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798,688 commits

Author SHA1 Message Date
YueHaibing
48c29d0d27
spi: spi-gpio: Remove set but not used variable 'pdata'
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/spi/spi-gpio.c: In function 'spi_gpio_remove':
drivers/spi/spi-gpio.c:450:33: warning:
 variable 'pdata' set but not used [-Wunused-but-set-variable]

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-06 11:35:11 +01:00
Zhang Rui
f11fc4bc66 ACPI / LPSS: Force LPSS quirks on boot
Commit 12864ff854 (ACPI / LPSS: Avoid PM quirks on suspend and resume
from hibernation) bypasses lpss quirks for S3 and S4, by setting a flag
for S3/S4 in acpi_lpss_suspend(), and check that flag in
acpi_lpss_resume().

But this overlooks the boot case where acpi_lpss_resume() may get called
without a corresponding acpi_lpss_suspend() having been called.

Thus force setting the flag during boot.

Fixes: 12864ff854 (ACPI / LPSS: Avoid PM quirks on suspend and resume from hibernation)
Link: https://bugzilla.kernel.org/show_bug.cgi?id=200989
Reported-and-tested-by: William Lieurance <william.lieurance@namikoda.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Cc: 4.15+ <stable@vger.kernel.org> # 4.15+: 12864ff854 (ACPI / LPSS: Avoid ...)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-09-06 12:23:25 +02:00
Jean Delvare
5d128fbd8b ACPI / bus: Only call dmi_check_system() on X86
Calling dmi_check_system() early only works on X86. Other
architectures initialize the DMI subsystem later so it's not
ready yet when ACPI itself gets initialized.

In the best case it results in a useless call to a function which
will do nothing. But depending on the dmi implementation, it could
also result in warnings. Best is to not call the function when it
can't work and isn't needed.

Additionally, if anyone ever needs to add non-x86 quirks, it would
surprisingly not work, so document the limitation to avoid confusion.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Fixes: cce4f632db (ACPI: fix early DSDT dmi check warnings on ia64)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-09-06 12:16:29 +02:00
Kuninori Morimoto
dabdbe3ae0
ASoC: rsnd: don't use %p for dev_dbg()
rsnd driver sometimes want to know which address is used when debugging.
But it will indicate "(____ptrval____)" if it used "%p" on dev_dbg().
Let's use "%pa" or "%px" for it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-06 11:13:43 +01:00
Kuninori Morimoto
6c92d5a274
ASoC: rsnd: don't fallback to PIO mode when -EPROBE_DEFER
Current rsnd driver will fallback to PIO mode if it can't get DMA
handler. But, DMA might return -EPROBE_DEFER when probe timing.
This driver always fallback to PIO mode especially from
commit ac6bbf0cdf ("iommu: Remove IOMMU_OF_DECLARE") because
of this reason.

The DMA driver will be probed later, but sound driver might be
probed as PIO mode in such case. This patch fixup this issue.
Then, -EPROBE_DEFER is not error. Thus, let's don't indicate error
message in such case.
And it needs to call rsnd_adg_remove() individually if probe failed,
because it registers clk which should be unregister.

Maybe PIO fallback feature itself is not needed,
but let's keep it so far.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-06 11:13:24 +01:00
Kuninori Morimoto
69235ccf49
ASoC: rsnd: adg: care clock-frequency size
ADG has buffer over flow bug if DT has more than 3 clock-frequency.
This patch fixup this issue, and uses first 2 values.

	clock-frequency = <x y>;	/* this is OK */
	clock-frequency = <x y z>;	/* this is NG */

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Tested-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-06 11:12:52 +01:00
Kuninori Morimoto
501683d0cd
ASoC: rsnd: gen: use tab instead of white-space
commit 8c9d750333 ("ASoC: rsnd: ssiu: Support BUSIF
other than BUSIF0") added new SSIU registers.
But it is using white-space for it.
This patch fixup it to use tab.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-06 11:12:30 +01:00
Colin Ian King
c24fb71fa4
ASoC: hdac_hdmi: remove redundant check for !port condition
The !port check is redundant as it being performed in the following
check. Remove it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-06 11:12:26 +01:00
Geert Uytterhoeven
1926bd6bf2 ARM: dts: r9a06g032: Use r9a06g032-sysctrl binding definitions
Replace the hardcoded clock indices by R9A06G032_CLK_* symbols.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-09-06 11:31:35 +02:00
Sergei Shtylyov
c1801ad028 arm64: enable CMT/TMU support for Renesas SoC
Renesas R-Car gen3 SoCs have both CMT and TMU timers, so we have to enable
building them in Kconfig.platforms (as they don't normally have the prompts
in Kconfig).

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2018-09-06 11:28:13 +02:00
Greg Kroah-Hartman
bfa150f37f usb: fixes for v4.19-rc2
NET2280 got a fix to an old patch attempting to fix locking for gadget
 framework callbacks.
 
 DWC2 fixed a bug where driver was attempting to access registers before
 clocks were enabled.
 
 DWC3 got a fix for ULPI clock configuration on Baytrail devices.
 
 FOTG210 plugged a memory leak and Renesas USB3 fixed ep0 maxpacket size.
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Merge tag 'fixes-for-v4.19-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus

Felipe writes:

usb: fixes for v4.19-rc2

NET2280 got a fix to an old patch attempting to fix locking for gadget
framework callbacks.

DWC2 fixed a bug where driver was attempting to access registers before
clocks were enabled.

DWC3 got a fix for ULPI clock configuration on Baytrail devices.

FOTG210 plugged a memory leak and Renesas USB3 fixed ep0 maxpacket size.
2018-09-06 11:21:54 +02:00
Chunming Zhou
9a09a42369 drm: expand replace_fence to support timeline point v2
we can place a fence to a timeline point after expanded.
v2: change func parameter order

Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/246543/
2018-09-06 11:09:31 +02:00
Chunming Zhou
0a6730ea27 drm: expand drm_syncobj_find_fence to support timeline point v2
we can fetch timeline point fence after expanded.
v2: The parameter fence is the result of the function and should come last.

Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/246541/
2018-09-06 11:09:19 +02:00
Chunming Zhou
e28bd101ae drm: rename null fence to stub fence in syncobj v2
moved to front of file.
stub fence will be used by timeline syncobj as well.

Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Cc: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/246539/
2018-09-06 11:09:08 +02:00
Chunming Zhou
94e4c5305a drm: fix syncobj null_fence_enable_signaling
That is certainly totally nonsense. dma_fence_enable_sw_signaling()
is the function who is calling this callback.

Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Cc: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Christian König <christian.koenig@amd.com>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/246535/
2018-09-06 11:08:53 +02:00
Chris Wilson
70109354fe drm: Reject unknown legacy bpp and depth for drm_mode_addfb ioctl
Since this is handling user provided bpp and depth, we need to sanity
check and propagate the EINVAL back rather than assume what the insane
client intended and fill the logs with DRM_ERROR.

v2: Check both bpp and depth match the builtin pixel format, and
introduce a canonical DRM_FORMAT_INVALID to reserve 0 against any future
fourcc.

v3: Mark up DRM_FORMAT_C8 as being {bpp:8, depth:8}

Testcase: igt/kms_addfb_basic/legacy-format
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180905153116.28924-1-chris@chris-wilson.co.uk
2018-09-06 08:07:41 +01:00
Gerd Hoffmann
6960e6da9c drm: fix drm_mode_addfb() on big endian machines.
Userspace on big endian machhines typically expects the ADDFB ioctl
returns a big endian framebuffer.  drm_mode_addfb() will call
drm_mode_addfb2() unconditionally with little endian DRM_FORMAT_*
values though, which is wrong.  This patch fixes that.

Drivers (both kernel and xorg) have quirks in place to deal with the
broken drm_mode_addfb() behavior.  Because of this we can't just change
drm_mode_addfb() behavior for everybody without breaking things.  Add
the quirk_addfb_prefer_host_byte_order field to mode_config, so drivers
can opt-in.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20180905060445.15008-5-kraxel@redhat.com
2018-09-06 08:40:19 +02:00
Gerd Hoffmann
00409fd6f1 drm: do not mask out DRM_FORMAT_BIG_ENDIAN
framebuffer_check() expects that drm_get_format_info() will not fail if
the __drm_format_info() call was successful.  That'll work only in case
both are called with the same pixel_format value, so masking out the
DRM_FORMAT_BIG_ENDIAN flag isn't a good idea.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20180905060445.15008-4-kraxel@redhat.com
2018-09-06 08:40:18 +02:00
Gerd Hoffmann
ec2fae2558 drm: byteorder: add DRM_FORMAT_HOST_*
Add fourcc variants in host byte order.  With these at hand we don't
need #ifdefs in drivers which support framebuffers in cpu endianess.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20180905060445.15008-3-kraxel@redhat.com
2018-09-06 08:40:18 +02:00
Gerd Hoffmann
0e94043ee1 drm: replace DRIVER_PREFER_XBGR_30BPP driver flag with mode_config quirk
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20180905060445.15008-2-kraxel@redhat.com
2018-09-06 08:40:17 +02:00
David S. Miller
fce471e3c1 Merge branch 'iucv-fixes'
Julian Wiedmann says:

====================
net/iucv: fixes 2018-09-05

please apply three straight-forward fixes for iucv. One that prevents
leaking the skb on malformed inbound packets, one to fix the error
handling on transmit error, and one to get rid of a compile warning.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:32:22 -07:00
Julian Wiedmann
b7f4156554 net/iucv: declare iucv_path_table_empty() as static
Fixes a compile warning.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:32:22 -07:00
Julian Wiedmann
b2f543949a net/af_iucv: fix skb handling on HiperTransport xmit error
When sending an skb, afiucv_hs_send() bails out on various error
conditions. But currently the caller has no way of telling whether the
skb was freed or not - resulting in potentially either
a) leaked skbs from iucv_send_ctrl(), or
b) double-free's from iucv_sock_sendmsg().

As dev_queue_xmit() will always consume the skb (even on error), be
consistent and also free the skb from all other error paths. This way
callers no longer need to care about managing the skb.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:32:22 -07:00
Julian Wiedmann
222440996d net/af_iucv: drop inbound packets with invalid flags
Inbound packets may have any combination of flag bits set in their iucv
header. If we don't know how to handle a specific combination, drop the
skb instead of leaking it.

To clarify what error is returned in this case, replace the hard-coded
0 with the corresponding macro.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:32:21 -07:00
David S. Miller
6ef848efc2 Merge branch 'rtnetlink-add-IFA_TARGET_NETNSID-for-RTM_GETADDR'
Christian Brauner says:

====================
rtnetlink: add IFA_TARGET_NETNSID for RTM_GETADDR

This iteration should mainly addresses the suggestion to use
IFA_TARGET_NETNSID as the property name. Additionally, an an alias for
the already existing IFLA_IF_NETNSID property is added.

Note that two additional cleanup patches (8\9 and 9\9) were added to
address concerns raised that passing more than 6 arguments to a function
will cause additional variables to be pushed onto the stack instead of
being placed into registers. The way I addressed this is by introducing
two new struct inet{6}_fill_args that are used to pass common
information down to inet{6}_fill_if*() functions shortening all those
functions to three pointer arguments.
If this is something more people than Kirill find useful they can be
kept if not they can simply be dropped in later iterations of this
series or when merging.

Here is a short overview:
1. Rename from IFA_IF_NETNSID to IFA_TARGET_NETNSID.
2. Add IFLA_TARGET_NETNSID as an alias for IFA_IFLA_NETNSID and switch
   all occurrences over to the new alias.
3. Add inet4_fill_args struct to avoid passing more than 6 arguments in
   inet_fill_if*() functions.
4. Add inet6_fill_args struct to avoid passing more than 6 arguments in
   inet_fill_if*() functions.

The only functional change is the export of rtnl_get_net_ns_capable()
which is needed in case ipv6 is built as a module.

Note, I did not change the property name to IFA_TARGET_NSID as there was
no clear agreement what would be preferred. My personal preference is to
keep the IFA_IF_NETNSID name because it aligns naturally with the
IFLA_IF_NETNSID property for RTM_*LINK requests. Jiri seems to prefer
this name too.
However, if there is agreement that another property name makes more
sense I'm happy to send a v2 that changes this.

To test this patchset I performed 1 million getifaddrs() requests
against a network namespace containing 5 interfaces (lo, eth{0-4}). The
first test used a network namespace aware getifaddrs() implementation I
wrote and the second test used the traditional setns() + getifaddrs()
method. The results show that this patchsets allows userspace to cut
retrieval time in half:
1. netns_getifaddrs():      82 microseconds
2. setns() + getifaddrs(): 162 microseconds

A while back we introduced and enabled IFLA_IF_NETNSID in
RTM_{DEL,GET,NEW}LINK requests (cf. [1], [2], [3], [4], [5]). This has led
to signficant performance increases since it allows userspace to avoid
taking the hit of a setns(netns_fd, CLONE_NEWNET), then getting the
interfaces from the netns associated with the netns_fd. Especially when a
lot of network namespaces are in use, using setns() becomes increasingly
problematic when performance matters.
Usually, RTML_GETLINK requests are followed by RTM_GETADDR requests (cf.
getifaddrs() style functions and friends). But currently, RTM_GETADDR
requests do not support a similar property like IFLA_IF_NETNSID for
RTM_*LINK requests.
This is problematic since userspace can retrieve interfaces from another
network namespace by sending a IFLA_IF_NETNSID property along but
RTM_GETLINK request but is still forced to use the legacy setns() style of
retrieving interfaces in RTM_GETADDR requests.

The goal of this series is to make it possible to perform RTM_GETADDR
requests on different network namespaces. To this end a new IFA_IF_NETNSID
property for RTM_*ADDR requests is introduced. It can be used to send a
network namespace identifier along in RTM_*ADDR requests.  The network
namespace identifier will be used to retrieve the target network namespace
in which the request is supposed to be fulfilled.  This aligns the behavior
of RTM_*ADDR requests with the behavior of RTM_*LINK requests.

- The caller must have assigned a valid network namespace identifier for
  the target network namespace.
- The caller must have CAP_NET_ADMIN in the owning user namespace of the
  target network namespace.

[1]: commit 7973bfd875 ("rtnetlink: remove check for IFLA_IF_NETNSID")
[2]: commit 5bb8ed0754 ("rtnetlink: enable IFLA_IF_NETNSID for RTM_NEWLINK")
[3]: commit b61ad68a9f ("rtnetlink: enable IFLA_IF_NETNSID for RTM_DELLINK")
[4]: commit c310bfcb6e ("rtnetlink: enable IFLA_IF_NETNSID for RTM_SETLINK")
[5]: commit 7c4f63ba82 ("rtnetlink: enable IFLA_IF_NETNSID in do_setlink()")
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:27:12 -07:00
Christian Brauner
203651b665 ipv6: add inet6_fill_args
inet6_fill_if{addr,mcaddr, acaddr}() already took 6 arguments which
meant the 7th argument would need to be pushed onto the stack on x86.
Add a new struct inet6_fill_args which holds common information passed
to inet6_fill_if{addr,mcaddr, acaddr}() and shortens the functions to
three pointer arguments.

Signed-off-by: Christian Brauner <christian@brauner.io>
Cc: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:27:11 -07:00
Christian Brauner
978a46fa6c ipv4: add inet_fill_args
inet_fill_ifaddr() already took 6 arguments which meant the 7th argument
would need to be pushed onto the stack on x86.
Add a new struct inet_fill_args which holds common information passed
to inet_fill_ifaddr() and shortens the function to three pointer arguments.

Signed-off-by: Christian Brauner <christian@brauner.io>
Cc: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:27:11 -07:00
Christian Brauner
7e4a8d5a93 rtnetlink: s/IFLA_IF_NETNSID/IFLA_TARGET_NETNSID/g
IFLA_TARGET_NETNSID is the new alias for IFLA_IF_NETNSID. This commit
replaces all occurrences of IFLA_IF_NETNSID with the new alias to
indicate that this identifier is the preferred one.

Signed-off-by: Christian Brauner <christian@brauner.io>
Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Cc: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:27:11 -07:00
Christian Brauner
19d8f1ad12 if_link: add IFLA_TARGET_NETNSID alias
This adds IFLA_TARGET_NETNSID as an alias for IFLA_IF_NETNSID for
RTM_*LINK requests.
The new name is clearer and also aligns with the newly introduced
IFA_TARGET_NETNSID propert for RTM_*ADDR requests.

Signed-off-by: Christian Brauner <christian@brauner.io>
Suggested-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Cc: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:27:11 -07:00
Christian Brauner
87ccbb1f94 rtnetlink: move type calculation out of loop
I don't see how the type - which is one of
RTM_{GETADDR,GETROUTE,GETNETCONF} - can change. So do the message type
calculation once before entering the for loop.

Signed-off-by: Christian Brauner <christian@brauner.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:27:11 -07:00
Christian Brauner
6ecf4c37eb ipv6: enable IFA_TARGET_NETNSID for RTM_GETADDR
- Backwards Compatibility:
  If userspace wants to determine whether ipv6 RTM_GETADDR requests
  support the new IFA_TARGET_NETNSID property it should verify that the
  reply includes the IFA_TARGET_NETNSID property. If it does not
  userspace should assume that IFA_TARGET_NETNSID is not supported for
  ipv6 RTM_GETADDR requests on this kernel.
- From what I gather from current userspace tools that make use of
  RTM_GETADDR requests some of them pass down struct ifinfomsg when they
  should actually pass down struct ifaddrmsg. To not break existing
  tools that pass down the wrong struct we will do the same as for
  RTM_GETLINK | NLM_F_DUMP requests and not error out when the
  nlmsg_parse() fails.

- Security:
  Callers must have CAP_NET_ADMIN in the owning user namespace of the
  target network namespace.

Signed-off-by: Christian Brauner <christian@brauner.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:27:11 -07:00
Christian Brauner
d38071455f ipv4: enable IFA_TARGET_NETNSID for RTM_GETADDR
- Backwards Compatibility:
  If userspace wants to determine whether ipv4 RTM_GETADDR requests
  support the new IFA_TARGET_NETNSID property it should verify that the
  reply includes the IFA_TARGET_NETNSID property. If it does not
  userspace should assume that IFA_TARGET_NETNSID is not supported for
  ipv4 RTM_GETADDR requests on this kernel.
- From what I gather from current userspace tools that make use of
  RTM_GETADDR requests some of them pass down struct ifinfomsg when they
  should actually pass down struct ifaddrmsg. To not break existing
  tools that pass down the wrong struct we will do the same as for
  RTM_GETLINK | NLM_F_DUMP requests and not error out when the
  nlmsg_parse() fails.

- Security:
  Callers must have CAP_NET_ADMIN in the owning user namespace of the
  target network namespace.

Signed-off-by: Christian Brauner <christian@brauner.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:27:11 -07:00
Christian Brauner
9f3c057c14 if_addr: add IFA_TARGET_NETNSID
This adds a new IFA_TARGET_NETNSID property to be used by address
families such as PF_INET and PF_INET6.
The IFA_TARGET_NETNSID property can be used to send a network namespace
identifier as part of a request. If a IFA_TARGET_NETNSID property is
identified it will be used to retrieve the target network namespace in
which the request is to be made.

Signed-off-by: Christian Brauner <christian@brauner.io>
Cc: Jiri Benc <jbenc@redhat.com>
Cc: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:27:11 -07:00
Christian Brauner
c383edc424 rtnetlink: add rtnl_get_net_ns_capable()
get_target_net() will be used in follow-up patches in ipv{4,6} codepaths to
retrieve network namespaces based on network namespace identifiers. So
remove the static declaration and export in the rtnetlink header. Also,
rename it to rtnl_get_net_ns_capable() to make it obvious what this
function is doing.
Export rtnl_get_net_ns_capable() so it can be used when ipv6 is built as
a module.

Signed-off-by: Christian Brauner <christian@brauner.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:27:11 -07:00
Alexei Starovoitov
a9c676bc8f bpf/verifier: fix verifier instability
Edward Cree says:
In check_mem_access(), for the PTR_TO_CTX case, after check_ctx_access()
has supplied a reg_type, the other members of the register state are set
appropriately.  Previously reg.range was set to 0, but as it is in a
union with reg.map_ptr, which is larger, upper bytes of the latter were
left in place.  This then caused the memcmp() in regsafe() to fail,
preventing some branches from being pruned (and occasionally causing the
same program to take a varying number of processed insns on repeated
verifier runs).

Fix the instability by clearing bpf_reg_state in __mark_reg_[un]known()

Fixes: f1174f77b5 ("bpf/verifier: rework value tracking")
Debugged-by: Edward Cree <ecree@solarflare.com>
Acked-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-09-05 22:21:00 -07:00
David S. Miller
d4cc597623 Merge branch 'net-lan78xx-Minor-improvements'
Stefan Wahren says:

====================
net: lan78xx: Minor improvements

This patch series contains some minor improvements for the lan78xx
driver.

Changes in V2:
- Keep Copyright comment as multi-line
- Add Raghuram's Reviewed-by
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:20:45 -07:00
Stefan Wahren
51ceac9fb5 net: lan78xx: Make declaration style consistent
This patch makes some declaration more consistent.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Raghuram Chary Jallipalli <raghuramchary.jallipalli@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:20:45 -07:00
Stefan Wahren
6be665a56d net: lan78xx: Switch to SPDX identifier
Adopt the SPDX license identifier headers to ease license compliance
management.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:20:45 -07:00
Stefan Wahren
7a6b022d79 net: lan78xx: Drop unnecessary strcpy in lan78xx_probe
There is no need for this strcpy because alloc_etherdev() already
does this job.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Raghuram Chary Jallipalli <raghuramchary.jallipalli@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:20:45 -07:00
Stefan Wahren
fa8cd98c06 net: lan78xx: Bail out if lan78xx_get_endpoints fails
We need to bail out if lan78xx_get_endpoints() fails, otherwise the
result is overwritten.

Fixes: 55d7de9de6 ("Microchip's LAN7800 family USB 2/3 to 10/100/1000 Ethernet")
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Raghuram Chary Jallipalli <raghuramchary.jallipalli@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:20:45 -07:00
Davide Caratti
ee28bb56ac net/sched: fix memory leak in act_tunnel_key_init()
If users try to install act_tunnel_key 'set' rules with duplicate values
of 'index', the tunnel metadata are allocated, but never released. Then,
kmemleak complains as follows:

 # tc a a a tunnel_key set src_ip 1.1.1.1 dst_ip 2.2.2.2 id 42 index 111
 # echo clear > /sys/kernel/debug/kmemleak
 # tc a a a tunnel_key set src_ip 1.1.1.1 dst_ip 2.2.2.2 id 42 index 111
 Error: TC IDR already exists.
 We have an error talking to the kernel
 # echo scan > /sys/kernel/debug/kmemleak
 # cat /sys/kernel/debug/kmemleak
 unreferenced object 0xffff8800574e6c80 (size 256):
   comm "tc", pid 5617, jiffies 4298118009 (age 57.990s)
   hex dump (first 32 bytes):
     00 00 00 00 00 00 00 00 00 1c e8 b0 ff ff ff ff  ................
     81 24 c2 ad ff ff ff ff 00 00 00 00 00 00 00 00  .$..............
   backtrace:
     [<00000000b7afbf4e>] tunnel_key_init+0x8a5/0x1800 [act_tunnel_key]
     [<000000007d98fccd>] tcf_action_init_1+0x698/0xac0
     [<0000000099b8f7cc>] tcf_action_init+0x15c/0x590
     [<00000000dc60eebe>] tc_ctl_action+0x336/0x5c2
     [<000000002f5a2f7d>] rtnetlink_rcv_msg+0x357/0x8e0
     [<000000000bfe7575>] netlink_rcv_skb+0x124/0x350
     [<00000000edab656f>] netlink_unicast+0x40f/0x5d0
     [<00000000b322cdcb>] netlink_sendmsg+0x6e8/0xba0
     [<0000000063d9d490>] sock_sendmsg+0xb3/0xf0
     [<00000000f0d3315a>] ___sys_sendmsg+0x654/0x960
     [<00000000c06cbd42>] __sys_sendmsg+0xd3/0x170
     [<00000000ce72e4b0>] do_syscall_64+0xa5/0x470
     [<000000005caa2d97>] entry_SYSCALL_64_after_hwframe+0x49/0xbe
     [<00000000fac1b476>] 0xffffffffffffffff

This problem theoretically happens also in case users attempt to setup a
geneve rule having wrong configuration data, or when the kernel fails to
allocate 'params_new'. Ensure that tunnel_key_init() releases the tunnel
metadata also in the above conditions.

Addresses-Coverity-ID: 1373974 ("Resource leak")
Fixes: d0f6dd8a91 ("net/sched: Introduce act_tunnel_key")
Fixes: 0ed5269f9e ("net/sched: add tunnel option support to act_tunnel_key")
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:18:54 -07:00
Jakub Kicinski
7848418e28 nfp: separate VXLAN and GRE feature handling
VXLAN and GRE FW features have to currently be both advertised
for the driver to enable them.  Separate the handling.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:18:11 -07:00
David S. Miller
eebd3faa4f Merge branch 'nfp-improve-the-new-rtsym-helpers'
Jakub Kicinski says:

====================
nfp: improve the new rtsym helpers

This set fixes a bug in ABS rtsym handling I added in net-next,
it expands the error checking and reporting on the rtsym accesses.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:17:07 -07:00
Jakub Kicinski
e84b2f2db2 nfp: validate rtsym accesses fall within the symbol
With the accesses to rtsyms now all going via special helpers
we can easily make sure the driver is not reading past the
end of the symbol.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Francois H. Theron <francois.theron@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:17:07 -07:00
Jakub Kicinski
31e380f38f nfp: prefix rtsym error messages with symbol name
For ease of debug preface all error messages with the name
of the symbol which caused them.  Use the same message format
for existing messages while at it.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Francois H. Theron <francois.theron@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:17:07 -07:00
Jakub Kicinski
3c576de30b nfp: fix readq on absolute RTsyms
Return the error and report value through the output param.

Fixes: 640917dd81 ("nfp: support access to absolute RTsyms")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Francois H. Theron <francois.theron@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:17:07 -07:00
Taeung Song
69495d2a52 libbpf: Remove the duplicate checking of function storage
After the commit eac7d84519 ("tools: libbpf: don't return '.text'
as a program for multi-function programs"), bpf_program__next()
in bpf_object__for_each_program skips the function storage such as .text,
so eliminate the duplicate checking.

Cc: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Taeung Song <treeze.taeung@gmail.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-09-05 22:16:00 -07:00
YueHaibing
9e7e6cabf3 failover: Add missing check to validate 'slave_dev' in net_failover_slave_unregister
Fixes gcc '-Wunused-but-set-variable' warning:

drivers/net/net_failover.c: In function 'net_failover_slave_unregister':
drivers/net/net_failover.c:598:35: warning:
 variable 'primary_dev' set but not used [-Wunused-but-set-variable]

There should check the validity of 'slave_dev'.

Fixes: cfc80d9a11 ("net: Introduce net_failover driver")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Acked-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:14:47 -07:00
Cong Wang
0a3b8b2b21 tipc: orphan sock in tipc_release()
Before we unlock the sock in tipc_release(), we have to
detach sk->sk_socket from sk, otherwise a parallel
tipc_sk_fill_sock_diag() could stil read it after we
free this socket.

Fixes: c30b70deb5 ("tipc: implement socket diagnostics for AF_TIPC")
Reported-and-tested-by: syzbot+48804b87c16588ad491d@syzkaller.appspotmail.com
Cc: Jon Maloy <jon.maloy@ericsson.com>
Cc: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:14:00 -07:00
Dmitry Safonov
428f944bd5 netlink: Make groups check less stupid in netlink_bind()
As Linus noted, the test for 0 is needless, groups type can follow the
usual kernel style and 8*sizeof(unsigned long) is BITS_PER_LONG:

> The code [..] isn't technically incorrect...
> But it is stupid.
> Why stupid? Because the test for 0 is pointless.
>
> Just doing
>        if (nlk->ngroups < 8*sizeof(groups))
>                groups &= (1UL << nlk->ngroups) - 1;
>
> would have been fine and more understandable, since the "mask by shift
> count" already does the right thing for a ngroups value of 0. Now that
> test for zero makes me go "what's special about zero?". It turns out
> that the answer to that is "nothing".
[..]
> The type of "groups" is kind of silly too.
>
> Yeah, "long unsigned int" isn't _technically_ wrong. But we normally
> call that type "unsigned long".

Cleanup my piece of pointlessness.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: netdev@vger.kernel.org
Fairly-blamed-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dmitry Safonov <dima@arista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-05 22:11:33 -07:00