- 19 Sep, 2018 20 commits
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Wei Wang authored
When dst->_metrics and f6i->fib6_metrics share the same memory, both take reference count on the dst_metrics structure. However, when dst is destroyed, ip6_dst_destroy() only invokes dst_destroy_metrics_generic() which does not take care of READONLY metrics and does not release refcnt. This causes memory leak. Similar to ipv4 logic, the fix is to properly release refcnt and free the memory space pointed by dst->_metrics if refcnt becomes 0. Fixes: 93531c67 ("net/ipv6: separate handling of FIB entries from dst based routes") Reported-by:
Sabrina Dubroca <sd@queasysnail.net> Signed-off-by:
Wei Wang <weiwan@google.com> Signed-off-by:
Eric Dumazet <edumazet@google.com> Reviewed-by:
David Ahern <dsahern@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Wei Wang authored
This reverts commit e70a3aad. This change causes use-after-free on dst->_metrics. The crash trace looks like this: [ 97.763269] BUG: KASAN: use-after-free in ip6_mtu+0x116/0x140 [ 97.769038] Read of size 4 at addr ffff881781d2cf84 by task svw_NetThreadEv/8801 [ 97.777954] CPU: 76 PID: 8801 Comm: svw_NetThreadEv Not tainted 4.15.0-smp-DEV #11 [ 97.777956] Hardware name: Default string Default string/Indus_QC_02, BIOS 5.46.4 03/29/2018 [ 97.777957] Call Trace: [ 97.777971] [<ffffffff895709db>] dump_stack+0x4d/0x72 [ 97.777985] [<ffffffff881651df>] print_address_description+0x6f/0x260 [ 97.777997] [<ffffffff88165747>] kasan_report+0x257/0x370 [ 97.778001] [<ffffffff894488e6>] ? ip6_mtu+0x116/0x140 [ 97.778004] [<ffffffff881658b9>] __asan_report_load4_noabort+0x19/0x20 [ 97.778008] [<ffffffff894488e6>] ip6_mtu+0x116/0x140 [ 97.778013] [<ffffffff892bb91e>] tcp_current_mss+0x12e/0x280 [ 97.778016] [<ffffffff892bb7f0>] ? tcp_mtu_to_mss+0x2d0/0x2d0 [ 97.778022] [<ffffffff887b45b8>] ? depot_save_stack+0x138/0x4a0 [ 97.778037] [<ffffffff87c38985>] ? __mmdrop+0x145/0x1f0 [ 97.778040] [<ffffffff881643b1>] ? save_stack+0xb1/0xd0 [ 97.778046] [<ffffffff89264c82>] tcp_send_mss+0x22/0x220 [ 97.778059] [<ffffffff89273a49>] tcp_sendmsg_locked+0x4f9/0x39f0 [ 97.778062] [<ffffffff881642b4>] ? kasan_check_write+0x14/0x20 [ 97.778066] [<ffffffff89273550>] ? tcp_sendpage+0x60/0x60 [ 97.778070] [<ffffffff881cb359>] ? rw_copy_check_uvector+0x69/0x280 [ 97.778075] [<ffffffff8873c65f>] ? import_iovec+0x9f/0x430 [ 97.778078] [<ffffffff88164be7>] ? kasan_slab_free+0x87/0xc0 [ 97.778082] [<ffffffff8873c5c0>] ? memzero_page+0x140/0x140 [ 97.778085] [<ffffffff881642b4>] ? kasan_check_write+0x14/0x20 [ 97.778088] [<ffffffff89276f6c>] tcp_sendmsg+0x2c/0x50 [ 97.778092] [<ffffffff89276f6c>] ? tcp_sendmsg+0x2c/0x50 [ 97.778098] [<ffffffff89352d43>] inet_sendmsg+0x103/0x480 [ 97.778102] [<ffffffff89352c40>] ? inet_gso_segment+0x15b0/0x15b0 [ 97.778105] [<ffffffff890294da>] sock_sendmsg+0xba/0xf0 [ 97.778108] [<ffffffff8902ab6a>] ___sys_sendmsg+0x6ca/0x8e0 [ 97.778113] [<ffffffff87dccac1>] ? hrtimer_try_to_cancel+0x71/0x3b0 [ 97.778116] [<ffffffff8902a4a0>] ? copy_msghdr_from_user+0x3d0/0x3d0 [ 97.778119] [<ffffffff881646d1>] ? memset+0x31/0x40 [ 97.778123] [<ffffffff87a0cff5>] ? schedule_hrtimeout_range_clock+0x165/0x380 [ 97.778127] [<ffffffff87a0ce90>] ? hrtimer_nanosleep_restart+0x250/0x250 [ 97.778130] [<ffffffff87dcc700>] ? __hrtimer_init+0x180/0x180 [ 97.778133] [<ffffffff87dd1f82>] ? ktime_get_ts64+0x172/0x200 [ 97.778137] [<ffffffff8822b8ec>] ? __fget_light+0x8c/0x2f0 [ 97.778141] [<ffffffff8902d5c6>] __sys_sendmsg+0xe6/0x190 [ 97.778144] [<ffffffff8902d5c6>] ? __sys_sendmsg+0xe6/0x190 [ 97.778147] [<ffffffff8902d4e0>] ? SyS_shutdown+0x20/0x20 [ 97.778152] [<ffffffff87cd4370>] ? wake_up_q+0xe0/0xe0 [ 97.778155] [<ffffffff8902d670>] ? __sys_sendmsg+0x190/0x190 [ 97.778158] [<ffffffff8902d683>] SyS_sendmsg+0x13/0x20 [ 97.778162] [<ffffffff87a1600c>] do_syscall_64+0x2ac/0x430 [ 97.778166] [<ffffffff87c17515>] ? do_page_fault+0x35/0x3d0 [ 97.778171] [<ffffffff8960131f>] ? page_fault+0x2f/0x50 [ 97.778174] [<ffffffff89600071>] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 97.778177] RIP: 0033:0x7f83fa36000d [ 97.778178] RSP: 002b:00007f83ef9229e0 EFLAGS: 00000293 ORIG_RAX: 000000000000002e [ 97.778180] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f83fa36000d [ 97.778182] RDX: 0000000000004000 RSI: 00007f83ef922f00 RDI: 0000000000000036 [ 97.778183] RBP: 00007f83ef923040 R08: 00007f83ef9231f8 R09: 00007f83ef923168 [ 97.778184] R10: 0000000000000000 R11: 0000000000000293 R12: 00007f83f69c5b40 [ 97.778185] R13: 000000000000001c R14: 0000000000000001 R15: 0000000000004000 [ 97.779684] Allocated by task 5919: [ 97.783185] save_stack+0x46/0xd0 [ 97.783187] kasan_kmalloc+0xad/0xe0 [ 97.783189] kmem_cache_alloc_trace+0xdf/0x580 [ 97.783190] ip6_convert_metrics.isra.79+0x7e/0x190 [ 97.783192] ip6_route_info_create+0x60a/0x2480 [ 97.783193] ip6_route_add+0x1d/0x80 [ 97.783195] inet6_rtm_newroute+0xdd/0xf0 [ 97.783198] rtnetlink_rcv_msg+0x641/0xb10 [ 97.783200] netlink_rcv_skb+0x27b/0x3e0 [ 97.783202] rtnetlink_rcv+0x15/0x20 [ 97.783203] netlink_unicast+0x4be/0x720 [ 97.783204] netlink_sendmsg+0x7bc/0xbf0 [ 97.783205] sock_sendmsg+0xba/0xf0 [ 97.783207] ___sys_sendmsg+0x6ca/0x8e0 [ 97.783208] __sys_sendmsg+0xe6/0x190 [ 97.783209] SyS_sendmsg+0x13/0x20 [ 97.783211] do_syscall_64+0x2ac/0x430 [ 97.783213] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 97.784709] Freed by task 0: [ 97.785056] knetbase: Error: /proc/sys/net/core/txcs_enable does not exist [ 97.794497] save_stack+0x46/0xd0 [ 97.794499] kasan_slab_free+0x71/0xc0 [ 97.794500] kfree+0x7c/0xf0 [ 97.794501] fib6_info_destroy_rcu+0x24f/0x310 [ 97.794504] rcu_process_callbacks+0x38b/0x1730 [ 97.794506] __do_softirq+0x1c8/0x5d0 Reported-by:
John Sperbeck <jsperbeck@google.com> Signed-off-by:
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Russell King authored
If a network interface is created prior to the SFP socket being available, ethtool can request module information. This unfortunately leads to an oops: Unable to handle kernel NULL pointer dereference at virtual address 00000008 pgd = (ptrval) [00000008] *pgd=7c400831, *pte=00000000, *ppte=00000000 Internal error: Oops: 17 [#1] SMP ARM Modules linked in: CPU: 0 PID: 1480 Comm: ethtool Not tainted 4.19.0-rc3 #138 Hardware name: Broadcom Northstar Plus SoC PC is at sfp_get_module_info+0x8/0x10 LR is at dev_ethtool+0x218c/0x2afc Fix this by not filling in the network device's SFP bus pointer until SFP is fully bound, thereby avoiding the core calling into the SFP bus code. Fixes: ce0aa27f ("sfp: add sfp-bus to bridge between network devices and sfp cages") Reported-by:
Florian Fainelli <f.fainelli@gmail.com> Tested-by:
Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by:
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Antoine Tenart authored
When no Tx IRQ is available, the txq_done() routine (called from tx_done()) shouldn't be called from the polling function, as in such case it is already called in the Tx path thanks to an hrtimer. This mostly occurred when using PPv2.1, as the engine then do not have Tx IRQs. Fixes: edc660fa ("net: mvpp2: replace TX coalescing interrupts with hrtimer") Reported-by:
Stefan Chulski <stefanc@marvell.com> Signed-off-by:
Antoine Tenart <antoine.tenart@bootlin.com> Signed-off-by:
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David S. Miller authored
Ursula Braun says: ==================== net/smc: fixes 2018-09-18 here are some fixes in different areas of the smc code for the net tree. ==================== Signed-off-by: -
YueHaibing authored
Comparing an int to a size, which is unsigned, causes the int to become unsigned, giving the wrong result. kernel_sendmsg can return a negative error code. Signed-off-by:
YueHaibing <yuehaibing@huawei.com> Signed-off-by:
Ursula Braun <ubraun@linux.ibm.com> Signed-off-by:
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Karsten Graul authored
Don't check a listen socket for pending urgent data in smc_poll(). Signed-off-by:
Karsten Graul <kgraul@linux.ibm.com> Signed-off-by:
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Ursula Braun authored
If a linkgroup is terminated abnormally already due to failing LLC CONFIRM LINK or LLC ADD LINK, fallback to TCP is still possible. In this case do not switch to state SMC_PEERABORTWAIT and do not set sk_err. Signed-off-by:
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Ursula Braun authored
For a failing smc_listen_rdma_finish() smc_listen_decline() is called. If fallback is possible, the new socket is already enqueued to be accepted in smc_listen_decline(). Avoid enqueuing a second time afterwards in this case, otherwise the smc_create_lgr_pending lock is released twice: [ 373.463976] WARNING: bad unlock balance detected! [ 373.463978] 4.18.0-rc7+ #123 Tainted: G O [ 373.463979] ------------------------------------- [ 373.463980] kworker/1:1/30 is trying to release lock (smc_create_lgr_pending) at: [ 373.463990] [<000003ff801205fc>] smc_listen_work+0x22c/0x5d0 [smc] [ 373.463991] but there are no more locks to release! [ 373.463991] other info that might help us debug this: [ 373.463993] 2 locks held by kworker/1:1/30: [ 373.463994] #0: 00000000772cbaed ((wq_completion)"events"){+.+.}, at: process_one_work+0x1ec/0x6b0 [ 373.464000] #1: 000000003ad0894a ((work_completion)(&new_smc->smc_listen_work)){+.+.}, at: process_one_work+0x1ec/0x6b0 [ 373.464003] stack backtrace: [ 373.464005] CPU: 1 PID: 30 Comm: kworker/1:1 Kdump: loaded Tainted: G O 4.18.0-rc7uschi+ #123 [ 373.464007] Hardware name: IBM 2827 H43 738 (LPAR) [ 373.464010] Workqueue: events smc_listen_work [smc] [ 373.464011] Call Trace: [ 373.464015] ([<0000000000114100>] show_stack+0x60/0xd8) [ 373.464019] [<0000000000a8c9bc>] dump_stack+0x9c/0xd8 [ 373.464021] [<00000000001dcaf8>] print_unlock_imbalance_bug+0xf8/0x108 [ 373.464022] [<00000000001e045c>] lock_release+0x114/0x4f8 [ 373.464025] [<0000000000aa87fa>] __mutex_unlock_slowpath+0x4a/0x300 [ 373.464027] [<000003ff801205fc>] smc_listen_work+0x22c/0x5d0 [smc] [ 373.464029] [<0000000000197a68>] process_one_work+0x2a8/0x6b0 [ 373.464030] [<0000000000197ec2>] worker_thread+0x52/0x410 [ 373.464033] [<000000000019fd0e>] kthread+0x15e/0x178 [ 373.464035] [<0000000000aaf58a>] kernel_thread_starter+0x6/0xc [ 373.464052] [<0000000000aaf584>] kernel_thread_starter+0x0/0xc [ 373.464054] INFO: lockdep is turned off. Signed-off-by: -
Ursula Braun authored
In state SMC_INIT smc_poll() delegates polling to the internal CLC socket. This means, once the connect worker has finished its kernel_connect() step, the poll wake-up may occur. This is not intended. The wake-up should occur from the wake up call in smc_connect_work() after __smc_connect() has finished. Thus in state SMC_INIT this patch now calls sock_poll_wait() on the main SMC socket. Signed-off-by:
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Kazuya Mizuguchi authored
EtherAVB hardware requires 0 to be written to status register bits in order to clear them, however, care must be taken not to: 1. Clear other bits, by writing zero to them 2. Write one to reserved bits This patch corrects the ravb driver with respect to the second point above. This is done by defining reserved bit masks for the affected registers and, after auditing the code, ensure all sites that may write a one to a reserved bit use are suitably masked. Signed-off-by:
Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com> Signed-off-by:
Simon Horman <horms+renesas@verge.net.au> Reviewed-by:
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by:
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zhong jiang authored
Fix the following compile warning: drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c:49:5: warning: nvm_param.dir_type may be used uninitialized in this function [-Wmaybe-uninitialized] if (nvm_param.dir_type == BNXT_NVM_PORT_CFG) Signed-off-by:
zhong jiang <zhongjiang@huawei.com> Acked-by:
Michael Chan <michael.chan@broadcom.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linuxDavid S. Miller authored
Saeed Mahameed says: ==================== Mellanox, mlx5 fixes 2018-09-17 Sorry about the previous submission of this series which was mistakenly marked for net-next, here I am resending with 'net' mark. This series provides three fixes to mlx5 core and mlx5e netdevice driver. Please pull and let me know if there's any problem. For -stable v4.16: ('net/mlx5: Check for SQ and not RQ state when modifying hairpin SQ') ==================== Signed-off-by: -
Christian Lamparter authored
On the Netgear WNDAP620, the emac ethernet isn't receiving nor xmitting any frames from/to the RTL8363SB (identifies itself as a RTL8367RB). This is caused by the emac hardware not knowing the forced link parameters for speed, duplex, pause, etc. This begs the question, how this was working on the original driver code, when it was necessary to set the phy_address and phy_map to 0xffffffff. But I guess without access to the old PPC405/440/460 hardware, it's not possible to know. Signed-off-by:
Christian Lamparter <chunkeey@gmail.com> Signed-off-by:
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Suren Baghdasaryan authored
According to ETSI TS 102 622 specification chapter 4.4 pipe identifier is 7 bits long which allows for 128 unique pipe IDs. Because NFC_HCI_MAX_PIPES is used as the number of pipes supported and not as the max pipe ID, its value should be 128 instead of 127. nfc_hci_recv_from_llc extracts pipe ID from packet header using NFC_HCI_FRAGMENT(0x7F) mask which allows for pipe ID value of 127. Same happens when NCI_HCP_MSG_GET_PIPE() is being used. With pipes array having only 127 elements and pipe ID of 127 the OOB memory access will result. Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Allen Pais <allen.pais@oracle.com> Cc: "David S. Miller" <davem@davemloft.net> Suggested-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Suren Baghdasaryan <surenb@google.com> Reviewed-by:
Kees Cook <keescook@chromium.org> Cc: stable <stable@vger.kernel.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
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Suren Baghdasaryan authored
When handling SHDLC I-Frame commands "pipe" field used for indexing into an array should be checked before usage. If left unchecked it might access memory outside of the array of size NFC_HCI_MAX_PIPES(127). Malformed NFC HCI frames could be injected by a malicious NFC device communicating with the device being attacked (remote attack vector), or even by an attacker with physical access to the I2C bus such that they could influence the data transfers on that bus (local attack vector). skb->data is controlled by the attacker and has only been sanitized in the most trivial ways (CRC check), therefore we can consider the create_info struct and all of its members to tainted. 'create_info->pipe' with max value of 255 (uint8) is used to take an offset of the hdev->pipes array of 127 elements which can lead to OOB write. Cc: Samuel Ortiz <sameo@linux.intel.com> Cc: Allen Pais <allen.pais@oracle.com> Cc: "David S. Miller" <davem@davemloft.net> Suggested-by:
Kevin Deus <kdeus@google.com> Signed-off-by:
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Sabrina Dubroca authored
The cleanup function uses "$CMD 2 > /dev/null", which doesn't actually send stderr to /dev/null, so when the netns doesn't exist, the error message is shown. Use "2> /dev/null" instead, so that those messages disappear, as was intended. Fixes: d1f1b9cb ("selftests: net: Introduce first PMTU test") Signed-off-by:
Stefano Brivio <sbrivio@redhat.com> Signed-off-by:
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David S. Miller authored
Jose Abreu says: ==================== net: stmmac: Coalesce and tail addr fixes The fix for coalesce timer and a fix in tail address setting that impacts XGMAC2 operation. The series is: Tested-by:
Jerome Brunet <jbrunet@baylibre.com> on a113 s400 board (single queue) ==================== Signed-off-by:
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Jose Abreu authored
Currently we are always setting the tail address of descriptor list to the end of the pre-allocated list. According to databook this is not correct. Tail address should point to the last available descriptor + 1, which means we have to update the tail address everytime we call the xmit function. This should make no impact in older versions of MAC but in newer versions there are some DMA features which allows the IP to fetch descriptors in advance and in a non sequential order so its critical that we set the tail address correctly. Signed-off-by:
Jose Abreu <joabreu@synopsys.com> Fixes: f748be53 ("stmmac: support new GMAC4") Cc: David S. Miller <davem@davemloft.net> Cc: Joao Pinto <jpinto@synopsys.com> Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com> Cc: Alexandre Torgue <alexandre.torgue@st.com> Signed-off-by:
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Jose Abreu authored
This follows David Miller advice and tries to fix coalesce timer in multi-queue scenarios. We are now using per-queue coalesce values and per-queue TX timer. Coalesce timer default values was changed to 1ms and the coalesce frames to 25. Tested in B2B setup between XGMAC2 and GMAC5. Signed-off-by:
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- 18 Sep, 2018 11 commits
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Greg Kroah-Hartman authored
Dave writes: "Various fixes, all over the place: 1) OOB data generation fix in bluetooth, from Matias Karhumaa. 2) BPF BTF boundary calculation fix, from Martin KaFai Lau. 3) Don't bug on excessive frags, to be compatible in situations mixing older and newer kernels on each end. From Juergen Gross. 4) Scheduling in RCU fix in hv_netvsc, from Stephen Hemminger. 5) Zero keying information in TLS layer before freeing copies of them, from Sabrina Dubroca. 6) Fix NULL deref in act_sample, from Davide Caratti. 7) Orphan SKB before GRO in veth to prevent crashes with XDP, from Toshiaki Makita. 8) Fix use after free in ip6_xmit, from Eric Dumazet. 9) Fix VF mac address regression in bnxt_en, from Micahel Chan. 10) Fix MSG_PEEK behavior in TLS layer, from Daniel Borkmann. 11) Programming adjustments to r8169 which fix not being to enter deep sleep states on some machines, from Kai-Heng Feng and Hans de Goede. 12) Fix DST_NOCOUNT flag handling for ipv6 routes, from Peter Oskolkov." * gitolite.kernel.org:/pub/scm/linux/kernel/git/davem/net: (45 commits) net/ipv6: do not copy dst flags on rt init qmi_wwan: set DTR for modems in forced USB2 mode clk: x86: Stop marking clocks as CLK_IS_CRITICAL r8169: Get and enable optional ether_clk clock clk: x86: add "ether_clk" alias for Bay Trail / Cherry Trail r8169: enable ASPM on RTL8106E r8169: Align ASPM/CLKREQ setting function with vendor driver Revert "kcm: remove any offset before parsing messages" kcm: remove any offset before parsing messages net: ethernet: Fix a unused function warning. net: dsa: mv88e6xxx: Fix ATU Miss Violation tls: fix currently broken MSG_PEEK behavior hv_netvsc: pair VF based on serial number PCI: hv: support reporting serial number as slot information bnxt_en: Fix VF mac address regression. ipv6: fix possible use-after-free in ip6_xmit() net: hp100: fix always-true check for link up state ARM: dts: at91: add new compatibility string for macb on sama5d3 net: macb: disable scatter-gather for macb on sama5d3 net: mvpp2: let phylink manage the carrier state ... -
Peter Oskolkov authored
DST_NOCOUNT in dst_entry::flags tracks whether the entry counts toward route cache size (net->ipv6.sysctl.ip6_rt_max_size). If the flag is NOT set, dst_ops::pcpuc_entries counter is incremented in dist_init() and decremented in dst_destroy(). This flag is tied to allocation/deallocation of dst_entry and should not be copied from another dst/route. Otherwise it can happen that dst_ops::pcpuc_entries counter grows until no new routes can be allocated because the counter reached ip6_rt_max_size due to DST_NOCOUNT not set and thus no counter decrements on gc-ed routes. Fixes: 3b6761d1 ("net/ipv6: Move dst flags to booleans in fib entries") Cc: David Ahern <dsahern@gmail.com> Acked-by:
Peter Oskolkov <posk@google.com> Reviewed-by:
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Bjørn Mork authored
Recent firmware revisions have added the ability to force these modems to USB2 mode, hiding their SuperSpeed capabilities from the host. The driver has been using the SuperSpeed capability, as shown by the bcdUSB field of the device descriptor, to detect the need to enable the DTR quirk. This method fails when the modems are forced to USB2 mode by the modem firmware. Fix by unconditionally enabling the DTR quirk for the affected device IDs. Reported-by:
Fred Veldini <fred.veldini@gmail.com> Reported-by:
Deshu Wen <dwen@sierrawireless.com> Signed-off-by:
Bjørn Mork <bjorn@mork.no> Reported-by:
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David S. Miller authored
Hans de Goede says: ==================== r8169 (x86) clk fixes to fix S0ix not being reached This series adds code to the r8169 ethernet driver to get and enable an external clock if present, avoiding the need for a hack in the clk-pmc-atom driver where that clock was left on continuesly causing x86 some devices to not reach deep power saving states (S0ix) when suspended causing to them to quickly drain their battery while suspended. The 3 commits in this series need to be merged in order to avoid regressions while bisecting. The clk-pmc-atom driver does not see much changes (it was last touched over a year ago). So the clk maintainers have agreed with merging all 3 patches through the net tree. All 3 patches have Stephen Boyd's Acked-by for this purpose. This v2 of the series only had some minor tweaks done to the commit messages and is ready for merging through the net tree now. ==================== Signed-off-by: -
Hans de Goede authored
Commit d31fd43c ("clk: x86: Do not gate clocks enabled by the firmware"), which added the code to mark clocks as CLK_IS_CRITICAL, causes all unclaimed PMC clocks on Cherry Trail devices to be on all the time, resulting on the device not being able to reach S0i3 when suspended. The reason for this commit is that on some Bay Trail / Cherry Trail devices the r8169 ethernet controller uses pmc_plt_clk_4. Now that the clk-pmc-atom driver exports an "ether_clk" alias for pmc_plt_clk_4 and the r8169 driver has been modified to get and enable this clock (if present) the marking of the clocks as CLK_IS_CRITICAL is no longer necessary. This commit removes the CLK_IS_CRITICAL marking, fixing Cherry Trail devices not being able to reach S0i3 greatly decreasing their battery drain when suspended. Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=193891#c102 Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=196861 Cc: Johannes Stezenbach <js@sig21.net> Cc: Carlo Caione <carlo@endlessm.com> Reported-by:
Johannes Stezenbach <js@sig21.net> Reviewed-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by:
Stephen Boyd <sboyd@kernel.org> Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
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Hans de Goede authored
On some boards a platform clock is used as clock for the r8169 chip, this commit adds support for getting and enabling this clock (assuming it has an "ether_clk" alias set on it). This is related to commit d31fd43c ("clk: x86: Do not gate clocks enabled by the firmware") which is a previous attempt to fix this for some x86 boards, but this causes all Cherry Trail SoC using boards to not reach there lowest power states when suspending. This commit (together with an atom-pmc-clk driver commit adding the alias) fixes things properly by making the r8169 get the clock and enable it when it needs it. Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=193891#c102 Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=196861 Cc: Johannes Stezenbach <js@sig21.net> Cc: Carlo Caione <carlo@endlessm.com> Reported-by:
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Hans de Goede authored
Commit d31fd43c ("clk: x86: Do not gate clocks enabled by the firmware") causes all unclaimed PMC clocks on Cherry Trail devices to be on all the time, resulting on the device not being able to reach S0i2 or S0i3 when suspended. The reason for this commit is that on some Bay Trail / Cherry Trail devices the ethernet controller uses pmc_plt_clk_4. This commit adds an "ether_clk" alias, so that the relevant ethernet drivers can try to (optionally) use this, without needing X86 specific code / hacks, thus fixing ethernet on these devices without breaking S0i3 support. This commit uses clkdev_hw_create() to create the alias, mirroring the code for the already existing "mclk" alias for pmc_plt_clk_3. Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=193891#c102 Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=196861 Cc: Johannes Stezenbach <js@sig21.net> Cc: Carlo Caione <carlo@endlessm.com> Reported-by:
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Kai-Heng Feng authored
The Intel SoC was prevented from entering lower idle state because of RTL8106E's ASPM was not enabled. So enable ASPM on RTL8106E (chip version 39). Now the Intel SoC can enter lower idle state, power consumption and temperature are much lower. Signed-off-by:
Kai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by:
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Kai-Heng Feng authored
There's a small delay after setting ASPM in vendor drivers, r8101 and r8168. In addition, those drivers enable ASPM before ClkReq, also change that to align with vendor driver. I haven't seen anything bad becasue of this, but I think it's better to keep in sync with vendor driver. Signed-off-by:
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David S. Miller authored
This reverts commit 072222b4. I just read that this causes regressions. Signed-off-by:
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Dominique Martinet authored
The current code assumes kcm users know they need to look for the strparser offset within their bpf program, which is not documented anywhere and examples laying around do not do. The actual recv function does handle the offset well, so we can create a temporary clone of the skb and pull that one up as required for parsing. The pull itself has a cost if we are pulling beyond the head data, measured to 2-3% latency in a noisy VM with a local client stressing that path. The clone's impact seemed too small to measure. This bug can be exhibited easily by implementing a "trivial" kcm parser taking the first bytes as size, and on the client sending at least two such packets in a single write(). Note that bpf sockmap has the same problem, both for parse and for recv, so it would pulling twice or a real pull within the strparser logic if anyone cares about that. Signed-off-by:
Dominique Martinet <asmadeus@codewreck.org> Signed-off-by:
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- 17 Sep, 2018 9 commits
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Saeed Mahameed authored
Read TLS caps from the core driver only when TLS is supported, i.e mlx5_accel_is_tls_device returns true. Fixes: 790af90c ("net/mlx5e: TLS, build TLS netdev from capabilities") Change-Id: I5f21ff4d684901af487e366a7e0cf032b54ee9cf Reported-by:
Michal Kubecek <mkubecek@suse.cz> Signed-off-by:
Saeed Mahameed <saeedm@mellanox.com> Reviewed-by:
Boris Pismenny <borisp@mellanox.com> Reviewed-by:
Tariq Toukan <tariqt@mellanox.com>
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Alaa Hleihel authored
When modifying hairpin SQ, instead of checking if the next state equals to MLX5_SQC_STATE_RDY, we compare it against the MLX5_RQC_STATE_RDY enum value. The code worked since both of MLX5_RQC_STATE_RDY and MLX5_SQC_STATE_RDY have the same value today. This patch fixes this issue. Fixes: 18e568c3 ("net/mlx5: Hairpin pair core object setup") Change-Id: I6758aa7b4bd137966ae28206b70648c5bc223b46 Signed-off-by:
Alaa Hleihel <alaa@mellanox.com> Reviewed-by:
Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by:
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Eli Cohen authored
Use accessor function READ_ONCE to read from coherent memory modified by the device and read by the driver. This becomes most important in preemptive kernels where cond_resched implementation does not have the side effect which guaranteed the updated value. Fixes: 269d26f4 ("net/mlx5: Reduce command polling interval") Change-Id: Ie6deeb565ffaf76777b07448c7fbcce3510bbb8a Signed-off-by:
Eli Cohen <eli@mellanox.com> Reported-by:
Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by:
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https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spiGreg Kroah-Hartman authored
Mark writes: "spi: Fixes for v4.19 As well as one driver fix there's a couple of fixes here which address issues with the use of IDRs for allocation of dynamic bus numbers, ensuring that dynamic bus numbers interact well with static bus numbers assigned via DT and otherwise." * tag 'spi-fix-v4.19-rc4' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi: spi-fsl-dspi: fix broken DSPI_EOQ_MODE spi: Fix double IDR allocation with DT aliases spi: fix IDR collision on systems with both fixed and dynamic SPI bus numbers
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zhong jiang authored
Fix the following compile warning: drivers/net/ethernet/microchip/lan743x_main.c:2964:12: warning: lan743x_pm_suspend defined but not used [-Wunused-function] static int lan743x_pm_suspend(struct device *dev) drivers/net/ethernet/microchip/lan743x_main.c:2987:12: warning: lan743x_pm_resume defined but not used [-Wunused-function] static int lan743x_pm_resume(struct device *dev) Signed-off-by:
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Andrew Lunn authored
Fix a cut/paste error and a typo which results in ATU miss violations not being reported. Fixes: 0977644c ("net: dsa: mv88e6xxx: Decode ATU problem interrupt") Signed-off-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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Daniel Borkmann authored
In kTLS MSG_PEEK behavior is currently failing, strace example: [pid 2430] socket(AF_INET, SOCK_STREAM, IPPROTO_IP) = 3 [pid 2430] socket(AF_INET, SOCK_STREAM, IPPROTO_IP) = 4 [pid 2430] bind(4, {sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("0.0.0.0")}, 16) = 0 [pid 2430] listen(4, 10) = 0 [pid 2430] getsockname(4, {sa_family=AF_INET, sin_port=htons(38855), sin_addr=inet_addr("0.0.0.0")}, [16]) = 0 [pid 2430] connect(3, {sa_family=AF_INET, sin_port=htons(38855), sin_addr=inet_addr("0.0.0.0")}, 16) = 0 [pid 2430] setsockopt(3, SOL_TCP, 0x1f /* TCP_??? */, [7564404], 4) = 0 [pid 2430] setsockopt(3, 0x11a /* SOL_?? */, 1, "\3\0033\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 40) = 0 [pid 2430] accept(4, {sa_family=AF_INET, sin_port=htons(49636), sin_addr=inet_addr("127.0.0.1")}, [16]) = 5 [pid 2430] setsockopt(5, SOL_TCP, 0x1f /* TCP_??? */, [7564404], 4) = 0 [pid 2430] setsockopt(5, 0x11a /* SOL_?? */, 2, "\3\0033\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 40) = 0 [pid 2430] close(4) = 0 [pid 2430] sendto(3, "test_read_peek", 14, 0, NULL, 0) = 14 [pid 2430] sendto(3, "_mult_recs\0", 11, 0, NULL, 0) = 11 [pid 2430] recvfrom(5, "test_read_peektest_read_peektest"..., 64, MSG_PEEK, NULL, NULL) = 64 As can be seen from strace, there are two TLS records sent, i) 'test_read_peek' and ii) '_mult_recs\0' where we end up peeking 'test_read_peektest_read_peektest'. This is clearly wrong, and what happens is that given peek cannot call into tls_sw_advance_skb() to unpause strparser and proceed with the next skb, we end up looping over the current one, copying the 'test_read_peek' over and over into the user provided buffer. Here, we can only peek into the currently held skb (current, full TLS record) as otherwise we would end up having to hold all the original skb(s) (depending on the peek depth) in a separate queue when unpausing strparser to process next records, minimally intrusive is to return only up to the current record's size (which likely was what c46234eb ("tls: RX path for ktls") originally intended as well). Thus, after patch we properly peek the first record: [pid 2046] wait4(2075, <unfinished ...> [pid 2075] socket(AF_INET, SOCK_STREAM, IPPROTO_IP) = 3 [pid 2075] socket(AF_INET, SOCK_STREAM, IPPROTO_IP) = 4 [pid 2075] bind(4, {sa_family=AF_INET, sin_port=htons(0), sin_addr=inet_addr("0.0.0.0")}, 16) = 0 [pid 2075] listen(4, 10) = 0 [pid 2075] getsockname(4, {sa_family=AF_INET, sin_port=htons(55115), sin_addr=inet_addr("0.0.0.0")}, [16]) = 0 [pid 2075] connect(3, {sa_family=AF_INET, sin_port=htons(55115), sin_addr=inet_addr("0.0.0.0")}, 16) = 0 [pid 2075] setsockopt(3, SOL_TCP, 0x1f /* TCP_??? */, [7564404], 4) = 0 [pid 2075] setsockopt(3, 0x11a /* SOL_?? */, 1, "\3\0033\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 40) = 0 [pid 2075] accept(4, {sa_family=AF_INET, sin_port=htons(45732), sin_addr=inet_addr("127.0.0.1")}, [16]) = 5 [pid 2075] setsockopt(5, SOL_TCP, 0x1f /* TCP_??? */, [7564404], 4) = 0 [pid 2075] setsockopt(5, 0x11a /* SOL_?? */, 2, "\3\0033\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 40) = 0 [pid 2075] close(4) = 0 [pid 2075] sendto(3, "test_read_peek", 14, 0, NULL, 0) = 14 [pid 2075] sendto(3, "_mult_recs\0", 11, 0, NULL, 0) = 11 [pid 2075] recvfrom(5, "test_read_peek", 64, MSG_PEEK, NULL, NULL) = 14 Fixes: c46234eb ("tls: RX path for ktls") Signed-off-by:Daniel Borkmann <daniel@iogearbox.net> Signed-off-by:
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David S. Miller authored
Stephen Hemminger says: ==================== hv_netvsc: associate VF and PV device by serial number The Hyper-V implementation of PCI controller has concept of 32 bit serial number (not to be confused with PCI-E serial number). This value is sent in the protocol from the host to indicate SR-IOV VF device is attached to a synthetic NIC. Using the serial number (instead of MAC address) to associate the two devices avoids lots of potential problems when there are duplicate MAC addresses from tunnels or layered devices. The patch set is broken into two parts, one is for the PCI controller and the other is for the netvsc device. Normally, these go through different trees but sending them together here for better review. The PCI changes were submitted previously, but the main review comment was "why do you need this?". This is why. v2 - slot name can be shorter. remove locking when creating pci_slots; see comment for explaination ==================== Signed-off-by: -
Stephen Hemminger authored
Matching network device based on MAC address is problematic since a non VF network device can be creted with a duplicate MAC address causing confusion and problems. The VMBus API does provide a serial number that is a better matching method. Signed-off-by:
Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by:
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