- 15 Nov, 2016 18 commits
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David S. Miller authored
drivers/net/vxlan.c: In function ‘vxlan_xmit_one’: drivers/net/vxlan.c:2141:10: warning: ‘err’ may be used uninitialized in this function [-Wmaybe-uninitialized] Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Pravin B Shelar says: ==================== vxlan: xmit improvements. Following patch series improves vxlan fast path, removes duplicate code and simplifies vxlan xmit code path. v2-v3: Removed unrelated warning fix from patch 2. rearranged error handling from patch 3 Fixed stats updates in vxlan route lookup in patch 4 v1-v2: Fix compilation error when IPv6 support is not enabled. ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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pravin shelar authored
Signed-off-by:
Pravin B Shelar <pshelar@ovn.org> Acked-by:
Jiri Benc <jbenc@redhat.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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pravin shelar authored
Existing vxlan xmit function handles two distinct cases. 1. vxlan net device 2. vxlan lwt device. By seperating initialization these two cases the egress path looks better. Signed-off-by:
Pravin B Shelar <pshelar@ovn.org> Acked-by:
Jiri Benc <jbenc@redhat.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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pravin shelar authored
Avoid code duplicate code for handling RTF_LOCAL routes. Signed-off-by:
Pravin B Shelar <pshelar@ovn.org> Acked-by:
Jiri Benc <jbenc@redhat.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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pravin shelar authored
Move route sanity check to respective vxlan[4/6]_get_route functions. This allows us to perform all sanity checks before caching the dst so that we can avoid these checks on subsequent packets. This give move accurate metadata information for packet from fill_metadata_dst(). Signed-off-by:
Pravin B Shelar <pshelar@ovn.org> Acked-by:
Jiri Benc <jbenc@redhat.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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pravin shelar authored
vxlan egress path error handling has became complicated, it need to handle IPv4 and IPv6 tunnel cases. Earlier patch removes vlan handling from vxlan_build_skb(), so vxlan_build_skb does not need to free skb and we can simplify the xmit path by having single error handling for both type of tunnels. Signed-off-by:
Pravin B Shelar <pshelar@ovn.org> Acked-by:
Jiri Benc <jbenc@redhat.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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pravin shelar authored
Check the vxlan socket in vxlan6_getroute(). Signed-off-by:
Pravin B Shelar <pshelar@ovn.org> Acked-by:
Jiri Benc <jbenc@redhat.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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pravin shelar authored
VxLan device does not have special handling for vlan taging on egress. Therefore it does not make sense to expose vlan offloading feature. This patch does not change vxlan functinality. Signed-off-by:
Pravin B Shelar <pshelar@ovn.org> Acked-by:
Jiri Benc <jbenc@redhat.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Paolo Abeni authored
The commit 850cbadd ("udp: use it's own memory accounting schema") assumes that the socket proto has memory accounting enabled, but this is not the case for UDPLITE. Fix it enabling memory accounting for UDPLITE and performing fwd allocated memory reclaiming on socket shutdown. UDP and UDPLITE share now the same memory accounting limits. Also drop the backlog receive operation, since is no more needed. Fixes: 850cbadd ("udp: use it's own memory accounting schema") Reported-by:
Andrei Vagin <avagin@gmail.com> Suggested-by:
Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by:
Paolo Abeni <pabeni@redhat.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Martin KaFai Lau says: ==================== bpf: LRU map This patch set adds LRU map implementation to the existing BPF map family. The first few patches introduce the basic BPF LRU list implementation. The later patches introduce the LRU versions of the existing BPF_MAP_TYPE_LRU_[PERCPU_]HASH maps by leveraging the BPF LRU list. v2: - Added a percpu LRU list option which can be specified as a map attribute. [Note: percpu LRU list has nothing to do with the map's value] - Removed the cpu variable from the struct bpf_lru_locallist since it is not needed. - Changed the __bpf_lru_node_move_out to __bpf_lru_node_move_to_free in patch 1 to prepare the percpu LRU list in patch 2. - Moved the test_lru_map under selftests - Refactored a few things in the test codes ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Martin KaFai Lau authored
This patch has some unit tests and a test_lru_dist. The test_lru_dist reads in the numeric keys from a file. The files used here are generated by a modified fio-genzipf tool originated from the fio test suit. The sample data file can be found here: https://github.com/iamkafai/bpf-lru The zipf.* data files have 100k numeric keys and the key is also ranged from 1 to 100k. The test_lru_dist outputs the number of unique keys (nr_unique). F.e. The following means, 61239 of them is unique out of 100k keys. nr_misses means it cannot be found in the LRU map, so nr_misses must be >= nr_unique. test_lru_dist also simulates a perfect LRU map as a comparison: [root@arch-fb-vm1 ~]# ~/devshare/fb-kernel/linux/samples/bpf/test_lru_dist \ /root/zipf.100k.a1_01.out 4000 1 ... test_parallel_lru_dist (map_type:9 map_flags:0x0): task:0 BPF LRU: nr_unique:23093(/100000) nr_misses:31603(/100000) task:0 Perfect LRU: nr_unique:23093(/100000 nr_misses:34328(/100000) .... test_parallel_lru_dist (map_type:9 map_flags:0x2): task:0 BPF LRU: nr_unique:23093(/100000) nr_misses:31710(/100000) task:0 Perfect LRU: nr_unique:23093(/100000 nr_misses:34328(/100000) [root@arch-fb-vm1 ~]# ~/devshare/fb-kernel/linux/samples/bpf/test_lru_dist \ /root/zipf.100k.a0_01.out 40000 1 ... test_parallel_lru_dist (map_type:9 map_flags:0x0): task:0 BPF LRU: nr_unique:61239(/100000) nr_misses:67054(/100000) task:0 Perfect LRU: nr_unique:61239(/100000 nr_misses:66993(/100000) ... test_parallel_lru_dist (map_type:9 map_flags:0x2): task:0 BPF LRU: nr_unique:61239(/100000) nr_misses:67068(/100000) task:0 Perfect LRU: nr_unique:61239(/100000 nr_misses:66993(/100000) LRU map has also been added to map_perf_test: /* Global LRU */ [root@kerneltest003.31.prn1 ~]# for i in 1 4 8; do echo -n "$i cpus: "; \ ./map_perf_test 16 $i | awk '{r += $3}END{print r " updates"}'; done 1 cpus: 2934082 updates 4 cpus: 7391434 updates 8 cpus: 6500576 updates /* Percpu LRU */ [root@kerneltest003.31.prn1 ~]# for i in 1 4 8; do echo -n "$i cpus: "; \ ./map_perf_test 32 $i | awk '{r += $3}END{print r " updates"}'; done 1 cpus: 2896553 updates 4 cpus: 9766395 updates 8 cpus: 17460553 updates Signed-off-by:
Martin KaFai Lau <kafai@fb.com> Acked-by:
Alexei Starovoitov <ast@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Martin KaFai Lau authored
Provide a LRU version of the existing BPF_MAP_TYPE_PERCPU_HASH Signed-off-by:
Martin KaFai Lau <kafai@fb.com> Acked-by:
Alexei Starovoitov <ast@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Martin KaFai Lau authored
Provide a LRU version of the existing BPF_MAP_TYPE_HASH. Signed-off-by:
Martin KaFai Lau <kafai@fb.com> Acked-by:
Alexei Starovoitov <ast@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Martin KaFai Lau authored
Refactor the codes that populate the value of a htab_elem in a BPF_MAP_TYPE_PERCPU_HASH typed bpf_map. Signed-off-by:
Martin KaFai Lau <kafai@fb.com> Acked-by:
Alexei Starovoitov <ast@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Martin KaFai Lau authored
Instead of having a common LRU list, this patch allows a percpu LRU list which can be selected by specifying a map attribute. The map attribute will be added in the later patch. While the common use case for LRU is #reads >> #updates, percpu LRU list allows bpf prog to absorb unusual #updates under pathological case (e.g. external traffic facing machine which could be under attack). Each percpu LRU is isolated from each other. The LRU nodes (including free nodes) cannot be moved across different LRU Lists. Here are the update performance comparison between common LRU list and percpu LRU list (the test code is at the last patch): [root@kerneltest003.31.prn1 ~]# for i in 1 4 8; do echo -n "$i cpus: "; \ ./map_perf_test 16 $i | awk '{r += $3}END{print r " updates"}'; done 1 cpus: 2934082 updates 4 cpus: 7391434 updates 8 cpus: 6500576 updates [root@kerneltest003.31.prn1 ~]# for i in 1 4 8; do echo -n "$i cpus: "; \ ./map_perf_test 32 $i | awk '{r += $3}END{printr " updates"}'; done 1 cpus: 2896553 updates 4 cpus: 9766395 updates 8 cpus: 17460553 updates Signed-off-by:
Martin KaFai Lau <kafai@fb.com> Acked-by:
Alexei Starovoitov <ast@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Martin KaFai Lau authored
Introduce bpf_lru_list which will provide LRU capability to the bpf_htab in the later patch. * General Thoughts: 1. Target use case. Read is more often than update. (i.e. bpf_lookup_elem() is more often than bpf_update_elem()). If bpf_prog does a bpf_lookup_elem() first and then an in-place update, it still counts as a read operation to the LRU list concern. 2. It may be useful to think of it as a LRU cache 3. Optimize the read case 3.1 No lock in read case 3.2 The LRU maintenance is only done during bpf_update_elem() 4. If there is a percpu LRU list, it will lose the system-wise LRU property. A completely isolated percpu LRU list has the best performance but the memory utilization is not ideal considering the work load may be imbalance. 5. Hence, this patch starts the LRU implementation with a global LRU list with batched operations before accessing the global LRU list. As a LRU cache, #read >> #update/#insert operations, it will work well. 6. There is a local list (for each cpu) which is named 'struct bpf_lru_locallist'. This local list is not used to sort the LRU property. Instead, the local list is to batch enough operations before acquiring the lock of the global LRU list. More details on this later. 7. In the later patch, it allows a percpu LRU list by specifying a map-attribute for scalability reason and for use cases that need to prepare for the worst (and pathological) case like DoS attack. The percpu LRU list is completely isolated from each other and the LRU nodes (including free nodes) cannot be moved across the list. The following description is for the global LRU list but mostly applicable to the percpu LRU list also. * Global LRU List: 1. It has three sub-lists: active-list, inactive-list and free-list. 2. The two list idea, active and inactive, is borrowed from the page cache. 3. All nodes are pre-allocated and all sit at the free-list (of the global LRU list) at the beginning. The pre-allocation reasoning is similar to the existing BPF_MAP_TYPE_HASH. However, opting-out prealloc (BPF_F_NO_PREALLOC) is not supported in the LRU map. * Active/Inactive List (of the global LRU list): 1. The active list, as its name says it, maintains the active set of the nodes. We can think of it as the working set or more frequently accessed nodes. The access frequency is approximated by a ref-bit. The ref-bit is set during the bpf_lookup_elem(). 2. The inactive list, as its name also says it, maintains a less active set of nodes. They are the candidates to be removed from the bpf_htab when we are running out of free nodes. 3. The ordering of these two lists is acting as a rough clock. The tail of the inactive list is the older nodes and should be released first if the bpf_htab needs free element. * Rotating the Active/Inactive List (of the global LRU list): 1. It is the basic operation to maintain the LRU property of the global list. 2. The active list is only rotated when the inactive list is running low. This idea is similar to the current page cache. Inactive running low is currently defined as "# of inactive < # of active". 3. The active list rotation always starts from the tail. It moves node without ref-bit set to the head of the inactive list. It moves node with ref-bit set back to the head of the active list and then clears its ref-bit. 4. The inactive rotation is pretty simply. It walks the inactive list and moves the nodes back to the head of active list if its ref-bit is set. The ref-bit is cleared after moving to the active list. If the node does not have ref-bit set, it just leave it as it is because it is already in the inactive list. * Shrinking the Inactive List (of the global LRU list): 1. Shrinking is the operation to get free nodes when the bpf_htab is full. 2. It usually only shrinks the inactive list to get free nodes. 3. During shrinking, it will walk the inactive list from the tail, delete the nodes without ref-bit set from bpf_htab. 4. If no free node found after step (3), it will forcefully get one node from the tail of inactive or active list. Forcefully is in the sense that it ignores the ref-bit. * Local List: 1. Each CPU has a 'struct bpf_lru_locallist'. The purpose is to batch enough operations before acquiring the lock of the global LRU. 2. A local list has two sub-lists, free-list and pending-list. 3. During bpf_update_elem(), it will try to get from the free-list of (the current CPU local list). 4. If the local free-list is empty, it will acquire from the global LRU list. The global LRU list can either satisfy it by its global free-list or by shrinking the global inactive list. Since we have acquired the global LRU list lock, it will try to get at most LOCAL_FREE_TARGET elements to the local free list. 5. When a new element is added to the bpf_htab, it will first sit at the pending-list (of the local list) first. The pending-list will be flushed to the global LRU list when it needs to acquire free nodes from the global list next time. * Lock Consideration: The LRU list has a lock (lru_lock). Each bucket of htab has a lock (buck_lock). If both locks need to be acquired together, the lock order is always lru_lock -> buck_lock and this only happens in the bpf_lru_list.c logic. In hashtab.c, both locks are not acquired together (i.e. one lock is always released first before acquiring another lock). Signed-off-by:
Martin KaFai Lau <kafai@fb.com> Acked-by:
Alexei Starovoitov <ast@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller authored
Several cases of bug fixes in 'net' overlapping other changes in 'net-next-. Signed-off-by:
David S. Miller <davem@davemloft.net>
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- 14 Nov, 2016 22 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) Fix off by one wrt. indexing when dumping /proc/net/route entries, from Alexander Duyck. 2) Fix lockdep splats in iwlwifi, from Johannes Berg. 3) Cure panic when inserting certain netfilter rules when NFT_SET_HASH is disabled, from Liping Zhang. 4) Memory leak when nft_expr_clone() fails, also from Liping Zhang. 5) Disable UFO when path will apply IPSEC tranformations, from Jakub Sitnicki. 6) Don't bogusly double cwnd in dctcp module, from Florian Westphal. 7) skb_checksum_help() should never actually use the value "0" for the resulting checksum, that has a special meaning, use CSUM_MANGLED_0 instead. From Eric Dumazet. 8) Per-tx/rx queue statistic strings are wrong in qed driver, fix from Yuval MIntz. 9) Fix SCTP reference counting of associations and transports in sctp_diag. From Xin Long. 10) When we hit ip6tunnel_xmit() we could have come from an ipv4 path in a previous layer or similar, so explicitly clear the ipv6 control block in the skb. From Eli Cooper. 11) Fix bogus sleeping inside of inet_wait_for_connect(), from WANG Cong. 12) Correct deivce ID of T6 adapter in cxgb4 driver, from Hariprasad Shenai. 13) Fix potential access past the end of the skb page frag array in tcp_sendmsg(). From Eric Dumazet. 14) 'skb' can legitimately be NULL in inet{,6}_exact_dif_match(). Fix from David Ahern. 15) Don't return an error in tcp_sendmsg() if we wronte any bytes successfully, from Eric Dumazet. 16) Extraneous unlocks in netlink_diag_dump(), we removed the locking but forgot to purge these unlock calls. From Eric Dumazet. 17) Fix memory leak in error path of __genl_register_family(). We leak the attrbuf, from WANG Cong. 18) cgroupstats netlink policy table is mis-sized, from WANG Cong. 19) Several XDP bug fixes in mlx5, from Saeed Mahameed. 20) Fix several device refcount leaks in network drivers, from Johan Hovold. 21) icmp6_send() should use skb dst device not skb->dev to determine L3 routing domain. From David Ahern. 22) ip_vs_genl_family sets maxattr incorrectly, from WANG Cong. 23) We leak new macvlan port in some cases of maclan_common_netlink() errors. Fix from Gao Feng. 24) Similar to the icmp6_send() fix, icmp_route_lookup() should determine L3 routing domain using skb_dst(skb)->dev not skb->dev. Also from David Ahern. 25) Several fixes for route offloading and FIB notification handling in mlxsw driver, from Jiri Pirko. 26) Properly cap __skb_flow_dissect()'s return value, from Eric Dumazet. 27) Fix long standing regression in ipv4 redirect handling, wrt. validating the new neighbour's reachability. From Stephen Suryaputra Lin. 28) If sk_filter() trims the packet excessively, handle it reasonably in tcp input instead of exploding. From Eric Dumazet. 29) Fix handling of napi hash state when copying channels in sfc driver, from Bert Kenward. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (121 commits) mlxsw: spectrum_router: Flush FIB tables during fini net: stmmac: Fix lack of link transition for fixed PHYs sctp: change sk state only when it has assocs in sctp_shutdown bnx2: Wait for in-flight DMA to complete at probe stage Revert "bnx2: Reset device during driver initialization" ps3_gelic: fix spelling mistake in debug message net: ethernet: ixp4xx_eth: fix spelling mistake in debug message ibmvnic: Fix size of debugfs name buffer ibmvnic: Unmap ibmvnic_statistics structure sfc: clear napi_hash state when copying channels mlxsw: spectrum_router: Correctly dump neighbour activity mlxsw: spectrum: Fix refcount bug on span entries bnxt_en: Fix VF virtual link state. bnxt_en: Fix ring arithmetic in bnxt_setup_tc(). Revert "include/uapi/linux/atm_zatm.h: include linux/time.h" tcp: take care of truncations done by sk_filter() ipv4: use new_gw for redirect neigh lookup r8152: Fix error path in open function net: bpqether.h: remove if_ether.h guard net: __skb_flow_dissect() must cap its return value ...
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git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tileLinus Torvalds authored
Pull arch/tile bugfix from Chris Metcalf: "This just fixes an incompatibility with tile __ro_after_init" * 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile: tile: handle __ro_after_init like parisc does
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git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linuxLinus Torvalds authored
Pull RTC fixes from Alexandre Belloni: "Here are a few driver fixes for 4.9. It has been calm for a while so I don't expect more for this cycle. Drivers: - asm9260: fix module autoload - cmos: fix crashes - omap: fix clock handling" * tag 'rtc-4.9-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: rtc: omap: prevent disabling of clock/module during suspend rtc: omap: Fix selecting external osc rtc: cmos: Don't enable interrupts in the middle of the interrupt handler rtc: cmos: remove all __exit_p annotations rtc: asm9260: fix module autoload
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Chris Metcalf authored
The tile architecture already marks RO_DATA as read-only in the kernel, so grouping RO_AFTER_INIT_DATA with RO_DATA, as is done by default, means the kernel faults in init when it tries to write to RO_AFTER_INIT_DATA. For now, just arrange that __ro_after_init is handled like __write_once, i.e. __read_mostly. Reviewed-by:
Kees Cook <keescook@chromium.org> Signed-off-by:
Chris Metcalf <cmetcalf@mellanox.com>
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Ido Schimmel authored
Since commit b45f64d1 ("mlxsw: spectrum_router: Use FIB notifications instead of switchdev calls") we reflect to the device the entire FIB table and not only FIBs that point to netdevs created by the driver. During module removal, FIBs of the second type are removed following NETDEV_UNREGISTER events sent. The other FIBs are still present in both the driver's cache and the device's table. Fix this by iterating over all the FIB tables in the device and flush them. There's no need to take locks, as we're the only writer. Fixes: b45f64d1 ("mlxsw: spectrum_router: Use FIB notifications instead of switchdev calls") Signed-off-by:
Ido Schimmel <idosch@mellanox.com> Signed-off-by:
Jiri Pirko <jiri@mellanox.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Florian Fainelli authored
While it is useful to know which MDIO driver is being registered, demote the pr_info() to a pr_debug(). Signed-off-by:
Florian Fainelli <f.fainelli@gmail.com> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Florian Fainelli authored
Commit 52f95bbf ("stmmac: fix adjust link call in case of a switch is attached") added some logic to avoid polling the fixed PHY and therefore invoking the adjust_link callback more than once, since this is a fixed PHY and link events won't be generated. This works fine the first time, because we start with phydev->irq = PHY_POLL, so we call adjust_link, then we set phydev->irq = PHY_IGNORE_INTERRUPT and we stop polling the PHY. Now, if we called ndo_close(), which calls both phy_stop() and does an explicit netif_carrier_off(), we end up with a link down. Upon calling ndo_open() again, despite starting the PHY state machine, we have PHY_IGNORE_INTERRUPT set, and we generate no link event at all, so the link is permanently down. Fixes: 52f95bbf ("stmmac: fix adjust link call in case of a switch is attached") Signed-off-by:
Florian Fainelli <f.fainelli@gmail.com> Acked-by:
Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Gao Feng authored
The return value of function macvlan_addr_busy is used as bool value, so use bool value instead of integer number "1" and "0". Signed-off-by:
Gao Feng <gfree.wind@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Mickaël Salaün authored
Replace the custom u64_to_ptr() function with the u64_to_user_ptr() macro. Signed-off-by:
Mickaël Salaün <mic@digikod.net> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Daniel Borkmann <daniel@iogearbox.net> Acked-by:
Daniel Borkmann <daniel@iogearbox.net> Acked-by:
Alexei Starovoitov <ast@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Xin Long authored
Now when users shutdown a sock with SEND_SHUTDOWN in sctp, even if this sock has no connection (assoc), sk state would be changed to SCTP_SS_CLOSING, which is not as we expect. Besides, after that if users try to listen on this sock, kernel could even panic when it dereference sctp_sk(sk)->bind_hash in sctp_inet_listen, as bind_hash is null when sock has no assoc. This patch is to move sk state change after checking sk assocs is not empty, and also merge these two if() conditions and reduce indent level. Fixes: d46e416c ("sctp: sctp should change socket state when shutdown is received") Reported-by:
Andrey Konovalov <andreyknvl@google.com> Tested-by:
Andrey Konovalov <andreyknvl@google.com> Signed-off-by:
Xin Long <lucien.xin@gmail.com> Acked-by:
Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Acked-by:
Neil Horman <nhorman@tuxdriver.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Baoquan He says: ==================== bnx2: Wait for in-flight DMA to complete at probe stage This is v2 post. In commit 3e1be7ad ("bnx2: Reset device during driver initialization"), firmware requesting code was moved from open stage to probe stage. The reason is in kdump kernel hardware iommu need device be reset in driver probe stage, otherwise those in-flight DMA from 1st kernel will continue going and look up into the newly created io-page tables. However bnx2 chip resetting involves firmware requesting issue, that need be done in open stage. Michale Chan suggested we can just wait for the old in-flight DMA to complete at probe stage, then though without device resetting, we don't need to worry the old in-flight DMA could continue looking up the newly created io-page tables. v1->v2: Michael suggested to wait for the in-flight DMA to complete at probe stage. So give up the old method of trying to reset chip at probe stage, take the new way accordingly. ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Baoquan He authored
In-flight DMA from 1st kernel could continue going in kdump kernel. New io-page table has been created before bnx2 does reset at open stage. We have to wait for the in-flight DMA to complete to avoid it look up into the newly created io-page table at probe stage. Suggested-by:
Michael Chan <michael.chan@broadcom.com> Signed-off-by:
Baoquan He <bhe@redhat.com> Acked-by:
Michael Chan <michael.chan@broadcom.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Baoquan He authored
This reverts commit 3e1be7ad. When people build bnx2 driver into kernel, it will fail to detect and load firmware because firmware is contained in initramfs and initramfs has not been uncompressed yet during do_initcalls. So revert commit 3e1be7ad and work out a new way in the later patch. Signed-off-by:
Baoquan He <bhe@redhat.com> Acked-by:
Paul Menzel <pmenzel@molgen.mpg.de> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Colin Ian King authored
Trivial fix to spelling mistake "unmached" to "unmatched" in debug message. Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Philippe Reynes authored
The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. The previous implementation of set_settings was modifying the value of advertising, but with the new API, it's not possible. The structure ethtool_link_ksettings is defined as const. Signed-off-by:
Philippe Reynes <tremyfr@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Philippe Reynes authored
The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. The previous implementation of set_settings was modifying the value of advertising, but with the new API, it's not possible. The structure ethtool_link_ksettings is defined as const. Signed-off-by:
Philippe Reynes <tremyfr@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Philippe Reynes authored
The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. Signed-off-by:
Philippe Reynes <tremyfr@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Philippe Reynes authored
The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. Signed-off-by:
Philippe Reynes <tremyfr@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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WANG Cong authored
Similar to commit 14135f30 ("inet: fix sleeping inside inet_wait_for_connect()"), sk_wait_event() needs to fix too, because release_sock() is blocking, it changes the process state back to running after sleep, which breaks the previous prepare_to_wait(). Switch to the new wait API. Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by:
Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Linus Torvalds authored
In commit 022d00ee ("ASoC: lpass-platform: Fix broken pcm data usage") the stream specific information initialization was broken, with the dma channel information not being initialized if there was no alloc_dma_channel() helper function. Before that, the DMA channel number was implicitly initialized to zero because the backing store was allocated with devm_kzalloc(). When the init code was rewritten, that implicit initialization was lost, and gcc rightfully complains about an uninitialized variable being used. Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Cc: Mark Brown <broonie@kernel.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds authored
This reverts commit bfd8d3f2. It turns out that this flushes things much too aggressiverly, and causes lines to break up when the system logger races with new continuation lines being printed. There's a pending patch to make printk() flushing much more straightforward, but it's too invasive for 4.9, so in the meantime let's just not make the system message logging flush continuation lines. They'll be flushed by the final newline anyway. Suggested-by:
Petr Mladek <pmladek@suse.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Mauro Carvalho Chehab authored
This file was converted to a separate module at commit 7a0786c1 ("gp8psk: Fix DVB frontend attach"), because the DVB attach routines require it to work. However, I forgot to copy the MODULE_foo() macros from the original module, causing this warning: WARNING: modpost: missing MODULE_LICENSE() in drivers/media/dvb-frontends/gp8psk-fe.o Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Fixes: 7a0786c1 ("gp8psk: Fix DVB frontend attach") Signed-off-by:
Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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