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USB Audio: add support for a wide range of DSD-direct capable DACs #42

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@gkkpch gkkpch commented Jan 1, 2019

Also contains a patch for eliminating a loud pop at the start of DSD playback.

Cai YiWei and others added 30 commits September 26, 2018 09:22
Change-Id: Ib3bad1186527d79ee7831ec5f41fe2f10316e1cf
Signed-off-by: Cai YiWei <[email protected]>
if stop cif timeout, stopping flag still true,
restart cif can't work.

Change-Id: If4c0805aa5d1231b1dab6046a826fe41d9796872
Signed-off-by: Cai YiWei <[email protected]>
when multiple camera using same dvp data, pwdn shuld
be off during out of work.

Change-Id: I9a12c3e9f5d7b82922b0b5a797288da7ac486448
Signed-off-by: Cai YiWei <[email protected]>
When test more than three Genesys Logic usb3 storages
(VID : PID = 0x05e3 : 0x0749) on rockchip platforms with
usb3 host port (e.g. rk3328/rk3399) at the same time,

test commands like this:
for dev in `ls /dev/sd?1 | sed -e 's,1$,,'`; do
	echo dd if=$dev of=/dev/null
	dd if=$dev of=/dev/null &
	sleep 1
done

The test fail with the following error log:
xhci-hcd xhci-hcd.9.auto: xHCI host not responding to stop endpoint command.
xhci-hcd xhci-hcd.9.auto: Assuming host is dying, halting host.
xhci-hcd xhci-hcd.9.auto: Host not halted after 16000 microseconds.
xhci-hcd xhci-hcd.9.auto: Non-responsive xHCI host is not halting.
xhci-hcd xhci-hcd.9.auto: Completing active URBs anyway.
xhci-hcd xhci-hcd.9.auto: HC died; cleaning up

This patch sets the max_sectors to 128 (64K) to workaround
this issue, and it doesn't affect the transmission rate.

Change-Id: Idd9cc81659d27c12b142f6c4375558c2262e800d
Signed-off-by: William Wu <[email protected]>
Change-Id: Ic0ceb1a839e691d5c2c25c96c34e9a234bc3654e
Signed-off-by: Weiguo Hu <[email protected]>
Change-Id: I057376ea93281e3dc84f65f9507f2b94a49b3c7e
Signed-off-by: Wang Panzhenzhuan <[email protected]>
Change-Id: I228045130c9050e0e0b39001690763ab851e0539
Signed-off-by: Cai YiWei <[email protected]>
…vts test

test cmd: run vts -m VtsKernelProcFileApi -t testProcAsoundCardsTest

test result:
shell_command: "cat /proc/asound/cards"
ERROR Failed to parse! Parsing error at token LexToken(COMMA,',',1,48) in line 1
I/ProcessHelper: [VtsKernelProcFileApi]
INFO [Test Case] testProcAsoundCardsTest FAIL

Change-Id: Ib70bf8bb0757a1773253931bb3e6f105eb518126
Signed-off-by: Weixin Zhou <[email protected]>
drivers/net/wireless/rockchip_wlan/ssv6xxx/ssvdevice/ssv_cmd.c: In function 'ssv_cmd_dump':
drivers/net/wireless/rockchip_wlan/ssv6xxx/ssvdevice/ssv_cmd.c:387:3: error: argument 1 null where non-null expected [-Werror=nonnull]
   strcpy(ssv6xxx_result_buf, "ssv6xxx_result_buf = NULL!!\n");
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Change-Id: I883d9f17814c25c0d8f7611dc99944f6b072b002
Signed-off-by: Tao Huang <[email protected]>
Change-Id: Ib156183ebba412b0f3b0003dea4de7afdf8cfbd9
Signed-off-by: Cai YiWei <[email protected]>
…_ce.c:2879

trigger by ARM_LPAE

Change-Id: I941ec62d2b9e1fe78af6807f63e2aa1d73cc0e41
Signed-off-by: Tao Huang <[email protected]>
Change-Id: I85e58fe3be5c4c266eb0132f6263a00f2ec9e091
Signed-off-by: Leo Wen <[email protected]>
…hannel

Change-Id: I3259bd83a7cb5b9af530808c9e23d145dbca02e3
Signed-off-by: Sun ChuanHu <[email protected]>
1.CIF_MI_CTRL_BURST_LEN same to isp specification define
2.memory base addresses are burst aligned with respect
to the configured burst length. configure different burst
length with different resolution.

Change-Id: I982cbef418cc55704049b2d113df923bee7cf9ef
Signed-off-by: Cai YiWei <[email protected]>
Change-Id: Ieddeeb842ee9db11b8c56cb4171bd630b6b63acb
Signed-off-by: Shunqing Chen <[email protected]>
…ost>

Change-Id: Ie2bd6d468547e2bc324be37ff9b7f5383b0db6b3
Signed-off-by: Binyuan Lan <[email protected]>
Change-Id: I005d9bac8ab0be82f7fd87b774fc4dc4269dad08
Signed-off-by: Binyuan Lan <[email protected]>
Change-Id: Ic89ef40dd7c2a2a5f885009af72f9a5f6dadab83
Signed-off-by: Shixiang Zheng <[email protected]>
Because rk312x CIF has no IOMMU and it should use CMA memory,
adding the cma_region reference for CIF, so that it could get
the CMA memory from our reserved CMA region other than from
system default CMA region.

Change-Id: I7a52abce75a2a82d3068721ddbb10ed89796ac2a
Signed-off-by: Zhong Yichong <[email protected]>
…MA region

If no IOMMU support for CIF, we prefer to alloc continuous
physical memory from our reserved CMA region than from system
reserved.

Change-Id: Icbe1f206593ffc10eba96e12f77f499455dbcd55
Signed-off-by: Zhong Yichong <[email protected]>
In order to enhance the overall robustness of the system, DSI defines
a dedicated EoT packet (EoTp) at the protocol layer for signaling
the end of HS transmission. For backwards compatibility with earlier
DSI systems, the capability of generating and interpreting this EoTp
can be enabled or disabled.

Change-Id: Iddc7e82a7e3e47dea94846fbb771da8fddc0fda3
Signed-off-by: Wyon Bi <[email protected]>
Change-Id: I62bbc6e6b26823ef24418961dab2d7b93768de4e
Signed-off-by: Weiguo Hu <[email protected]>
Solve the problem of small recording amplitude in the first recording.

Change-Id: I268f56b1a2c5a16da958952fe06ce11ada1cf932
Signed-off-by: Binyuan Lan <[email protected]>
if enumerate all the sensor fmt, don't find matching format
then should be forced to using the last one.

Change-Id: I15949ed66f583019a522ee56844e57813c6f6e49
Signed-off-by: Cai YiWei <[email protected]>
memory base addresses are burst aligned with respect
to the configured burst length. configure different
burst length with different resolution.

Change-Id: I611768ab699a7204a26899bb10c0cdcd6beeb820
Signed-off-by: Cai YiWei <[email protected]>
Change-Id: I82d85bd7252ad362f63b52fafb0826a59e921bc8
Signed-off-by: Zhangbin Tong <[email protected]>
Change-Id: Ifcb8027907be60807794e659316ad5211f51ff6d
Signed-off-by: Hu Kejun <[email protected]>
For support some application only can support framebuffer display
framework and need to read display buffer from /dev/graphics/fb0.

besides, you need to add the following patch to get kvddr:

rockchip_gem_create_with_handle()@file:
drivers/gpu/drm/rockchip/rockchip_drm_gem.c

-rk_obj = rockchip_gem_create_object(drm, size, false, flags);
+rk_obj = rockchip_gem_create_object(drm, size, true, flags);

Change-Id: Iec83dba8295268ba418e802a1cf5eeccd3880ab5
Signed-off-by: Sandy Huang <[email protected]>
Add clock for pwm1, pwm2, can, owire.

Change-Id: Id9a9330da359c3d2c53ae0f0f2e41cf4ff495cc4
Signed-off-by: Finley Xiao <[email protected]>
Change-Id: I30022ac45c7effc2bdd3b54180e0994cf6f41b7a
Signed-off-by: Finley Xiao <[email protected]>
Tonymac32 and others added 15 commits December 11, 2018 12:39
- change ciu-drv  ---> ciu-drive
- clock-freq-min-max is deprecated, use max-frequency instead
The gadget ethernet driver supports changing the MTU, but only allows this
when the USB cable is removed. The comment indicates that this is because
the "peer won't know". Even if the network link is still down and only the
USB link is established, the driver won't allow the change.

Other network interfaces allow changing the MTU any time, and don't force
the link to be disabled. This makes perfect sense, because in order to be
able to negotiate the MTU, the link needs to be up.

Remove the restriction so that it is now actually possible to change the
MTU (e.g. using "ifconfig usb0 mtu 15000") without having to manually pull
the plug or change the driver's default setting.

This is especially important after commit bba787a
("usb: gadget: ether: Allow jumbo frames")

Signed-off-by: Mike Looijmans <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
USB network adapters support Jumbo frames. The only thing blocking
that feature is the code in the gadget driver that disposes of
packets larger than 1518 bytes, and the limit on the ioctl to set
the mtu.

This patch relaxes these limits, and allows up to 15k frames sizes.
The 15k value was chosen because 16k does not work on all platforms,
and usingclose to 16k will result in allocating 5 or 8 4k pages to
store the skb, wasting pages at no measurable performance gain.

On a topic-miami board (Zynq-7000), iperf3 performance reports:
MTU= 1500, PC-to-gadget: 139 Mbps, Gadget-to-PC: 116 Mbps
MTU=15000, PC-to-gadget: 239 Mbps, Gadget-to-PC: 361 Mbps

On boards with slower CPUs the performance improvement will be
relatively much larger, e.g. an OMAP-L138 increased from 40 to
220 Mbps using a similar patch on an  2.6.37 kernel.

Signed-off-by: Mike Looijmans <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
Change-Id: I8009db93ee7c5af5e7804a004ab03d0ba97d20e2
cyberp: defconfig: squashfs xz for snap support
@ayufan ayufan force-pushed the release-4.4 branch 2 times, most recently from c4bb13a to 30a7dc4 Compare March 6, 2019 12:16
@ayufan ayufan force-pushed the release-4.4 branch 5 times, most recently from df4b48a to 917507b Compare March 19, 2019 22:39
@ayufan
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ayufan commented Jul 7, 2019

Can you rebase this patch?

@ayufan ayufan closed this Jul 7, 2019
@gkkpch
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gkkpch commented Jul 7, 2019 via email

scpcom pushed a commit to scpcom/linux that referenced this pull request Jan 16, 2023
[ Upstream commit bfcdbae ]

This enhances the sanity check for $SDH and $SII while initializing NTFS
security, guarantees these index root are legit.

[  162.459513] BUG: KASAN: use-after-free in hdr_find_e.isra.0+0x10c/0x320
[  162.460176] Read of size 2 at addr ffff8880037bca99 by task mount/243
[  162.460851]
[  162.461252] CPU: 0 PID: 243 Comm: mount Not tainted 6.0.0-rc7 ayufan-rock64#42
[  162.461744] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
[  162.462609] Call Trace:
[  162.462954]  <TASK>
[  162.463276]  dump_stack_lvl+0x49/0x63
[  162.463822]  print_report.cold+0xf5/0x689
[  162.464608]  ? unwind_get_return_address+0x3a/0x60
[  162.465766]  ? hdr_find_e.isra.0+0x10c/0x320
[  162.466975]  kasan_report+0xa7/0x130
[  162.467506]  ? _raw_spin_lock_irq+0xc0/0xf0
[  162.467998]  ? hdr_find_e.isra.0+0x10c/0x320
[  162.468536]  __asan_load2+0x68/0x90
[  162.468923]  hdr_find_e.isra.0+0x10c/0x320
[  162.469282]  ? cmp_uints+0xe0/0xe0
[  162.469557]  ? cmp_sdh+0x90/0x90
[  162.469864]  ? ni_find_attr+0x214/0x300
[  162.470217]  ? ni_load_mi+0x80/0x80
[  162.470479]  ? entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  162.470931]  ? ntfs_bread_run+0x190/0x190
[  162.471307]  ? indx_get_root+0xe4/0x190
[  162.471556]  ? indx_get_root+0x140/0x190
[  162.471833]  ? indx_init+0x1e0/0x1e0
[  162.472069]  ? fnd_clear+0x115/0x140
[  162.472363]  ? _raw_spin_lock_irqsave+0x100/0x100
[  162.472731]  indx_find+0x184/0x470
[  162.473461]  ? sysvec_apic_timer_interrupt+0x57/0xc0
[  162.474429]  ? indx_find_buffer+0x2d0/0x2d0
[  162.474704]  ? do_syscall_64+0x3b/0x90
[  162.474962]  dir_search_u+0x196/0x2f0
[  162.475381]  ? ntfs_nls_to_utf16+0x450/0x450
[  162.475661]  ? ntfs_security_init+0x3d6/0x440
[  162.475906]  ? is_sd_valid+0x180/0x180
[  162.476191]  ntfs_extend_init+0x13f/0x2c0
[  162.476496]  ? ntfs_fix_post_read+0x130/0x130
[  162.476861]  ? iput.part.0+0x286/0x320
[  162.477325]  ntfs_fill_super+0x11e0/0x1b50
[  162.477709]  ? put_ntfs+0x1d0/0x1d0
[  162.477970]  ? vsprintf+0x20/0x20
[  162.478258]  ? set_blocksize+0x95/0x150
[  162.478538]  get_tree_bdev+0x232/0x370
[  162.478789]  ? put_ntfs+0x1d0/0x1d0
[  162.479038]  ntfs_fs_get_tree+0x15/0x20
[  162.479374]  vfs_get_tree+0x4c/0x130
[  162.479729]  path_mount+0x654/0xfe0
[  162.480124]  ? putname+0x80/0xa0
[  162.480484]  ? finish_automount+0x2e0/0x2e0
[  162.480894]  ? putname+0x80/0xa0
[  162.481467]  ? kmem_cache_free+0x1c4/0x440
[  162.482280]  ? putname+0x80/0xa0
[  162.482714]  do_mount+0xd6/0xf0
[  162.483264]  ? path_mount+0xfe0/0xfe0
[  162.484782]  ? __kasan_check_write+0x14/0x20
[  162.485593]  __x64_sys_mount+0xca/0x110
[  162.486024]  do_syscall_64+0x3b/0x90
[  162.486543]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  162.487141] RIP: 0033:0x7f9d374e948a
[  162.488324] Code: 48 8b 0d 11 fa 2a 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 008
[  162.489728] RSP: 002b:00007ffe30e73d18 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
[  162.490971] RAX: ffffffffffffffda RBX: 0000561cdb43a060 RCX: 00007f9d374e948a
[  162.491669] RDX: 0000561cdb43a260 RSI: 0000561cdb43a2e0 RDI: 0000561cdb442af0
[  162.492050] RBP: 0000000000000000 R08: 0000561cdb43a280 R09: 0000000000000020
[  162.492459] R10: 00000000c0ed0000 R11: 0000000000000206 R12: 0000561cdb442af0
[  162.493183] R13: 0000561cdb43a260 R14: 0000000000000000 R15: 00000000ffffffff
[  162.493644]  </TASK>
[  162.493908]
[  162.494214] The buggy address belongs to the physical page:
[  162.494761] page:000000003e38a3d5 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x37bc
[  162.496064] flags: 0xfffffc0000000(node=0|zone=1|lastcpupid=0x1fffff)
[  162.497278] raw: 000fffffc0000000 ffffea00000df1c8 ffffea00000df008 0000000000000000
[  162.498928] raw: 0000000000000000 0000000000240000 00000000ffffffff 0000000000000000
[  162.500542] page dumped because: kasan: bad access detected
[  162.501057]
[  162.501242] Memory state around the buggy address:
[  162.502230]  ffff8880037bc980: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[  162.502977]  ffff8880037bca00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[  162.503522] >ffff8880037bca80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[  162.503963]                             ^
[  162.504370]  ffff8880037bcb00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[  162.504766]  ffff8880037bcb80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff

Signed-off-by: Edward Lo <[email protected]>
Signed-off-by: Konstantin Komarov <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
scpcom pushed a commit to scpcom/linux that referenced this pull request Jul 1, 2023
[ Upstream commit 08e8cf5 ]

This adds a length check to guarantee the retrieved index root is legit.

[  162.459513] BUG: KASAN: use-after-free in hdr_find_e.isra.0+0x10c/0x320
[  162.460176] Read of size 2 at addr ffff8880037bca99 by task mount/243
[  162.460851]
[  162.461252] CPU: 0 PID: 243 Comm: mount Not tainted 6.0.0-rc7 ayufan-rock64#42
[  162.461744] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
[  162.462609] Call Trace:
[  162.462954]  <TASK>
[  162.463276]  dump_stack_lvl+0x49/0x63
[  162.463822]  print_report.cold+0xf5/0x689
[  162.464608]  ? unwind_get_return_address+0x3a/0x60
[  162.465766]  ? hdr_find_e.isra.0+0x10c/0x320
[  162.466975]  kasan_report+0xa7/0x130
[  162.467506]  ? _raw_spin_lock_irq+0xc0/0xf0
[  162.467998]  ? hdr_find_e.isra.0+0x10c/0x320
[  162.468536]  __asan_load2+0x68/0x90
[  162.468923]  hdr_find_e.isra.0+0x10c/0x320
[  162.469282]  ? cmp_uints+0xe0/0xe0
[  162.469557]  ? cmp_sdh+0x90/0x90
[  162.469864]  ? ni_find_attr+0x214/0x300
[  162.470217]  ? ni_load_mi+0x80/0x80
[  162.470479]  ? entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  162.470931]  ? ntfs_bread_run+0x190/0x190
[  162.471307]  ? indx_get_root+0xe4/0x190
[  162.471556]  ? indx_get_root+0x140/0x190
[  162.471833]  ? indx_init+0x1e0/0x1e0
[  162.472069]  ? fnd_clear+0x115/0x140
[  162.472363]  ? _raw_spin_lock_irqsave+0x100/0x100
[  162.472731]  indx_find+0x184/0x470
[  162.473461]  ? sysvec_apic_timer_interrupt+0x57/0xc0
[  162.474429]  ? indx_find_buffer+0x2d0/0x2d0
[  162.474704]  ? do_syscall_64+0x3b/0x90
[  162.474962]  dir_search_u+0x196/0x2f0
[  162.475381]  ? ntfs_nls_to_utf16+0x450/0x450
[  162.475661]  ? ntfs_security_init+0x3d6/0x440
[  162.475906]  ? is_sd_valid+0x180/0x180
[  162.476191]  ntfs_extend_init+0x13f/0x2c0
[  162.476496]  ? ntfs_fix_post_read+0x130/0x130
[  162.476861]  ? iput.part.0+0x286/0x320
[  162.477325]  ntfs_fill_super+0x11e0/0x1b50
[  162.477709]  ? put_ntfs+0x1d0/0x1d0
[  162.477970]  ? vsprintf+0x20/0x20
[  162.478258]  ? set_blocksize+0x95/0x150
[  162.478538]  get_tree_bdev+0x232/0x370
[  162.478789]  ? put_ntfs+0x1d0/0x1d0
[  162.479038]  ntfs_fs_get_tree+0x15/0x20
[  162.479374]  vfs_get_tree+0x4c/0x130
[  162.479729]  path_mount+0x654/0xfe0
[  162.480124]  ? putname+0x80/0xa0
[  162.480484]  ? finish_automount+0x2e0/0x2e0
[  162.480894]  ? putname+0x80/0xa0
[  162.481467]  ? kmem_cache_free+0x1c4/0x440
[  162.482280]  ? putname+0x80/0xa0
[  162.482714]  do_mount+0xd6/0xf0
[  162.483264]  ? path_mount+0xfe0/0xfe0
[  162.484782]  ? __kasan_check_write+0x14/0x20
[  162.485593]  __x64_sys_mount+0xca/0x110
[  162.486024]  do_syscall_64+0x3b/0x90
[  162.486543]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  162.487141] RIP: 0033:0x7f9d374e948a
[  162.488324] Code: 48 8b 0d 11 fa 2a 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 008
[  162.489728] RSP: 002b:00007ffe30e73d18 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
[  162.490971] RAX: ffffffffffffffda RBX: 0000561cdb43a060 RCX: 00007f9d374e948a
[  162.491669] RDX: 0000561cdb43a260 RSI: 0000561cdb43a2e0 RDI: 0000561cdb442af0
[  162.492050] RBP: 0000000000000000 R08: 0000561cdb43a280 R09: 0000000000000020
[  162.492459] R10: 00000000c0ed0000 R11: 0000000000000206 R12: 0000561cdb442af0
[  162.493183] R13: 0000561cdb43a260 R14: 0000000000000000 R15: 00000000ffffffff
[  162.493644]  </TASK>
[  162.493908]
[  162.494214] The buggy address belongs to the physical page:
[  162.494761] page:000000003e38a3d5 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x37bc
[  162.496064] flags: 0xfffffc0000000(node=0|zone=1|lastcpupid=0x1fffff)
[  162.497278] raw: 000fffffc0000000 ffffea00000df1c8 ffffea00000df008 0000000000000000
[  162.498928] raw: 0000000000000000 0000000000240000 00000000ffffffff 0000000000000000
[  162.500542] page dumped because: kasan: bad access detected
[  162.501057]
[  162.501242] Memory state around the buggy address:
[  162.502230]  ffff8880037bc980: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[  162.502977]  ffff8880037bca00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[  162.503522] >ffff8880037bca80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[  162.503963]                             ^
[  162.504370]  ffff8880037bcb00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[  162.504766]  ffff8880037bcb80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff

Signed-off-by: Edward Lo <[email protected]>
Signed-off-by: Konstantin Komarov <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
scpcom pushed a commit to scpcom/linux that referenced this pull request Mar 24, 2024
[ Upstream commit 08e8cf5 ]

This adds a length check to guarantee the retrieved index root is legit.

[  162.459513] BUG: KASAN: use-after-free in hdr_find_e.isra.0+0x10c/0x320
[  162.460176] Read of size 2 at addr ffff8880037bca99 by task mount/243
[  162.460851]
[  162.461252] CPU: 0 PID: 243 Comm: mount Not tainted 6.0.0-rc7 ayufan-rock64#42
[  162.461744] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
[  162.462609] Call Trace:
[  162.462954]  <TASK>
[  162.463276]  dump_stack_lvl+0x49/0x63
[  162.463822]  print_report.cold+0xf5/0x689
[  162.464608]  ? unwind_get_return_address+0x3a/0x60
[  162.465766]  ? hdr_find_e.isra.0+0x10c/0x320
[  162.466975]  kasan_report+0xa7/0x130
[  162.467506]  ? _raw_spin_lock_irq+0xc0/0xf0
[  162.467998]  ? hdr_find_e.isra.0+0x10c/0x320
[  162.468536]  __asan_load2+0x68/0x90
[  162.468923]  hdr_find_e.isra.0+0x10c/0x320
[  162.469282]  ? cmp_uints+0xe0/0xe0
[  162.469557]  ? cmp_sdh+0x90/0x90
[  162.469864]  ? ni_find_attr+0x214/0x300
[  162.470217]  ? ni_load_mi+0x80/0x80
[  162.470479]  ? entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  162.470931]  ? ntfs_bread_run+0x190/0x190
[  162.471307]  ? indx_get_root+0xe4/0x190
[  162.471556]  ? indx_get_root+0x140/0x190
[  162.471833]  ? indx_init+0x1e0/0x1e0
[  162.472069]  ? fnd_clear+0x115/0x140
[  162.472363]  ? _raw_spin_lock_irqsave+0x100/0x100
[  162.472731]  indx_find+0x184/0x470
[  162.473461]  ? sysvec_apic_timer_interrupt+0x57/0xc0
[  162.474429]  ? indx_find_buffer+0x2d0/0x2d0
[  162.474704]  ? do_syscall_64+0x3b/0x90
[  162.474962]  dir_search_u+0x196/0x2f0
[  162.475381]  ? ntfs_nls_to_utf16+0x450/0x450
[  162.475661]  ? ntfs_security_init+0x3d6/0x440
[  162.475906]  ? is_sd_valid+0x180/0x180
[  162.476191]  ntfs_extend_init+0x13f/0x2c0
[  162.476496]  ? ntfs_fix_post_read+0x130/0x130
[  162.476861]  ? iput.part.0+0x286/0x320
[  162.477325]  ntfs_fill_super+0x11e0/0x1b50
[  162.477709]  ? put_ntfs+0x1d0/0x1d0
[  162.477970]  ? vsprintf+0x20/0x20
[  162.478258]  ? set_blocksize+0x95/0x150
[  162.478538]  get_tree_bdev+0x232/0x370
[  162.478789]  ? put_ntfs+0x1d0/0x1d0
[  162.479038]  ntfs_fs_get_tree+0x15/0x20
[  162.479374]  vfs_get_tree+0x4c/0x130
[  162.479729]  path_mount+0x654/0xfe0
[  162.480124]  ? putname+0x80/0xa0
[  162.480484]  ? finish_automount+0x2e0/0x2e0
[  162.480894]  ? putname+0x80/0xa0
[  162.481467]  ? kmem_cache_free+0x1c4/0x440
[  162.482280]  ? putname+0x80/0xa0
[  162.482714]  do_mount+0xd6/0xf0
[  162.483264]  ? path_mount+0xfe0/0xfe0
[  162.484782]  ? __kasan_check_write+0x14/0x20
[  162.485593]  __x64_sys_mount+0xca/0x110
[  162.486024]  do_syscall_64+0x3b/0x90
[  162.486543]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[  162.487141] RIP: 0033:0x7f9d374e948a
[  162.488324] Code: 48 8b 0d 11 fa 2a 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 008
[  162.489728] RSP: 002b:00007ffe30e73d18 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
[  162.490971] RAX: ffffffffffffffda RBX: 0000561cdb43a060 RCX: 00007f9d374e948a
[  162.491669] RDX: 0000561cdb43a260 RSI: 0000561cdb43a2e0 RDI: 0000561cdb442af0
[  162.492050] RBP: 0000000000000000 R08: 0000561cdb43a280 R09: 0000000000000020
[  162.492459] R10: 00000000c0ed0000 R11: 0000000000000206 R12: 0000561cdb442af0
[  162.493183] R13: 0000561cdb43a260 R14: 0000000000000000 R15: 00000000ffffffff
[  162.493644]  </TASK>
[  162.493908]
[  162.494214] The buggy address belongs to the physical page:
[  162.494761] page:000000003e38a3d5 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x37bc
[  162.496064] flags: 0xfffffc0000000(node=0|zone=1|lastcpupid=0x1fffff)
[  162.497278] raw: 000fffffc0000000 ffffea00000df1c8 ffffea00000df008 0000000000000000
[  162.498928] raw: 0000000000000000 0000000000240000 00000000ffffffff 0000000000000000
[  162.500542] page dumped because: kasan: bad access detected
[  162.501057]
[  162.501242] Memory state around the buggy address:
[  162.502230]  ffff8880037bc980: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[  162.502977]  ffff8880037bca00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[  162.503522] >ffff8880037bca80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[  162.503963]                             ^
[  162.504370]  ffff8880037bcb00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[  162.504766]  ffff8880037bcb80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff

Signed-off-by: Edward Lo <[email protected]>
Signed-off-by: Konstantin Komarov <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
scpcom pushed a commit to scpcom/linux that referenced this pull request Sep 23, 2024
[ Upstream commit 97d833c ]

ACLs in Spectrum-2 and newer ASICs can reside in the algorithmic TCAM
(A-TCAM) or in the ordinary circuit TCAM (C-TCAM). The former can
contain more ACLs (i.e., tc filters), but the number of masks in each
region (i.e., tc chain) is limited.

In order to mitigate the effects of the above limitation, the device
allows filters to share a single mask if their masks only differ in up
to 8 consecutive bits. For example, dst_ip/25 can be represented using
dst_ip/24 with a delta of 1 bit. The C-TCAM does not have a limit on the
number of masks being used (and therefore does not support mask
aggregation), but can contain a limited number of filters.

The driver uses the "objagg" library to perform the mask aggregation by
passing it objects that consist of the filter's mask and whether the
filter is to be inserted into the A-TCAM or the C-TCAM since filters in
different TCAMs cannot share a mask.

The set of created objects is dependent on the insertion order of the
filters and is not necessarily optimal. Therefore, the driver will
periodically ask the library to compute a more optimal set ("hints") by
looking at all the existing objects.

When the library asks the driver whether two objects can be aggregated
the driver only compares the provided masks and ignores the A-TCAM /
C-TCAM indication. This is the right thing to do since the goal is to
move as many filters as possible to the A-TCAM. The driver also forbids
two identical masks from being aggregated since this can only happen if
one was intentionally put in the C-TCAM to avoid a conflict in the
A-TCAM.

The above can result in the following set of hints:

H1: {mask X, A-TCAM} -> H2: {mask Y, A-TCAM} // X is Y + delta
H3: {mask Y, C-TCAM} -> H4: {mask Z, A-TCAM} // Y is Z + delta

After getting the hints from the library the driver will start migrating
filters from one region to another while consulting the computed hints
and instructing the device to perform a lookup in both regions during
the transition.

Assuming a filter with mask X is being migrated into the A-TCAM in the
new region, the hints lookup will return H1. Since H2 is the parent of
H1, the library will try to find the object associated with it and
create it if necessary in which case another hints lookup (recursive)
will be performed. This hints lookup for {mask Y, A-TCAM} will either
return H2 or H3 since the driver passes the library an object comparison
function that ignores the A-TCAM / C-TCAM indication.

This can eventually lead to nested objects which are not supported by
the library [1].

Fix by removing the object comparison function from both the driver and
the library as the driver was the only user. That way the lookup will
only return exact matches.

I do not have a reliable reproducer that can reproduce the issue in a
timely manner, but before the fix the issue would reproduce in several
minutes and with the fix it does not reproduce in over an hour.

Note that the current usefulness of the hints is limited because they
include the C-TCAM indication and represent aggregation that cannot
actually happen. This will be addressed in net-next.

[1]
WARNING: CPU: 0 PID: 153 at lib/objagg.c:170 objagg_obj_parent_assign+0xb5/0xd0
Modules linked in:
CPU: 0 PID: 153 Comm: kworker/0:18 Not tainted 6.9.0-rc6-custom-g70fbc2c1c38b ayufan-rock64#42
Hardware name: Mellanox Technologies Ltd. MSN3700C/VMOD0008, BIOS 5.11 10/10/2018
Workqueue: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work
RIP: 0010:objagg_obj_parent_assign+0xb5/0xd0
[...]
Call Trace:
 <TASK>
 __objagg_obj_get+0x2bb/0x580
 objagg_obj_get+0xe/0x80
 mlxsw_sp_acl_erp_mask_get+0xb5/0xf0
 mlxsw_sp_acl_atcam_entry_add+0xe8/0x3c0
 mlxsw_sp_acl_tcam_entry_create+0x5e/0xa0
 mlxsw_sp_acl_tcam_vchunk_migrate_one+0x16b/0x270
 mlxsw_sp_acl_tcam_vregion_rehash_work+0xbe/0x510
 process_one_work+0x151/0x370

Fixes: 9069a38 ("lib: objagg: implement optimization hints assembly and use hints for object creation")
Signed-off-by: Ido Schimmel <[email protected]>
Reviewed-by: Amit Cohen <[email protected]>
Tested-by: Alexander Zubkov <[email protected]>
Signed-off-by: Petr Machata <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
scpcom pushed a commit to scpcom/linux that referenced this pull request Sep 23, 2024
[ Upstream commit 97d833c ]

ACLs in Spectrum-2 and newer ASICs can reside in the algorithmic TCAM
(A-TCAM) or in the ordinary circuit TCAM (C-TCAM). The former can
contain more ACLs (i.e., tc filters), but the number of masks in each
region (i.e., tc chain) is limited.

In order to mitigate the effects of the above limitation, the device
allows filters to share a single mask if their masks only differ in up
to 8 consecutive bits. For example, dst_ip/25 can be represented using
dst_ip/24 with a delta of 1 bit. The C-TCAM does not have a limit on the
number of masks being used (and therefore does not support mask
aggregation), but can contain a limited number of filters.

The driver uses the "objagg" library to perform the mask aggregation by
passing it objects that consist of the filter's mask and whether the
filter is to be inserted into the A-TCAM or the C-TCAM since filters in
different TCAMs cannot share a mask.

The set of created objects is dependent on the insertion order of the
filters and is not necessarily optimal. Therefore, the driver will
periodically ask the library to compute a more optimal set ("hints") by
looking at all the existing objects.

When the library asks the driver whether two objects can be aggregated
the driver only compares the provided masks and ignores the A-TCAM /
C-TCAM indication. This is the right thing to do since the goal is to
move as many filters as possible to the A-TCAM. The driver also forbids
two identical masks from being aggregated since this can only happen if
one was intentionally put in the C-TCAM to avoid a conflict in the
A-TCAM.

The above can result in the following set of hints:

H1: {mask X, A-TCAM} -> H2: {mask Y, A-TCAM} // X is Y + delta
H3: {mask Y, C-TCAM} -> H4: {mask Z, A-TCAM} // Y is Z + delta

After getting the hints from the library the driver will start migrating
filters from one region to another while consulting the computed hints
and instructing the device to perform a lookup in both regions during
the transition.

Assuming a filter with mask X is being migrated into the A-TCAM in the
new region, the hints lookup will return H1. Since H2 is the parent of
H1, the library will try to find the object associated with it and
create it if necessary in which case another hints lookup (recursive)
will be performed. This hints lookup for {mask Y, A-TCAM} will either
return H2 or H3 since the driver passes the library an object comparison
function that ignores the A-TCAM / C-TCAM indication.

This can eventually lead to nested objects which are not supported by
the library [1].

Fix by removing the object comparison function from both the driver and
the library as the driver was the only user. That way the lookup will
only return exact matches.

I do not have a reliable reproducer that can reproduce the issue in a
timely manner, but before the fix the issue would reproduce in several
minutes and with the fix it does not reproduce in over an hour.

Note that the current usefulness of the hints is limited because they
include the C-TCAM indication and represent aggregation that cannot
actually happen. This will be addressed in net-next.

[1]
WARNING: CPU: 0 PID: 153 at lib/objagg.c:170 objagg_obj_parent_assign+0xb5/0xd0
Modules linked in:
CPU: 0 PID: 153 Comm: kworker/0:18 Not tainted 6.9.0-rc6-custom-g70fbc2c1c38b ayufan-rock64#42
Hardware name: Mellanox Technologies Ltd. MSN3700C/VMOD0008, BIOS 5.11 10/10/2018
Workqueue: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work
RIP: 0010:objagg_obj_parent_assign+0xb5/0xd0
[...]
Call Trace:
 <TASK>
 __objagg_obj_get+0x2bb/0x580
 objagg_obj_get+0xe/0x80
 mlxsw_sp_acl_erp_mask_get+0xb5/0xf0
 mlxsw_sp_acl_atcam_entry_add+0xe8/0x3c0
 mlxsw_sp_acl_tcam_entry_create+0x5e/0xa0
 mlxsw_sp_acl_tcam_vchunk_migrate_one+0x16b/0x270
 mlxsw_sp_acl_tcam_vregion_rehash_work+0xbe/0x510
 process_one_work+0x151/0x370

Fixes: 9069a38 ("lib: objagg: implement optimization hints assembly and use hints for object creation")
Signed-off-by: Ido Schimmel <[email protected]>
Reviewed-by: Amit Cohen <[email protected]>
Tested-by: Alexander Zubkov <[email protected]>
Signed-off-by: Petr Machata <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>
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