laight@ACULAB.COM>
Reported-by: David Laight <David.Laight@ACULAB.COM>
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Make it similar to time_before() macros:
- easier to understand
- make use of typecheck() to avoid working on unexpected variable types
(made the issue on previous patch visible)
- for _[lg]te versions, slighly faster, as the compiler used to generate
a sequence of cmp/je/cmp/js instructions and now it's sub/test/jle
(for _lte):
Before, for sctp_outq_sack:
if (primary->cacc.changeover_active) {
1f01: 80 b9 84 02 00 00 00 cmpb $0x0,0x284(%rcx)
1f08: 74 6e je 1f78 <sctp_outq_sack+0xe8>
u8 clear_cycling = 0;
if (TSN_lte(primary->cacc.next_tsn_at_change, sack_ctsn)) {
1f0a: 8b 81 80 02 00 00 mov 0x280(%rcx),%eax
return ((s) - (t)) & TSN_SIGN_BIT;
}
static inline int TSN_lte(__u32 s, __u32 t)
{
return ((s) == (t)) || (((s) - (t)) & TSN_SIGN_BIT);
1f10: 8b 7d bc mov -0x44(%rbp),%edi
1f13: 39 c7 cmp %eax,%edi
1f15: 74 25 je 1f3c <sctp_outq_sack+0xac>
1f17: 39 f8 cmp %edi,%eax
1f19: 78 21 js 1f3c <sctp_outq_sack+0xac>
primary->cacc.changeover_active = 0;
After:
if (primary->cacc.changeover_active) {
1ee7: 80 b9 84 02 00 00 00 cmpb $0x0,0x284(%rcx)
1eee: 74 73 je 1f63 <sctp_outq_sack+0xf3>
u8 clear_cycling = 0;
if (TSN_lte(primary->cacc.next_tsn_at_change, sack_ctsn)) {
1ef0: 8b 81 80 02 00 00 mov 0x280(%rcx),%eax
1ef6: 2b 45 b4 sub -0x4c(%rbp),%eax
1ef9: 85 c0 test %eax,%eax
1efb: 7e 26 jle 1f23 <sctp_outq_sack+0xb3>
primary->cacc.changeover_active = 0;
*_lt() generated pretty much the same code.
Tested with gcc (GCC) 6.1.1 20160621.
This patch also removes SSN_lte as it is not used and cleanups some
comments.
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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sctp_acked() is using 32bit arithmetics on 16bits vars, via TSN_lte()
macros, which is weird and confusing.
Once the offset to ctsn is calculated, all wrapping is already handled
and thus to verify the Gap Ack blocks we can just use pure
less/big-or-equal than checks.
Also, rename gap variable to tsn_offset, so it's more meaningful, as
it doesn't point to any gap at all.
Even so, I don't think this discrepancy resulted in any practical bug.
This patch is a preparation for the next one, which will introduce
typecheck() for TSN_lte() macros and would cause a compile error here.
Suggested-by: David Laight <David.Laight@ACULAB.COM>
Reported-by: David Laight <David.Laight@ACULAB.COM>
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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On error path in route4_change(), 'f' could be NULL,
so we should check NULL before calling tcf_exts_destroy().
Fixes: b9a24bb76bf6 ("net_sched: properly handle failure case of tcf_exts_init()")
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
- several fixes for new drivers added for Kernel 4.8 addition (cec
core, pulse8 cec driver and Mediatek vcodec)
- a regression fix for cx23885 and saa7134 drivers
- an important fix for rcar-fcp, making rcar_fcp_enable() return 0 on
success
* tag 'media/v4.8-7' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (25 commits)
[media] cx23885/saa7134: assign q->dev to the PCI device
[media] rcar-fcp: Make sure rcar_fcp_enable() returns 0 on success
[media] cec: fix ioctl return code when not registered
[media] cec: don't Feature Abort broadcast msgs when unregistered
[media] vcodec:mediatek: Refine VP8 encoder driver
[media] vcodec:mediatek: Refine H264 encoder driver
[media] vcodec:mediatek: change H264 profile default to profile high
[media] vcodec:mediatek: Add timestamp and timecode copy for V4L2 Encoder
[media] vcodec:mediatek: Fix visible_height larger than coded_height issue in s_fmt_out
[media] vcodec:mediatek: Fix fops_vcodec_release flow for V4L2 Encoder
[media] vcodec:mediatek:code refine for v4l2 Encoder driver
[media] cec-funcs.h: add missing vendor-specific messages
[media] cec-edid: check for IEEE identifier
[media] pulse8-cec: fix error handling
[media] pulse8-cec: set correct Signal Free Time
[media] mtk-vcodec: add HAS_DMA dependency
[media] cec: ignore messages when log_addr_mask == 0
[media] cec: add item to TODO
[media] cec: set unclaimed addresses to CEC_LOG_ADDR_INVALID
[media] cec: add CEC_LOG_ADDRS_FL_ALLOW_UNREG_FALLBACK flag
...
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Fix a regression caused by commit 2bc46b3ad3c1 ("[media] media/pci:
convert drivers to use the new vb2_queue dev field").
Three places where q->dev should be set were missed, causing
a WARN.
Fixes: 2bc46b3ad3c1 ("[media] media/pci: convert drivers to use the new vb2_queue dev field").
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reported-by: Marton Balint <cus@passwd.hu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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When resuming from suspend-to-RAM on r8a7795/salvator-x:
dpm_run_callback(): pm_genpd_resume_noirq+0x0/0x90 returns 1
PM: Device fe940000.fdp1 failed to resume noirq: error 1
dpm_run_callback(): pm_genpd_resume_noirq+0x0/0x90 returns 1
PM: Device fe944000.fdp1 failed to resume noirq: error 1
dpm_run_callback(): pm_genpd_resume_noirq+0x0/0x90 returns 1
PM: Device fe948000.fdp1 failed to resume noirq: error 1
According to its documentation, rcar_fcp_enable() returns 0 on success
or a negative error code if an error occurs. Hence
fdp1_pm_runtime_resume() and vsp1_pm_runtime_resume() forward its return
value to their callers.
However, rcar_fcp_enable() forwards the return value of
pm_runtime_get_sync(), which can actually be 1 on success, leading to
the resume failure above.
To fix this, consider only negative values returned by
pm_runtime_get_sync() to be failures.
Fixes: 7b49235e83b2347c ("[media] v4l: Add Renesas R-Car FCP driver")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Don't return the confusing -EIO error code when the device is not registered,
instead return -ENODEV which is the proper thing to do in this situation.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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If the adapter is configured as 'Unregistered', then cec_receive_notify
incorrectly thinks that broadcast messages are directed messages. The
destination for broadcast messages is 0xf, and the logical address
assigned to Unregistered devices is also 0xf and the logic didn't handle
that correctly.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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This patch remove field and function that unused anymore
Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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This patch :
1. remove field and function that unused anymore
2. add support V4L2_MPEG_VIDEO_H264_LEVEL_4_2
Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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This patch change default H264 profile from V4L2_MPEG_VIDEO_H264_PROFILE_MAIN
to V4L2_MPEG_VIDEO_H264_PROFILE_HIGH
Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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This patch add copying timestamp and timecode from src buffer to dst buffer
Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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in s_fmt_out
The original code add extra 32 line to visible_height.
It is incorrect, 32 line should be add to coded_height.
The purpose is that user space could calcuate real buffer size needed by using
coded_width * coded_height.
But this method will make v4l2-compliance test fail, since g_fmt != s_fmt(g_fmt)
So remove extend visible_height or coded_height, user space should just
use sizeimage to get real buffer size needed
Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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This patch fix that mtk_vcodec_venc_release should be called after v4l2_m2m_ctx_release
Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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This patch remove unused header and define from haeder files
Signed-off-by: Tiffany Lin <tiffany.lin@mediatek.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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The cec-funcs.h header was missing support for these three vendor-specific messages:
CEC_MSG_VENDOR_COMMAND
CEC_MSG_VENDOR_COMMAND_WITH_ID
CEC_MSG_VENDOR_REMOTE_BUTTON_DOWN
Add wrappers for these messages.
I originally postponed adding these wrappers due to the fact that the argument is
just a byte array which cec-ctl couldn't handle at the time, and then I just forgot
to add them once the CEC framework was finalized.
It wasn't until an attempt to transmit a vendor specific command was made that I
realized that these wrappers were missing.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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The cec_get_edid_spa_location() function did not verify that the IEEE
identifier in the Vendor Specific Data Block matched the HDMI-LLC
identifier. This could result in the wrong VSDB block being returned.
For example, for HDMI 2.0 EDIDs there is also a HDMI Forum VSDB.
So check the IEEE identifier as well.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Support more error codes and fix a bug where MSGCODE_TRANSMIT_FAILED_LINE
was mapped to CEC_TX_STATUS_ARB_LOST, which is wrong.
Thanks to Pulse-Eight for providing me with the information needed
to handle this correctly (I hope).
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Don't hardcode the signal free time to 3 bit periods, instead use
the value for the signal free time as passed in by the CEC framework.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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This fixes this kbuild test robot error:
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 329f4152911c276b074bec75a0443f88821afdb7
commit: c1023ba74fc77dc56dc317bd98f5060aab889ac1 [media] drivers/media/platform/Kconfig: fix VIDEO_MEDIATEK_VCODEC dependency
config: m32r-allyesconfig (attached as .config)
compiler: m32r-linux-gcc (GCC) 4.9.0
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout c1023ba74fc77dc56dc317bd98f5060aab889ac1
# save the attached .config to linux build tree
make.cross ARCH=m32r
All errors (new ones prefixed by >>):
drivers/media/v4l2-core/videobuf2-dma-contig.c: In function 'vb2_dc_get_userptr':
>> >> drivers/media/v4l2-core/videobuf2-dma-contig.c:486:2: error: implicit declaration of function 'dma_get_cache_alignment' [-Werror=implicit-function-declaration]
unsigned long dma_align = dma_get_cache_alignment();
^
cc1: some warnings being treated as errors
This driver depends on HAS_DMA for dma_get_cache_alignment().
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Most CEC adapters will still receive broadcast messages, even if no logical
addresses are claimed. But those messages should only be passed on for
monitoring purposes, but not for processing by either kernel or userspace
if userspace didn't call CEC_ADAP_S_LOG_ADDRS first.
So if adap->log_addrs.log_addr_mask is 0, then just return before passing
the received message on to the processing code.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Up to 4 logical addresses can be claimed. Make sure that any
unclaimed logical addresses are set to CEC_LOG_ADDR_INVALID as
per the documentation.
Take special care in the unregistered case: when falling back to
unregistered num_log_addrs may be > 1, so mark those as invalid.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Currently if none of the requested logical addresses can be claimed, the
framework will fall back to the Unregistered logical address.
Add a flag to enable this explicitly. By default it will just go back to
the unconfigured state.
Usually Unregistered is not something you want since the functionality is
very limited. Unless the application has support for this, it will fail
to work correctly. So require that the application explicitly requests
this.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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The documentation for the cec_event_state_change struct was incomplete.
This patch documents what happens in the corner cases.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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A reply parameter is added to the cec_msg_record_on/off functions in
cec-funcs.h. The standard mandates that Record Status shall be replied
to Record On, and it may be replied to Record Off.
Signed-off-by: Johan Fjeldtvedt <jaffe1@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Fix typo where logical AND was used instead of bitwise AND.
Reported-by: David Binderman <linuxdev.baldrick@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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- The global lock was used in cec_get_device when it should have
used the devnode lock.
- cec_put_device also took the global lock, but since the release
function takes that lock as well this could lead to a deadlock.
Just don't take the lock here since there is no reason for it.
- cec_devnode_register() should take the global lock when clearing
the bit in the global bitmap.
- In cec_devnode_unregister() place the devnode->(un)register tests
and assignments under the devnode lock as well: this has to be
in a critical block.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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This lock will be used to protect more than just the fhs list.
So rename it to just 'lock'.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Pull networking fixes from David Miller:
"Mostly small bits scattered all over the place, which is usually how
things go this late in the -rc series.
1) Proper driver init device resets in bnx2, from Baoquan He.
2) Fix accounting overflow in __tcp_retransmit_skb(),
sk_forward_alloc, and ip_idents_reserve, from Eric Dumazet.
3) Fix crash in bna driver ethtool stats handling, from Ivan Vecera.
4) Missing check of skb_linearize() return value in mac80211, from
Johannes Berg.
5) Endianness fix in nf_table_trace dumps, from Liping Zhang.
6) SSN comparison fix in SCTP, from Marcelo Ricardo Leitner.
7) Update DSA and b44 MAINTAINERS entries.
8) Make input path of vti6 driver work again, from Nicolas Dichtel.
9) Off-by-one in mlx4, from Sebastian Ott.
10) Fix fallback route lookup handling in ipv6, from Vincent Bernat.
11) Fix stack corruption on probe in qed driver, from Yuval Mintz.
12) PHY init fixes in r8152 from Hayes Wang.
13) Missing SKB free in irda_accept error path, from Phil Turnbull"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (61 commits)
tcp: properly account Fast Open SYN-ACK retrans
tcp: fix under-accounting retransmit SNMP counters
MAINTAINERS: Update b44 maintainer.
net: get rid of an signed integer overflow in ip_idents_reserve()
net/mlx4_core: Fix to clean devlink resources
net: can: ifi: Configure transmitter delay
vti6: fix input path
ipmr, ip6mr: return lastuse relative to now
r8152: disable ALDPS and EEE before setting PHY
r8152: remove r8153_enable_eee
r8152: move PHY settings to hw_phy_cfg
r8152: move enabling PHY
r8152: move some functions
cxgb4/cxgb4vf: Allocate more queues for 25G and 100G adapter
qed: Fix stack corruption on probe
MAINTAINERS: Add an entry for the core network DSA code
net: ipv6: fallback to full lookup if table lookup is unsuitable
net/mlx5: E-Switch, Handle mode change failures
net/mlx5: E-Switch, Fix error flow in the SRIOV e-switch init code
net/mlx5: Fix flow counter bulk command out mailbox allocation
...
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Since the TFO socket is accepted right off SYN-data, the socket
owner can call getsockopt(TCP_INFO) to collect ongoing SYN-ACK
retransmission or timeout stats (i.e., tcpi_total_retrans,
tcpi_retransmits). Currently those stats are only updated
upon handshake completes. This patch fixes it.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fixes these under-accounting SNMP rtx stats
LINUX_MIB_TCPFORWARDRETRANS
LINUX_MIB_TCPFASTRETRANS
LINUX_MIB_TCPSLOWSTARTRETRANS
when retransmitting TSO packets
Fixes: 10d3be569243 ("tcp-tso: do not split TSO packets at retransmit time")
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec
Steffen Klassert says:
====================
pull request (net): ipsec 2016-09-21
1) Propagate errors on security context allocation.
From Mathias Krause.
2) Fix inbound policy checks for inter address family tunnels.
From Thomas Zeitlhofer.
3) Fix an old memory leak on aead algorithm usage.
From Ilan Tayari.
4) A recent patch fixed a possible NULL pointer dereference
but broke the vti6 input path.
Fix from Nicolas Dichtel.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Since commit 1625f4529957, vti6 is broken, all input packets are dropped
(LINUX_MIB_XFRMINNOSTATES is incremented).
XFRM_TUNNEL_SKB_CB(skb)->tunnel.ip6 is set by vti6_rcv() before calling
xfrm6_rcv()/xfrm6_rcv_spi(), thus we cannot set to NULL that value in
xfrm6_rcv_spi().
A new function xfrm6_rcv_tnl() that enables to pass a value to
xfrm6_rcv_spi() is added, so that xfrm6_rcv() is not touched (this function
is used in several handlers).
CC: Alexey Kodanev <alexey.kodanev@oracle.com>
Fixes: 1625f4529957 ("net/xfrm_input: fix possible NULL deref of tunnel.ip6->parms.i_key")
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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