[{"id":1782275,"web_url":"http://patchwork.ozlabs.org/comment/1782275/","msgid":"<81603cbd-603d-1d93-a29a-1174fc826dec@mellanox.com>","list_archive_url":null,"date":"2017-10-08T15:07:51","subject":"Re: [PATCH 41/47] netfilter: convert hook list to an array","submitter":{"id":68926,"url":"http://patchwork.ozlabs.org/api/people/68926/","name":"Tariq Toukan","email":"tariqt@mellanox.com"},"content":"On 04/09/2017 1:42 AM, Pablo Neira Ayuso wrote:\n> From: Aaron Conole \n> \n> This converts the storage and layout of netfilter hook entries from a\n> linked list to an array. After this commit, hook entries will be\n> stored adjacent in memory. The next pointer is no longer required.\n> \n> The ops pointers are stored at the end of the array as they are only\n> used in the register/unregister path and in the legacy br_netfilter code.\n> \n> nf_unregister_net_hooks() is slower than needed as it just calls\n> nf_unregister_net_hook in a loop (i.e. at least n synchronize_net()\n> calls), this will be addressed in followup patch.\n> \n> Test setup:\n> - ixgbe 10gbit\n> - netperf UDP_STREAM, 64 byte packets\n> - 5 hooks: (raw + mangle prerouting, mangle+filter input, inet filter):\n> empty mangle and raw prerouting, mangle and filter input hooks:\n> 353.9\n> this patch:\n> 364.2\n> \n> Signed-off-by: Aaron Conole \n> Signed-off-by: Florian Westphal \n> Signed-off-by: Pablo Neira Ayuso \n> ---\n\nHi,\n\nWe experience a regression in server with iommu enabled.\nAfter installing kernel and rebooting the server, it crashes during boot.\nPlease see trace below.\n\nBisecting points to this patch.\n\nAny idea what's wrong?\n\nRegards,\nTariq Toukan\n\n[ 25.590816] RIP: 0010:_raw_read_lock_bh+0x15/0x40\n[ 25.596160] RSP: 0018:ffffc90007db77a0 EFLAGS: 00010286\n[ 25.602089] RAX: 0000000000000100 RBX: 0000000000000003 RCX: \n0000000000000000\n[ 25.610152] RDX: 0000000000000000 RSI: ffffc90007db7898 RDI: \n000000000000003c\n[ 25.618470] RBP: ffffc90007db7840 R08: 0000000000000001 R09: \n0000000087c10eef\n[ 25.626786] R10: ffff88180f21f040 R11: ffffea005feeaf00 R12: \n0000000000000000\n[ 25.635103] R13: ffffc90007db7898 R14: ffff8817fbabdc00 R15: \nffff8817fbabdc00\n[ 25.643421] FS: 00007fcdb7771740(0000) GS:ffff88180f200000(0000) \nknlGS:0000000000000000\n[ 25.653056] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 25.659818] CR2: 000000000000003c CR3: 0000001809ae0001 CR4: \n00000000001606e0\n[ 25.668136] Call Trace:\n[ 25.671215] ? ebt_do_table+0x3d/0x6e8 [ebtables]\n[ 25.676817] ebt_nat_out+0x1f/0x30 [ebtable_nat]\n[ 25.682326] nf_hook_slow+0x3c/0xb0\n[ 25.686576] __br_forward+0xb1/0x1b0 [bridge]\n[ 25.691786] ? br_dev_queue_push_xmit+0x170/0x170 [bridge]\n[ 25.704333] br_flood+0x130/0x1b0 [bridge]\n[ 25.709254] br_dev_xmit+0x1e5/0x2a0 [bridge]\n[ 25.714468] dev_hard_start_xmit+0xa1/0x210\n[ 25.719485] __dev_queue_xmit+0x4f6/0x610\n[ 25.724304] dev_queue_xmit+0x10/0x20\n[ 25.728739] ip_finish_output2+0x233/0x320\n[ 25.733656] ip_finish_output+0x12a/0x1d0\n[ 25.738474] ? netif_rx_ni+0x33/0x80\n[ 25.742805] ip_mc_output+0x84/0x250\n[ 25.747140] ip_local_out+0x35/0x40\n[ 25.751377] ip_send_skb+0x19/0x40\n[ 25.755583] udp_send_skb+0x172/0x280\n[ 25.760013] udp_sendmsg+0x2c0/0xa30\n[ 25.764348] ? ip_reply_glue_bits+0x50/0x50\n[ 25.769366] ? import_iovec+0x2c/0xc0\n[ 25.773801] inet_sendmsg+0x31/0xb0\n[ 25.778042] sock_sendmsg+0x38/0x50\n[ 25.782276] ___sys_sendmsg+0x25c/0x270\n[ 25.786904] ? file_update_time+0x3a/0xf0\n[ 25.791727] ? __wake_up_sync_key+0x50/0x60\n[ 25.796741] ? pipe_write+0x3cc/0x420\n[ 25.801175] ? __vfs_write+0xd0/0x130\n[ 25.805608] __sys_sendmsg+0x45/0x80\n[ 25.809938] SyS_sendmsg+0x12/0x20\n[ 25.814077] entry_SYSCALL_64_fastpath+0x1a/0xa5\n[ 25.819577] RIP: 0033:0x7fcdb64ac7a0\n[ 25.823908] RSP: 002b:00007ffe2b98cb98 EFLAGS: 00000246 ORIG_RAX: \n000000000000002e\n[ 25.832961] RAX: ffffffffffffffda RBX: 00007ffe2b98c630 RCX: \n00007fcdb64ac7a0\n[ 25.841270] RDX: 0000000000000000 RSI: 00007ffe2b98cc50 RDI: \n000000000000000c\n[ 25.849583] RBP: 00007fcdb69018f8 R08: 00007ffe2b98cbc3 R09: \n0000000000000004\n[ 25.857901] R10: 0000000000000019 R11: 0000000000000246 R12: \n0000000000000000\n[ 25.866213] R13: 0000000000000000 R14: 00007ffe2b98c6c0 R15: \n00007ffe2b98c6e0\n[ 25.874520] Code: 55 48 89 e5 e8 bd 74 82 ff 5d c3 66 66 2e 0f 1f 84 \n00 00 00 00 00 0f 1f 44 00 00 65 81 05 68 78 74 7e 00 02 00 00 b8 00 01 \n00 00 0f c1 07 8d b0 00 01 00 00 40 84\n[ 25.896497] RIP: _raw_read_lock_bh+0x15/0x40 RSP: ffffc90007db77a0\n[ 25.903744] CR2: 000000000000003c\n[ 25.907808] ---[ end trace 4f824a5c467b1872 ]---\n[ 25.907811] BUG: unable to handle kernel NULL pointer dereference at \n000000000000003c\n[ 25.907828] IP: _raw_read_lock_bh+0x15/0x40\n[ 25.907830] PGD 0 P4D 0\n[ 25.907834] Oops: 0002 [#2] SMP\n[ 25.907836] Modules linked in: ebtable_nat(+) ebtables ib_ucm mlx4_en \nmlx4_ib rpcrdma mlx4_core rdma_ucm ib_uverbs ib_iser ib_umad rdma_cm \nib_ipoib iw_cm ib_cm mlx5_ib bridge stp llc sge\n[ 25.907895] CPU: 12 PID: 0 Comm: swapper/12 Tainted: G D \n4.13.0-for-linust-perf-2017-09-10_06-48-01-64 #1\n[ 25.907896] Hardware name: Dell Inc. PowerEdge R720/0HJK12, BIOS \n2.2.3 05/20/2014\n[ 25.907898] task: ffff880c0c2f8000 task.stack: ffffc90006318000\n[ 25.907901] RIP: 0010:_raw_read_lock_bh+0x15/0x40\n[ 25.907902] RSP: 0018:ffff880c0f9839d0 EFLAGS: 00010286\n[ 25.907904] RAX: 0000000000000100 RBX: 0000000000000003 RCX: \n0000000000000000\n[ 25.907905] RDX: 0000000000000000 RSI: ffff880c0f983ac8 RDI: \n000000000000003c\n[ 25.907906] RBP: ffff880c0f983a70 R08: 0000000000000001 R09: \n0000000000000000\n[ 25.907907] R10: 0000000000000000 R11: 0000000000000000 R12: \n0000000000000000\n[ 25.907909] R13: ffff880c0f983ac8 R14: ffff880bfcfdda00 R15: \nffff880bfcfdda00\n[ 25.907911] FS: 0000000000000000(0000) GS:ffff880c0f980000(0000) \nknlGS:0000000000000000\n[ 25.907912] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 25.907913] CR2: 000000000000003c CR3: 0000001809a5e001 CR4: \n00000000001606e0\n[ 25.907915] Call Trace:\n[ 25.907918] \n[ 25.907925] ? ebt_do_table+0x3d/0x6e8 [ebtables]\n[ 25.907929] ? lock_timer_base+0x7d/0xa0\n[ 25.907932] ? mod_timer+0xa9/0x2c0\n[ 25.907937] ebt_nat_out+0x1f/0x30 [ebtable_nat]\n[ 25.907946] nf_hook_slow+0x3c/0xb0\n[ 25.907958] __br_forward+0xb1/0x1b0 [bridge]\n[ 25.907966] ? br_dev_queue_push_xmit+0x170/0x170 [bridge]\n[ 25.907972] br_flood+0x130/0x1b0 [bridge]\n[ 25.907979] br_dev_xmit+0x1e5/0x2a0 [bridge]\n[ 25.907987] dev_hard_start_xmit+0xa1/0x210\n[ 25.907990] __dev_queue_xmit+0x4f6/0x610\n[ 25.907993] ? _raw_read_unlock_bh+0x20/0x30\n[ 25.907996] dev_queue_xmit+0x10/0x20\n[ 25.908001] ip6_finish_output2+0x3b5/0x4c0\n[ 25.908005] ip6_finish_output+0xa5/0x100\n[ 25.908007] ip6_output+0x5b/0xf0\n[ 25.908012] NF_HOOK.constprop.43+0x30/0x90\n[ 25.908015] ? icmp6_dst_alloc+0xd2/0x110\n[ 25.908018] mld_sendpack+0x168/0x220\n[ 25.908021] mld_ifc_timer_expire+0x17f/0x290\n[ 25.908024] ? mld_dad_timer_expire+0x60/0x60\n[ 25.908026] call_timer_fn+0x35/0x140\n[ 25.908028] run_timer_softirq+0x1ce/0x410\n[ 25.908031] ? timerqueue_add+0x59/0x90\n[ 25.908036] ? sched_clock+0x9/0x10\n[ 25.908039] ? sched_clock_cpu+0x11/0xb0\n[ 25.908042] __do_softirq+0xd1/0x27f\n[ 25.908046] irq_exit+0xb5/0xc0\n[ 25.908048] smp_apic_timer_interrupt+0x69/0x130\n[ 25.908050] apic_timer_interrupt+0x93/0xa0\n[ 25.908052] \n[ 25.908056] RIP: 0010:cpuidle_enter_state+0xe9/0x280\n[ 25.908057] RSP: 0018:ffffc9000631be88 EFLAGS: 00000246 ORIG_RAX: \nffffffffffffff10\n[ 25.908059] RAX: ffff880c0f99bdc0 RBX: ffffe8f400180270 RCX: \n000000000000001f\n[ 25.908060] RDX: 0000000000000000 RSI: ffff7761f8923d16 RDI: \n0000000000000000\n[ 25.908061] RBP: ffffc9000631bec0 R08: 00000000000002a1 R09: \n0000000000000390\n[ 25.908062] R10: 000000000000037e R11: 0000000000000018 R12: \n0000000000000004\n[ 25.908063] R13: 000000000000000c R14: ffffe8f400180270 R15: \n00000005f7b4d9b4\n[ 25.908068] ? cpuidle_enter_state+0xc5/0x280\n[ 25.908071] cpuidle_enter+0x17/0x20\n[ 25.908074] call_cpuidle+0x23/0x40\n[ 25.908077] do_idle+0x172/0x1e0\n[ 25.908079] cpu_startup_entry+0x1d/0x30\n[ 25.908084] start_secondary+0x103/0x130\n[ 25.908087] secondary_startup_64+0xa5/0xa5\n[ 25.908089] Code: 55 48 89 e5 e8 bd 74 82 ff 5d c3 66 66 2e 0f 1f 84 \n00 00 00 00 00 0f 1f 44 00 00 65 81 05 68 78 74 7e 00 02 00 00 b8 00 01 \n00 00 0f c1 07 8d b0 00 01 00 00 40 84\n[ 25.908124] RIP: _raw_read_lock_bh+0x15/0x40 RSP: ffff880c0f9839d0\n[ 25.908124] CR2: 000000000000003c\n[ 25.908154] ---[ end trace 4f824a5c467b1873 ]---\n[ 25.913089] Kernel panic - not syncing: Fatal exception in interrupt\n[ 26.964216] Shutting down cpus with NMI\n[ 26.968841] Kernel Offset: disabled\n[ 26.975644] ---[ end Kernel panic - not syncing: Fatal exception in \ninterrupt\n--\nTo unsubscribe from this list: send the line \"unsubscribe netfilter-devel\" in\nthe body of a message to majordomo@vger.kernel.org\nMore majordomo info at http://vger.kernel.org/majordomo-info.html","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; 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a=rsa-sha256; c=relaxed/relaxed; d=Mellanox.com;\n\ts=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version;\n\tbh=+xOp3SI8fMQ2pJhRTomrfFTm96qIxAov99HqFU/CZoA=;\n\tb=V+ixoCwH+hNCPiQVG2BCmzC4BwmGWh7tiVsqXMs2GraMEoJMYoErk0U82nGm/0u+FcHezQNvfLGE1EE5Td6PLtbX9fUejk6MzZfVRsPPLTw2hiO8O5D5xbug/4ieWhWvVmq0pwfW+TnMk9GHeXG+o65ZmHAa1gAV2MTMx0BFdmE=","Subject":"Re: [PATCH 41/47] netfilter: convert hook list to an array","To":"Pablo Neira Ayuso ,\n\tnetfilter-devel@vger.kernel.org, Aaron Conole ,\n\tFlorian Westphal ","Cc":"davem@davemloft.net, netdev@vger.kernel.org","References":"<1504478574-13281-1-git-send-email-pablo@netfilter.org>\n\t<1504478574-13281-6-git-send-email-pablo@netfilter.org>","From":"Tariq Toukan ","Message-ID":"<81603cbd-603d-1d93-a29a-1174fc826dec@mellanox.com>","Date":"Sun, 8 Oct 2017 18:07:51 +0300","User-Agent":"Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101\n\tThunderbird/52.3.0","MIME-Version":"1.0","In-Reply-To":"<1504478574-13281-6-git-send-email-pablo@netfilter.org>","Content-Type":"text/plain; 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SFP:1101; SCL:1; SRVR:AM4PR05MB1794; H:[10.8.2.253];\n\tFPR:; SPF:None; PTR:InfoNoRecords; MX:1; A:1; LANG:en; ","Received-SPF":"None (protection.outlook.com: mellanox.com does not designate\n\tpermitted sender hosts)","SpamDiagnosticOutput":"1:99","SpamDiagnosticMetadata":"NSPM","X-OriginatorOrg":"Mellanox.com","X-MS-Exchange-CrossTenant-OriginalArrivalTime":"08 Oct 2017 15:07:55.5833\n\t(UTC)","X-MS-Exchange-CrossTenant-FromEntityHeader":"Hosted","X-MS-Exchange-CrossTenant-Id":"a652971c-7d2e-4d9b-a6a4-d149256f461b","X-MS-Exchange-Transport-CrossTenantHeadersStamped":"AM4PR05MB1794","Sender":"netfilter-devel-owner@vger.kernel.org","Precedence":"bulk","List-ID":"","X-Mailing-List":"netfilter-devel@vger.kernel.org"}},{"id":1782638,"web_url":"http://patchwork.ozlabs.org/comment/1782638/","msgid":"<20171009093132.GA7150@breakpoint.cc>","list_archive_url":null,"date":"2017-10-09T09:31:32","subject":"Re: [PATCH 41/47] netfilter: convert hook list to an array","submitter":{"id":1025,"url":"http://patchwork.ozlabs.org/api/people/1025/","name":"Florian Westphal","email":"fw@strlen.de"},"content":"Tariq Toukan wrote:\n> On 04/09/2017 1:42 AM, Pablo Neira Ayuso wrote:\n> >From: Aaron Conole \n> >\n> >This converts the storage and layout of netfilter hook entries from a\n> >linked list to an array. After this commit, hook entries will be\n> >stored adjacent in memory. The next pointer is no longer required.\n> >\n> >The ops pointers are stored at the end of the array as they are only\n> >used in the register/unregister path and in the legacy br_netfilter code.\n> >\n> >nf_unregister_net_hooks() is slower than needed as it just calls\n> >nf_unregister_net_hook in a loop (i.e. at least n synchronize_net()\n> >calls), this will be addressed in followup patch.\n> >\n> >Test setup:\n> > - ixgbe 10gbit\n> > - netperf UDP_STREAM, 64 byte packets\n> > - 5 hooks: (raw + mangle prerouting, mangle+filter input, inet filter):\n> >empty mangle and raw prerouting, mangle and filter input hooks:\n> >353.9\n> >this patch:\n> >364.2\n> >\n> >Signed-off-by: Aaron Conole \n> >Signed-off-by: Florian Westphal \n> >Signed-off-by: Pablo Neira Ayuso \n> >---\n> \n> Hi,\n> \n> We experience a regression in server with iommu enabled.\n> After installing kernel and rebooting the server, it crashes during boot.\n> Please see trace below.\n> \n> Bisecting points to this patch.\n\nHmm, strange because\n\n> [ 25.907811] BUG: unable to handle kernel NULL pointer dereference at\n> 000000000000003c\n> [ 25.907828] IP: _raw_read_lock_bh+0x15/0x40\n\n... this says that ebt_table is NULL (0x3c is the offset of the rwlock).\n\nIf you don't have that fix already, does\nhttps://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf.git/commit/?id=e6b72ee88a56bcfe63f72e9c30766484c45bec72\n\nnetfilter: ebtables: fix race condition in frame_filter_net_init()\n\nresolve this bug for you?\n--\nTo unsubscribe from this list: send the line \"unsubscribe netfilter-devel\" in\nthe body of a message to majordomo@vger.kernel.org\nMore majordomo info at http://vger.kernel.org/majordomo-info.html","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":"ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=netfilter-devel-owner@vger.kernel.org;\n\treceiver=)","Received":["from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3y9Zkp74hpz9tXv\n\tfor ;\n\tMon, 9 Oct 2017 20:31:46 +1100 (AEDT)","(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1753879AbdJIJbm (ORCPT );\n\tMon, 9 Oct 2017 05:31:42 -0400","from Chamillionaire.breakpoint.cc ([146.0.238.67]:53416 \"EHLO\n\tChamillionaire.breakpoint.cc\" rhost-flags-OK-OK-OK-OK)\n\tby vger.kernel.org with ESMTP id S1751636AbdJIJbl (ORCPT\n\t);\n\tMon, 9 Oct 2017 05:31:41 -0400","from fw by Chamillionaire.breakpoint.cc with local (Exim 4.84_2)\n\t(envelope-from )\n\tid 1e1UPM-0002gZ-LN; Mon, 09 Oct 2017 11:31:32 +0200"],"Date":"Mon, 9 Oct 2017 11:31:32 +0200","From":"Florian Westphal ","To":"Tariq Toukan ","Cc":"Pablo Neira Ayuso ,\n\tnetfilter-devel@vger.kernel.org, Aaron Conole ,\n\tFlorian Westphal , davem@davemloft.net,\n\tnetdev@vger.kernel.org","Subject":"Re: [PATCH 41/47] netfilter: convert hook list to an array","Message-ID":"<20171009093132.GA7150@breakpoint.cc>","References":"<1504478574-13281-1-git-send-email-pablo@netfilter.org>\n\t<1504478574-13281-6-git-send-email-pablo@netfilter.org>\n\t<81603cbd-603d-1d93-a29a-1174fc826dec@mellanox.com>","MIME-Version":"1.0","Content-Type":"text/plain; charset=us-ascii","Content-Disposition":"inline","In-Reply-To":"<81603cbd-603d-1d93-a29a-1174fc826dec@mellanox.com>","User-Agent":"Mutt/1.5.23 (2014-03-12)","Sender":"netfilter-devel-owner@vger.kernel.org","Precedence":"bulk","List-ID":"","X-Mailing-List":"netfilter-devel@vger.kernel.org"}},{"id":1782678,"web_url":"http://patchwork.ozlabs.org/comment/1782678/","msgid":"<2249f4d8-b962-a953-70f6-33a5dc4ca5f2@mellanox.com>","list_archive_url":null,"date":"2017-10-09T10:04:27","subject":"Re: [PATCH 41/47] netfilter: convert hook list to an array","submitter":{"id":68926,"url":"http://patchwork.ozlabs.org/api/people/68926/","name":"Tariq Toukan","email":"tariqt@mellanox.com"},"content":"On 09/10/2017 12:31 PM, Florian Westphal wrote:\n> Tariq Toukan wrote:\n>> On 04/09/2017 1:42 AM, Pablo Neira Ayuso wrote:\n>>> From: Aaron Conole \n>>>\n>>> This converts the storage and layout of netfilter hook entries from a\n>>> linked list to an array. After this commit, hook entries will be\n>>> stored adjacent in memory. The next pointer is no longer required.\n>>>\n>>> The ops pointers are stored at the end of the array as they are only\n>>> used in the register/unregister path and in the legacy br_netfilter code.\n>>>\n>>> nf_unregister_net_hooks() is slower than needed as it just calls\n>>> nf_unregister_net_hook in a loop (i.e. at least n synchronize_net()\n>>> calls), this will be addressed in followup patch.\n>>>\n>>> Test setup:\n>>> - ixgbe 10gbit\n>>> - netperf UDP_STREAM, 64 byte packets\n>>> - 5 hooks: (raw + mangle prerouting, mangle+filter input, inet filter):\n>>> empty mangle and raw prerouting, mangle and filter input hooks:\n>>> 353.9\n>>> this patch:\n>>> 364.2\n>>>\n>>> Signed-off-by: Aaron Conole \n>>> Signed-off-by: Florian Westphal \n>>> Signed-off-by: Pablo Neira Ayuso \n>>> ---\n>>\n>> Hi,\n>>\n>> We experience a regression in server with iommu enabled.\n>> After installing kernel and rebooting the server, it crashes during boot.\n>> Please see trace below.\n>>\n>> Bisecting points to this patch.\n> \n> Hmm, strange because\n> \n>> [ 25.907811] BUG: unable to handle kernel NULL pointer dereference at\n>> 000000000000003c\n>> [ 25.907828] IP: _raw_read_lock_bh+0x15/0x40\n> \n> ... this says that ebt_table is NULL (0x3c is the offset of the rwlock).\n> \n> If you don't have that fix already, does\n\nNo, didn't have it.\n\n> https://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf.git/commit/?id=e6b72ee88a56bcfe63f72e9c30766484c45bec72\n> \n> netfilter: ebtables: fix race condition in frame_filter_net_init()\n> \n> resolve this bug for you?\n> \n\nNow I applied the fix and bug is resolved.\n\nMany thanks!\nTariq\n--\nTo unsubscribe from this list: send the line \"unsubscribe netfilter-devel\" in\nthe body of a message to majordomo@vger.kernel.org\nMore majordomo info at http://vger.kernel.org/majordomo-info.html","headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@bilbo.ozlabs.org","Authentication-Results":["ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; 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a=rsa-sha256; c=relaxed/relaxed; d=Mellanox.com;\n\ts=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version;\n\tbh=//MnxDV6uUo5mVBu6Nz9j9qCHqFVWJPgYzOrC73F9XI=;\n\tb=YWPr//RUc0xCHRvXIa8RzA4aCA6zJuyUSEvPI9c2jsPjylecI2+/iUOshwHjLPpCaum3mDmt79dVh1A17RnuEyMNofYznBcsluBOknAODdAXaTQMFI3TBxQFpe6CVNXr/DkPaYsYknXdPKFgzKnhRBeCvPv1TtZTszfowqiprrU=","Subject":"Re: [PATCH 41/47] netfilter: convert hook list to an array","To":"Florian Westphal , Tariq Toukan ","Cc":"Pablo Neira Ayuso ,\n\tnetfilter-devel@vger.kernel.org, Aaron Conole ,\n\tdavem@davemloft.net, netdev@vger.kernel.org","References":"<1504478574-13281-1-git-send-email-pablo@netfilter.org>\n\t<1504478574-13281-6-git-send-email-pablo@netfilter.org>\n\t<81603cbd-603d-1d93-a29a-1174fc826dec@mellanox.com>\n\t<20171009093132.GA7150@breakpoint.cc>","From":"Tariq Toukan ","Message-ID":"<2249f4d8-b962-a953-70f6-33a5dc4ca5f2@mellanox.com>","Date":"Mon, 9 Oct 2017 13:04:27 +0300","User-Agent":"Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101\n\tThunderbird/52.3.0","MIME-Version":"1.0","In-Reply-To":"<20171009093132.GA7150@breakpoint.cc>","Content-Type":"text/plain; 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