- 18 Oct, 2014 16 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Pull networking fixes from David Miller: 1) Include fixes for netrom and dsa (Fabian Frederick and Florian Fainelli) 2) Fix FIXED_PHY support in stmmac, from Giuseppe CAVALLARO. 3) Several SKB use after free fixes (vxlan, openvswitch, vxlan, ip_tunnel, fou), from Li ROngQing. 4) fec driver PTP support fixes from Luwei Zhou and Nimrod Andy. 5) Use after free in virtio_net, from Michael S Tsirkin. 6) Fix flow mask handling for megaflows in openvswitch, from Pravin B Shelar. 7) ISDN gigaset and capi bug fixes from Tilman Schmidt. 8) Fix route leak in ip_send_unicast_reply(), from Vasily Averin. 9) Fix two eBPF JIT bugs on x86, from Alexei Starovoitov. 10) TCP_SKB_CB() reorganization caused a few regressions, fixed by Cong Wang and Eric Dumazet. 11) Don't overwrite end of SKB when parsing malformed sctp ASCONF chunks, from Daniel Borkmann. 12) Don't call sock_kfree_s() with NULL pointers, this function also has the side effect of adjusting the socket memory usage. From Cong Wang. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (90 commits) bna: fix skb->truesize underestimation net: dsa: add includes for ethtool and phy_fixed definitions openvswitch: Set flow-key members. netrom: use linux/uaccess.h dsa: Fix conversion from host device to mii bus tipc: fix bug in bundled buffer reception ipv6: introduce tcp_v6_iif() sfc: add support for skb->xmit_more r8152: return -EBUSY for runtime suspend ipv4: fix a potential use after free in fou.c ipv4: fix a potential use after free in ip_tunnel_core.c hyperv: Add handling of IP header with option field in netvsc_set_hash() openvswitch: Create right mask with disabled megaflows vxlan: fix a free after use openvswitch: fix a use after free ipv4: dst_entry leak in ip_send_unicast_reply() ipv4: clean up cookie_v4_check() ipv4: share tcp_v4_save_options() with cookie_v4_check() ipv4: call __ip_options_echo() in cookie_v4_check() atm: simplify lanai.c by using module_pci_driver ...
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds authored
Pull Sparc bugfix from David Miller: "Sparc64 AES ctr mode bug fix" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: sparc64: Fix FPU register corruption with AES crypto offload.
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/ideLinus Torvalds authored
Pull IDE cleanup from David Miller: "One IDE driver cleanup" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide: Drivers: ide: Remove typedef atiixp_ide_timing
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Catalin Marinas authored
Commit b0c29f79 (futexes: Avoid taking the hb->lock if there's nothing to wake up) changes the futex code to avoid taking a lock when there are no waiters. This code has been subsequently fixed in commit 11d4616b (futex: revert back to the explicit waiter counting code). Both the original commit and the fix-up rely on get_futex_key_refs() to always imply a barrier. However, for private futexes, none of the cases in the switch statement of get_futex_key_refs() would be hit and the function completes without a memory barrier as required before checking the "waiters" in futex_wake() -> hb_waiters_pending(). The consequence is a race with a thread waiting on a futex on another CPU, allowing the waker thread to read "waiters == 0" while the waiter thread to have read "futex_val == locked" (in kernel). Without this fix, the problem (user space deadlocks) can be seen with Android bionic's mutex implementation on an arm64 multi-cluster system. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Reported-by: Matteo Franchin <Matteo.Franchin@arm.com> Fixes: b0c29f79 (futexes: Avoid taking the hb->lock if there's nothing to wake up) Acked-by: Davidlohr Bueso <dave@stgolabs.net> Tested-by: Mike Galbraith <umgwanakikbuti@gmail.com> Cc: <stable@vger.kernel.org> Cc: Darren Hart <dvhart@linux.intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Eric Dumazet authored
skb->truesize is not meant to be tracking amount of used bytes in an skb, but amount of reserved/consumed bytes in memory. For instance, if we use a single byte in last page fragment, we have to account the full size of the fragment. skb->truesize can be very different from skb->len, that has a very specific safety purpose. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Rasesh Mody <rasesh.mody@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Florian Fainelli authored
net/dsa/slave.c uses functions and structures declared in phy_fixed.h but does not explicitely include it, while dsa.h needs structure declarations for 'struct ethtool_wolinfo' and 'struct ethtool_eee', fix those by including the correct header files. Fixes: ec9436ba ("net: dsa: allow drivers to do link adjustment") Fixes: ce31b31c ("net: dsa: allow updating fixed PHY link information") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Pravin B Shelar authored
This patch adds missing memset which are required to initialize flow key member. For example for IP flow we need to initialize ip.frag for all cases. Found by inspection. This bug is introduced by commit 07148121 ("openvswitch: Eliminate memset() from flow_extract"). Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Fabian Frederick authored
replace asm/uaccess.h by linux/uaccess.h Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: David S. Miller <davem@davemloft.net>
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Guenter Roeck authored
Commit b4d2394d ("dsa: Replace mii_bus with a generic host device") replaces mii_bus with a generic host_dev, and introduces dsa_host_dev_to_mii_bus() to support conversion from host_dev to mii_bus. However, in some cases it uses to_mii_bus to perform that conversion. Since host_dev is not the phy bus device but typically a platform device, this fails and results in a crash with the affected drivers. BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff81781d35>] __mutex_lock_slowpath+0x75/0x100 PGD 406783067 PUD 406784067 PMD 0 Oops: 0002 [#1] SMP ... Call Trace: [<ffffffff810a538b>] ? pick_next_task_fair+0x61b/0x880 [<ffffffff81781de3>] mutex_lock+0x23/0x37 [<ffffffff81533244>] mdiobus_read+0x34/0x60 [<ffffffff8153b95a>] __mv88e6xxx_reg_read+0x8a/0xa0 [<ffffffff8153b9bc>] mv88e6xxx_reg_read+0x4c/0xa0 Fixes: b4d2394d ("dsa: Replace mii_bus with a generic host device") Cc: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Alexander Duyck <alexander.h.duyck@redhat.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Jon Paul Maloy authored
In commit ec8a2e56 ("tipc: same receive code path for connection protocol and data messages") we omitted the the possiblilty that an arriving message extracted from a bundle buffer may be a multicast message. Such messages need to be to be delivered to the socket via a separate function, tipc_sk_mcast_rcv(). As a result, small multicast messages arriving as members of a bundle buffer will be silently dropped. This commit corrects the error by considering this case in the function tipc_link_bundle_rcv(). Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
Commit 971f10ec ("tcp: better TCP_SKB_CB layout to reduce cache line misses") added a regression for SO_BINDTODEVICE on IPv6. This is because we still use inet6_iif() which expects that IP6 control block is still at the beginning of skb->cb[] This patch adds tcp_v6_iif() helper and uses it where necessary. Because __inet6_lookup_skb() is used by TCP and DCCP, we add an iif parameter to it. Signed-off-by: Eric Dumazet <edumazet@google.com> Fixes: 971f10ec ("tcp: better TCP_SKB_CB layout to reduce cache line misses") Acked-by: Cong Wang <cwang@twopensource.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Edward Cree authored
Don't ring the doorbell, and don't do PIO. This will also prevent TX Push, because there will be more than one buffer waiting when the doorbell is rung. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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hayeswang authored
Remove calling cancel_delayed_work_sync() for runtime suspend, because it would cause dead lock. Instead, return -EBUSY to avoid the device enters suspending if the net is running and the delayed work is pending or running. The delayed work would try to wake up the device later, so the suspending is not necessary. Signed-off-by: Hayes Wang <hayeswang@realtek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Li RongQing authored
pskb_may_pull() maybe change skb->data and make uh pointer oboslete, so reload uh and guehdr Fixes: 37dd0247 ("gue: Receive side for Generic UDP Encapsulation") Cc: Tom Herbert <therbert@google.com> Signed-off-by: Li RongQing <roy.qing.li@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Li RongQing authored
pskb_may_pull() maybe change skb->data and make eth pointer oboslete, so set eth after pskb_may_pull() Fixes:3d7b46cd("ip_tunnel: push generic protocol handling to ip_tunnel module") Cc: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: Li RongQing <roy.qing.li@gmail.com> Acked-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Haiyang Zhang authored
In case that the IP header has optional field at the end, this patch will get the port numbers after that field, and compute the hash. The general parser skb_flow_dissect() is used here. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 17 Oct, 2014 8 commits
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Pravin B Shelar authored
If megaflows are disabled, the userspace does not send the netlink attribute OVS_FLOW_ATTR_MASK, and the kernel must create an exact match mask. sw_flow_mask_set() sets every bytes (in 'range') of the mask to 0xff, even the bytes that represent padding for struct sw_flow, or the bytes that represent fields that may not be set during ovs_flow_extract(). This is a problem, because when we extract a flow from a packet, we do not memset() anymore the struct sw_flow to 0. This commit gets rid of sw_flow_mask_set() and introduces mask_set_nlattr(), which operates on the netlink attributes rather than on the mask key. Using this approach we are sure that only the bytes that the user provided in the flow are matched. Also, if the parse_flow_mask_nlattrs() for the mask ENCAP attribute fails, we now return with an error. This bug is introduced by commit 07148121 ("openvswitch: Eliminate memset() from flow_extract"). Reported-by: Alex Wang <alexw@nicira.com> Signed-off-by: Daniele Di Proietto <ddiproietto@vmware.com> Signed-off-by: Andy Zhou <azhou@nicira.com> Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Li RongQing authored
pskb_may_pull maybe change skb->data and make eth pointer oboslete, so eth needs to reload Fixes: 91269e39 ("vxlan: using pskb_may_pull as early as possible") Cc: Eric Dumazet <edumazet@google.com> Signed-off-by: Li RongQing <roy.qing.li@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Li RongQing authored
pskb_may_pull() called by arphdr_ok can change skb->data, so put the arp setting after arphdr_ok to avoid the use the freed memory Fixes: 07148121 ("openvswitch: Eliminate memset() from flow_extract.") Cc: Jesse Gross <jesse@nicira.com> Cc: Eric Dumazet <edumazet@google.com> Signed-off-by: Li RongQing <roy.qing.li@gmail.com> Acked-by: Jesse Gross <jesse@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Vasily Averin authored
ip_setup_cork() called inside ip_append_data() steals dst entry from rt to cork and in case errors in __ip_append_data() nobody frees stolen dst entry Fixes: 2e77d89b ("net: avoid a pair of dst_hold()/dst_release() in ip_append_data()") Signed-off-by: Vasily Averin <vvs@parallels.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Cong Wang authored
We can retrieve opt from skb, no need to pass it as a parameter. And opt should always be non-NULL, no need to check. Cc: Krzysztof Kolasa <kkolasa@winsoft.pl> Cc: Eric Dumazet <edumazet@google.com> Tested-by: Krzysztof Kolasa <kkolasa@winsoft.pl> Signed-off-by: Cong Wang <cwang@twopensource.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Cong Wang authored
cookie_v4_check() allocates ip_options_rcu in the same way with tcp_v4_save_options(), we can just make it a helper function. Cc: Krzysztof Kolasa <kkolasa@winsoft.pl> Cc: Eric Dumazet <edumazet@google.com> Signed-off-by: Cong Wang <cwang@twopensource.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Cong Wang authored
commit 971f10ec ("tcp: better TCP_SKB_CB layout to reduce cache line misses") missed that cookie_v4_check() still calls ip_options_echo() which uses IPCB(). It should use TCPCB() at TCP layer, so call __ip_options_echo() instead. Fixes: commit 971f10ec ("tcp: better TCP_SKB_CB layout to reduce cache line misses") Cc: Krzysztof Kolasa <kkolasa@winsoft.pl> Cc: Eric Dumazet <edumazet@google.com> Reported-by: Krzysztof Kolasa <kkolasa@winsoft.pl> Tested-by: Krzysztof Kolasa <kkolasa@winsoft.pl> Signed-off-by: Cong Wang <cwang@twopensource.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Michael Opdenacker authored
This simplifies the lanai.c driver by using the module_pci_driver() macro, at the expense of losing only debugging messages. Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 16 Oct, 2014 10 commits
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Nicolas Dichtel authored
Avoid confusion between pid and portid. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/netDavid S. Miller authored
Jeff Kirsher says: ==================== Intel Wired LAN Driver Updates 2014-10-16 This series contains updates to fm10k and ixgbe. Matthew provides two fixes for fm10k, first sets the flag to fetch the host state before kicking off the service task that reads the host state when bringing the interface up. The second makes sure that we release the mailbox lock after detecting an error and before we return the error code. Andy Zhou provides a compile fix for fm10k, when the driver is compiled into the kernel and the VXLAN driver is compiled as a module. Emil provides a fix for ixgbe to prevent against a panic by trying to dereference a NULL pointer in ixgbe_ndo_set_vf_spoofchk(). ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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Emil Tantilov authored
The check for vfinfo is not sufficient because it does not protect against specifying vf that is outside of sriov_num_vfs range. All of the ndo functions have a check for it except for ixgbevf_ndo_set_spoofcheck(). The following patch is all we need to protect against this panic: ip link set p96p1 vf 0 spoofchk off BUG: unable to handle kernel NULL pointer dereference at 0000000000000052 IP: [<ffffffffa044a1c1>] ixgbe_ndo_set_vf_spoofchk+0x51/0x150 [ixgbe] Reported-by: Thierry Herbelot <thierry.herbelot@6wind.com> Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Acked-by: Thierry Herbelot <thierry.herbelot@6wind.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Andy Zhou authored
Compiling with CONFIG_FM10K=y and VXLAN=m resulting in linking error: drivers/built-in.o: In function `fm10k_open': (.text+0x1f9d7a): undefined reference to `vxlan_get_rx_port' make: *** [vmlinux] Error 1 The fix follows the same strategy as I40E. Signed-off-by: Andy Zhou <azhou@nicira.com> Acked-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Matthew Vick authored
After grabbing the mailbox lock and detecting an error, the lock must be released before the error code can be returned. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Matthew Vick authored
Set the flag to fetch the host state before kicking off the service task that reads the host state when bringing the interface back up. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Li RongQing authored
pskb_may_pull should be used to check if skb->data has enough space, skb->len can not ensure that. Cc: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: Li RongQing <roy.qing.li@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Li RongQing authored
when netif_rx() is done, the netif_rx handled skb maybe be freed, and should not be used. Signed-off-by: Li RongQing <roy.qing.li@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Fabian Frederick authored
All functions used struct vport *vport except ovs_vport_find_upcall_portid. This fixes 1 kerneldoc warning Signed-off-by: Fabian Frederick <fabf@skynet.be> Acked-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Fabian Frederick authored
s/sock/gs Signed-off-by: Fabian Frederick <fabf@skynet.be> Acked-by: Pravin B Shelar <pshelar@nicira.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 15 Oct, 2014 6 commits
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Claudiu Manoil authored
For each Rx frame the eTSEC writes its FCS (Frame Check Sequence) to the Rx buffer. The eTSEC h/w manual states in the "Receive Buffer Descriptor Field Descriptions" table: "Data length is the number of octets written by the eTSEC into this BD's data buffer if L is cleared (the value is equal to MRBLR), or, if L is set, the length of the frame including *CRC*, FCB (if RCTRL[PRSDEP > 00), preamble (if MACCFG2[PreAmRxEn]=1), time stamp (if RCTRL[TS] = 1) and any padding (RCTRL[PAL])." Though the FCS bytes are removed by the driver before passing the skb to the net stack, the Rx buffer size computation does not currently take into account the FCS bytes (4 bytes). Because the Rx buffer size is multiple of 512 bytes, leaving out the FCS is not a problem for the default MTU of 1500, as the Rx buffer size is 1536 in this case. However, for custom MTUs, where the difference between the MTU size and the Rx buffer size is less, this can be a problem as the computed Rx buffer size won't be enough to accomodate the FCS for a received frame that is big enough (close to MTU size). In such case the received frame is considered to be incomplete (L flag not set in the RxBD status) and silently dropped. Note that the driver does not currently support S/G on Rx, so it has to compute its Rx buffer size based on the MTU of the device. Reported-by: Kristian Otnes <kotnes@cisco.com> Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Michael S. Tsirkin authored
commit 0b725a2c net: Remove ndo_xmit_flush netdev operation, use signalling instead. added code that looks at skb->xmit_more after the skb has been put in TX VQ. Since some paths process the ring and free the skb immediately, this can cause use after free. Fix by storing xmit_more in a local variable. Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Nimrod Andy authored
iMX6SX IEEE 1588 module has one hw issue in capturing the ATVR register. The current SW flow is: ENET0->ATCR |= ENET_ATCR_CAPTURE_MASK; ts_counter_ns = ENET0->ATVR; The ATVR value is not expected value that cause LinuxPTP stack cannot be convergent. ENET Block Guide/ Chapter for the iMX6SX (PELE) address the issue: After set ENET_ATCR[Capture], there need some time cycles before the counter value is capture in the register clock domain. The wait-time-cycles is at least 6 clock cycles of the slower clock between the register clock and the 1588 clock. So need something like: ENET0->ATCR |= ENET_ATCR_CAPTURE_MASK; wait(); ts_counter_ns = ENET0->ATVR; For iMX6SX, the 1588 ts_clk is fixed to 25Mhz, register clock is 66Mhz, so the wait-time-cycles must be greater than 240ns (40ns * 6). The patch add 1us delay before cpu read ATVR register. Changes V2: Modify the commit/comments log to describe the issue clearly. Signed-off-by: Fugang Duan <B38611@freescale.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Himangi Saraogi authored
The Linux kernel coding style guidelines suggest not using typedefs for structure types. This patch gets rid of the typedef for atiixp_ide_timing. The following Coccinelle semantic patch detects the case: @tn1@ type td; @@ typedef struct { ... } td; @script:python tf@ td << tn1.td; tdres; @@ coccinelle.tdres = td; @@ type tn1.td; identifier tf.tdres; @@ -typedef struct + tdres { ... } -td ; @@ type tn1.td; identifier tf.tdres; @@ -td + struct tdres Signed-off-by: Himangi Saraogi <himangi774@gmail.com> Acked-by: Julia Lawall <julia.lawall@lip6.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
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Anish Bhatt authored
Identified by kbuild test robot. csk family is always set to be AF_INET or AF_INET6, so skb will always be initialized to some value but there is no harm in silencing the warning anyways. Signed-off-by: Anish Bhatt <anish@chelsio.com> Fixes : f42bb57c ('cxgb4i : Fix -Wunused-function warning') Signed-off-by: David S. Miller <davem@davemloft.net>
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Tom Herbert authored
Add ndo_gso_check which a device can define to indicate whether is is capable of doing GSO on a packet. This funciton would be called from the stack to determine whether software GSO is needed to be done. A driver should populate this function if it advertises GSO types for which there are combinations that it wouldn't be able to handle. For instance a device that performs UDP tunneling might only implement support for transparent Ethernet bridging type of inner packets or might have limitations on lengths of inner headers. Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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