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2020-05-04net: stmmac: gmac5+: fix potential integer overflow on 32 bit multiplyColin Ian King1-1/+1
The multiplication of cfg->ctr[1] by 1000000000 is performed using a 32 bit multiplication (since cfg->ctr[1] is a u32) and this can lead to a potential overflow. Fix this by making the constant a ULL to ensure a 64 bit multiply occurs. Fixes: 504723af0d85 ("net: stmmac: Add basic EST support for GMAC5+") Addresses-Coverity: ("Unintentional integer overflow") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-04cxgb4/chcr: avoid -Wreturn-local-addr warningArnd Bergmann1-37/+46
gcc-10 warns about functions that return a pointer to a stack variable. In chcr_write_cpl_set_tcb_ulp(), this does not actually happen, but it's too hard to see for the compiler: drivers/crypto/chelsio/chcr_ktls.c: In function 'chcr_write_cpl_set_tcb_ulp.constprop': drivers/crypto/chelsio/chcr_ktls.c:760:9: error: function may return address of local variable [-Werror=return-local-addr] 760 | return pos; | ^~~ drivers/crypto/chelsio/chcr_ktls.c:712:5: note: declared here 712 | u8 buf[48] = {0}; | ^~~ Split the middle part of the function out into a helper to make it easier to understand by both humans and compilers, which avoids the warning. Fixes: 5a4b9fe7fece ("cxgb4/chcr: complete record tx handling") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-04s390/qeth: fix cancelling of TX timer on dev_close()Julian Wiedmann1-5/+5
With the introduction of TX coalescing, .ndo_start_xmit now potentially starts the TX completion timer. So only kill the timer _after_ TX has been disabled. Fixes: ee1e52d1e4bb ("s390/qeth: add TX IRQ coalescing support for IQD devices") Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-04net: enetc: fix an issue about leak system resourcesDejin Zheng1-1/+1
the related system resources were not released when enetc_hw_alloc() return error in the enetc_pci_mdio_probe(), add iounmap() for error handling label "err_hw_alloc" to fix it. Fixes: 6517798dd3432a ("enetc: Make MDIO accessors more generic and export to include/linux/fsl") Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-04net/mlx4_core: Fix use of ENOSPC around mlx4_counter_alloc()Tariq Toukan1-1/+3
When ENOSPC is set the idx is still valid and gets set to the global MLX4_SINK_COUNTER_INDEX. However gcc's static analysis cannot tell that ENOSPC is impossible from mlx4_cmd_imm() and gives this warning: drivers/net/ethernet/mellanox/mlx4/main.c:2552:28: warning: 'idx' may be used uninitialized in this function [-Wmaybe-uninitialized] 2552 | priv->def_counter[port] = idx; Also, when ENOSPC is returned mlx4_allocate_default_counters should not fail. Fixes: 6de5f7f6a1fa ("net/mlx4_core: Allocate default counter per port") Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-04stmmac: fix pointer check after utilization in stmmac_interruptMaxim Petrov1-6/+1
The paranoidal pointer check in IRQ handler looks very strange - it really protects us only against bogus drivers which request IRQ line with null pointer dev_id. However, the code fragment is incorrect because the dev pointer is used before the actual check which leads to undefined behavior. Remove the check to avoid confusing people with incorrect code. Signed-off-by: Maxim Petrov <mmrmaximuzz@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-03net: macb: fix an issue about leak related system resourcesDejin Zheng1-9/+3
A call of the function macb_init() can fail in the function fu540_c000_init. The related system resources were not released then. use devm_platform_ioremap_resource() to replace ioremap() to fix it. Fixes: c218ad559020ff9 ("macb: Add support for SiFive FU540-C000") Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Yash Shah <yash.shah@sifive.com> Suggested-by: Nicolas Ferre <nicolas.ferre@microchip.com> Suggested-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-03net: usb: qmi_wwan: add support for DW5816eMatt Jolly1-0/+1
Add support for Dell Wireless 5816e to drivers/net/usb/qmi_wwan.c Signed-off-by: Matt Jolly <Kangie@footclan.ninja> Acked-by: Bjørn Mork <bjorn@mork.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01gtp: set NLM_F_MULTI flag in gtp_genl_dump_pdp()Yoshiyuki Kurauchi1-4/+5
In drivers/net/gtp.c, gtp_genl_dump_pdp() should set NLM_F_MULTI flag since it returns multipart message. This patch adds a new arg "flags" in gtp_genl_fill_info() so that flags can be set by the callers. Signed-off-by: Yoshiyuki Kurauchi <ahochauwaaaaa@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01cxgb4: Add missing annotation for service_ofldq()Jules Irenge1-0/+1
Sparse reports a warning at service_ofldq() warning: context imbalance in service_ofldq() - unexpected unlock The root cause is the missing annotation at service_ofldq() Add the missing __must_hold(&q->sendq.lock) annotation Signed-off-by: Jules Irenge <jbi.octave@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01net: Make PTP-specific drivers depend on PTP_1588_CLOCKClay McClure5-5/+5
Commit d1cbfd771ce8 ("ptp_clock: Allow for it to be optional") changed all PTP-capable Ethernet drivers from `select PTP_1588_CLOCK` to `imply PTP_1588_CLOCK`, "in order to break the hard dependency between the PTP clock subsystem and ethernet drivers capable of being clock providers." As a result it is possible to build PTP-capable Ethernet drivers without the PTP subsystem by deselecting PTP_1588_CLOCK. Drivers are required to handle the missing dependency gracefully. Some PTP-capable Ethernet drivers (e.g., TI_CPSW) factor their PTP code out into separate drivers (e.g., TI_CPTS_MOD). The above commit also changed these PTP-specific drivers to `imply PTP_1588_CLOCK`, making it possible to build them without the PTP subsystem. But as Grygorii Strashko noted in [1]: On Wed, Apr 22, 2020 at 02:16:11PM +0300, Grygorii Strashko wrote: > Another question is that CPTS completely nonfunctional in this case and > it was never expected that somebody will even try to use/run such > configuration (except for random build purposes). In my view, enabling a PTP-specific driver without the PTP subsystem is a configuration error made possible by the above commit. Kconfig should not allow users to create a configuration with missing dependencies that results in "completely nonfunctional" drivers. I audited all network drivers that call ptp_clock_register() but merely `imply PTP_1588_CLOCK` and found five PTP-specific drivers that are likely nonfunctional without PTP_1588_CLOCK: NET_DSA_MV88E6XXX_PTP NET_DSA_SJA1105_PTP MACB_USE_HWSTAMP CAVIUM_PTP TI_CPTS_MOD Note how these symbols all reference PTP or timestamping in their name; this is a clue that they depend on PTP_1588_CLOCK. Change them from `imply PTP_1588_CLOCK` [2] to `depends on PTP_1588_CLOCK`. I'm not using `select PTP_1588_CLOCK` here because PTP_1588_CLOCK has its own dependencies, which `select` would not transitively apply. Additionally, remove the `select NET_PTP_CLASSIFY` from CPTS_TI_MOD; PTP_1588_CLOCK already selects that. [1]: https://lore.kernel.org/lkml/c04458ed-29ee-1797-3a11-7f3f560553e6@ti.com/ [2]: NET_DSA_SJA1105_PTP had never declared any type of dependency on PTP_1588_CLOCK (`imply` or otherwise); adding a `depends on PTP_1588_CLOCK` here seems appropriate. Cc: Arnd Bergmann <arnd@arndb.de> Cc: Richard Cochran <richardcochran@gmail.com> Cc: Nicolas Pitre <nico@fluxnic.net> Cc: Grygorii Strashko <grygorii.strashko@ti.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Fixes: d1cbfd771ce8 ("ptp_clock: Allow for it to be optional") Signed-off-by: Clay McClure <clay@daemons.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01hv_netvsc: Fix netvsc_start_xmit's return typeNathan Chancellor1-1/+2
netvsc_start_xmit is used as a callback function for the ndo_start_xmit function pointer. ndo_start_xmit's return type is netdev_tx_t but netvsc_start_xmit's return type is int. This causes a failure with Control Flow Integrity (CFI), which requires function pointer prototypes and callback function definitions to match exactly. When CFI is in enforcing, the kernel panics. When booting a CFI kernel with WSL 2, the VM is immediately terminated because of this. The splat when CONFIG_CFI_PERMISSIVE is used: [ 5.916765] CFI failure (target: netvsc_start_xmit+0x0/0x10): [ 5.916771] WARNING: CPU: 8 PID: 0 at kernel/cfi.c:29 __cfi_check_fail+0x2e/0x40 [ 5.916772] Modules linked in: [ 5.916774] CPU: 8 PID: 0 Comm: swapper/8 Not tainted 5.7.0-rc3-next-20200424-microsoft-cbl-00001-ged4eb37d2c69-dirty #1 [ 5.916776] RIP: 0010:__cfi_check_fail+0x2e/0x40 [ 5.916777] Code: 48 c7 c7 70 98 63 a9 48 c7 c6 11 db 47 a9 e8 69 55 59 00 85 c0 75 02 5b c3 48 c7 c7 73 c6 43 a9 48 89 de 31 c0 e8 12 2d f0 ff <0f> 0b 5b c3 00 00 cc cc 00 00 cc cc 00 00 cc cc 00 00 85 f6 74 25 [ 5.916778] RSP: 0018:ffffa803c0260b78 EFLAGS: 00010246 [ 5.916779] RAX: 712a1af25779e900 RBX: ffffffffa8cf7950 RCX: ffffffffa962cf08 [ 5.916779] RDX: ffffffffa9c36b60 RSI: 0000000000000082 RDI: ffffffffa9c36b5c [ 5.916780] RBP: ffff8ffc4779c2c0 R08: 0000000000000001 R09: ffffffffa9c3c300 [ 5.916781] R10: 0000000000000151 R11: ffffffffa9c36b60 R12: ffff8ffe39084000 [ 5.916782] R13: ffffffffa8cf7950 R14: ffffffffa8d12cb0 R15: ffff8ffe39320140 [ 5.916784] FS: 0000000000000000(0000) GS:ffff8ffe3bc00000(0000) knlGS:0000000000000000 [ 5.916785] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 5.916786] CR2: 00007ffef5749408 CR3: 00000002f4f5e000 CR4: 0000000000340ea0 [ 5.916787] Call Trace: [ 5.916788] <IRQ> [ 5.916790] __cfi_check+0x3ab58/0x450e0 [ 5.916793] ? dev_hard_start_xmit+0x11f/0x160 [ 5.916795] ? sch_direct_xmit+0xf2/0x230 [ 5.916796] ? __dev_queue_xmit.llvm.11471227737707190958+0x69d/0x8e0 [ 5.916797] ? neigh_resolve_output+0xdf/0x220 [ 5.916799] ? neigh_connected_output.cfi_jt+0x8/0x8 [ 5.916801] ? ip6_finish_output2+0x398/0x4c0 [ 5.916803] ? nf_nat_ipv6_out+0x10/0xa0 [ 5.916804] ? nf_hook_slow+0x84/0x100 [ 5.916807] ? ip6_input_finish+0x8/0x8 [ 5.916807] ? ip6_output+0x6f/0x110 [ 5.916808] ? __ip6_local_out.cfi_jt+0x8/0x8 [ 5.916810] ? mld_sendpack+0x28e/0x330 [ 5.916811] ? ip_rt_bug+0x8/0x8 [ 5.916813] ? mld_ifc_timer_expire+0x2db/0x400 [ 5.916814] ? neigh_proxy_process+0x8/0x8 [ 5.916816] ? call_timer_fn+0x3d/0xd0 [ 5.916817] ? __run_timers+0x2a9/0x300 [ 5.916819] ? rcu_core_si+0x8/0x8 [ 5.916820] ? run_timer_softirq+0x14/0x30 [ 5.916821] ? __do_softirq+0x154/0x262 [ 5.916822] ? native_x2apic_icr_write+0x8/0x8 [ 5.916824] ? irq_exit+0xba/0xc0 [ 5.916825] ? hv_stimer0_vector_handler+0x99/0xe0 [ 5.916826] ? hv_stimer0_callback_vector+0xf/0x20 [ 5.916826] </IRQ> [ 5.916828] ? hv_stimer_global_cleanup.cfi_jt+0x8/0x8 [ 5.916829] ? raw_setsockopt+0x8/0x8 [ 5.916830] ? default_idle+0xe/0x10 [ 5.916832] ? do_idle.llvm.10446269078108580492+0xb7/0x130 [ 5.916833] ? raw_setsockopt+0x8/0x8 [ 5.916833] ? cpu_startup_entry+0x15/0x20 [ 5.916835] ? cpu_hotplug_enable.cfi_jt+0x8/0x8 [ 5.916836] ? start_secondary+0x188/0x190 [ 5.916837] ? secondary_startup_64+0xa5/0xb0 [ 5.916838] ---[ end trace f2683fa869597ba5 ]--- Avoid this by using the right return type for netvsc_start_xmit. Fixes: fceaf24a943d8 ("Staging: hv: add the Hyper-V virtual network driver") Link: https://github.com/ClangBuiltLinux/linux/issues/1009 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01net: phy: DP83TC811: Fix WoL in config init to be disabledDan Murphy1-9/+12
The WoL feature should be disabled when config_init is called and the feature should turned on or off when set_wol is called. In addition updated the calls to modify the registers to use the set_bit and clear_bit function calls. Fixes: 6d749428788b ("net: phy: DP83TC811: Introduce support for the DP83TC811 phy") Signed-off-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01net: phy: DP83822: Fix WoL in config init to be disabledDan Murphy1-16/+14
The WoL feature should be disabled when config_init is called and the feature should turned on or off when set_wol is called. In addition updated the calls to modify the registers to use the set_bit and clear_bit function calls. Fixes: 3b427751a9d0 ("net: phy: DP83822 initial driver submission") Signed-off-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30cxgb4: fix EOTID leak when disabling TC-MQPRIO offloadRahul Lakkireddy1-3/+36
Under heavy load, the EOTID termination FLOWC request fails to get enqueued to the end of the Tx ring due to lack of credits. This results in EOTID leak. When disabling TC-MQPRIO offload, the link is already brought down to cleanup EOTIDs. So, flush any pending enqueued skbs that can't be sent outside the wire, to make room for FLOWC request. Also, move the FLOWC descriptor consumption logic closer to when the FLOWC request is actually posted to hardware. Fixes: 0e395b3cb1fb ("cxgb4: add FLOWC based QoS offload") Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30stmmac: intel: Fix kernel crash due to wrong error pathAndy Shevchenko1-1/+3
Unfortunately sometimes ->probe() may fail. The commit b9663b7ca6ff ("net: stmmac: Enable SERDES power up/down sequence") messed up with error handling and thus: [ 12.811311] ------------[ cut here ]------------ [ 12.811993] kernel BUG at net/core/dev.c:9937! Fix this by properly crafted error path. Fixes: b9663b7ca6ff ("net: stmmac: Enable SERDES power up/down sequence") Cc: Voon Weifeng <weifeng.voon@intel.com> Cc: Ong Boon Leong <boon.leong.ong@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30mlxsw: spectrum_acl_tcam: Position vchunk in a vregion list properlyJiri Pirko1-2/+10
Vregion helpers to get min and max priority depend on the correct ordering of vchunks in the vregion list. However, the current code always adds new chunk to the end of the list, no matter what the priority is. Fix this by finding the correct place in the list and put vchunk there. Fixes: 22a677661f56 ("mlxsw: spectrum: Introduce ACL core with simple TCAM implementation") Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30net: macb: Fix runtime PM refcountingAndy Shevchenko1-3/+9
The commit e6a41c23df0d, while trying to fix an issue, ("net: macb: ensure interface is not suspended on at91rm9200") introduced a refcounting regression, because in error case refcounter must be balanced. Fix it by calling pm_runtime_put_noidle() in error case. While here, fix the same mistake in other couple of places. Fixes: e6a41c23df0d ("net: macb: ensure interface is not suspended on at91rm9200") Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30net: moxa: Fix a potential double 'free_irq()'Christophe JAILLET1-1/+1
Should an irq requested with 'devm_request_irq' be released explicitly, it should be done by 'devm_free_irq()', not 'free_irq()'. Fixes: 6c821bd9edc9 ("net: Add MOXA ART SoCs ethernet driver") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30net: macsec: preserve ingress frame orderingScott Dial1-1/+2
MACsec decryption always occurs in a softirq context. Since the FPU may not be usable in the softirq context, the call to decrypt may be scheduled on the cryptd work queue. The cryptd work queue does not provide ordering guarantees. Therefore, preserving order requires masking out ASYNC implementations of gcm(aes). For instance, an Intel CPU with AES-NI makes available the generic-gcm-aesni driver from the aesni_intel module to implement gcm(aes). However, this implementation requires the FPU, so it is not always available to use from a softirq context, and will fallback to the cryptd work queue, which does not preserve frame ordering. With this change, such a system would select gcm_base(ctr(aes-aesni),ghash-generic). While the aes-aesni implementation prefers to use the FPU, it will fallback to the aes-asm implementation if unavailable. By using a synchronous version of gcm(aes), the decryption will complete before returning from crypto_aead_decrypt(). Therefore, the macsec_decrypt_done() callback will be called before returning from macsec_decrypt(). Thus, the order of calls to macsec_post_decrypt() for the frames is preserved. While it's presumable that the pure AES-NI version of gcm(aes) is more performant, the hybrid solution is capable of gigabit speeds on modest hardware. Regardless, preserving the order of frames is paramount for many network protocols (e.g., triggering TCP retries). Within the MACsec driver itself, the replay protection is tripped by the out-of-order frames, and can cause frames to be dropped. This bug has been present in this code since it was added in v4.6, however it may not have been noticed since not all CPUs have FPU offload available. Additionally, the bug manifests as occasional out-of-order packets that are easily misattributed to other network phenomena. When this code was added in v4.6, the crypto/gcm.c code did not restrict selection of the ghash function based on the ASYNC flag. For instance, x86 CPUs with PCLMULQDQ would select the ghash-clmulni driver instead of ghash-generic, which submits to the cryptd work queue if the FPU is busy. However, this bug was was corrected in v4.8 by commit b30bdfa86431afbafe15284a3ad5ac19b49b88e3, and was backported all the way back to the v3.14 stable branch, so this patch should be applicable back to the v4.6 stable branch. Signed-off-by: Scott Dial <scott@scottdial.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30net: ipa: zero return code before issuing generic EE commandAlex Elder2-0/+9
Zero the result code stored in a field of the scratch 0 register before issuing a generic EE command. This just guarantees that the value we read later was actually written as a result of the command. Also add the definitions of two more possible result codes that can be returned when issuing flow control enable or disable commands: INCORRECT_CHANNEL_STATE: - channel must be in started state INCORRECT_DIRECTION - flow control is only valid for TX channels Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30net: ipa: fix an error message in gsi_channel_init_one()Alex Elder1-2/+2
An error message about limiting the number of TREs used prints the wrong value. Fix this bug. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30net: ipa: fix a bug in ipa_endpoint_stop()Alex Elder1-5/+2
In ipa_endpoint_stop(), for TX endpoints we set the number of retries to 0. When we break out of the loop, retries being 0 means we return EIO rather than the value of ret (which should be 0). Fix this by using a non-zero retry count for both RX and TX channels, and just break out of the loop after calling gsi_channel_stop() for TX channels. This way only RX channels will retry, and the retry count will be non-zero at the end for TX channels (so the proper value gets returned). Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30ionic: add device reset to fw upgrade downShannon Nelson1-0/+1
Doing a device reset addresses an obscure FW timing issue in the FW upgrade process. Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30ionic: refresh devinfo after fw-upgradeShannon Nelson1-0/+1
Make sure we can report the new FW version after a fw-upgrade has finished by re-reading the device's fw version information. Fixes: c672412f6172 ("ionic: remove lifs on fw reset") Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30ionic: no link check until after probeShannon Nelson1-2/+0
Don't bother with the link check during probe, let the watchdog notice the first link-up. This allows probe to finish cleanly without any interruptions from over excited user programs opening the device as soon as it is registered. Fixes: c672412f6172 ("ionic: remove lifs on fw reset") Signed-off-by: Shannon Nelson <snelson@pensando.io> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30dp83640: reverse arguments to list_add_tailJulia Lawall1-1/+1
In this code, it appears that phyter_clocks is a list head, based on the previous list_for_each, and that clock->list is intended to be a list element, given that it has just been initialized in dp83640_clock_init. Accordingly, switch the arguments to list_add_tail, which takes the list head as the second argument. Fixes: cb646e2b02b27 ("ptp: Added a clock driver for the National Semiconductor PHYTER.") Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30ibmvnic: Skip fatal error reset after passive initJuliet Kim1-1/+2
During MTU change, the following events may happen. Client-driven CRQ initialization fails due to partner’s CRQ closed, causing client to enqueue a reset task for FATAL_ERROR. Then passive (server-driven) CRQ initialization succeeds, causing client to release CRQ and enqueue a reset task for failover. If the passive CRQ initialization occurs before the FATAL reset task is processed, the FATAL error reset task would try to access a CRQ message queue that was freed, causing an oops. The problem may be most likely to occur during DLPAR add vNIC with a non-default MTU, because the DLPAR process will automatically issue a change MTU request. Fix this by not processing fatal error reset if CRQ is passively initialized after client-driven CRQ initialization fails. Signed-off-by: Juliet Kim <julietk@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30net/mlx5e: Fix q counters on uplink representorsRoi Dayan1-7/+2
Need to allocate the q counters before init_rx which needs them when creating the rq. Fixes: 8520fa57a4e9 ("net/mlx5e: Create q counters on uplink representors") Signed-off-by: Roi Dayan <roid@mellanox.com> Reviewed-by: Vlad Buslov <vladbu@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-30net/mlx5: Fix command entry leak in Internal Error StateMoshe Shemesh1-0/+4
Processing commands by cmd_work_handler() while already in Internal Error State will result in entry leak, since the handler process force completion without doorbell. Forced completion doesn't release the entry and event completion will never arrive, so entry should be released. Fixes: 73dd3a4839c1 ("net/mlx5: Avoid using pending command interface slots") Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-30net/mlx5: Fix forced completion access non initialized command entryMoshe Shemesh1-1/+1
mlx5_cmd_flush() will trigger forced completions to all valid command entries. Triggered by an asynch event such as fast teardown it can happen at any stage of the command, including command initialization. It will trigger forced completion and that can lead to completion on an uninitialized command entry. Setting MLX5_CMD_ENT_STATE_PENDING_COMP only after command entry is initialized will ensure force completion is treated only if command entry is initialized. Fixes: 73dd3a4839c1 ("net/mlx5: Avoid using pending command interface slots") Signed-off-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-30net/mlx5: DR, On creation set CQ's arm_db member to right valueErez Shitrit1-1/+13
In polling mode, set arm_db member to a value that will avoid CQ event recovery by the HW. Otherwise we might get event without completion function. In addition,empty completion function to was added to protect from unexpected events. Fixes: 297cccebdc5a ("net/mlx5: DR, Expose an internal API to issue RDMA operations") Signed-off-by: Erez Shitrit <erezsh@mellanox.com> Reviewed-by: Tariq Toukan <tariqt@mellanox.com> Reviewed-by: Alex Vesker <valex@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-30net/mlx5: E-switch, Fix mutex init orderParav Pandit1-6/+6
In cited patch mutex is initialized after its used. Below call trace is observed. Fix the order to initialize the mutex early enough. Similarly follow mirror sequence during cleanup. kernel: DEBUG_LOCKS_WARN_ON(lock->magic != lock) kernel: WARNING: CPU: 5 PID: 45916 at kernel/locking/mutex.c:938 __mutex_lock+0x7d6/0x8a0 kernel: Call Trace: kernel: ? esw_vport_tbl_get+0x3b/0x250 [mlx5_core] kernel: ? mark_held_locks+0x55/0x70 kernel: ? __slab_free+0x274/0x400 kernel: ? lockdep_hardirqs_on+0x140/0x1d0 kernel: esw_vport_tbl_get+0x3b/0x250 [mlx5_core] kernel: ? mlx5_esw_chains_create_fdb_prio+0xa57/0xc20 [mlx5_core] kernel: mlx5_esw_vport_tbl_get+0x88/0xf0 [mlx5_core] kernel: mlx5_esw_chains_create+0x2f3/0x3e0 [mlx5_core] kernel: esw_create_offloads_fdb_tables+0x11d/0x580 [mlx5_core] kernel: esw_offloads_enable+0x26d/0x540 [mlx5_core] kernel: mlx5_eswitch_enable_locked+0x155/0x860 [mlx5_core] kernel: mlx5_devlink_eswitch_mode_set+0x1af/0x320 [mlx5_core] kernel: devlink_nl_cmd_eswitch_set_doit+0x41/0xb0 Fixes: 96e326878fa5 ("net/mlx5e: Eswitch, Use per vport tables for mirroring") Signed-off-by: Parav Pandit <parav@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Reviewed-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-30net/mlx5: E-switch, Fix printing wrong error valueParav Pandit1-1/+1
When mlx5_modify_header_alloc() fails, instead of printing the error value returned, current error log prints 0. Fix by printing correct error value returned by mlx5_modify_header_alloc(). Fixes: 6724e66b90ee ("net/mlx5: E-Switch, Get reg_c1 value on miss") Signed-off-by: Parav Pandit <parav@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-30net/mlx5: E-switch, Fix error unwinding flow for steering init failureParav Pandit1-2/+2
Error unwinding is done incorrectly in the cited commit. When steering init fails, there is no need to perform steering cleanup. When vport error exists, error cleanup should be mirror of the setup routine, i.e. to perform steering cleanup before metadata cleanup. This avoids the call trace in accessing uninitialized objects which are skipped during steering_init() due to failure in steering_init(). Call trace: mlx5_cmd_modify_header_alloc:805:(pid 21128): too many modify header actions 1, max supported 0 E-Switch: Failed to create restore mod header BUG: kernel NULL pointer dereference, address: 00000000000000d0 [ 677.263079] mlx5_destroy_flow_group+0x13/0x80 [mlx5_core] [ 677.268921] esw_offloads_steering_cleanup+0x51/0xf0 [mlx5_core] [ 677.275281] esw_offloads_enable+0x1a5/0x800 [mlx5_core] [ 677.280949] mlx5_eswitch_enable_locked+0x155/0x860 [mlx5_core] [ 677.287227] mlx5_devlink_eswitch_mode_set+0x1af/0x320 [ 677.293741] devlink_nl_cmd_eswitch_set_doit+0x41/0xb0 [ 677.299217] genl_rcv_msg+0x1eb/0x430 Fixes: 7983a675ba65 ("net/mlx5: E-Switch, Enable chains only if regs loopback is enabled") Signed-off-by: Parav Pandit <parav@mellanox.com> Reviewed-by: Roi Dayan <roid@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-29wireguard: receive: use tunnel helpers for decapsulating ECN markingsToke Høiland-Jørgensen1-4/+2
WireGuard currently only propagates ECN markings on tunnel decap according to the old RFC3168 specification. However, the spec has since been updated in RFC6040 to recommend slightly different decapsulation semantics. This was implemented in the kernel as a set of common helpers for ECN decapsulation, so let's just switch over WireGuard to using those, so it can benefit from this enhancement and any future tweaks. We do not drop packets with invalid ECN marking combinations, because WireGuard is frequently used to work around broken ISPs, which could be doing that. Fixes: e7096c131e51 ("net: WireGuard secure network tunnel") Reported-by: Olivier Tilmans <olivier.tilmans@nokia-bell-labs.com> Cc: Dave Taht <dave.taht@gmail.com> Cc: Rodney W. Grimes <ietf@gndrsh.dnsmgr.net> Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29wireguard: queueing: cleanup ptr_ring in error path of packet_queue_initJason A. Donenfeld1-1/+3
Prior, if the alloc_percpu of packet_percpu_multicore_worker_alloc failed, the previously allocated ptr_ring wouldn't be freed. This commit adds the missing call to ptr_ring_cleanup in the error case. Reported-by: Sultan Alsawaf <sultan@kerneltoast.com> Fixes: e7096c131e51 ("net: WireGuard secure network tunnel") Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29wireguard: send: remove errant newline from packet_encrypt_workerSultan Alsawaf1-1/+0
This commit removes a useless newline at the end of a scope, which doesn't add anything in the way of organization or readability. Signed-off-by: Sultan Alsawaf <sultan@kerneltoast.com> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29net: dsa: mv88e6xxx: remove duplicate assignment of struct membersJason Yan1-4/+0
These struct members named 'phylink_validate' was assigned twice: static const struct mv88e6xxx_ops mv88e6190_ops = { ...... .phylink_validate = mv88e6390_phylink_validate, ...... .phylink_validate = mv88e6390_phylink_validate, }; static const struct mv88e6xxx_ops mv88e6190x_ops = { ...... .phylink_validate = mv88e6390_phylink_validate, ...... .phylink_validate = mv88e6390x_phylink_validate, }; static const struct mv88e6xxx_ops mv88e6191_ops = { ...... .phylink_validate = mv88e6390_phylink_validate, ...... .phylink_validate = mv88e6390_phylink_validate, }; static const struct mv88e6xxx_ops mv88e6290_ops = { ...... .phylink_validate = mv88e6390_phylink_validate, ...... .phylink_validate = mv88e6390_phylink_validate, }; Remove all the first one and leave the second one which are been used in fact. Be aware that for 'mv88e6190x_ops' the assignment functions is different while the others are all the same. This fixes the following coccicheck warning: drivers/net/dsa/mv88e6xxx/chip.c:3911:48-49: phylink_validate: first occurrence line 3965, second occurrence line 3967 drivers/net/dsa/mv88e6xxx/chip.c:3970:49-50: phylink_validate: first occurrence line 4024, second occurrence line 4026 drivers/net/dsa/mv88e6xxx/chip.c:4029:48-49: phylink_validate: first occurrence line 4082, second occurrence line 4085 drivers/net/dsa/mv88e6xxx/chip.c:4184:48-49: phylink_validate: first occurrence line 4238, second occurrence line 4242 Fixes: 4262c38dc42e ("net: dsa: mv88e6xxx: Add SERDES stats counters to all 6390 family members") Signed-off-by: Jason Yan <yanaijie@huawei.com> Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-28net/ena: Fix build warning in ena_xdp_set()Gavin Shan1-1/+1
This fixes the following build warning in ena_xdp_set(), which is observed on aarch64 with 64KB page size. In file included from ./include/net/inet_sock.h:19, from ./include/net/ip.h:27, from drivers/net/ethernet/amazon/ena/ena_netdev.c:46: drivers/net/ethernet/amazon/ena/ena_netdev.c: In function \ ‘ena_xdp_set’: \ drivers/net/ethernet/amazon/ena/ena_netdev.c:557:6: warning: \ format ‘%lu’ \ expects argument of type ‘long unsigned int’, but argument 4 \ has type ‘int’ \ [-Wformat=] "Failed to set xdp program, the current MTU (%d) is \ larger than the maximum allowed MTU (%lu) while xdp is on", Signed-off-by: Gavin Shan <gshan@redhat.com> Acked-by: Shay Agroskin <shayagr@amazon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-27net/sonic: Fix a resource leak in an error handling path in 'jazz_sonic_probe()'Christophe JAILLET1-2/+4
A call to 'dma_alloc_coherent()' is hidden in 'sonic_alloc_descriptors()', called from 'sonic_probe1()'. This is correctly freed in the remove function, but not in the error handling path of the probe function. Fix it and add the missing 'dma_free_coherent()' call. While at it, rename a label in order to be slightly more informative. Fixes: efcce839360f ("[PATCH] macsonic/jazzsonic network drivers update") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-27net: tc35815: Fix phydev supported/advertising maskAnthony Felice1-1/+1
Commit 3c1bcc8614db ("net: ethernet: Convert phydev advertize and supported from u32 to link mode") updated ethernet drivers to use a linkmode bitmap. It mistakenly dropped a bitwise negation in the tc35815 ethernet driver on a bitmask to set the supported/advertising flags. Found by Anthony via code inspection, not tested as I do not have the required hardware. Fixes: 3c1bcc8614db ("net: ethernet: Convert phydev advertize and supported from u32 to link mode") Signed-off-by: Anthony Felice <tony.felice@timesys.com> Reviewed-by: Akshay Bhat <akshay.bhat@timesys.com> Reviewed-by: Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-27bnxt_en: Fix VLAN acceleration handling in bnxt_fix_features().Michael Chan1-3/+6
The current logic in bnxt_fix_features() will inadvertently turn on both CTAG and STAG VLAN offload if the user tries to disable both. Fix it by checking that the user is trying to enable CTAG or STAG before enabling both. The logic is supposed to enable or disable both CTAG and STAG together. Fixes: 5a9f6b238e59 ("bnxt_en: Enable and disable RX CTAG and RX STAG VLAN acceleration together.") Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-27bnxt_en: Return error when allocating zero size context memory.Michael Chan1-1/+1
bnxt_alloc_ctx_pg_tbls() should return error when the memory size of the context memory to set up is zero. By returning success (0), the caller may proceed normally and may crash later when it tries to set up the memory. Fixes: 08fe9d181606 ("bnxt_en: Add Level 2 context memory paging support.") Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-27bnxt_en: Improve AER slot reset.Michael Chan1-3/+6
Improve the slot reset sequence by disabling the device to prevent bad DMAs if slot reset fails. Return the proper result instead of always PCI_ERS_RESULT_RECOVERED to the caller. Fixes: 6316ea6db93d ("bnxt_en: Enable AER support.") Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-27bnxt_en: Reduce BNXT_MSIX_VEC_MAX value to supported CQs per PF.Vasundhara Volam1-1/+1
Broadcom adapters support only maximum of 512 CQs per PF. If user sets MSIx vectors more than supported CQs, firmware is setting incorrect value for msix_vec_per_pf_max parameter. Fix it by reducing the BNXT_MSIX_VEC_MAX value to 512, even though the maximum # of MSIx vectors supported by adapter are 1280. Fixes: f399e8497826 ("bnxt_en: Use msix_vec_per_pf_max and msix_vec_per_pf_min devlink params.") Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-27bnxt_en: Fix VF anti-spoof filter setup.Michael Chan2-9/+2
Fix the logic that sets the enable/disable flag for the source MAC filter according to firmware spec 1.7.1. In the original firmware spec. before 1.7.1, the VF spoof check flags were not latched after making the HWRM_FUNC_CFG call, so there was a need to keep the func_flags so that subsequent calls would perserve the VF spoof check setting. A change was made in the 1.7.1 spec so that the flags became latched. So we now set or clear the anti- spoof setting directly without retrieving the old settings in the stored vf->func_flags which are no longer valid. We also remove the unneeded vf->func_flags. Fixes: 8eb992e876a8 ("bnxt_en: Update firmware interface spec to 1.7.6.2.") Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-27net: phy: marvell10g: fix temperature sensor on 2110Baruch Siach1-1/+26
Read the temperature sensor register from the correct location for the 88E2110 PHY. There is no enable/disable bit on 2110, so make mv3310_hwmon_config() run on 88X3310 only. Fixes: 62d01535474b61 ("net: phy: marvell10g: add support for the 88x2110 PHY") Cc: Maxime Chevallier <maxime.chevallier@bootlin.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Baruch Siach <baruch@tkos.co.il> Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-27aquantia: Fix the media type of AQC100 ethernet controller in the driverRichard Clark1-1/+1
The Aquantia AQC100 controller enables a SFP+ port, so the driver should configure the media type as '_TYPE_FIBRE' instead of '_TYPE_TP'. Signed-off-by: Richard Clark <richard.xnu.clark@gmail.com> Cc: Igor Russkikh <irusskikh@marvell.com> Cc: "David S. Miller" <davem@davemloft.net> Acked-by: Igor Russkikh <irusskikh@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-27vsock/virtio: fix multiple packet delivery to monitoring devicesStefano Garzarella1-0/+6
In virtio_transport.c, if the virtqueue is full, the transmitting packet is queued up and it will be sent in the next iteration. This causes the same packet to be delivered multiple times to monitoring devices. We want to continue to deliver packets to monitoring devices before it is put in the virtqueue, to avoid that replies can appear in the packet capture before the transmitted packet. This patch fixes the issue, adding a new flag (tap_delivered) in struct virtio_vsock_pkt, to check if the packet is already delivered to monitoring devices. In vhost/vsock.c, we are splitting packets, so we must set 'tap_delivered' to false when we queue up the same virtio_vsock_pkt to handle the remaining bytes. Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>