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2020-07-15afs: Fix interruption of operationsDavid Howells2-2/+3
The afs filesystem driver allows unstarted operations to be cancelled by signal, but most of these can easily be restarted (mkdir for example). The primary culprits for reproducing this are those applications that use SIGALRM to display a progress counter. File lock-extension operation is marked uninterruptible as we have a limited time in which to do it, and the release op is marked uninterruptible also as if we fail to unlock a file, we'll have to wait 20 mins before anyone can lock it again. The store operation logs a warning if it gets interruption, e.g.: kAFS: Unexpected error from FS.StoreData -4 because it's run from the background - but it can also be run from fdatasync()-type things. However, store options aren't marked interruptible at the moment. Fix this in the following ways: (1) Mark store operations as uninterruptible. It might make sense to relax this for certain situations, but I'm not sure how to make sure that background store ops aren't affected by signals to foreground processes that happen to trigger them. (2) In afs_get_io_locks(), where we're getting the serialisation lock for talking to the fileserver, return ERESTARTSYS rather than EINTR because a lot of the operations (e.g. mkdir) are restartable if we haven't yet started sending the op to the server. Fixes: e49c7b2f6de7 ("afs: Build an abstraction around an "operation" concept") Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-15platform/x86: asus-wmi: allow BAT1 battery nameVasiliy Kupriakov1-0/+1
The battery on my laptop ASUS TUF Gaming FX706II is named BAT1. This patch allows battery extension to load. Signed-off-by: Vasiliy Kupriakov <rublag-ns@yandex.ru> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-07-15platform/x86: ISST: Add new PCI device idsSrinivas Pandruvada3-0/+5
Added new PCI device ids for supporting mailbox and MMIO interface for Sapphire Rapids. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-07-15platform/x86: thinkpad_acpi: Revert "Use strndup_user() in dispatch_proc_write()"Andy Shevchenko1-3/+11
This reverts commit 35d13c7a05126a5a54a1ef40aff4c6984474e604. This broke procfs interface due to neglecting the fact that the strings are not coming NULL terminated. Revert the change till we will have a better clean up. Fixes: 35d13c7a0512 ("platform/x86: thinkpad_acpi: Use strndup_user() in dispatch_proc_write()") Reported-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-07-15Revert "thermal: mediatek: fix register index error"Enric Balletbo i Serra1-4/+2
This reverts commit eb9aecd90d1a39601e91cd08b90d5fee51d321a6 The above patch is supposed to fix a register index error on mt2701. It is not clear if the problem solved is a hang or just an invalid value returned, my guess is the second. The patch introduces, though, a new hang on MT8173 device making them unusable. So, seems reasonable, revert the patch because introduces a worst issue. The reason I send a revert instead of trying to fix the issue for MT8173 is because the information needed to fix the issue is in the datasheet and is not public. So I am not really able to fix it. Fixes the following bug when CONFIG_MTK_THERMAL is set on MT8173 devices. [ 2.222488] Unable to handle kernel paging request at virtual address ffff8000125f5001 [ 2.230421] Mem abort info: [ 2.233207] ESR = 0x96000021 [ 2.236261] EC = 0x25: DABT (current EL), IL = 32 bits [ 2.241571] SET = 0, FnV = 0 [ 2.244623] EA = 0, S1PTW = 0 [ 2.247762] Data abort info: [ 2.250640] ISV = 0, ISS = 0x00000021 [ 2.254473] CM = 0, WnR = 0 [ 2.257544] swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000000041850000 [ 2.264251] [ffff8000125f5001] pgd=000000013ffff003, pud=000000013fffe003, pmd=000000013fff9003, pte=006800001100b707 [ 2.274867] Internal error: Oops: 96000021 [#1] PREEMPT SMP [ 2.280432] Modules linked in: [ 2.283483] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.7.0-rc6+ #162 [ 2.289914] Hardware name: Google Elm (DT) [ 2.294003] pstate: 20000005 (nzCv daif -PAN -UAO) [ 2.298792] pc : mtk_read_temp+0xb8/0x1c8 [ 2.302793] lr : mtk_read_temp+0x7c/0x1c8 [ 2.306794] sp : ffff80001003b930 [ 2.310100] x29: ffff80001003b930 x28: 0000000000000000 [ 2.315404] x27: 0000000000000002 x26: ffff0000f9550b10 [ 2.320709] x25: ffff0000f9550a80 x24: 0000000000000090 [ 2.326014] x23: ffff80001003ba24 x22: 00000000610344c0 [ 2.331318] x21: 0000000000002710 x20: 00000000000001f4 [ 2.336622] x19: 0000000000030d40 x18: ffff800011742ec0 [ 2.341926] x17: 0000000000000001 x16: 0000000000000001 [ 2.347230] x15: ffffffffffffffff x14: ffffff0000000000 [ 2.352535] x13: ffffffffffffffff x12: 0000000000000028 [ 2.357839] x11: 0000000000000003 x10: ffff800011295ec8 [ 2.363143] x9 : 000000000000291b x8 : 0000000000000002 [ 2.368447] x7 : 00000000000000a8 x6 : 0000000000000004 [ 2.373751] x5 : 0000000000000000 x4 : ffff800011295cb0 [ 2.379055] x3 : 0000000000000002 x2 : ffff8000125f5001 [ 2.384359] x1 : 0000000000000001 x0 : ffff0000f9550a80 [ 2.389665] Call trace: [ 2.392105] mtk_read_temp+0xb8/0x1c8 [ 2.395760] of_thermal_get_temp+0x2c/0x40 [ 2.399849] thermal_zone_get_temp+0x78/0x160 [ 2.404198] thermal_zone_device_update.part.0+0x3c/0x1f8 [ 2.409589] thermal_zone_device_update+0x34/0x48 [ 2.414286] of_thermal_set_mode+0x58/0x88 [ 2.418375] thermal_zone_of_sensor_register+0x1a8/0x1d8 [ 2.423679] devm_thermal_zone_of_sensor_register+0x64/0xb0 [ 2.429242] mtk_thermal_probe+0x690/0x7d0 [ 2.433333] platform_drv_probe+0x5c/0xb0 [ 2.437335] really_probe+0xe4/0x448 [ 2.440901] driver_probe_device+0xe8/0x140 [ 2.445077] device_driver_attach+0x7c/0x88 [ 2.449252] __driver_attach+0xac/0x178 [ 2.453082] bus_for_each_dev+0x78/0xc8 [ 2.456909] driver_attach+0x2c/0x38 [ 2.460476] bus_add_driver+0x14c/0x230 [ 2.464304] driver_register+0x6c/0x128 [ 2.468131] __platform_driver_register+0x50/0x60 [ 2.472831] mtk_thermal_driver_init+0x24/0x30 [ 2.477268] do_one_initcall+0x50/0x298 [ 2.481098] kernel_init_freeable+0x1ec/0x264 [ 2.485450] kernel_init+0x1c/0x110 [ 2.488931] ret_from_fork+0x10/0x1c [ 2.492502] Code: f9401081 f9400402 b8a67821 8b010042 (b9400042) [ 2.498599] ---[ end trace e43e3105ed27dc99 ]--- [ 2.503367] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b [ 2.511020] SMP: stopping secondary CPUs [ 2.514941] Kernel Offset: disabled [ 2.518421] CPU features: 0x090002,25006005 [ 2.522595] Memory Limit: none [ 2.525644] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b ]-- Cc: Michael Kao <michael.kao@mediatek.com> Fixes: eb9aecd90d1a ("thermal: mediatek: fix register index error") Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200707103412.1010823-1-enric.balletbo@collabora.com
2020-07-15thermal: int3403_thermal: Downgrade error messageAlex Hung1-1/+1
Downgrade "Unsupported event" message from dev_err to dev_dbg to avoid flooding with this message on some platforms. Cc: stable@vger.kernel.org # v5.4+ Suggested-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Alex Hung <alex.hung@canonical.com> [ rzhang: fix typo in changelog ] Signed-off-by: Zhang Rui <rui.zhang@intel.com> Link: https://lore.kernel.org/r/20200615223957.183153-1-alex.hung@canonical.com
2020-07-14thermal/int340x_thermal: Prevent page fault on .set_mode() opBartosz Szczepanek1-1/+6
Starting from commit "thermal/int340x_thermal: Don't require IDSP to exist", priv->current_uuid_index is initialized to -1. This value may be passed to int3400_thermal_run_osc() from int3400_thermal_set_mode, contributing to page fault when accessing int3400_thermal_uuids array at index -1. This commit adds a check on uuid value to int3400_thermal_run_osc. Fixes: 8d485da0ddee ("thermal/int340x_thermal: Don't require IDSP to exist") Signed-off-by: Bartosz Szczepanek <bsz@semihalf.com> Reviewed-by: Pandruvada, Srinivas <srinivas.pandruvada@linux.intel.com> [ rzhang: Add Fixes tag ] Signed-off-by: Zhang Rui <rui.zhang@intel.com> Link: https://lore.kernel.org/r/20200708134613.131555-1-bsz@semihalf.com
2020-07-13mm: document warning in move_normal_pmd() and make it warn only onceLinus Torvalds1-2/+21
Naresh Kamboju reported that the LTP tests can cause warnings on i386 going back all the way to v5.0, and bisected it to commit 2c91bd4a4e2e ("mm: speed up mremap by 20x on large regions"). The warning in move_normal_pmd() is actually mostly correct, but we have a very unusual special case at process creation time, when we may move the stack down with an overlapping mode (kind of like a "memmove()" except using the page tables). And when you have just the right condition of "move a large initial stack by the right alignment in the end, but with the early part of the move being only page-aligned", we'll be in a situation where we're trying to move a normal PMD entry on top of an already existing - but now empty - PMD entry. The warning is still worth having, in case it ever triggers other cases, and perhaps as a reminder that we could do the stack move case more efficiently (although it's clearly rare enough that it probably doesn't matter). But make it do WARN_ON_ONCE(), so that you can't flood the logs with it. And add a *big* comment above it to explain and remind us what's going on, because it took some figuring out to see how this could trigger. Kudos to Joel Fernandes for debugging this. Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org> Debugged-and-acked-by: Joel Fernandes <joel@joelfernandes.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-12Linux 5.8-rc5Linus Torvalds1-1/+1
2020-07-12io_uring: fix not initialised work->flagsPavel Begunkov1-1/+2
59960b9deb535 ("io_uring: fix lazy work init") tried to fix missing io_req_init_async(), but left out work.flags and hash. Do it earlier. Fixes: 7cdaf587de7c ("io_uring: avoid whole io_wq_work copy for requests completed inline") Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-12io_uring: fix missing msg_name assignmentPavel Begunkov1-0/+2
Ensure to set msg.msg_name for the async portion of send/recvmsg, as the header copy will copy to/from it. Cc: stable@vger.kernel.org # v5.5+ Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-11clk: Specify IOMEM dependency for HSDK pll driverDavid Gow1-0/+1
The HSDK pll driver uses the devm_ioremap_resource function, but does not specify a dependency on IOMEM in Kconfig. This causes a build failure on architectures without IOMEM, for example, UML (notably with make allyesconfig). Fix this by making CONFIG_CLK_HSDK depend on CONFIG_IOMEM. Signed-off-by: David Gow <davidgow@google.com> Link: https://lore.kernel.org/r/20200630043214.1080961-1-davidgow@google.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-07-11clk: AST2600: Add mux for EMMC clockEddie James1-8/+41
The EMMC clock can be derived from either the HPLL or the MPLL. Register a clock mux so that the rate is calculated correctly based upon the parent. Signed-off-by: Eddie James <eajames@linux.ibm.com> Reviewed-by: Andrew Jeffery <andrew@aj.id.au> Link: https://lore.kernel.org/r/20200709195706.12741-2-eajames@linux.ibm.com Acked-by: Joel Stanley <joel@jms.id.au> Fixes: d3d04f6c330a ("clk: Add support for AST2600 SoC") Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-07-11clk: mvebu: ARMADA_AP_CPU_CLK needs to select ARMADA_AP_CP_HELPERNathan Chancellor1-0/+1
When building arm32 allmodconfig: ld.lld: error: undefined symbol: ap_cp_unique_name >>> referenced by ap-cpu-clk.c >>> clk/mvebu/ap-cpu-clk.o:(ap_cpu_clock_probe) in archive drivers/built-in.a ap_cp_unique_name is only compiled into the kernel image when CONFIG_ARMADA_AP_CP_HELPER is selected (as it is not user selectable). However, CONFIG_ARMADA_AP_CPU_CLK does not select it. This has been a problem since the driver was added to the kernel but it was not built before commit c318ea261749 ("cpufreq: ap806: fix cpufreq driver needs ap cpu clk") so it was never noticed. Fixes: f756e362d938 ("clk: mvebu: add CPU clock driver for Armada 7K/8K") Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Link: https://lore.kernel.org/r/20200701201128.2448427-1-natechancellor@gmail.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2020-07-10mips: Remove compiler check in unroll macroNathan Chancellor1-3/+1
CONFIG_CC_IS_GCC is undefined when Clang is used, which breaks the build (see our Travis link below). Clang 8 was chosen as a minimum version for this check because there were some improvements around __builtin_constant_p in that release. In reality, MIPS was not even buildable until clang 9 so that check was not technically necessary. Just remove all compiler checks and just assume that we have a working compiler. Fixes: d4e60453266b ("Restore gcc check in mips asm/unroll.h") Link: https://travis-ci.com/github/ClangBuiltLinux/continuous-integration/jobs/359642821 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-10mlxsw: pci: Fix use-after-free in case of failed devlink reloadIdo Schimmel1-16/+38
In case devlink reload failed, it is possible to trigger a use-after-free when querying the kernel for device info via 'devlink dev info' [1]. This happens because as part of the reload error path the PCI command interface is de-initialized and its mailboxes are freed. When the devlink '->info_get()' callback is invoked the device is queried via the command interface and the freed mailboxes are accessed. Fix this by initializing the command interface once during probe and not during every reload. This is consistent with the other bus used by mlxsw (i.e., 'mlxsw_i2c') and also allows user space to query the running firmware version (for example) from the device after a failed reload. [1] BUG: KASAN: use-after-free in memcpy include/linux/string.h:406 [inline] BUG: KASAN: use-after-free in mlxsw_pci_cmd_exec+0x177/0xa60 drivers/net/ethernet/mellanox/mlxsw/pci.c:1675 Write of size 4096 at addr ffff88810ae32000 by task syz-executor.1/2355 CPU: 1 PID: 2355 Comm: syz-executor.1 Not tainted 5.8.0-rc2+ #29 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xf6/0x16e lib/dump_stack.c:118 print_address_description.constprop.0+0x1c/0x250 mm/kasan/report.c:383 __kasan_report mm/kasan/report.c:513 [inline] kasan_report.cold+0x1f/0x37 mm/kasan/report.c:530 check_memory_region_inline mm/kasan/generic.c:186 [inline] check_memory_region+0x14e/0x1b0 mm/kasan/generic.c:192 memcpy+0x39/0x60 mm/kasan/common.c:106 memcpy include/linux/string.h:406 [inline] mlxsw_pci_cmd_exec+0x177/0xa60 drivers/net/ethernet/mellanox/mlxsw/pci.c:1675 mlxsw_cmd_exec+0x249/0x550 drivers/net/ethernet/mellanox/mlxsw/core.c:2335 mlxsw_cmd_access_reg drivers/net/ethernet/mellanox/mlxsw/cmd.h:859 [inline] mlxsw_core_reg_access_cmd drivers/net/ethernet/mellanox/mlxsw/core.c:1938 [inline] mlxsw_core_reg_access+0x2f6/0x540 drivers/net/ethernet/mellanox/mlxsw/core.c:1985 mlxsw_reg_query drivers/net/ethernet/mellanox/mlxsw/core.c:2000 [inline] mlxsw_devlink_info_get+0x17f/0x6e0 drivers/net/ethernet/mellanox/mlxsw/core.c:1090 devlink_nl_info_fill.constprop.0+0x13c/0x2d0 net/core/devlink.c:4588 devlink_nl_cmd_info_get_dumpit+0x246/0x460 net/core/devlink.c:4648 genl_lock_dumpit+0x85/0xc0 net/netlink/genetlink.c:575 netlink_dump+0x515/0xe50 net/netlink/af_netlink.c:2245 __netlink_dump_start+0x53d/0x830 net/netlink/af_netlink.c:2353 genl_family_rcv_msg_dumpit.isra.0+0x296/0x300 net/netlink/genetlink.c:638 genl_family_rcv_msg net/netlink/genetlink.c:733 [inline] genl_rcv_msg+0x78d/0x9d0 net/netlink/genetlink.c:753 netlink_rcv_skb+0x152/0x440 net/netlink/af_netlink.c:2469 genl_rcv+0x24/0x40 net/netlink/genetlink.c:764 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] netlink_unicast+0x53a/0x750 net/netlink/af_netlink.c:1329 netlink_sendmsg+0x850/0xd90 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0x150/0x190 net/socket.c:672 ____sys_sendmsg+0x6d8/0x840 net/socket.c:2363 ___sys_sendmsg+0xff/0x170 net/socket.c:2417 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2450 do_syscall_64+0x56/0xa0 arch/x86/entry/common.c:359 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Fixes: a9c8336f6544 ("mlxsw: core: Add support for devlink info command") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-10mlxsw: spectrum_router: Remove inappropriate usage of WARN_ON()Ido Schimmel1-1/+1
We should not trigger a warning when a memory allocation fails. Remove the WARN_ON(). The warning is constantly triggered by syzkaller when it is injecting faults: [ 2230.758664] FAULT_INJECTION: forcing a failure. [ 2230.758664] name failslab, interval 1, probability 0, space 0, times 0 [ 2230.762329] CPU: 3 PID: 1407 Comm: syz-executor.0 Not tainted 5.8.0-rc2+ #28 ... [ 2230.898175] WARNING: CPU: 3 PID: 1407 at drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c:6265 mlxsw_sp_router_fib_event+0xfad/0x13e0 [ 2230.898179] Kernel panic - not syncing: panic_on_warn set ... [ 2230.898183] CPU: 3 PID: 1407 Comm: syz-executor.0 Not tainted 5.8.0-rc2+ #28 [ 2230.898190] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014 Fixes: 3057224e014c ("mlxsw: spectrum_router: Implement FIB offload in deferred work") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-10net: macb: fix call to pm_runtime in the suspend/resume functionsNicolas Ferre1-2/+4
The calls to pm_runtime_force_suspend/resume() functions are only relevant if the device is not configured to act as a WoL wakeup source. Add the device_may_wakeup() test before calling them. Fixes: 3e2a5e153906 ("net: macb: add wake-on-lan support via magic packet") Cc: Claudiu Beznea <claudiu.beznea@microchip.com> Cc: Harini Katakam <harini.katakam@xilinx.com> Cc: Sergio Prado <sergio.prado@e-labworks.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-10net: macb: fix macb_suspend() by removing call to netif_carrier_off()Nicolas Ferre1-1/+0
As we now use the phylink call to phylink_stop() in the non-WoL path, there is no need for this call to netif_carrier_off() anymore. It can disturb the underlying phylink FSM. Fixes: 7897b071ac3b ("net: macb: convert to phylink") Cc: Claudiu Beznea <claudiu.beznea@microchip.com> Cc: Harini Katakam <harini.katakam@xilinx.com> Cc: Antoine Tenart <antoine.tenart@bootlin.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-10net: macb: fix macb_get/set_wol() when moving to phylinkNicolas Ferre1-6/+12
Keep previous function goals and integrate phylink actions to them. phylink_ethtool_get_wol() is not enough to figure out if Ethernet driver supports Wake-on-Lan. Initialization of "supported" and "wolopts" members is done in phylink function, no need to keep them in calling function. phylink_ethtool_set_wol() return value is considered and determines if the MAC has to handle WoL or not. The case where the PHY doesn't implement WoL leads to the MAC configuring it to provide this feature. Fixes: 7897b071ac3b ("net: macb: convert to phylink") Cc: Claudiu Beznea <claudiu.beznea@microchip.com> Cc: Harini Katakam <harini.katakam@xilinx.com> Cc: Antoine Tenart <antoine.tenart@bootlin.com> Cc: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-10net: macb: mark device wake capable when "magic-packet" property presentNicolas Ferre1-1/+1
Change the way the "magic-packet" DT property is handled in the macb_probe() function, matching DT binding documentation. Now we mark the device as "wakeup capable" instead of calling the device_init_wakeup() function that would enable the wakeup source. For Ethernet WoL, enabling the wakeup_source is done by using ethtool and associated macb_set_wol() function that already calls device_set_wakeup_enable() for this purpose. That would reduce power consumption by cutting more clocks if "magic-packet" property is set but WoL is not configured by ethtool. Fixes: 3e2a5e153906 ("net: macb: add wake-on-lan support via magic packet") Cc: Claudiu Beznea <claudiu.beznea@microchip.com> Cc: Harini Katakam <harini.katakam@xilinx.com> Cc: Sergio Prado <sergio.prado@e-labworks.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-10net: macb: fix wakeup test in runtime suspend/resume routinesNicolas Ferre1-2/+2
Use the proper struct device pointer to check if the wakeup flag and wakeup source are positioned. Use the one passed by function call which is equivalent to &bp->dev->dev.parent. It's preventing the trigger of a spurious interrupt in case the Wake-on-Lan feature is used. Fixes: d54f89af6cc4 ("net: macb: Add pm runtime support") Cc: Claudiu Beznea <claudiu.beznea@microchip.com> Cc: Harini Katakam <harini.katakam@xilinx.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-10bnxt_en: fix NULL dereference in case SR-IOV configuration failsDavide Caratti1-1/+1
we need to set 'active_vfs' back to 0, if something goes wrong during the allocation of SR-IOV resources: otherwise, further VF configurations will wrongly assume that bp->pf.vf[x] are valid memory locations, and commands like the ones in the following sequence: # echo 2 >/sys/bus/pci/devices/${ADDR}/sriov_numvfs # ip link set dev ens1f0np0 up # ip link set dev ens1f0np0 vf 0 trust on will cause a kernel crash similar to this: bnxt_en 0000:3b:00.0: not enough MMIO resources for SR-IOV BUG: kernel NULL pointer dereference, address: 0000000000000014 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: 0000 [#1] SMP PTI CPU: 43 PID: 2059 Comm: ip Tainted: G I 5.8.0-rc2.upstream+ #871 Hardware name: Dell Inc. PowerEdge R740/08D89F, BIOS 2.2.11 06/13/2019 RIP: 0010:bnxt_set_vf_trust+0x5b/0x110 [bnxt_en] Code: 44 24 58 31 c0 e8 f5 fb ff ff 85 c0 0f 85 b6 00 00 00 48 8d 1c 5b 41 89 c6 b9 0b 00 00 00 48 c1 e3 04 49 03 9c 24 f0 0e 00 00 <8b> 43 14 89 c2 83 c8 10 83 e2 ef 45 84 ed 49 89 e5 0f 44 c2 4c 89 RSP: 0018:ffffac6246a1f570 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000000000b RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff98b28f538900 RBP: ffff98b28f538900 R08: 0000000000000000 R09: 0000000000000008 R10: ffffffffb9515be0 R11: ffffac6246a1f678 R12: ffff98b28f538000 R13: 0000000000000001 R14: 0000000000000000 R15: ffffffffc05451e0 FS: 00007fde0f688800(0000) GS:ffff98baffd40000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000014 CR3: 000000104bb0a003 CR4: 00000000007606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: do_setlink+0x994/0xfe0 __rtnl_newlink+0x544/0x8d0 rtnl_newlink+0x47/0x70 rtnetlink_rcv_msg+0x29f/0x350 netlink_rcv_skb+0x4a/0x110 netlink_unicast+0x21d/0x300 netlink_sendmsg+0x329/0x450 sock_sendmsg+0x5b/0x60 ____sys_sendmsg+0x204/0x280 ___sys_sendmsg+0x88/0xd0 __sys_sendmsg+0x5e/0xa0 do_syscall_64+0x47/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Fixes: c0c050c58d840 ("bnxt_en: New Broadcom ethernet driver.") Reported-by: Fei Liu <feliu@redhat.com> CC: Jonathan Toppins <jtoppins@redhat.com> CC: Michael Chan <michael.chan@broadcom.com> Signed-off-by: Davide Caratti <dcaratti@redhat.com> Reviewed-by: Michael Chan <michael.chan@broadcom.com> Acked-by: Jonathan Toppins <jtoppins@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-07-10io_uring: account user memory freed when exit has been queuedJens Axboe1-3/+10
We currently account the memory after the exit work has been run, but that leaves a gap where a process has closed its ring and until the memory has been accounted as freed. If the memlocked ulimit is borderline, then that can introduce spurious setup errors returning -ENOMEM because the free work hasn't been run yet. Account this as freed when we close the ring, as not to expose a tiny gap where setting up a new ring can fail. Fixes: 85faa7b8346e ("io_uring: punt final io_ring_ctx wait-and-free to workqueue") Cc: stable@vger.kernel.org # v5.7 Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-10io_uring: fix memleak in io_sqe_files_register()Yang Yingliang1-0/+1
I got a memleak report when doing some fuzz test: BUG: memory leak unreferenced object 0x607eeac06e78 (size 8): comm "test", pid 295, jiffies 4294735835 (age 31.745s) hex dump (first 8 bytes): 00 00 00 00 00 00 00 00 ........ backtrace: [<00000000932632e6>] percpu_ref_init+0x2a/0x1b0 [<0000000092ddb796>] __io_uring_register+0x111d/0x22a0 [<00000000eadd6c77>] __x64_sys_io_uring_register+0x17b/0x480 [<00000000591b89a6>] do_syscall_64+0x56/0xa0 [<00000000864a281d>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 Call percpu_ref_exit() on error path to avoid refcount memleak. Fixes: 05f3fb3c5397 ("io_uring: avoid ring quiesce for fixed file set unregister and update") Cc: stable@vger.kernel.org Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-07-10MAINTAINERS: update email address for Gerald SchaeferGerald Schaefer2-2/+5
Signed-off-by: Gerald Schaefer <gerald.schaefer@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2020-07-10MAINTAINERS: update email address for Heiko CarstensHeiko Carstens2-2/+4
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2020-07-10serial: core: Initialise spin lock before use in uart_configure_port()Andy Shevchenko1-2/+14
The comment near to uart_port_spin_lock_init() says: Ensure that the serial console lock is initialised early. If this port is a console, then the spinlock is already initialised. and there is nothing about enabled or disabled consoles. The commit a3cb39d258ef ("serial: core: Allow detach and attach serial device for console") made a change, which follows the comment, and also to prevent reinitialisation of the lock in use, when user detaches and attaches back the same console device. But this change discovers another issue, that uart_add_one_port() tries to access a spin lock that now may be uninitialised. This happens when a driver expects the serial core to register a console on its behalf. In this case we must initialise a spin lock before use. Fixes: a3cb39d258ef ("serial: core: Allow detach and attach serial device for console") Reported-by: Marc Zyngier <maz@kernel.org> Reported-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reported-by: Guenter Roeck <linux@roeck-us.net> Reported-by: Anatoly Pugachev <matorola@gmail.com> Acked-by: Marc Zyngier <maz@kernel.org> Tested-by: Tony Lindgren <tony@atomide.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Link: https://lore.kernel.org/r/20200706214903.56148-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10serial: mxs-auart: add missed iounmap() in probe failure and removeChuhong Yuan1-4/+8
This driver calls ioremap() in probe, but it misses calling iounmap() in probe's error handler and remove. Add the missed calls to fix it. Fixes: 47d37d6f94cc ("serial: Add auart driver for i.MX23/28") Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Cc: stable <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20200709135608.68290-1-hslester96@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-07-10xen/xenbus: Fix a double free in xenbus_map_ring_pv()Dan Carpenter1-3/+1
When there is an error the caller frees "info->node" so the free here will result in a double free. We should just delete first kfree(). Fixes: 3848e4e0a32a ("xen/xenbus: avoid large structs and arrays on the stack") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20200710113610.GA92345@mwanda Reviewed-by: Juergen Gross <jgross@suse.com> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2020-07-10KVM: MIPS: Fix build errors for 32bit kernelHuacai Chen1-0/+4
Commit dc6d95b153e78ed70b1b2c04a ("KVM: MIPS: Add more MMIO load/store instructions emulation") introduced some 64bit load/store instructions emulation which are unavailable on 32bit platform, and it causes build errors: arch/mips/kvm/emulate.c: In function 'kvm_mips_emulate_store': arch/mips/kvm/emulate.c:1734:6: error: right shift count >= width of type [-Werror] ((vcpu->arch.gprs[rt] >> 56) & 0xff); ^ arch/mips/kvm/emulate.c:1738:6: error: right shift count >= width of type [-Werror] ((vcpu->arch.gprs[rt] >> 48) & 0xffff); ^ arch/mips/kvm/emulate.c:1742:6: error: right shift count >= width of type [-Werror] ((vcpu->arch.gprs[rt] >> 40) & 0xffffff); ^ arch/mips/kvm/emulate.c:1746:6: error: right shift count >= width of type [-Werror] ((vcpu->arch.gprs[rt] >> 32) & 0xffffffff); ^ arch/mips/kvm/emulate.c:1796:6: error: left shift count >= width of type [-Werror] (vcpu->arch.gprs[rt] << 32); ^ arch/mips/kvm/emulate.c:1800:6: error: left shift count >= width of type [-Werror] (vcpu->arch.gprs[rt] << 40); ^ arch/mips/kvm/emulate.c:1804:6: error: left shift count >= width of type [-Werror] (vcpu->arch.gprs[rt] << 48); ^ arch/mips/kvm/emulate.c:1808:6: error: left shift count >= width of type [-Werror] (vcpu->arch.gprs[rt] << 56); ^ cc1: all warnings being treated as errors make[3]: *** [arch/mips/kvm/emulate.o] Error 1 So, use #if defined(CONFIG_64BIT) && defined(CONFIG_KVM_MIPS_VZ) to guard the 64bit load/store instructions emulation. Reported-by: kernel test robot <lkp@intel.com> Fixes: dc6d95b153e78ed70b1b2c04a ("KVM: MIPS: Add more MMIO load/store instructions emulation") Signed-off-by: Huacai Chen <chenhc@lemote.com> Message-Id: <1594365797-536-1-git-send-email-chenhc@lemote.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-07-10KVM: nVMX: fixes for preemption timer migrationPaolo Bonzini3-4/+7
Commit 850448f35aaf ("KVM: nVMX: Fix VMX preemption timer migration", 2020-06-01) accidentally broke nVMX live migration from older version by changing the userspace ABI. Restore it and, while at it, ensure that vmx->nested.has_preemption_timer_deadline is always initialized according to the KVM_STATE_VMX_PREEMPTION_TIMER_DEADLINE flag. Cc: Makarand Sonare <makarandsonare@google.com> Fixes: 850448f35aaf ("KVM: nVMX: Fix VMX preemption timer migration") Reviewed-by: Jim Mattson <jmattson@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-07-09riscv: Avoid kgdb.h including gdb_xml.h to solve unused-const-variable warningVincent Chen2-3/+4
The constant arrays in gdb_xml.h are only used in arch/riscv/kernel/kgdb.c, but other c files may include the gdb_xml.h indirectly via including the kgdb.h. Hence, It will cause many unused-const-variable warnings. This patch makes the kgdb.h not to include the gdb_xml.h to solve this problem. Signed-off-by: Vincent Chen <vincent.chen@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-09kgdb: Move the extern declaration kgdb_has_hit_break() to generic kgdb.hVincent Chen2-1/+1
Currently, only riscv kgdb.c uses the kgdb_has_hit_break() to identify the kgdb breakpoint. It causes other architectures will encounter the "no previous prototype" warnings if the compile option has W=1. Moving the declaration of extern kgdb_has_hit_break() from risc-v kgdb.h to generic kgdb.h to avoid generating these warnings. Signed-off-by: Vincent Chen <vincent.chen@sifive.com> Acked-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-09riscv: Fix "no previous prototype" compile warning in kgdb.c fileVincent Chen1-5/+5
Some functions are only used in the kgdb.c file. Add static properities to these functions to avoid "no previous prototype" compile warnings Signed-off-by: Vincent Chen <vincent.chen@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-09riscv: enable the Kconfig prompt of STRICT_KERNEL_RWXVincent Chen1-0/+2
Due to lack of hardware breakpoint support, the kernel option CONFIG_STRICT_KERNEL_RWX should be disabled when using KGDB. However, CONFIG_STRICT_KERNEL_RWX is always enabled now. Therefore, select ARCH_OPTIONAL_KERNEL_RWX_DEFAULT to enable CONFIG_STRICT_KERNEL_RWX by default, and then select ARCH_OPTIONAL_KERNEL_RWX to enable the Kconfig prompt of CONFIG_STRICT_KERNEL_RWX so that users can turn it off. Signed-off-by: Vincent Chen <vincent.chen@sifive.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-09kgdb: enable arch to support XML packet.Vincent Chen3-0/+29
The XML packet could be supported by required architecture if the architecture defines CONFIG_HAVE_ARCH_KGDB_QXFER_PKT and implement its own kgdb_arch_handle_qxfer_pkt(). Except for the kgdb_arch_handle_qxfer_pkt(), the architecture also needs to record the feature supported by gdb stub into the kgdb_arch_gdb_stub_feature, and these features will be reported to host gdb when gdb stub receives the qSupported packet. Signed-off-by: Vincent Chen <vincent.chen@sifive.com> Acked-by: Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-07-09libbpf: Fix libbpf hashmap on (I)LP32 architecturesJakub Bogusz1-4/+8
On ILP32, 64-bit result was shifted by value calculated for 32-bit long type and returned value was much outside hashmap capacity. As advised by Andrii Nakryiko, this patch uses different hashing variant for architectures with size_t shorter than long long. Fixes: e3b924224028 ("libbpf: add resizable non-thread safe internal hashmap") Signed-off-by: Jakub Bogusz <qboosh@pld-linux.org> Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200709225723.1069937-1-andriin@fb.com
2020-07-09net/mlx5e: CT: Fix memory leak in cleanupEli Britstein1-0/+1
CT entries are deleted via a workqueue from netfilter. If removing the module before that, the rules are cleaned by the driver itself, but the memory entries for them are not freed. Fix that. Fixes: ac991b48d43c ("net/mlx5e: CT: Offload established flows") Signed-off-by: Eli Britstein <elibr@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-09net/mlx5e: Fix port buffers cell size valueEran Ben Elisha6-25/+78
Device unit for port buffers size, xoff_threshold and xon_threshold is cells. Fix a bug in driver where cell unit size was hard-coded to 128 bytes. This hard-coded value is buggy, as it is wrong for some hardware versions. Driver to read cell size from SBCAM register and translate bytes to cell units accordingly. In order to fix the bug, this patch exposes SBCAM (Shared buffer capabilities mask) layout and defines. If SBCAM.cap_cell_size is valid, use it for all bytes to cells calculations. If not valid, fallback to 128. Cell size do not change on the fly per device. Instead of issuing SBCAM access reg command every time such translation is needed, cache it in mlx5e_dcbx as part of mlx5e_dcbnl_initialize(). Pass dcbx.port_buff_cell_sz as a param to every function that needs bytes to cells translation. While fixing the bug, move MLX5E_BUFFER_CELL_SHIFT macro to en_dcbnl.c, as it is only used by that file. Fixes: 0696d60853d5 ("net/mlx5e: Receive buffer configuration") Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com> Reviewed-by: Huy Nguyen <huyn@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-09net/mlx5e: Fix 50G per lane indicationAya Levin3-8/+23
Some released FW versions mistakenly don't set the capability that 50G per lane link-modes are supported for VFs (ptys_extended_ethernet capability bit). When the capability is unset, read PTYS.ext_eth_proto_capability (always reliable). If PTYS.ext_eth_proto_capability is valid (has a non-zero value) conclude that the HCA supports 50G per lane. Otherwise, conclude that the HCA doesn't support 50G per lane. Fixes: a08b4ed1373d ("net/mlx5: Add support to ext_* fields introduced in Port Type and Speed register") Signed-off-by: Aya Levin <ayal@mellanox.com> Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-09net/mlx5e: Fix CPU mapping after function reload to avoid aRFS RX crashAya Levin1-4/+4
After function reload, CPU mapping used by aRFS RX is broken, leading to a kernel panic. Fix by moving initialization of rx_cpu_rmap from netdev_init to netdev_attach. IRQ table is re-allocated on mlx5_load, but netdev is not re-initialize. Trace of the panic: [ 22.055672] general protection fault, probably for non-canonical address 0x785634120000ff1c: 0000 [#1] SMP PTI [ 22.065010] CPU: 4 PID: 0 Comm: swapper/4 Not tainted 5.7.0-rc2-for-upstream-perf-2020-04-21_16-34-03-31 #1 [ 22.067967] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014 [ 22.071174] RIP: 0010:get_rps_cpu+0x267/0x300 [ 22.075692] RSP: 0018:ffffc90000244d60 EFLAGS: 00010202 [ 22.076888] RAX: ffff888459b0e400 RBX: 0000000000000000 RCX:0000000000000007 [ 22.078364] RDX: 0000000000008884 RSI: ffff888467cb5b00 RDI:0000000000000000 [ 22.079815] RBP: 00000000ff342b27 R08: 0000000000000007 R09:0000000000000003 [ 22.081289] R10: ffffffffffffffff R11: 00000000000070cc R12:ffff888454900000 [ 22.082767] R13: ffffc90000e5a950 R14: ffffc90000244dc0 R15:0000000000000007 [ 22.084190] FS: 0000000000000000(0000) GS:ffff88846fc80000(0000)knlGS:0000000000000000 [ 22.086161] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.087427] CR2: ffffffffffffffff CR3: 0000000464426003 CR4:0000000000760ee0 [ 22.088888] DR0: 0000000000000000 DR1: 0000000000000000 DR2:0000000000000000 [ 22.090336] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:0000000000000400 [ 22.091764] PKRU: 55555554 [ 22.092618] Call Trace: [ 22.093442] <IRQ> [ 22.094211] ? kvm_clock_get_cycles+0xd/0x10 [ 22.095272] netif_receive_skb_list_internal+0x258/0x2a0 [ 22.096460] gro_normal_list.part.137+0x19/0x40 [ 22.097547] napi_complete_done+0xc6/0x110 [ 22.098685] mlx5e_napi_poll+0x190/0x670 [mlx5_core] [ 22.099859] net_rx_action+0x2a0/0x400 [ 22.100848] __do_softirq+0xd8/0x2a8 [ 22.101829] irq_exit+0xa5/0xb0 [ 22.102750] do_IRQ+0x52/0xd0 [ 22.103654] common_interrupt+0xf/0xf [ 22.104641] </IRQ> Fixes: 4383cfcc65e7 ("net/mlx5: Add devlink reload") Signed-off-by: Aya Levin <ayal@mellanox.com> Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-09net/mlx5e: Fix VXLAN configuration restore after function reloadAya Levin1-3/+4
When detaching netdev, remove vxlan port configuration using udp_tunnel_drop_rx_info. During function reload, configuration will be restored using udp_tunnel_get_rx_info. This ensures sync between firmware and driver. Use udp_tunnel_get_rx_info even if its physical interface is down. Fixes: 4383cfcc65e7 ("net/mlx5: Add devlink reload") Signed-off-by: Aya Levin <ayal@mellanox.com> Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-09net/mlx5e: Fix usage of rcu-protected pointerVlad Buslov1-3/+6
In mlx5e_configure_flower() flow pointer is protected by rcu read lock. However, after cited commit the pointer is being used outside of rcu read block. Extend the block to protect all pointer accesses. Fixes: 553f9328385d ("net/mlx5e: Support tc block sharing for representors") Signed-off-by: Vlad Buslov <vladbu@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-09net/mxl5e: Verify that rpriv is not NULLVlad Buslov1-2/+3
In helper function is_flow_rule_duplicate_allowed() verify that rpviv pointer is not NULL before dereferencing it. This can happen when device is in NIC mode and leads to following crash: [90444.046419] BUG: kernel NULL pointer dereference, address: 0000000000000000 [90444.048149] #PF: supervisor read access in kernel mode [90444.049781] #PF: error_code(0x0000) - not-present page [90444.051386] PGD 80000003d35a4067 P4D 80000003d35a4067 PUD 3d35a3067 PMD 0 [90444.053051] Oops: 0000 [#1] SMP PTI [90444.054683] CPU: 16 PID: 31736 Comm: tc Not tainted 5.8.0-rc1+ #1157 [90444.056340] Hardware name: Supermicro SYS-2028TP-DECR/X10DRT-P, BIOS 2.0b 03/30/2017 [90444.058079] RIP: 0010:mlx5e_configure_flower+0x3aa/0x9b0 [mlx5_core] [90444.059753] Code: 24 50 49 8b 95 08 02 00 00 48 b8 00 08 00 00 04 00 00 00 48 21 c2 48 39 c2 74 0a 41 f6 85 0d 02 00 00 20 74 16 48 8b 44 24 20 <48> 8b 00 66 83 78 20 ff 74 07 4d 89 aa e0 00 00 00 48 83 7d 28 00 [90444.063232] RSP: 0018:ffffabe9c61ff768 EFLAGS: 00010246 [90444.065014] RAX: 0000000000000000 RBX: ffff9b13c4c91e80 RCX: 00000000000093fa [90444.066784] RDX: 0000000400000800 RSI: 0000000000000000 RDI: 000000000002d5e0 [90444.068533] RBP: ffff9b174d308468 R08: 0000000000000000 R09: ffff9b17d63003f0 [90444.070285] R10: ffff9b17ea288600 R11: 0000000000000000 R12: ffffabe9c61ff878 [90444.072032] R13: ffff9b174d300000 R14: ffffabe9c61ffbb8 R15: ffff9b174d300880 [90444.073760] FS: 00007f3c23775480(0000) GS:ffff9b13efc80000(0000) knlGS:0000000000000000 [90444.075492] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [90444.077266] CR2: 0000000000000000 CR3: 00000003e2a60002 CR4: 00000000001606e0 [90444.079024] Call Trace: [90444.080753] tc_setup_cb_add+0xca/0x1e0 [90444.082415] fl_hw_replace_filter+0x15f/0x1f0 [cls_flower] [90444.084119] fl_change+0xa59/0x13dc [cls_flower] [90444.085772] ? wait_for_completion+0xa8/0xf0 [90444.087364] tc_new_tfilter+0x3f5/0xa60 [90444.088960] rtnetlink_rcv_msg+0xeb/0x360 [90444.090514] ? __d_lookup_done+0x76/0xe0 [90444.092034] ? proc_alloc_inode+0x16/0x70 [90444.093560] ? prep_new_page+0x8c/0xf0 [90444.095048] ? _cond_resched+0x15/0x30 [90444.096483] ? rtnl_calcit.isra.0+0x110/0x110 [90444.097907] netlink_rcv_skb+0x49/0x110 [90444.099289] netlink_unicast+0x191/0x230 [90444.100629] netlink_sendmsg+0x243/0x480 [90444.101984] sock_sendmsg+0x5e/0x60 [90444.103305] ____sys_sendmsg+0x1f3/0x260 [90444.104597] ? copy_msghdr_from_user+0x5c/0x90 [90444.105916] ? __mod_lruvec_state+0x3c/0xe0 [90444.107210] ___sys_sendmsg+0x81/0xc0 [90444.108484] ? do_filp_open+0xa5/0x100 [90444.109732] ? handle_mm_fault+0x117b/0x1e00 [90444.110970] ? __check_object_size+0x46/0x147 [90444.112205] ? __check_object_size+0x136/0x147 [90444.113402] __sys_sendmsg+0x59/0xa0 [90444.114587] do_syscall_64+0x4d/0x90 [90444.115782] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [90444.116953] RIP: 0033:0x7f3c2393b7b8 [90444.118101] Code: Bad RIP value. [90444.119240] RSP: 002b:00007ffc6ad8e6c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [90444.120408] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f3c2393b7b8 [90444.121583] RDX: 0000000000000000 RSI: 00007ffc6ad8e740 RDI: 0000000000000003 [90444.122750] RBP: 000000005eea0c3a R08: 0000000000000001 R09: 00007ffc6ad8e68c [90444.123928] R10: 0000000000404fa8 R11: 0000000000000246 R12: 0000000000000001 [90444.125073] R13: 0000000000000000 R14: 00007ffc6ad92a00 R15: 00000000004866a0 [90444.126221] Modules linked in: act_skbedit act_tunnel_key act_mirred bonding vxlan ip6_udp_tunnel udp_tunnel nfnetlink act_gact cls_flower sch_ingress openvswitch nsh nf_conncount nfsv3 nfs_acl nfs lockd grace fscache tun bridge stp llc sunrpc rdma_ucm rdma_cm iw_cm ib_cm mlx5_ib ib_uverbs ib_core mlx5_core intel_r apl_msr intel_rapl_common sb_edac x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel mlxfw kvm act_ct nf_flow_table nf_nat nf_conntrack irqbypass crct10dif_pclmul nf_defrag_ipv6 igb ipmi_ssif libcrc32c crc32_pclmul crc32c_intel ipmi_si nf_defrag_ipv4 ptp ghash_clmulni_intel mei_me ses iTCO_wdt i2c_i801 pps_core ioatdma iTCO_vendor_support joydev mei enclosure intel_cstate i2c_smbus wmi dca ipmi_devintf intel_uncore lpc_ich ipmi_msghandler pcspkr acpi_pad acpi_power_meter ast i2c_algo_bit drm_vram_helper drm_kms_helper drm_ttm_helper ttm drm mpt3sas raid_class scsi_transport_sas [90444.136253] CR2: 0000000000000000 [90444.137621] ---[ end trace 924af62aa2b151bd ]--- Fixes: 553f9328385d ("net/mlx5e: Support tc block sharing for representors") Reported-by: David Ahern <dsahern@gmail.com> Signed-off-by: Vlad Buslov <vladbu@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-09net/mlx5: E-Switch, Fix vlan or qos setting in legacy modeVu Pham1-1/+0
Refactoring eswitch ingress acl codes accidentally inserts extra memset zero that removes vlan and/or qos setting in legacy mode. Fixes: 07bab9502641 ("net/mlx5: E-Switch, Refactor eswitch ingress acl codes") Signed-off-by: Vu Pham <vuhuong@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-09net/mlx5: Fix eeprom support for SFP moduleEran Ben Elisha1-16/+77
Fix eeprom SFP query support by setting i2c_addr, offset and page number correctly. Unlike QSFP modules, SFP eeprom params are as follow: - i2c_addr is 0x50 for offset 0 - 255 and 0x51 for offset 256 - 511. - Page number is always zero. - Page offset is always relative to zero. As part of eeprom query, query the module ID (SFP / QSFP*) via helper function to set the params accordingly. In addition, change mlx5_qsfp_eeprom_page() input type to be u16 to avoid unnecessary casting. Fixes: a708fb7b1f8d ("net/mlx5e: ethtool, Add support for EEPROM high pages query") Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Huy Nguyen <huyn@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-07-09Restore gcc check in mips asm/unroll.hCesar Eduardo Barros1-1/+2
While raising the gcc version requirement to 4.9, the compile-time check in the unroll macro was accidentally changed from being used on gcc and clang to being used on clang only. Restore the gcc check, changing it from "gcc >= 4.7" to "all gcc". [ We should probably remove this all entirely: if we remove the check for CLANG, then the check for GCC can go away. Older versions of clang are not really appropriate or supported for kernel builds - Linus ] Fixes: 6ec4476ac825 ("Raise gcc version requirement to 4.9") Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.eti.br> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-09kbuild: Move -Wtype-limits to W=2Rikard Falkeborn1-0/+2
-Wtype-limits is included in -Wextra which is added at W=1. It warns (among other things) that 'comparison of an unsigned variable `< 0` is always false. This causes noisy warnings, especially when used in macros, hence it is more suitable for W=2. Link: https://lore.kernel.org/lkml/CAHk-=wiKCXEWKJ9dWUimGbrVRo_N2RosESUw8E7m9AEtyZcu=w@mail.gmail.com/ Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com> Suggested-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-07-09cgroup: Fix sock_cgroup_data on big-endian.Cong Wang1-0/+2
In order for no_refcnt and is_data to be the lowest order two bits in the 'val' we have to pad out the bitfield of the u8. Fixes: ad0f75e5f57c ("cgroup: fix cgroup_sk_alloc() for sk_clone_lock()") Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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