Commit Graph

38 Commits

Author SHA1 Message Date
Kevin Darbyshire-Bryant
4dcef8263e Revert "kmod-sched-cake: drop out of tree package, use kernel version"
This reverts commit 5c094ff660.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2019-07-29 16:12:42 +01:00
Fredrik Olofsson
7d96c301d6 kernel: cherry pick patch removing __linux__ check
This is already included in newer upstream. Needed to build BPF programs
using the MIPS kernel include files.

Without this patch, clang fails with "#error Use a Linux compiler or
give up." in sgidefs.h when building BPF programs.

Signed-off-by: Fredrik Olofsson <fredrik.olofsson@anyfinetworks.com>
2019-07-10 16:56:16 +02:00
Kevin Darbyshire-Bryant
5c094ff660 kmod-sched-cake: drop out of tree package, use kernel version
CAKE made it to kernel 4.19 and since OpenWrt now at kernel 4.19 we can
drop the out of tree cake package in base repository.

Add kmod-sched-cake to netsupport so package dependencies are still met.
Similarly CAKE is retained as an optional qdisc module to avoid base
scheduler package size implications.

Backport upstream patches from k5.1 to address some small bugs and
support fwmark usage.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2019-07-08 11:05:43 +01:00
Martin Schiller
aac25bdba5 kernel: 4.19: Backport usb dwc2 lpm mode hw check
This patch backports verbatim the commit from Linux 5.2-rc7 that fixes
the warnings about invalid lpm related parameters on hardware which
don't that.

This is the case for e.g. lantiq xrx200 targets.

Supported only in Linux 4.17 an later.

Signed-off-by: Martin Schiller <ms@dev.tdt.de>
[refresh patches, fix commit title]
Signed-off-by: Mathias Kresin <dev@kresin.me>
2019-07-07 11:17:34 +02:00
Koen Vandeputte
92b8fe0e0e kernel: bump 4.19 to 4.19.55
Refreshed all patches.

Compile-tested on: imx6
Runtime-tested on: imx6

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-06-24 16:36:30 +02:00
Kevin Darbyshire-Bryant
5273fb6b21 kernel: update act_ctinfo
Follow upstream changes - header file changes
no executable  difference at all

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2019-06-20 21:12:24 +01:00
Koen Vandeputte
aa3f9736ea kernel: bump 4.19 to 4.19.52
Refreshed all patches.

Fixes:

- CVE-2019-11479
- CVE-2019-11478
- CVE-2019-11477

Also fix a malformed patch issue caught during refresh.

It was caused by removing a whitespace without altering
the index values in a patch which alters a patch.

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Fixes: cf65262492 ("kernel: bump 4.19 to 4.19.51")
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-06-18 14:47:53 +02:00
Koen Vandeputte
cf65262492 kernel: bump 4.19 to 4.19.51
Refreshed all patches.

Altered patches:
- 370-netfilter-nf_flow_table-fix-offloaded-connection-tim.patch
- 220-optimize_inlining.patch
- 640-netfilter-nf_flow_table-add-hardware-offload-support.patch

This patch also restores the initial implementation
of the ath79 perfcount IRQ issue. (78ee6b1a40)
It was wrongfully backported upstream initially and got reverted now.

Compile-tested on: cns3xxx, imx6
Runtime-tested on: cns3xxx, imx6

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Signed-off-by: Petr Štetiar <ynezz@true.cz>
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2019-06-18 11:38:58 +02:00
Koen Vandeputte
11b4d29ef5 kernel: bump 4.19 to 4.19.50
Refreshed all patches.

Compile-tested on: cns3xxx, imx6
Runtime-tested on: cns3xxx, imx6

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-06-12 15:04:09 +02:00
Kevin Darbyshire-Bryant
b8a72dfd28 kernel: backport act_ctinfo
ctinfo is a new tc filter action module.  It is designed to restore
information contained in firewall conntrack marks to other packet fields
and is typically used on packet ingress paths.  At present it has two
independent sub-functions or operating modes, DSCP restoration mode &
skb mark restoration mode.

The DSCP restore mode:

This mode copies DSCP values that have been placed in the firewall
conntrack mark back into the IPv4/v6 diffserv fields of relevant
packets.

The DSCP restoration is intended for use and has been found useful for
restoring ingress classifications based on egress classifications across
links that bleach or otherwise change DSCP, typically home ISP Internet
links.  Restoring DSCP on ingress on the WAN link allows qdiscs such as
but by no means limited to CAKE to shape inbound packets according to
policies that are easier to set & mark on egress.

Ingress classification is traditionally a challenging task since
iptables rules haven't yet run and tc filter/eBPF programs are pre-NAT
lookups, hence are unable to see internal IPv4 addresses as used on the
typical home masquerading gateway.  Thus marking the connection in some
manner on egress for later restoration of classification on ingress is
easier to implement.

Parameters related to DSCP restore mode:

dscpmask - a 32 bit mask of 6 contiguous bits and indicate bits of the
conntrack mark field contain the DSCP value to be restored.

statemask - a 32 bit mask of (usually) 1 bit length, outside the area
specified by dscpmask.  This represents a conditional operation flag
whereby the DSCP is only restored if the flag is set.  This is useful to
implement a 'one shot' iptables based classification where the
'complicated' iptables rules are only run once to classify the
connection on initial (egress) packet and subsequent packets are all
marked/restored with the same DSCP.  A mask of zero disables the
conditional behaviour ie. the conntrack mark DSCP bits are always
restored to the ip diffserv field (assuming the conntrack entry is found
& the skb is an ipv4/ipv6 type)

e.g. dscpmask 0xfc000000 statemask 0x01000000

|----0xFC----conntrack mark----000000---|
| Bits 31-26 | bit 25 | bit24 |~~~ Bit 0|
| DSCP       | unused | flag  |unused   |
|-----------------------0x01---000000---|
      |                   |
      |                   |
      ---|             Conditional flag
         v             only restore if set
|-ip diffserv-|
| 6 bits      |
|-------------|

The skb mark restore mode (cpmark):

This mode copies the firewall conntrack mark to the skb's mark field.
It is completely the functional equivalent of the existing act_connmark
action with the additional feature of being able to apply a mask to the
restored value.

Parameters related to skb mark restore mode:

mask - a 32 bit mask applied to the firewall conntrack mark to mask out
bits unwanted for restoration.  This can be useful where the conntrack
mark is being used for different purposes by different applications.  If
not specified and by default the whole mark field is copied (i.e.
default mask of 0xffffffff)

e.g. mask 0x00ffffff to mask out the top 8 bits being used by the
aforementioned DSCP restore mode.

|----0x00----conntrack mark----ffffff---|
| Bits 31-24 |                          |
| DSCP & flag|      some value here     |
|---------------------------------------|
			|
			|
			v
|------------skb mark-------------------|
|            |                          |
|  zeroed    |                          |
|---------------------------------------|

Overall parameters:

zone - conntrack zone

control - action related control (reclassify | pipe | drop | continue |
ok | goto chain <CHAIN_INDEX>)

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Make suitable adjustments for backporting to 4.14 & 4.19
and add to SCHED_MODULES_FILTER

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2019-06-06 15:41:07 +01:00
Kevin Darbyshire-Bryant
24e09bac48 Revert "kernel: backport act_ctinfo"
This reverts commit 7c50182e0c.

Produces build error:
Package kmod-sched is missing dependencies for the following libraries:
nf_conntrack.ko

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2019-06-06 10:45:15 +01:00
Kevin Darbyshire-Bryant
7c50182e0c kernel: backport act_ctinfo
ctinfo is a new tc filter action module.  It is designed to restore
information contained in firewall conntrack marks to other packet fields
and is typically used on packet ingress paths.  At present it has two
independent sub-functions or operating modes, DSCP restoration mode &
skb mark restoration mode.

The DSCP restore mode:

This mode copies DSCP values that have been placed in the firewall
conntrack mark back into the IPv4/v6 diffserv fields of relevant
packets.

The DSCP restoration is intended for use and has been found useful for
restoring ingress classifications based on egress classifications across
links that bleach or otherwise change DSCP, typically home ISP Internet
links.  Restoring DSCP on ingress on the WAN link allows qdiscs such as
but by no means limited to CAKE to shape inbound packets according to
policies that are easier to set & mark on egress.

Ingress classification is traditionally a challenging task since
iptables rules haven't yet run and tc filter/eBPF programs are pre-NAT
lookups, hence are unable to see internal IPv4 addresses as used on the
typical home masquerading gateway.  Thus marking the connection in some
manner on egress for later restoration of classification on ingress is
easier to implement.

Parameters related to DSCP restore mode:

dscpmask - a 32 bit mask of 6 contiguous bits and indicate bits of the
conntrack mark field contain the DSCP value to be restored.

statemask - a 32 bit mask of (usually) 1 bit length, outside the area
specified by dscpmask.  This represents a conditional operation flag
whereby the DSCP is only restored if the flag is set.  This is useful to
implement a 'one shot' iptables based classification where the
'complicated' iptables rules are only run once to classify the
connection on initial (egress) packet and subsequent packets are all
marked/restored with the same DSCP.  A mask of zero disables the
conditional behaviour ie. the conntrack mark DSCP bits are always
restored to the ip diffserv field (assuming the conntrack entry is found
& the skb is an ipv4/ipv6 type)

e.g. dscpmask 0xfc000000 statemask 0x01000000

|----0xFC----conntrack mark----000000---|
| Bits 31-26 | bit 25 | bit24 |~~~ Bit 0|
| DSCP       | unused | flag  |unused   |
|-----------------------0x01---000000---|
      |                   |
      |                   |
      ---|             Conditional flag
         v             only restore if set
|-ip diffserv-|
| 6 bits      |
|-------------|

The skb mark restore mode (cpmark):

This mode copies the firewall conntrack mark to the skb's mark field.
It is completely the functional equivalent of the existing act_connmark
action with the additional feature of being able to apply a mask to the
restored value.

Parameters related to skb mark restore mode:

mask - a 32 bit mask applied to the firewall conntrack mark to mask out
bits unwanted for restoration.  This can be useful where the conntrack
mark is being used for different purposes by different applications.  If
not specified and by default the whole mark field is copied (i.e.
default mask of 0xffffffff)

e.g. mask 0x00ffffff to mask out the top 8 bits being used by the
aforementioned DSCP restore mode.

|----0x00----conntrack mark----ffffff---|
| Bits 31-24 |                          |
| DSCP & flag|      some value here     |
|---------------------------------------|
			|
			|
			v
|------------skb mark-------------------|
|            |                          |
|  zeroed    |                          |
|---------------------------------------|

Overall parameters:

zone - conntrack zone

control - action related control (reclassify | pipe | drop | continue |
ok | goto chain <CHAIN_INDEX>)

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Make suitable adjustments for backporting to 4.14 & 4.19

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2019-06-06 09:41:26 +01:00
Koen Vandeputte
8eb7cf0cd7 kernel: bump 4.19 to 4.19.44
Refreshed all patches.

Remove upstreamed:
- 103-MIPS-perf-ath79-Fix-perfcount-IRQ-assignment.patch

Compile-tested on: cns3xxx, imx6
Runtime-tested on: cns3xxx, imx6

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-05-21 09:45:15 +02:00
Koen Vandeputte
86fd8cb435 kernel: bump 4.19 to 4.19.42
Refreshed all patches.

Remove upstreamed:
- 060-v5.1-serial-ar933x_uart-Fix-build-failure-with-disabled-c.patch
- 400-v5.2-leds-trigger-netdev-fix-refcnt-leak-on-interface-ren.patch

Compile-tested on: cns3xxx, imx6
Runtime-tested on: cns3xxx, imx6

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-05-13 19:17:41 +02:00
Jeff Kletsky
3bc8ed91d4 generic-4.19: Backport spi-nand support for GigaDevice A/E
This patch backports verbatim the commits from Linux 5.0 and 5.1
that implemented support for GigaDevice SPI NAND A and E variants.

Supported only in Linux 4.19 and later as based on the upstream
drivers/mtd/nand/spi/ framework.

mtd-spinand-add-support-for-GigaDevice-GD5FxGQ4xA.patch
commit c93c613214ac (5.0)

mtd-spinand-Add-support-for-GigaDevice-GD5F1GQ4UExxG.patch
commit c40c7a990a46 (5.1)

Run-tested-on: GL.iNet AR750S

Signed-off-by: Jeff Kletsky <git-commits@allycomm.com>
2019-05-11 23:10:10 +02:00
Koen Vandeputte
8df12d76c6 kernel: bump 4.19 to 4.19.34
Refreshed all patches.

Removed:
- 030-PCI-dwc-skip-MSI-init-if-MSIs-have-been-explicitly-d.patch

Altered:
- 366-netfilter-nf_flow_table-clean-up-and-fix-dst-handlin.patch
- 650-netfilter-add-xt_OFFLOAD-target.patch
- 662-remove_pfifo_fast.patch
- 332-arc-add-OWRTDTB-section.patch
- 100-clocksource-drivers-arch_timer-Workaround-for-Allwin.patch
- 702-phy_add_aneg_done_function.patch

New symbols:
- ARC_IRQ_NO_AUTOSAVE
- SUN50I_ERRATUM_UNKNOWN1

Compile-tested: cns3xxx, imx6, sunxi
Runtime-tested: cns3xxx, imx6

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-04-08 14:53:39 +02:00
Rafał Miłecki
ebed4b6dd0 kernel: backport upstream ubifs default compression selection fix
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2019-04-04 11:19:33 +02:00
Rafał Miłecki
9a92af4624 kernel: fix rtcache compilation with 4.18+ with IPv6 support
Please note that modified code isn't currently being compiled with
kernels 4.19+ due to the dropped CONFIG_NF_CONNTRACK_IPV6 in upstream
Linux. That requires a separated fix.

This fixes:
net/netfilter/nf_conntrack_rtcache.c: In function 'nf_rtcache_get_cookie':
net/netfilter/nf_conntrack_rtcache.c:82:11: error: 'const struct rt6_info' has no member named 'rt6i_node'; did you mean 'rt6i_idev'?
   if (rt->rt6i_node)
           ^~~~~~~~~
           rt6i_idev

IPv6 structs were reworked in upstream kernel by:
commit a64efe142f5e ("net/ipv6: introduce fib6_info struct and helpers")
commit 77634cc67dc1 ("net/ipv6: Remove unused code and variables for rt6_info")
commit 93c2fb253d17 ("net/ipv6: Rename fib6_info struct elements")

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2019-04-04 10:59:11 +02:00
Koen Vandeputte
9c63141025 imx6: fix legacy IRQ support (4.19)
The PCIe DWC host controller is now using MSI
(Message-signaled-interrupts) by default.

While ath9k itself does support MSI here, a lot of wlan adapters do not.
Avoid non-functioning cards by simply continue to disable MSI for now.

This can be done by appending "pci=nomsi" to the boot cmdline.

Also an extra fix needs to be backported which avoids MSI initialization
which prevented legacy IRQ's init from taking over.

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-03-22 18:14:28 +01:00
Petr Štetiar
846f98056a kernel: Backport ar933x_uart build fix (fixes FS#2152)
Andrey has reported on OpenWrt's bug tracking system[1], that he
currently can't use ar93xx_uart as pure serial UART without console
(CONFIG_SERIAL_8250_CONSOLE and CONFIG_SERIAL_AR933X_CONSOLE undefined),
because compilation ends with following error:

 ar933x_uart.c: In function 'ar933x_uart_console_write':
 ar933x_uart.c:550:14: error: 'struct uart_port' has no
                               member named 'sysrq'

1. https://bugs.openwrt.org/index.php?do=details&task_id=2152

Signed-off-by: Petr Štetiar <ynezz@true.cz>
2019-03-20 23:07:03 +01:00
Rafał Miłecki
9e32e288f0 kernel: fix refcnt leak in LED netdev trigger on interface rename
This fixes a possible unbalanced dev_hold():
> iw dev bar del
[  237.355366] unregister_netdevice: waiting for bar to become free. Usage count = 1
[  247.435362] unregister_netdevice: waiting for bar to become free. Usage count = 1
[  257.545366] unregister_netdevice: waiting for bar to become free. Usage count = 1

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2019-03-05 23:10:09 +01:00
Koen Vandeputte
ca13820d13 kernel: bump 4.19 to 4.19.23
Refreshed all patches.

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-02-15 21:53:27 +01:00
Koen Vandeputte
9a3599de2c kernel: bump 4.19 to 4.19.20
Refreshed all patches.

Remove upstreamed:
- 100-arm-cns3xxx-fix-writing-to-wrong-PCI-registers-after.patch

Altered patches:
- 721-phy_packets.patch

Compile-tested on: imx6
Runtime-tested on: imx6

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-02-08 17:27:47 +01:00
Koen Vandeputte
3da230a2e6 kernel: bump 4.19 to 4.19.19
Refreshed all patches.

Remove upstreamed patch:
- 800-v5.0-usb-leds-fix-regression-in-usbport-led-trigger.patch

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-02-01 11:41:00 +01:00
Koen Vandeputte
f003d732d7 kernel: bump 4.19 to 4.19.18
Refreshed all patches.

Removed upstreamed:
- 031-v5.0-MIPS-BCM47XX-Setup-struct-device-for-the-SoC.patch
- 142-jffs2-Fix-use-of-uninitialized-delayed_work-lockdep-.patch

Removed upstreamed hunk in:
- 800-bcma-get-SoC-device-struct-copy-its-DMA-params-to-th.patch

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-01-28 18:17:32 +01:00
Koen Vandeputte
037800270b cns3xxx: use actual size reads for PCIe (4.19)
upstream commit 802b7c06adc7 ("ARM: cns3xxx: Convert PCI to use generic config accessors")
reimplemented cns3xxx_pci_read_config() using pci_generic_config_read32(),
which preserved the property of only doing 32-bit reads.

It also replaced cns3xxx_pci_write_config() with pci_generic_config_write(),
so it changed writes from always being 32 bits to being the actual size,
which works just fine.

Due to:
- The documentation does not mention that only 32 bit access is allowed.
- Writes are already executed using the actual size
- Extensive testing shows that 8b, 16b and 32b reads work as intended

It makes perfectly sense to also swap 32 bit reading in favor of actual size.

also backport this patch to kernel 4.19

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2019-01-28 18:17:32 +01:00
Christian Lamparter
b5f6ede3c4 kernel: 4.19: use upstream usbport led trigger fix
This patch replaces the current hack with a better
version of the RFC patch has been accepted upstream.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
2019-01-24 15:53:03 +01:00
Kevin Darbyshire-Bryant
1fdb4a7907 kernel: N_BADCLASS: fix macro to actually work - class e support
Backport upstream patch:

Commit 65cab850f0ee ("net: Allow class-e address assignment via ifconfig
ioctl") modified the IN_BADCLASS macro a bit, but unfortunatly one too
many '(' characters were added to the line, making any code that used
it, not build properly.

Also, the macro now compares an unsigned with a signed value, which
isn't ok, so fix that up by making both types match properly.

Reported-by: Christopher Ferris <cferris@google.com>
Fixes: 65cab850f0ee ("net: Allow class-e address assignment via ifconfig ioctl")
Cc: Dave Taht <dave.taht@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2019-01-19 20:45:49 +00:00
Stijn Tintel
59e62809e6 kernel: remove upstreamed patch from 4.19
This patch applies cleanly, so it doesn't cause errors while rebasing
patches. It results in redifinition of inode_still_linked, causing build
to fail when ubifs is enabled. Drop the patch.

Fixes: a37098a2d0 ("kernel: bump 4.19 to 4.19.16")
Reported-by: Deng Qingfang <dengqf6@mail2.sysu.edu.cn>
Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
2019-01-17 10:45:31 +02:00
Stijn Tintel
a37098a2d0 kernel: bump 4.19 to 4.19.16
Refresh patches.
Remove upstreamed patches:
- backport/096-mips-math-emu-Write-protect-delay-slot-emulation-pages.patch
- backport/096-v4.20-netfilter-ipv6-Preserve-link-scope-traffic-original-.patch
- backport/424-v4.20-net-dsa-fix-88e6060-roaming.patch
- hack/100-mtd-rawnand-qcom-fix-memory-corruption-that-causes-p.patch
- pending/510-f2fs-fix-sanity_check_raw_super-on-big-endian-machines.patch
Update patch that no longer applies:
- backport/343-netfilter-nft_flow_offload-handle-netdevice-events-f.patch

Compile-tested: mesongx
Runtime-tested: mesongx

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
2019-01-17 03:04:13 +02:00
Rafał Miłecki
34696ce25e kernel: backport bcma patches that improve printing functions
Updated printing functions use dev_* helpers to provide more meaningful
messages.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
2019-01-10 16:47:43 +01:00
Kevin Darbyshire-Bryant
8f4841462c kernel: MIPS: math-emu Write-protect delay slot emulation pages
Backport https://git.kernel.org/pub/scm/linux/kernel/git/mips/linux.git/commit/?id=adcc81f148d733b7e8e641300c5590a2cdc13bf3

"Mapping the delay slot emulation page as both writeable & executable
presents a security risk, in that if an exploit can write to & jump into
the page then it can be used as an easy way to execute arbitrary code.

Prevent this by mapping the page read-only for userland, and using
access_process_vm() with the FOLL_FORCE flag to write to it from
mips_dsemul().

This will likely be less efficient due to copy_to_user_page() performing
cache maintenance on a whole page, rather than a single line as in the
previous use of flush_cache_sigtramp(). However this delay slot
emulation code ought not to be running in any performance critical paths
anyway so this isn't really a problem, and we can probably do better in
copy_to_user_page() anyway in future.

A major advantage of this approach is that the fix is small & simple to
backport to stable kernels.

Reported-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: 432c6bacbd0c ("MIPS: Use per-mm page to execute branch delay slot instructions")"

Without patch:

cat /proc/self/maps
00400000-0047a000 r-xp 00000000 1f:03 1823       /bin/busybox
00489000-0048a000 r-xp 00079000 1f:03 1823       /bin/busybox
0048a000-0048b000 rwxp 0007a000 1f:03 1823       /bin/busybox
77ec8000-77eed000 r-xp 00000000 1f:03 2296       /lib/libgcc_s.so.1
77eed000-77eee000 rwxp 00015000 1f:03 2296       /lib/libgcc_s.so.1
77eee000-77f81000 r-xp 00000000 1f:03 2470       /lib/libc.so
77f90000-77f92000 rwxp 00092000 1f:03 2470       /lib/libc.so
77f92000-77f94000 rwxp 00000000 00:00 0
7f946000-7f967000 rw-p 00000000 00:00 0          [stack]
7fefb000-7fefc000 rwxp 00000000 00:00 0
7ffac000-7ffad000 r--p 00000000 00:00 0          [vvar]
7ffad000-7ffae000 r-xp 00000000 00:00 0          [vdso]

Patch applied:

cat /proc/self/maps
00400000-0047a000 r-xp 00000000 1f:03 1825       /bin/busybox
00489000-0048a000 r-xp 00079000 1f:03 1825       /bin/busybox
0048a000-0048b000 rwxp 0007a000 1f:03 1825       /bin/busybox
77ed0000-77ef5000 r-xp 00000000 1f:03 2298       /lib/libgcc_s.so.1
77ef5000-77ef6000 rwxp 00015000 1f:03 2298       /lib/libgcc_s.so.1
77ef6000-77f89000 r-xp 00000000 1f:03 2474       /lib/libc.so
77f98000-77f9a000 rwxp 00092000 1f:03 2474       /lib/libc.so
77f9a000-77f9c000 rwxp 00000000 00:00 0
7fbed000-7fc0e000 rw-p 00000000 00:00 0          [stack]
7fefb000-7fefc000 r-xp 00000000 00:00 0
7fff6000-7fff7000 r--p 00000000 00:00 0          [vvar]
7fff7000-7fff8000 r-xp 00000000 00:00 0          [vdso]

Note lack of write permission to 7fefb000-7fefc000

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2018-12-24 21:52:08 +00:00
Koen Vandeputte
6835c13e5a cns3xxx: fix writing to wrong PCI registers
Originally, cns3xxx used it's own functions for mapping, reading and writing registers.

Upstream commit 802b7c06adc7 ("ARM: cns3xxx: Convert PCI to use generic config accessors")
removed the internal PCI config write function in favor of the generic one:

cns3xxx_pci_write_config() --> pci_generic_config_write()

cns3xxx_pci_write_config() expected aligned addresses, being produced by cns3xxx_pci_map_bus()
while the generic one pci_generic_config_write() actually expects the real address
as both the function and hardware are capable of byte-aligned writes.

This currently leads to pci_generic_config_write() writing
to the wrong registers on some ocasions.

First issue seen due to this:

- driver ath9k gets loaded
- The driver wants to write value 0xA8 to register PCI_LATENCY_TIMER, located at 0x0D
- cns3xxx_pci_map_bus() aligns the address to 0x0C
- pci_generic_config_write() effectively writes 0xA8 into register 0x0C (CACHE_LINE_SIZE)

This seems to cause some slight instability when certain PCI devices are used.

Another issue example caused by this this is the PCI bus numbering,
where the primary bus is higher than the secondary, which is impossible.

Before:

00:00.0 PCI bridge: Cavium, Inc. Device 3400 (rev 01) (prog-if 00 [Normal decode])
    Flags: bus master, fast devsel, latency 0, IRQ 255
    Bus: primary=02, secondary=01, subordinate=ff, sec-latency=0

After fix:

00:00.0 PCI bridge: Cavium, Inc. Device 3400 (rev 01) (prog-if 00 [Normal decode])
    Flags: bus master, fast devsel, latency 0, IRQ 255
    Bus: primary=00, secondary=01, subordinate=02, sec-latency=0

And very likely some more ..

Fix all by omitting the alignment being done in the mapping function.

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2018-12-18 14:24:57 +01:00
Hans Dedecker
b0414d7188 kernel: preserve oif of IPv6 link scope packets
Backort upstream patch which preserves oif of IPv6 link scoped packets.
The outgoing interface of IPv6 link scope packets can be changed by the
function ip6_route_me_harder. This is unwanted behavior for link local
packets and multicast packets as the outgoing interface is fixed and must
not be altered as it can break neighbor discovery and multicast listener
discovery.

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
2018-12-17 21:42:23 +01:00
Kevin Darbyshire-Bryant
2574c86ce6 kernel: backport ifconfig ioctl support for class e addresses
Backport net: Allow class-e address assignment via ifconfig ioctl
While most distributions long ago switched to the iproute2 suite
of utilities, which allow class-e (240.0.0.0/4) address assignment,
distributions relying on busybox, toybox and other forms of
ifconfig cannot assign class-e addresses without this kernel patch.

While CIDR has been obsolete for 2 decades, and a survey of all the
open source code in the world shows the IN_whatever macros are also
obsolete... rather than obsolete CIDR from this ioctl entirely, this
patch merely enables class-e assignment, sanely.

https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=65cab850f0eeaa9180bd2e10a231964f33743edf

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
2018-12-17 10:40:20 +00:00
Anderson Luiz Alves
0c3c944d1e kernel: mv88e6060: disable hardware level MAC learning
Disable Marvell's hardware level MAC learning because it breaks station roaming.

When enabled it drops all frames that arrive from a MAC address
that is on a different port at learning table.

Problem description:
Multiple APs with inter-AP roaming connected to different ports,
when station moves from one AP on one port to another AP on another port,
traffic flow breaks down because the learning table is not updated.

Signed-off-by: Anderson Luiz Alves <alacn1@gmail.com>
[Replaced with upstream version, move to generic]
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2018-12-16 00:57:20 +01:00
Hauke Mehrtens
9261e7447e kernel: Make the patches apply on top of 4.19
This makes the patches which were just copied in the previous commit
apply on top of kernel 4.19.

The patches in the backports-4.19 folder were checked if they are really
in kernel 4.19 based on the title and only removed if they were found in
the upstream kernel.

The following additional patches form the pending folder went into
upstream Linux 4.19:
pending-4.19/171-usb-dwc2-Fix-inefficient-copy-of-unaligned-buffers.patch
pending-4.19/190-2-5-e1000e-Fix-wrong-comment-related-to-link-detection.patch
pending-4.19/478-mtd-spi-nor-Add-support-for-XM25QH64A-and-XM25QH128A.patch
pending-4.19/479-mtd-spi-nor-add-eon-en25qh32.patch
pending-4.19/950-tty-serial-exar-generalize-rs485-setup.patch
pending-4.19/340-MIPS-mm-remove-mips_dma_mapping_error.patch

Bigger changes were introduced to the m25p80 spi nor driver, as far as I
saw it in the new code, it now has the functionality provided in this
patch:
pending-4.19/450-mtd-m25p80-allow-fallback-from-spi_flash_read-to-reg.patch

Part of this patch went upstream independent of OpenWrt:
hack-4.19/220-gc_sections.patch
This patch was reworked to match the changes done upstream.

The MIPS DMA API changed a lot, this patch was rewritten to match the
new DMA handling:
pending-4.19/341-MIPS-mm-remove-no-op-dma_map_ops-where-possible.patch

I did bigger manual changes to the following patches and I am not 100% sure if they are all correct:
pending-4.19/0931-w1-gpio-fix-problem-with-platfom-data-in-w1-gpio.patch
pending-4.19/411-mtd-partial_eraseblock_write.patch
pending-4.19/600-netfilter_conntrack_flush.patch
pending-4.19/611-netfilter_match_bypass_default_table.patch
pending-4.19/670-ipv6-allow-rejecting-with-source-address-failed-policy.patch
hack-4.19/211-host_tools_portability.patch
hack-4.19/221-module_exports.patch
hack-4.19/321-powerpc_crtsavres_prereq.patch
hack-4.19/902-debloat_proc.patch

This is based on patchset from Marko Ratkaj <marko.ratkaj@sartura.hr>

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2018-12-15 14:28:48 +01:00
Hauke Mehrtens
52a82ce3dd kernel: Copy patches from kernel 4.14 to 4.19
This just copies the files from the kernel 4.14 specific folders into
the kernel 4.19 specific folder, no changes are done to the files in
this commit.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2018-12-15 12:50:06 +01:00