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2013-10-11farsync: fix info leak in ioctlSalva Peiró
The fst_get_iface() code fails to initialize the two padding bytes of struct sync_serial_settings after the ->loopback member. Add an explicit memset(0) before filling the structure to avoid the info leak. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-11ipv6: Initialize ip6_tnl.hlen in gre tunnel even if no route is foundOussama Ghorbel
The ip6_tnl.hlen (gre and ipv6 headers length) is independent from the outgoing interface, so it would be better to initialize it even when no route is found, otherwise its value will be zero. While I'm not sure if this could happen in real life, but doing that will avoid to call the skb_push function with a zero in ip6gre_header function. Suggested-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: Oussama Ghorbel <ou.ghorbel@gmail.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-11netem: free skb's in tree on resetstephen hemminger
Netem can leak memory because packets get stored in red-black tree and it is not cleared on reset. Reported by: Сергеев Сергей <adron@yapic.net> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-11netem: update backlog after dropstephen hemminger
When packet is dropped from rb-tree netem the backlog statistic should also be updated. Reported-by: Сергеев Сергей <adron@yapic.net> Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-11l2tp: must disable bh before calling l2tp_xmit_skb()Eric Dumazet
François Cachereul made a very nice bug report and suspected the bh_lock_sock() / bh_unlok_sock() pair used in l2tp_xmit_skb() from process context was not good. This problem was added by commit 6af88da14ee284aaad6e4326da09a89191ab6165 ("l2tp: Fix locking in l2tp_core.c"). l2tp_eth_dev_xmit() runs from BH context, so we must disable BH from other l2tp_xmit_skb() users. [ 452.060011] BUG: soft lockup - CPU#1 stuck for 23s! [accel-pppd:6662] [ 452.061757] Modules linked in: l2tp_ppp l2tp_netlink l2tp_core pppoe pppox ppp_generic slhc ipv6 ext3 mbcache jbd virtio_balloon xfs exportfs dm_mod virtio_blk ata_generic virtio_net floppy ata_piix libata virtio_pci virtio_ring virtio [last unloaded: scsi_wait_scan] [ 452.064012] CPU 1 [ 452.080015] BUG: soft lockup - CPU#2 stuck for 23s! [accel-pppd:6643] [ 452.080015] CPU 2 [ 452.080015] [ 452.080015] Pid: 6643, comm: accel-pppd Not tainted 3.2.46.mini #1 Bochs Bochs [ 452.080015] RIP: 0010:[<ffffffff81059f6c>] [<ffffffff81059f6c>] do_raw_spin_lock+0x17/0x1f [ 452.080015] RSP: 0018:ffff88007125fc18 EFLAGS: 00000293 [ 452.080015] RAX: 000000000000aba9 RBX: ffffffff811d0703 RCX: 0000000000000000 [ 452.080015] RDX: 00000000000000ab RSI: ffff8800711f6896 RDI: ffff8800745c8110 [ 452.080015] RBP: ffff88007125fc18 R08: 0000000000000020 R09: 0000000000000000 [ 452.080015] R10: 0000000000000000 R11: 0000000000000280 R12: 0000000000000286 [ 452.080015] R13: 0000000000000020 R14: 0000000000000240 R15: 0000000000000000 [ 452.080015] FS: 00007fdc0cc24700(0000) GS:ffff8800b6f00000(0000) knlGS:0000000000000000 [ 452.080015] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 452.080015] CR2: 00007fdb054899b8 CR3: 0000000074404000 CR4: 00000000000006a0 [ 452.080015] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 452.080015] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 452.080015] Process accel-pppd (pid: 6643, threadinfo ffff88007125e000, task ffff8800b27e6dd0) [ 452.080015] Stack: [ 452.080015] ffff88007125fc28 ffffffff81256559 ffff88007125fc98 ffffffffa01b2bd1 [ 452.080015] ffff88007125fc58 000000000000000c 00000000029490d0 0000009c71dbe25e [ 452.080015] 000000000000005c 000000080000000e 0000000000000000 ffff880071170600 [ 452.080015] Call Trace: [ 452.080015] [<ffffffff81256559>] _raw_spin_lock+0xe/0x10 [ 452.080015] [<ffffffffa01b2bd1>] l2tp_xmit_skb+0x189/0x4ac [l2tp_core] [ 452.080015] [<ffffffffa01c2d36>] pppol2tp_sendmsg+0x15e/0x19c [l2tp_ppp] [ 452.080015] [<ffffffff811c7872>] __sock_sendmsg_nosec+0x22/0x24 [ 452.080015] [<ffffffff811c83bd>] sock_sendmsg+0xa1/0xb6 [ 452.080015] [<ffffffff81254e88>] ? __schedule+0x5c1/0x616 [ 452.080015] [<ffffffff8103c7c6>] ? __dequeue_signal+0xb7/0x10c [ 452.080015] [<ffffffff810bbd21>] ? fget_light+0x75/0x89 [ 452.080015] [<ffffffff811c8444>] ? sockfd_lookup_light+0x20/0x56 [ 452.080015] [<ffffffff811c9b34>] sys_sendto+0x10c/0x13b [ 452.080015] [<ffffffff8125cac2>] system_call_fastpath+0x16/0x1b [ 452.080015] Code: 81 48 89 e5 72 0c 31 c0 48 81 ff 45 66 25 81 0f 92 c0 5d c3 55 b8 00 01 00 00 48 89 e5 f0 66 0f c1 07 0f b6 d4 38 d0 74 06 f3 90 <8a> 07 eb f6 5d c3 90 90 55 48 89 e5 9c 58 0f 1f 44 00 00 5d c3 [ 452.080015] Call Trace: [ 452.080015] [<ffffffff81256559>] _raw_spin_lock+0xe/0x10 [ 452.080015] [<ffffffffa01b2bd1>] l2tp_xmit_skb+0x189/0x4ac [l2tp_core] [ 452.080015] [<ffffffffa01c2d36>] pppol2tp_sendmsg+0x15e/0x19c [l2tp_ppp] [ 452.080015] [<ffffffff811c7872>] __sock_sendmsg_nosec+0x22/0x24 [ 452.080015] [<ffffffff811c83bd>] sock_sendmsg+0xa1/0xb6 [ 452.080015] [<ffffffff81254e88>] ? __schedule+0x5c1/0x616 [ 452.080015] [<ffffffff8103c7c6>] ? __dequeue_signal+0xb7/0x10c [ 452.080015] [<ffffffff810bbd21>] ? fget_light+0x75/0x89 [ 452.080015] [<ffffffff811c8444>] ? sockfd_lookup_light+0x20/0x56 [ 452.080015] [<ffffffff811c9b34>] sys_sendto+0x10c/0x13b [ 452.080015] [<ffffffff8125cac2>] system_call_fastpath+0x16/0x1b [ 452.064012] [ 452.064012] Pid: 6662, comm: accel-pppd Not tainted 3.2.46.mini #1 Bochs Bochs [ 452.064012] RIP: 0010:[<ffffffff81059f6e>] [<ffffffff81059f6e>] do_raw_spin_lock+0x19/0x1f [ 452.064012] RSP: 0018:ffff8800b6e83ba0 EFLAGS: 00000297 [ 452.064012] RAX: 000000000000aaa9 RBX: ffff8800b6e83b40 RCX: 0000000000000002 [ 452.064012] RDX: 00000000000000aa RSI: 000000000000000a RDI: ffff8800745c8110 [ 452.064012] RBP: ffff8800b6e83ba0 R08: 000000000000c802 R09: 000000000000001c [ 452.064012] R10: ffff880071096c4e R11: 0000000000000006 R12: ffff8800b6e83b18 [ 452.064012] R13: ffffffff8125d51e R14: ffff8800b6e83ba0 R15: ffff880072a589c0 [ 452.064012] FS: 00007fdc0b81e700(0000) GS:ffff8800b6e80000(0000) knlGS:0000000000000000 [ 452.064012] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 452.064012] CR2: 0000000000625208 CR3: 0000000074404000 CR4: 00000000000006a0 [ 452.064012] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 452.064012] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 452.064012] Process accel-pppd (pid: 6662, threadinfo ffff88007129a000, task ffff8800744f7410) [ 452.064012] Stack: [ 452.064012] ffff8800b6e83bb0 ffffffff81256559 ffff8800b6e83bc0 ffffffff8121c64a [ 452.064012] ffff8800b6e83bf0 ffffffff8121ec7a ffff880072a589c0 ffff880071096c62 [ 452.064012] 0000000000000011 ffffffff81430024 ffff8800b6e83c80 ffffffff8121f276 [ 452.064012] Call Trace: [ 452.064012] <IRQ> [ 452.064012] [<ffffffff81256559>] _raw_spin_lock+0xe/0x10 [ 452.064012] [<ffffffff8121c64a>] spin_lock+0x9/0xb [ 452.064012] [<ffffffff8121ec7a>] udp_queue_rcv_skb+0x186/0x269 [ 452.064012] [<ffffffff8121f276>] __udp4_lib_rcv+0x297/0x4ae [ 452.064012] [<ffffffff8121c178>] ? raw_rcv+0xe9/0xf0 [ 452.064012] [<ffffffff8121f4a7>] udp_rcv+0x1a/0x1c [ 452.064012] [<ffffffff811fe385>] ip_local_deliver_finish+0x12b/0x1a5 [ 452.064012] [<ffffffff811fe54e>] ip_local_deliver+0x53/0x84 [ 452.064012] [<ffffffff811fe1d0>] ip_rcv_finish+0x2bc/0x2f3 [ 452.064012] [<ffffffff811fe78f>] ip_rcv+0x210/0x269 [ 452.064012] [<ffffffff8101911e>] ? kvm_clock_get_cycles+0x9/0xb [ 452.064012] [<ffffffff811d88cd>] __netif_receive_skb+0x3a5/0x3f7 [ 452.064012] [<ffffffff811d8eba>] netif_receive_skb+0x57/0x5e [ 452.064012] [<ffffffff811cf30f>] ? __netdev_alloc_skb+0x1f/0x3b [ 452.064012] [<ffffffffa0049126>] virtnet_poll+0x4ba/0x5a4 [virtio_net] [ 452.064012] [<ffffffff811d9417>] net_rx_action+0x73/0x184 [ 452.064012] [<ffffffffa01b2cc2>] ? l2tp_xmit_skb+0x27a/0x4ac [l2tp_core] [ 452.064012] [<ffffffff810343b9>] __do_softirq+0xc3/0x1a8 [ 452.064012] [<ffffffff81013b56>] ? ack_APIC_irq+0x10/0x12 [ 452.064012] [<ffffffff81256559>] ? _raw_spin_lock+0xe/0x10 [ 452.064012] [<ffffffff8125e0ac>] call_softirq+0x1c/0x26 [ 452.064012] [<ffffffff81003587>] do_softirq+0x45/0x82 [ 452.064012] [<ffffffff81034667>] irq_exit+0x42/0x9c [ 452.064012] [<ffffffff8125e146>] do_IRQ+0x8e/0xa5 [ 452.064012] [<ffffffff8125676e>] common_interrupt+0x6e/0x6e [ 452.064012] <EOI> [ 452.064012] [<ffffffff810b82a1>] ? kfree+0x8a/0xa3 [ 452.064012] [<ffffffffa01b2cc2>] ? l2tp_xmit_skb+0x27a/0x4ac [l2tp_core] [ 452.064012] [<ffffffffa01b2c25>] ? l2tp_xmit_skb+0x1dd/0x4ac [l2tp_core] [ 452.064012] [<ffffffffa01c2d36>] pppol2tp_sendmsg+0x15e/0x19c [l2tp_ppp] [ 452.064012] [<ffffffff811c7872>] __sock_sendmsg_nosec+0x22/0x24 [ 452.064012] [<ffffffff811c83bd>] sock_sendmsg+0xa1/0xb6 [ 452.064012] [<ffffffff81254e88>] ? __schedule+0x5c1/0x616 [ 452.064012] [<ffffffff8103c7c6>] ? __dequeue_signal+0xb7/0x10c [ 452.064012] [<ffffffff810bbd21>] ? fget_light+0x75/0x89 [ 452.064012] [<ffffffff811c8444>] ? sockfd_lookup_light+0x20/0x56 [ 452.064012] [<ffffffff811c9b34>] sys_sendto+0x10c/0x13b [ 452.064012] [<ffffffff8125cac2>] system_call_fastpath+0x16/0x1b [ 452.064012] Code: 89 e5 72 0c 31 c0 48 81 ff 45 66 25 81 0f 92 c0 5d c3 55 b8 00 01 00 00 48 89 e5 f0 66 0f c1 07 0f b6 d4 38 d0 74 06 f3 90 8a 07 <eb> f6 5d c3 90 90 55 48 89 e5 9c 58 0f 1f 44 00 00 5d c3 55 48 [ 452.064012] Call Trace: [ 452.064012] <IRQ> [<ffffffff81256559>] _raw_spin_lock+0xe/0x10 [ 452.064012] [<ffffffff8121c64a>] spin_lock+0x9/0xb [ 452.064012] [<ffffffff8121ec7a>] udp_queue_rcv_skb+0x186/0x269 [ 452.064012] [<ffffffff8121f276>] __udp4_lib_rcv+0x297/0x4ae [ 452.064012] [<ffffffff8121c178>] ? raw_rcv+0xe9/0xf0 [ 452.064012] [<ffffffff8121f4a7>] udp_rcv+0x1a/0x1c [ 452.064012] [<ffffffff811fe385>] ip_local_deliver_finish+0x12b/0x1a5 [ 452.064012] [<ffffffff811fe54e>] ip_local_deliver+0x53/0x84 [ 452.064012] [<ffffffff811fe1d0>] ip_rcv_finish+0x2bc/0x2f3 [ 452.064012] [<ffffffff811fe78f>] ip_rcv+0x210/0x269 [ 452.064012] [<ffffffff8101911e>] ? kvm_clock_get_cycles+0x9/0xb [ 452.064012] [<ffffffff811d88cd>] __netif_receive_skb+0x3a5/0x3f7 [ 452.064012] [<ffffffff811d8eba>] netif_receive_skb+0x57/0x5e [ 452.064012] [<ffffffff811cf30f>] ? __netdev_alloc_skb+0x1f/0x3b [ 452.064012] [<ffffffffa0049126>] virtnet_poll+0x4ba/0x5a4 [virtio_net] [ 452.064012] [<ffffffff811d9417>] net_rx_action+0x73/0x184 [ 452.064012] [<ffffffffa01b2cc2>] ? l2tp_xmit_skb+0x27a/0x4ac [l2tp_core] [ 452.064012] [<ffffffff810343b9>] __do_softirq+0xc3/0x1a8 [ 452.064012] [<ffffffff81013b56>] ? ack_APIC_irq+0x10/0x12 [ 452.064012] [<ffffffff81256559>] ? _raw_spin_lock+0xe/0x10 [ 452.064012] [<ffffffff8125e0ac>] call_softirq+0x1c/0x26 [ 452.064012] [<ffffffff81003587>] do_softirq+0x45/0x82 [ 452.064012] [<ffffffff81034667>] irq_exit+0x42/0x9c [ 452.064012] [<ffffffff8125e146>] do_IRQ+0x8e/0xa5 [ 452.064012] [<ffffffff8125676e>] common_interrupt+0x6e/0x6e [ 452.064012] <EOI> [<ffffffff810b82a1>] ? kfree+0x8a/0xa3 [ 452.064012] [<ffffffffa01b2cc2>] ? l2tp_xmit_skb+0x27a/0x4ac [l2tp_core] [ 452.064012] [<ffffffffa01b2c25>] ? l2tp_xmit_skb+0x1dd/0x4ac [l2tp_core] [ 452.064012] [<ffffffffa01c2d36>] pppol2tp_sendmsg+0x15e/0x19c [l2tp_ppp] [ 452.064012] [<ffffffff811c7872>] __sock_sendmsg_nosec+0x22/0x24 [ 452.064012] [<ffffffff811c83bd>] sock_sendmsg+0xa1/0xb6 [ 452.064012] [<ffffffff81254e88>] ? __schedule+0x5c1/0x616 [ 452.064012] [<ffffffff8103c7c6>] ? __dequeue_signal+0xb7/0x10c [ 452.064012] [<ffffffff810bbd21>] ? fget_light+0x75/0x89 [ 452.064012] [<ffffffff811c8444>] ? sockfd_lookup_light+0x20/0x56 [ 452.064012] [<ffffffff811c9b34>] sys_sendto+0x10c/0x13b [ 452.064012] [<ffffffff8125cac2>] system_call_fastpath+0x16/0x1b Reported-by: François Cachereul <f.cachereul@alphalink.fr> Tested-by: François Cachereul <f.cachereul@alphalink.fr> Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: James Chapman <jchapman@katalix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-11net: sh_eth: Correct fix for RX packet errors on R8A7740Simon Horman
Nguyen Hong Ky posted a patch to correct RX packet errors on R8A7740 which was applied as 2c6221e4a5aab417 ("net: sh_eth: Fix RX packets errors on R8A7740"). Unfortunately sh_eth.c contains many similar instances of struct sh_eth_cpu_data and the patch was miss-applied, updating sh7734_data instead of r8a7740_data. This patch corrects this problem by. 1. Reverting the change to sh7734_data and; 2. Applying the change to r8a7740_data. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-11vti: get rid of nf mark rule in preroutingChristophe Gouault
This patch fixes and improves the use of vti interfaces (while lightly changing the way of configuring them). Currently: - it is necessary to identify and mark inbound IPsec packets destined to each vti interface, via netfilter rules in the mangle table at prerouting hook. - the vti module cannot retrieve the right tunnel in input since commit b9959fd3: vti tunnels all have an i_key, but the tunnel lookup is done with flag TUNNEL_NO_KEY, so there no chance to retrieve them. - the i_key is used by the outbound processing as a mark to lookup for the right SP and SA bundle. This patch uses the o_key to store the vti mark (instead of i_key) and enables: - to avoid the need for previously marking the inbound skbuffs via a netfilter rule. - to properly retrieve the right tunnel in input, only based on the IPsec packet outer addresses. - to properly perform an inbound policy check (using the tunnel o_key as a mark). - to properly perform an outbound SPD and SAD lookup (using the tunnel o_key as a mark). - to keep the current mark of the skbuff. The skbuff mark is neither used nor changed by the vti interface. Only the vti interface o_key is used. SAs have a wildcard mark. SPs have a mark equal to the vti interface o_key. The vti interface must be created as follows (i_key = 0, o_key = mark): ip link add vti1 mode vti local 1.1.1.1 remote 2.2.2.2 okey 1 The SPs attached to vti1 must be created as follows (mark = vti1 o_key): ip xfrm policy add dir out mark 1 tmpl src 1.1.1.1 dst 2.2.2.2 \ proto esp mode tunnel ip xfrm policy add dir in mark 1 tmpl src 2.2.2.2 dst 1.1.1.1 \ proto esp mode tunnel The SAs are created with the default wildcard mark. There is no distinction between global vs. vti SAs. Just their addresses will possibly link them to a vti interface: ip xfrm state add src 1.1.1.1 dst 2.2.2.2 proto esp spi 1000 mode tunnel \ enc "cbc(aes)" "azertyuiopqsdfgh" ip xfrm state add src 2.2.2.2 dst 1.1.1.1 proto esp spi 2000 mode tunnel \ enc "cbc(aes)" "sqbdhgqsdjqjsdfh" To avoid matching "global" (not vti) SPs in vti interfaces, global SPs should no use the default wildcard mark, but explicitly match mark 0. To avoid a double SPD lookup in input and output (in global and vti SPDs), the NOPOLICY and NOXFRM options should be set on the vti interfaces: echo 1 > /proc/sys/net/ipv4/conf/vti1/disable_policy echo 1 > /proc/sys/net/ipv4/conf/vti1/disable_xfrm The outgoing traffic is steered to vti1 by a route via the vti interface: ip route add 192.168.0.0/16 dev vti1 The incoming IPsec traffic is steered to vti1 because its outer addresses match the vti1 tunnel configuration. Signed-off-by: Christophe Gouault <christophe.gouault@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-11bridge: update mdb expiration timer upon reports.Vlad Yasevich
commit 9f00b2e7cf241fa389733d41b615efdaa2cb0f5b bridge: only expire the mdb entry when query is received changed the mdb expiration timer to be armed only when QUERY is received. Howerver, this causes issues in an environment where the multicast server socket comes and goes very fast while a client is trying to send traffic to it. The root cause is a race where a sequence of LEAVE followed by REPORT messages can race against QUERY messages generated in response to LEAVE. The QUERY ends up starting the expiration timer, and that timer can potentially expire after the new REPORT message has been received signaling the new join operation. This leads to a significant drop in multicast traffic and possible complete stall. The solution is to have REPORT messages update the expiration timer on entries that already exist. CC: Cong Wang <xiyou.wangcong@gmail.com> CC: Herbert Xu <herbert@gondor.apana.org.au> CC: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Vlad Yasevich <vyasevic@redhat.com> Acked-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-09can: at91-can: fix device to driver data mapping for platform devicesMarc Kleine-Budde
In commit: 3078cde7 can: at91_can: add dt support device tree support was added to the at91_can driver. In this commit the mapping of device to driver data was mixed up. This results in the sam9x5 parameters being used for the sam9263 and the workaround for the broken mailbox 0 on the sam9263 not being activated. This patch fixes the broken platform_device_id table. Cc: linux-stable <stable@vger.kernel.org> Cc: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2013-10-09can: flexcan: fix mx28 detection by rearanging OF match tableMarc Kleine-Budde
The current implemetation of of_match_device() relies that the of_device_id table in the driver is sorted from most specific to least specific compatible. Without this patch the mx28 is detected as the less specific p1010. This leads to a p1010 specific workaround is activated on the mx28, which is not needed. Cc: linux-stable <stable@vger.kernel.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2013-10-09can: flexcan: flexcan_chip_start: fix regression, mark one MB for TX and ↵Marc Kleine-Budde
abort pending TX In patch 0d1862e can: flexcan: fix flexcan_chip_start() on imx6 the loop in flexcan_chip_start() that iterates over all mailboxes after the soft reset of the CAN core was removed. This loop put all mailboxes (even the ones marked as reserved 1...7) into EMPTY/INACTIVE mode. On mailboxes 8...63, this aborts any pending TX messages. After a cold boot there is random garbage in the mailboxes, which leads to spontaneous transmit of CAN frames during first activation. Further if the interface was disabled with a pending message (usually due to an error condition on the CAN bus), this message is retransmitted after enabling the interface again. This patch fixes the regression by: 1) Limiting the maximum number of used mailboxes to 8, 0...7 are used by the RX FIFO, 8 is used by TX. 2) Marking the TX mailbox as EMPTY/INACTIVE, so that any pending TX of that mailbox is aborted. Cc: linux-stable <stable@vger.kernel.org> Cc: Lothar Waßmann <LW@KARO-electronics.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2013-10-09Merge branch 'for-davem' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless John W. Linville says: =================== Please pull this batch of fixes intended for 3.12... Most of the bits are for iwlwifi -- Johannes says: "I have a fix for WoWLAN/D3, a PCIe device fix, we're removing a warning, there's a fix for RF-kill while scanning (which goes together with a mac80211 fix) and last but not least we have many new PCI IDs." Also for iwlwifi is a patch from Johannes to correct some merge damage that crept into the tree before the last merge window. On top of that, Felix Fietkau sends an ath9k patch to avoid a Tx scheduling hang when changing channels to do a scan. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-09Merge branch 'gianfar'David S. Miller
Merge in gianfar driver bug fixes from Claudiu Manoil. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-09gianfar: Enable eTSEC-20 erratum w/a for P2020 Rev1Claudiu Manoil
Enable workaround for P2020/P2010 erratum eTSEC 20, "Excess delays when transmitting TOE=1 large frames". The impact is that frames lager than 2500-bytes for which TOE (i.e. TCP/IP hw accelerations like Tx csum) is enabled may see excess delay before start of transmission. This erratum was fixed in Rev 2.0. Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-09gianfar: Use mpc85xx support for errata detectionClaudiu Manoil
Use the macros and defines from mpc85xx.h to simplify and prevent errors in identifying a mpc85xx based SoC for errata detection. This should help enabling (and identifying) workarounds for various mpc85xx based chips and revisions. For instance, express MPC8548 Rev.2 as: (SVR_SOC_VER(svr) == SVR_8548) && (SVR_REV(svr) == 0x20) instead of: (pvr == 0x80210020 && mod == 0x8030 && rev == 0x0020) Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-09gianfar: Enable eTSEC-A002 erratum w/a for all partsClaudiu Manoil
A002 is still in "no plans to fix" state, and applies to all the current P1/P2 parts as well, so it's resonable to enable its workaround by default, for all the soc's with etsec. The impact of not enabling this workaround for affected parts is that under certain conditons (runt frames or even frames with RX error detected at PHY level) during controller reset, the controller might fail to indicate Rx reset (GRS) completion. Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-09Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec Steffen Klassert says: ==================== 1) We used the wrong netlink attribute to verify the lenght of the replay window on async events. Fix this by using the right netlink attribute. 2) Policy lookups can not match the output interface on forwarding. Add the needed informations to the flow informations. 3) We update the pmtu when we receive a ICMPV6_DEST_UNREACH message on IPsec with ipv6. This is wrong and leads to strange fragmented packets, only ICMPV6_PKT_TOOBIG messages should update the pmtu. Fix this by removing the ICMPV6_DEST_UNREACH check from the IPsec protocol error handlers. 4) The legacy IPsec anti replay mechanism supports anti replay windows up to 32 packets. If a user requests for a bigger anti replay window, we use 32 packets but pretend that we use the requested window size. Fix from Fan Du. 5) If asynchronous events are enabled and replay_maxdiff is set to zero, we generate an async event for every received packet instead of checking whether a timeout occurred. Fix from Thomas Egerer. 6) Policies need a refcount when the state resolution timer is armed. Otherwise the timer can fire after the policy is deleted. 7) We might dreference a NULL pointer if the hold_queue is empty, add a check to avoid this. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-09net: secure_seq: Fix warning when CONFIG_IPV6 and CONFIG_INET are not selectedFabio Estevam
net_secret() is only used when CONFIG_IPV6 or CONFIG_INET are selected. Building a defconfig with both of these symbols unselected (Using the ARM at91sam9rl_defconfig, for example) leads to the following build warning: $ make at91sam9rl_defconfig # # configuration written to .config # $ make net/core/secure_seq.o scripts/kconfig/conf --silentoldconfig Kconfig CHK include/config/kernel.release CHK include/generated/uapi/linux/version.h CHK include/generated/utsrelease.h make[1]: `include/generated/mach-types.h' is up to date. CALL scripts/checksyscalls.sh CC net/core/secure_seq.o net/core/secure_seq.c:17:13: warning: 'net_secret_init' defined but not used [-Wunused-function] Fix this warning by protecting the definition of net_secret() with these symbols. Reported-by: Olof Johansson <olof@lixom.net> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-09Merge branch 'master' of ↵John W. Linville
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem
2013-10-08Merge branch 'sfc-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/bwh/sfcDavid S. Miller
Ben Hutchings says: ==================== Some more fixes for EF10 support; hopefully the last lot: 1. Fixes for reading statistics, from Edward Cree and Jon Cooper. 2. Addition of ethtool statistics for packets dropped by the hardware before they were associated with a specific function, from Edward Cree. 3. Only bind to functions that are in control of their associated port, as the driver currently assumes this is the case. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-08pkt_sched: fq: fix non TCP flows pacingEric Dumazet
Steinar reported FQ pacing was not working for UDP flows. It looks like the initial sk->sk_pacing_rate value of 0 was a wrong choice. We should init it to ~0U (unlimited) Then, TCA_FQ_FLOW_DEFAULT_RATE should be removed because it makes no real sense. The default rate is really unlimited, and we need to avoid a zero divide. Reported-by: Steinar H. Gunderson <sesse@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-08qlcnic: add missing destroy_workqueue() on error path in qlcnic_probe()Wei Yongjun
Add the missing destroy_workqueue() before return from qlcnic_probe() in the error handling case. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-08moxa: fix the error handling in moxart_mac_probe()Wei Yongjun
This patch fix the error handling in moxart_mac_probe(): - return -ENOMEM in some memory alloc fail cases - add missing free_netdev() in the error handling case Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-08net: vlan: fix nlmsg size calculation in vlan_get_size()Marc Kleine-Budde
This patch fixes the calculation of the nlmsg size, by adding the missing nla_total_size(). Cc: Patrick McHardy <kaber@trash.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-08pkt_sched: fq: fix typo for initial_quantumEric Dumazet
TCA_FQ_INITIAL_QUANTUM should set q->initial_quantum Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-08ipv6: Fix the upper MTU limit in GRE tunnelOussama Ghorbel
Unlike ipv4, the struct member hlen holds the length of the GRE and ipv6 headers. This length is also counted in dev->hard_header_len. Perhaps, it's more clean to modify the hlen to count only the GRE header without ipv6 header as the variable name suggest, but the simple way to fix this without regression risk is simply modify the calculation of the limit in ip6gre_tunnel_change_mtu function. Verified in kernel version v3.11. Signed-off-by: Oussama Ghorbel <ou.ghorbel@gmail.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-08xen-netback: transition to CLOSED when removing a VIFDavid Vrabel
If a guest is destroyed without transitioning its frontend to CLOSED, the domain becomes a zombie as netback was not grant unmapping the shared rings. When removing a VIF, transition the backend to CLOSED so the VIF is disconnected if necessary (which will unmap the shared rings etc). This fixes a regression introduced by 279f438e36c0a70b23b86d2090aeec50155034a9 (xen-netback: Don't destroy the netdev until the vif is shut down). Signed-off-by: David Vrabel <david.vrabel@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Cc: Paul Durrant <Paul.Durrant@citrix.com> Acked-by: Wei Liu <wei.liu2@citrix.com> Reviewed-by: Paul Durrant <paul.durrant@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-08Merge branch 'mlx4'David S. Miller
Amir Vadai says: ==================== net/mlx4_en: Fix pages never dma unmapped on rx This patchset fixes a bug introduced by commit 51151a16 (mlx4: allow order-0 memory allocations in RX path). Where dma_unmap_page wasn't called. Changes from V0: - Added "Rename name of mlx4_en_rx_alloc members". Old names were confusing. - Last frag in page calculation was wrong. Since all frags in page are of the same size, need to add this frag_stride to end of frag offset, and not the size of next frag in skb. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-08net/mlx4_en: Fix pages never dma unmapped on rxAmir Vadai
This patch fixes a bug introduced by commit 51151a16 (mlx4: allow order-0 memory allocations in RX path). dma_unmap_page never reached because condition to detect last fragment in page is wrong. offset+frag_stride can't be greater than size, need to make sure no additional frag will fit in page => compare offset + frag_stride + next_frag_size instead. next_frag_size is the same as the current one, since page is shared only with frags of the same size. CC: Eric Dumazet <edumazet@google.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-08net/mlx4_en: Rename name of mlx4_en_rx_alloc membersAmir Vadai
Add page prefix to page related members: @size and @offset into @page_size and @page_offset CC: Eric Dumazet <edumazet@google.com> Signed-off-by: Amir Vadai <amirv@mellanox.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-08net: sh_eth: Fix RX packets errors on R8A7740Nguyen Hong Ky
This patch will fix RX packets errors when receiving big size of data by set bit RNC = 1. RNC - Receive Enable Control 0: Upon completion of reception of one frame, the E-DMAC writes the receive status to the descriptor and clears the RR bit in EDRRR to 0. 1: Upon completion of reception of one frame, the E-DMAC writes (writes back) the receive status to the descriptor. In addition, the E-DMAC reads the next descriptor and prepares for reception of the next frame. In addition, for get more stable when receiving packets, I set maximum size for the transmit/receive FIFO and inserts padding in receive data. Signed-off-by: Nguyen Hong Ky <nh-ky@jinso.co.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-08l2tp: Fix build warning with ipv6 disabled.David S. Miller
net/l2tp/l2tp_core.c: In function ‘l2tp_verify_udp_checksum’: net/l2tp/l2tp_core.c:499:22: warning: unused variable ‘tunnel’ [-Wunused-variable] Create a helper "l2tp_tunnel()" to facilitate this, and as a side effect get rid of a bunch of unnecessary void pointer casts. Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-08tun: don't look at current when non-blockingMichael S. Tsirkin
We play with a wait queue even if socket is non blocking. This is an obvious waste. Besides, it will prevent calling the non blocking variant when current is not valid. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-08Merge branch 'mrf24j40'David S. Miller
Alan Ott says: ==================== Fix race conditions in mrf24j40 interrupts After testing with the betas of this patchset, it's been rebased and is ready for inclusion. David Hauweele noticed that the mrf24j40 would hang arbitrarily after some period of heavy traffic. Two race conditions were discovered, and the driver was changed to use threaded interrupts, since the enable/disable of interrupts in the driver has recently been a lighning rod whenever issues arise related to interrupts (costing engineering time), and since threaded interrupts are the right way to do it. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-08mrf24j40: Use level-triggered interruptsAlan Ott
The mrf24j40 generates level interrupts. There are rare cases where it appears that the interrupt line never gets de-asserted between interrupts, causing interrupts to be lost, and causing a hung device from the driver's perspective. Switching the driver to interpret these interrupts as level-triggered fixes this issue. Signed-off-by: Alan Ott <alan@signal11.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-08mrf24j40: Use threaded IRQ handlerAlan Ott
Eliminate all the workqueue and interrupt enable/disable. Signed-off-by: Alan Ott <alan@signal11.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-08mrf24j40: Move INIT_COMPLETION() to before packet transmissionAlan Ott
This avoids a race condition where complete(tx_complete) could be called before tx_complete is initialized. Signed-off-by: Alan Ott <alan@signal11.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-08Merge branch '6lowpan'David S. Miller
Alan Ott says: ==================== Alexander Aring suggested that devices desired to be linked to 6lowpan be checked for actually being of type IEEE802154, since IEEE802154 devices are all that are supported by 6lowpan at present. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-086lowpan: Sync default hardware address of lowpan links to their wpanAlan Ott
When a lowpan link to a wpan device is created, set the hardware address of the lowpan link to that of the wpan device. Signed-off-by: Alan Ott <alan@signal11.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-086lowpan: Only make 6lowpan links to IEEE802154 devicesAlan Ott
Refuse to create 6lowpan links if the actual hardware interface is of any type other than ARPHRD_IEEE802154. Signed-off-by: Alan Ott <alan@signal11.us> Suggested-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-08xfrm: check for a vaild skb in xfrm_policy_queue_processSteffen Klassert
We might dreference a NULL pointer if the hold_queue is empty, so add a check to avoid this. Bug was introduced with git commit a0073fe18 ("xfrm: Add a state resolution packet queue") Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2013-10-08xfrm: Add refcount handling to queued policiesSteffen Klassert
We need to ensure that policies can't go away as long as the hold timer is armed, so take a refcont when we arm the timer and drop one if we delete it. Bug was introduced with git commit a0073fe18 ("xfrm: Add a state resolution packet queue") Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2013-10-07net: Update the sysctl permissions handler to test effective uid/gidEric W. Biederman
On Tue, 20 Aug 2013 11:40:04 -0500 Eric Sandeen <sandeen@redhat.com> wrote: > This was brought up in a Red Hat bug (which may be marked private, I'm sorry): > > Bug 987055 - open O_WRONLY succeeds on some root owned files in /proc for process running with unprivileged EUID > > "On RHEL7 some of the files in /proc can be opened for writing by an unprivileged EUID." > > The flaw existed upstream as well last I checked. > > This commit in kernel v3.8 caused the regression: > > commit cff109768b2d9c03095848f4cd4b0754117262aa > Author: Eric W. Biederman <ebiederm@xmission.com> > Date: Fri Nov 16 03:03:01 2012 +0000 > > net: Update the per network namespace sysctls to be available to the network namespace owner > > - Allow anyone with CAP_NET_ADMIN rights in the user namespace of the > the netowrk namespace to change sysctls. > - Allow anyone the uid of the user namespace root the same > permissions over the network namespace sysctls as the global root. > - Allow anyone with gid of the user namespace root group the same > permissions over the network namespace sysctl as the global root group. > > Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> > Signed-off-by: David S. Miller <davem@davemloft.net> > > because it changed /sys/net's special permission handler to test current_uid, not > current_euid; same for current_gid/current_egid. > > So in this case, root cannot drop privs via set[ug]id, and retains all privs > in this codepath. Modify the code to use current_euid(), and in_egroup_p, as in done in fs/proc/proc_sysctl.c:test_perm() Cc: stable@vger.kernel.org Reviewed-by: Eric Sandeen <sandeen@redhat.com> Reported-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-07can: dev: fix nlmsg size calculation in can_get_size()Marc Kleine-Budde
This patch fixes the calculation of the nlmsg size, by adding the missing nla_total_size(). Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-07ipv4: fix ineffective source address selectionJiri Benc
When sending out multicast messages, the source address in inet->mc_addr is ignored and rewritten by an autoselected one. This is caused by a typo in commit 813b3b5db831 ("ipv4: Use caller's on-stack flowi as-is in output route lookups"). Signed-off-by: Jiri Benc <jbenc@redhat.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-07net/ethernet: cpsw: DT read bool dual_emacMarkus Pargmann
Signed-off-by: Markus Pargmann <mpa@pengutronix.de> Acked-by: Mugunthan V N <mugunthanvnm@ti.com> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-07net: ethernet: cpsw: Search childs for slave nodesMarkus Pargmann
The current implementation searches the whole DT for nodes named "slave". This patch changes it to search only child nodes for slaves. Signed-off-by: Markus Pargmann <mpa@pengutronix.de> Acked-by: Mugunthan V N <mugunthanvnm@ti.com> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-07net: fix unsafe set_memory_rw from softirqAlexei Starovoitov
on x86 system with net.core.bpf_jit_enable = 1 sudo tcpdump -i eth1 'tcp port 22' causes the warning: [ 56.766097] Possible unsafe locking scenario: [ 56.766097] [ 56.780146] CPU0 [ 56.786807] ---- [ 56.793188] lock(&(&vb->lock)->rlock); [ 56.799593] <Interrupt> [ 56.805889] lock(&(&vb->lock)->rlock); [ 56.812266] [ 56.812266] *** DEADLOCK *** [ 56.812266] [ 56.830670] 1 lock held by ksoftirqd/1/13: [ 56.836838] #0: (rcu_read_lock){.+.+..}, at: [<ffffffff8118f44c>] vm_unmap_aliases+0x8c/0x380 [ 56.849757] [ 56.849757] stack backtrace: [ 56.862194] CPU: 1 PID: 13 Comm: ksoftirqd/1 Not tainted 3.12.0-rc3+ #45 [ 56.868721] Hardware name: System manufacturer System Product Name/P8Z77 WS, BIOS 3007 07/26/2012 [ 56.882004] ffffffff821944c0 ffff88080bbdb8c8 ffffffff8175a145 0000000000000007 [ 56.895630] ffff88080bbd5f40 ffff88080bbdb928 ffffffff81755b14 0000000000000001 [ 56.909313] ffff880800000001 ffff880800000000 ffffffff8101178f 0000000000000001 [ 56.923006] Call Trace: [ 56.929532] [<ffffffff8175a145>] dump_stack+0x55/0x76 [ 56.936067] [<ffffffff81755b14>] print_usage_bug+0x1f7/0x208 [ 56.942445] [<ffffffff8101178f>] ? save_stack_trace+0x2f/0x50 [ 56.948932] [<ffffffff810cc0a0>] ? check_usage_backwards+0x150/0x150 [ 56.955470] [<ffffffff810ccb52>] mark_lock+0x282/0x2c0 [ 56.961945] [<ffffffff810ccfed>] __lock_acquire+0x45d/0x1d50 [ 56.968474] [<ffffffff810cce6e>] ? __lock_acquire+0x2de/0x1d50 [ 56.975140] [<ffffffff81393bf5>] ? cpumask_next_and+0x55/0x90 [ 56.981942] [<ffffffff810cef72>] lock_acquire+0x92/0x1d0 [ 56.988745] [<ffffffff8118f52a>] ? vm_unmap_aliases+0x16a/0x380 [ 56.995619] [<ffffffff817628f1>] _raw_spin_lock+0x41/0x50 [ 57.002493] [<ffffffff8118f52a>] ? vm_unmap_aliases+0x16a/0x380 [ 57.009447] [<ffffffff8118f52a>] vm_unmap_aliases+0x16a/0x380 [ 57.016477] [<ffffffff8118f44c>] ? vm_unmap_aliases+0x8c/0x380 [ 57.023607] [<ffffffff810436b0>] change_page_attr_set_clr+0xc0/0x460 [ 57.030818] [<ffffffff810cfb8d>] ? trace_hardirqs_on+0xd/0x10 [ 57.037896] [<ffffffff811a8330>] ? kmem_cache_free+0xb0/0x2b0 [ 57.044789] [<ffffffff811b59c3>] ? free_object_rcu+0x93/0xa0 [ 57.051720] [<ffffffff81043d9f>] set_memory_rw+0x2f/0x40 [ 57.058727] [<ffffffff8104e17c>] bpf_jit_free+0x2c/0x40 [ 57.065577] [<ffffffff81642cba>] sk_filter_release_rcu+0x1a/0x30 [ 57.072338] [<ffffffff811108e2>] rcu_process_callbacks+0x202/0x7c0 [ 57.078962] [<ffffffff81057f17>] __do_softirq+0xf7/0x3f0 [ 57.085373] [<ffffffff81058245>] run_ksoftirqd+0x35/0x70 cannot reuse jited filter memory, since it's readonly, so use original bpf insns memory to hold work_struct defer kfree of sk_filter until jit completed freeing tested on x86_64 and i386 Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-10-07sfc: Only bind to EF10 functions with the LinkCtrl and Trusted flagsBen Hutchings
Although we do not yet enable multiple PFs per port, it is possible that a board will be reconfigured to enable them while the driver has not yet been updated to fully support this. The most obvious problem is that multiple functions may try to set conflicting link settings. But we will also run into trouble if the firmware doesn't consider us fully trusted. So, abort probing unless both the LinkCtrl and Trusted flags are set for this function. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2013-10-07iwlwifi: pcie: fix merge damageJohannes Berg
The merge b35c8097 seems to have lost commit eabc4ac5d, put the code back. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-06 08:34:31 +0000