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2019-04-27net/tls: byte swap device req TCP seq no upon settingJakub Kicinski2-2/+2
To avoid a sparse warning byteswap the be32 sequence number before it's stored in the atomic value. While at it drop unnecessary brackets and use kernel's u64 type. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27net/tls: move definition of tls ops into net/tls.hJakub Kicinski2-22/+18
There seems to be no reason for tls_ops to be defined in netdevice.h which is included in a lot of places. Don't wrap the struct/enum declaration in ifdefs, it trickles down unnecessary ifdefs into driver code. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27net/tls: remove old exports of sk_destruct functionsJakub Kicinski2-20/+17
tls_device_sk_destruct being set on a socket used to indicate that socket is a kTLS device one. That is no longer true - now we use sk_validate_xmit_skb pointer for that purpose. Remove the export. tls_device_attach() needs to be moved. While at it, remove the dead declaration of tls_sk_destruct(). Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-27net/tls: don't log errors every time offload can't proceedJakub Kicinski1-6/+1
Currently when CONFIG_TLS_DEVICE is set each time kTLS connection is opened and the offload is not successful (either because the underlying device doesn't support it or e.g. it's tables are full) a rate limited error will be printed to the logs. There is nothing wrong with failing TLS offload. SW path will process the packets just fine, drop the noisy messages. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26net: hns3: remove reset after command send failedWeihang Li1-10/+0
It's meaningless to trigger reset when failed to send command to IMP, because the failure is usually caused by no authority, illegal command and so on. When that happened, we just need to return the status code for further debugging. Signed-off-by: Weihang Li <liweihang@hisilicon.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26net: hns3: prevent double free in hns3_put_ring_config()Huazhong Tan1-5/+5
This patch adds a check for the hns3_put_ring_config() to prevent double free, and for more readable, move the NULL assignment of priv->ring_data into the hns3_put_ring_config(). Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26net: hns3: extend the loopback state acquisition timeliuzhongzhu1-2/+2
The test results show that the maximum time of hardware return to mac link state is 500MS.The software needs to set twice the maximum time of hardware return state (1000MS). If not modified, the loopback test returns probability failure. Signed-off-by: liuzhongzhu <liuzhongzhu@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26net: hns3: fix pause configure fail problemHuazhong Tan1-1/+4
When configure pause, current implementation returns directly after setup PFC without setup BP, which is not sufficient. So this patch fixes it, only return while setting PFC failed. Fixes: 44e59e375bf7 ("net: hns3: do not return GE PFC setting err when initializing") Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26net: hns3: not reset TQP in the DOWN while VF resettingHuazhong Tan1-2/+4
Since the hardware does not handle mailboxes and the hardware reset include TQP reset, so it is unnecessary to reset TQP in the hclgevf_ae_stop() while doing VF reset. Also it is unnecessary to reset the remaining TQP when one reset fails. Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26net: hns3: use a reserved byte to identify need_resp flagHuazhong Tan3-5/+9
This patch uses a reserved byte in the hclge_mbx_vf_to_pf_cmd to save the need_resp flag, so when PF received the mailbox, it can use it to decise whether send a response to VF. For hclge_set_vf_uc_mac_addr(), it should use mbx_need_resp flag to decide whether send response to VF. Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26net: hns3: use atomic_t replace u32 for arq's countHuazhong Tan3-5/+6
Since irq handler and mailbox task will both update arq's count, so arq's count should use atomic_t instead of u32, otherwise its value may go wrong finally. Fixes: 07a0556a3a73 ("net: hns3: Changes to support ARQ(Asynchronous Receive Queue)") Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26net: hns3: stop sending keep alive msg when VF command queue needs reinitHuazhong Tan1-1/+1
HCLGEVF_STATE_CMD_DISABLE is more suitable than HCLGEVF_STATE_RST_HANDLING to stop sending keep alive msg, since HCLGEVF_STATE_RST_HANDLING only be set when the reset task is running. Fixes: c59a85c07e77 ("net: hns3: stop sending keep alive msg to PF when VF is resetting") Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26net: hns3: handle the BD info on the last BD of the packetYunsheng Lin1-18/+20
The bdinfo handled in hns3_handle_bdinfo is only valid on the last BD of the current packet, currently the bd info may be handled based on the first BD if the packet has more than two BDs, which may cause rx error. This patch fixes it by using the last BD of the current packet in hns3_handle_bdinfo. Also, hns3_set_rx_skb_rss_type has used RSS hash value from the last BD of the current packet, so remove the same last BD calculation in hns3_set_rx_skb_rss_type and call it from hns3_handle_bdinfo. Fixes: e55970950556 ("net: hns3: Add handling of GRO Pkts not fully RX'ed in NAPI poll") Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26net: hns3: fix for TX clean num when cleaning TX BDYunsheng Lin1-1/+2
hns3_desc_unused() returns how many BD have been cleaned, but new buffer has not been attached to them. The register of HNS3_RING_RX_RING_FBDNUM_REG returns how many BD need allocating new buffer to or need to cleaned. So the remaining BD need to be clean is HNS3_RING_RX_RING_FBDNUM_REG - hns3_desc_unused(). Also, new buffer can not attach to the pending BD when the last BD is not handled, because memcpy has not been done on the first pending BD. This patch fixes by subtracting the pending BD num from unused_count after 'HNS3_RING_RX_RING_FBDNUM_REG - unused_count' is used to calculate the BD bum need to be clean. Fixes: e55970950556 ("net: hns3: Add handling of GRO Pkts not fully RX'ed in NAPI poll") Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26net: hns3: fix data race between ring->next_to_cleanYunsheng Lin2-5/+16
hns3_clean_tx_ring calls hns3_nic_reclaim_one_desc to clean buffers and set ring->next_to_clean, then hns3_nic_net_xmit reuses the cleaned buffers. But there are no memory barriers when buffers gets recycled, so the recycled buffers can be corrupted. This patch uses smp_store_release to update ring->next_to_clean and smp_load_acquire to read ring->next_to_clean to properly hand off buffers from hns3_clean_tx_ring to hns3_nic_net_xmit. Fixes: 76ad4f0ee747 ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC") Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26nfp: implement PCI driver shutdown callbackDirk van der Merwe2-5/+30
Device may be shutdown without the hardware being reinitialized, in which case we want to ensure we cleanup properly. This is especially important for kexec with traffic flowing. The shutdown procedures resembles the remove procedures, so we can reuse those common tasks. Signed-off-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26NFC: st95hf: remove set but not used variables 'dev, nfcddev'YueHaibing1-4/+0
Fixes gcc '-Wunused-but-set-variable' warning: drivers/nfc/st95hf/core.c: In function 'st95hf_irq_thread_handler': drivers/nfc/st95hf/core.c:786:26: warning: variable 'nfcddev' set but not used [-Wunused-but-set-variable] drivers/nfc/st95hf/core.c:784:17: warning: variable 'dev' set but not used [-Wunused-but-set-variable] They are never used since introduction in commit cab47333f0f7 ("NFC: Add STMicroelectronics ST95HF driver") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26tipc: remove rcu_read_unlock() left in tipc_udp_recv()Eric Dumazet1-1/+0
I forgot to remove one rcu_read_unlock() before a return statement. Joy of mixing goto and return styles in a function :) Fixes: 4109a2c3b91e ("tipc: tipc_udp_recv() cleanup vs rcu verbs") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26net: phy: improve genphy_soft_resetHeiner Kallweit1-2/+14
PHY's behave differently when being reset. Some reset registers to defaults, some don't. Some trigger an autoneg restart, some don't. So let's also set the autoneg restart bit when resetting. Then PHY behavior should be more consistent. Clearing BMCR_ISOLATE serves the same purpose and is borrowed from genphy_restart_aneg. BMCR holds the speed / duplex settings in fixed mode. Therefore we may have an issue if a soft reset resets BMCR to its default. So better call genphy_setup_forced() afterwards in fixed mode. We've seen no related complaint in the last >10 yrs, so let's treat it as an improvement. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26usbnet: ipheth: Simplify device detectionGuenter Roeck1-55/+3
All Apple products use the same protocol for tethering over USB. To simplify the code and make it future proof, use USB_VENDOR_AND_INTERFACE_INFO() instead of USB_DEVICE_AND_INTERFACE_INFO() to automatically detect and support all existing and future Apple products using the same interface. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26ipv6: Initialize fib6_result in bpf_ipv6_fib_lookupDavid Ahern1-1/+1
fib6_result is not initialized in bpf_ipv6_fib_lookup and potentially passses garbage to the fib lookup which triggers a KASAN warning: [ 262.055450] ================================================================== [ 262.057640] BUG: KASAN: user-memory-access in fib6_rule_suppress+0x4b/0xce [ 262.059488] Read of size 8 at addr 00000a20000000b0 by task swapper/1/0 [ 262.061238] [ 262.061673] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.1.0-rc5+ #56 [ 262.063493] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.1-1 04/01/2014 [ 262.065593] Call Trace: [ 262.066277] <IRQ> [ 262.066848] dump_stack+0x7e/0xbb [ 262.067764] kasan_report+0x18b/0x1b5 [ 262.069921] __asan_load8+0x7f/0x81 [ 262.070879] fib6_rule_suppress+0x4b/0xce [ 262.071980] fib_rules_lookup+0x275/0x2cd [ 262.073090] fib6_lookup+0x119/0x218 [ 262.076457] bpf_ipv6_fib_lookup+0x39d/0x664 ... Initialize fib6_result to 0. Fixes: b1d40991506aa ("ipv6: Rename fib6_multipath_select and pass fib6_result") Signed-off-by: David Ahern <dsahern@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26cnic: Refactor code and mark expected switch fall-throughGustavo A. R. Silva1-7/+6
In preparation to enabling -Wimplicit-fallthrough, refactor code a bit and mark switch cases where we are expecting to fall through. This patch fixes the following warning: drivers/net/ethernet/broadcom/cnic.c: In function ‘cnic_cm_process_kcqe’: drivers/net/ethernet/broadcom/cnic.c:4044:11: warning: this statement may fall through [-Wimplicit-fallthrough=] opcode = L4_KCQE_OPCODE_VALUE_CLOSE_COMP; drivers/net/ethernet/broadcom/cnic.c:4050:2: note: here case L4_KCQE_OPCODE_VALUE_RESET_RECEIVED: ^~~~ Warning level 3 was used: -Wimplicit-fallthrough=3 Notice that, in this particular case, the code comment is modified in accordance with what GCC is expecting to find. This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26cxgb4/cxgb4vf_main: Mark expected switch fall-throughGustavo A. R. Silva1-1/+1
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. This patch fixes the following warning: drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c: In function ‘fwevtq_handler’: drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c:520:7: warning: this statement may fall through [-Wimplicit-fallthrough=] cpl = (void *)p; ~~~~^~~~~~~~~~~ drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c:524:2: note: here case CPL_SGE_EGR_UPDATE: { ^~~~ Warning level 3 was used: -Wimplicit-fallthrough=3 Notice that, in this particular case, the code comment is modified in accordance with what GCC is expecting to find. This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26wimax/i2400m/control: Mark expected switch fall-throughGustavo A. R. Silva1-0/+1
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. This patch fixes the following warning: In file included from drivers/net/wimax/i2400m/debug-levels.h:30, from drivers/net/wimax/i2400m/control.c:86: drivers/net/wimax/i2400m/control.c: In function ‘i2400m_report_tlv_system_state’: ./include/linux/wimax/debug.h:200:4: warning: this statement may fall through [-Wimplicit-fallthrough=] do { \ ^ ./include/linux/wimax/debug.h:404:36: note: in expansion of macro ‘_d_printf’ #define d_printf(l, _dev, f, a...) _d_printf(l, "", _dev, f, ## a) ^~~~~~~~~ drivers/net/wimax/i2400m/control.c:354:3: note: in expansion of macro ‘d_printf’ d_printf(1, dev, "entering BS-negotiated idle mode\n"); ^~~~~~~~ drivers/net/wimax/i2400m/control.c:355:2: note: here case I2400M_SS_DISCONNECTING: ^~~~ Warning level 3 was used: -Wimplicit-fallthrough=3 This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26amd-xgbe: Mark expected switch fall-throughsGustavo A. R. Silva1-3/+3
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. This patch fixes the following warnings: In file included from drivers/net/ethernet/amd/xgbe/xgbe-drv.c:129: drivers/net/ethernet/amd/xgbe/xgbe-drv.c: In function ‘xgbe_set_hwtstamp_settings’: drivers/net/ethernet/amd/xgbe/xgbe-common.h:1392:9: warning: this statement may fall through [-Wimplicit-fallthrough=] (_var) |= (((_val) & ((0x1 << (_width)) - 1)) << (_index)); \ ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/amd/xgbe/xgbe-common.h:1419:2: note: in expansion of macro ‘SET_BITS’ SET_BITS((_var), \ ^~~~~~~~ drivers/net/ethernet/amd/xgbe/xgbe-drv.c:1614:3: note: in expansion of macro ‘XGMAC_SET_BITS’ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSVER2ENA, 1); ^~~~~~~~~~~~~~ drivers/net/ethernet/amd/xgbe/xgbe-drv.c:1616:2: note: here case HWTSTAMP_FILTER_PTP_V1_L4_EVENT: ^~~~ In file included from drivers/net/ethernet/amd/xgbe/xgbe-drv.c:129: drivers/net/ethernet/amd/xgbe/xgbe-common.h:1392:9: warning: this statement may fall through [-Wimplicit-fallthrough=] (_var) |= (((_val) & ((0x1 << (_width)) - 1)) << (_index)); \ ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/amd/xgbe/xgbe-common.h:1419:2: note: in expansion of macro ‘SET_BITS’ SET_BITS((_var), \ ^~~~~~~~ drivers/net/ethernet/amd/xgbe/xgbe-drv.c:1625:3: note: in expansion of macro ‘XGMAC_SET_BITS’ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSVER2ENA, 1); ^~~~~~~~~~~~~~ drivers/net/ethernet/amd/xgbe/xgbe-drv.c:1627:2: note: here case HWTSTAMP_FILTER_PTP_V1_L4_SYNC: ^~~~ In file included from drivers/net/ethernet/amd/xgbe/xgbe-drv.c:129: drivers/net/ethernet/amd/xgbe/xgbe-common.h:1392:9: warning: this statement may fall through [-Wimplicit-fallthrough=] (_var) |= (((_val) & ((0x1 << (_width)) - 1)) << (_index)); \ ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/amd/xgbe/xgbe-common.h:1419:2: note: in expansion of macro ‘SET_BITS’ SET_BITS((_var), \ ^~~~~~~~ drivers/net/ethernet/amd/xgbe/xgbe-drv.c:1636:3: note: in expansion of macro ‘XGMAC_SET_BITS’ XGMAC_SET_BITS(mac_tscr, MAC_TSCR, TSVER2ENA, 1); ^~~~~~~~~~~~~~ drivers/net/ethernet/amd/xgbe/xgbe-drv.c:1638:2: note: here case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ: ^~~~ Warning level 3 was used: -Wimplicit-fallthrough=3 Notice that, in this particular case, the code comments are modified in accordance with what GCC is expecting to find. This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26net: socket: Fix missing break in switch statementGustavo A. R. Silva1-0/+1
Add missing break statement in order to prevent the code from falling through to cases SIOCGSTAMP_NEW and SIOCGSTAMPNS_NEW. This bug was found thanks to the ongoing efforts to enable -Wimplicit-fallthrough. Fixes: 0768e17073dc ("net: socket: implement 64-bit timestamps") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26s390/qeth: trust non-IP cast type in qeth_l3_fill_header()Julian Wiedmann1-8/+3
When building the L3 HW header for non-IP packets, trust the cast type that was passed as parameter. qeth_l3_get_cast_type() has most likely also used h_dest to determine the cast type, so we get the same result, and can remove that duplicated code. In the unlikely case that we would get a _different_ cast type, then that's based off a route lookup and should be considered authoritative. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26s390/qeth: extract helper to determine L2 cast typeJulian Wiedmann3-18/+14
This de-duplicates the L2 and L3 cast-type code, and makes the L2 code a bit more robust by removing the fragile assumption that skb->data always points to the Ethernet Header. This would break in code paths where we pushed the HW header onto the skb. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26s390/qeth: cache max number of available buffer elementsJulian Wiedmann3-24/+22
The QETH_MAX_BUFFER_ELEMENTS() macro effectively returns a constant value. To avoid some redundant pointer chasing and computations in the xmit hot path, cache this value in the queue struct. Take this as opportunity to shrink some of the queue struct's fields to their appropriate value range, slightly reducing its total size. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26s390/qeth: don't clear Output buffers on every queue initJulian Wiedmann1-6/+2
On the first initialization of a queue, its Output Buffers are in a clean state with no attached resources. On every subsequent initialization, qeth_l?_stop_card() has previously put them in a clean state via qeth_drain_output_queues(). So the call to qeth_clear_output_buffer() is redundant and can be removed. While at it, move the initialization of the queue's card pointer into the queue allocation. It never changes afterwards. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26s390/qeth: use IS_* helpers for checking device typeJulian Wiedmann7-78/+54
We have helper macros for all possible device types, replace all remaining open-coded accesses to the type fields. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26s390/qeth: clean up stale buffer state documentationJulian Wiedmann1-28/+13
We don't keep track of Input Buffer states, so remove the comments that make it sound like the qeth_qdio_buffer_states enum applies to Input Buffers. Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26s390/qeth: remove RX seqno in skb->cbJulian Wiedmann2-3/+0
It's unclear what exact purpose this seqno may have served in the past. But it's certainly no longer used anymore, as the following napi_gro_receive() will straight away clear this part of the cb again. Suggested-by: Karsten Graul <kgraul@linux.ibm.com> Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26s390: qeth: address type mismatch warningArnd Bergmann1-3/+7
clang produces a harmless warning for each use for the qeth_adp_supported macro: drivers/s390/net/qeth_l2_main.c:559:31: warning: implicit conversion from enumeration type 'enum qeth_ipa_setadp_cmd' to different enumeration type 'enum qeth_ipa_funcs' [-Wenum-conversion] if (qeth_adp_supported(card, IPA_SETADP_SET_PROMISC_MODE)) ~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/s390/net/qeth_core.h:179:41: note: expanded from macro 'qeth_adp_supported' qeth_is_ipa_supported(&c->options.adp, f) ~~~~~~~~~~~~~~~~~~~~~ ^ Add a version of this macro that uses the correct types, and remove the unused qeth_adp_enabled() macro that has the same problem. Reviewed-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-04-26mac80211: probe unexercised mesh linksRajkumar Manoharan5-0/+45
The requirement for mesh link metric refreshing, is that from one mesh point we be able to send some data frames to other mesh points which are not currently selected as a primary traffic path, but which are only 1 hop away. The absence of the primary path to the chosen node makes it necessary to apply some form of marking on a chosen packet stream so that the packets can be properly steered to the selected node for testing, and not by the regular mesh path lookup. Tested-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org> Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-04-26mac80211: add option for setting control flagsRajkumar Manoharan3-9/+14
Allows setting of control flags of skb cb - if needed - when calling ieee80211_subif_start_xmit(). Tested-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org> Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-04-26cfg80211: add support to probe unexercised mesh linkRajkumar Manoharan5-0/+101
Adding support to allow mesh HWMP to measure link metrics on unexercised direct mesh path by sending some data frames to other mesh points which are not currently selected as a primary traffic path but only 1 hop away. The absence of the primary path to the chosen node makes it necessary to apply some form of marking on a chosen packet stream so that the packets can be properly steered to the selected node for testing, and not by the regular mesh path lookup. Tested-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org> Signed-off-by: Rajkumar Manoharan <rmanohar@codeaurora.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-04-26mac80211: Set CAN_REPLACE_PTK0 for SW crypto only driversAlexander Wetzel1-0/+7
Mac80211 SW crypto handles replacing PTK keys correctly. Don't trigger needless warnings or workarounds when the driver can only use the known good SW crypto provided by mac80211. Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-04-26mac80211_hwsim: Extended Key ID supportAlexander Wetzel1-0/+6
Allow Extended Key ID to be used with hwsim. Hwsim can only communicate with other hwsim cards, allowing it to bypass creation of A-MPDUs in the first place. Mixing keyIDs in an A-MPDU is therefore impossible and can never cause interoperability issues with other cards. Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de> [reword comment slightly] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-04-26nl80211: do a struct assignment to radar_chandef instead of memcpy()Luca Coelho1-1/+1
We are copying one entire structure to another of the same type in nl80211_notify_radar_detection, so it's simpler and safer to do a struct assignment instead of memcpy(). Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-04-26mac80211: Fix Extended Key ID auto activationAlexander Wetzel1-1/+5
Only enable Extended Key ID support for drivers which are not supporting crypto offload and also do not support A-MPDU. While any driver using SW crypto from mac80211 is generally able to also support Extended Key ID these drivers are likely to mix keyIDs in AMPDUs when rekeying. According to IEEE 802.11-2016 "9.7.3 A-MPDU contents" this is not allowed. Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de> [reword comment a bit, move ! into logic expression] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-04-26cfg80211: don't pass pointer to pointer unnecessarilyDan Carpenter3-9/+9
The cfg80211_merge_profile() and ieee802_11_find_bssid_profile() are a bit cleaner if we just pass the merged_ie pointer instead of a pointer to the pointer. This isn't a functional change, it's just a clean up. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-04-26mac80211: store tx power value from user to stationAshok Raj Nagarajan5-0/+87
This patch introduce a new driver callback drv_sta_set_txpwr. This API will copy the transmit power value passed from user space and call the driver callback to set the tx power for the station. Co-developed-by: Balaji Pothunoori <bpothuno@codeaurora.org> Signed-off-by: Ashok Raj Nagarajan <arnagara@codeaurora.org> Signed-off-by: Balaji Pothunoori <bpothuno@codeaurora.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-04-26cfg80211: Add support to set tx power for a station associatedAshok Raj Nagarajan3-0/+80
This patch adds support to set transmit power setting type and transmit power level attributes to NL80211_CMD_SET_STATION in order to facilitate adjusting the transmit power level of a station associated to the AP. The added attributes allow selection of automatic and limited transmit power level, with the level defined in dBm format. Co-developed-by: Balaji Pothunoori <bpothuno@codeaurora.org> Signed-off-by: Ashok Raj Nagarajan <arnagara@codeaurora.org> Signed-off-by: Balaji Pothunoori <bpothuno@codeaurora.org> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-04-26mac80211: only allocate one queue when using iTXQsJohannes Berg1-5/+5
There's no need to allocate than one queue in the iTXQs case now that we no longer use ndo_select_queue to assign the AC. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-04-26nl80211: Use struct_size() in kzalloc()Gustavo A. R. Silva1-7/+3
One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example: struct foo { int stuff; struct boo entry[]; }; size = sizeof(struct foo) + count * sizeof(struct boo); instance = kzalloc(size, GFP_KERNEL) Instead of leaving these open-coded and prone to type mistakes, we can now use the new struct_size() helper: instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL) Notice that, in this case, variable size_of_regd is not necessary, hence it is removed. This code was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-04-26cfg80211: Use struct_size() in kzalloc()Gustavo A. R. Silva1-16/+7
One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example: struct foo { int stuff; struct boo entry[]; }; size = sizeof(struct foo) + count * sizeof(struct boo); instance = kzalloc(size, GFP_KERNEL) Instead of leaving these open-coded and prone to type mistakes, we can now use the new struct_size() helper: instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL) Notice that, in this case, variable size_of_regd is not necessary, hence it is removed. This code was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-04-26mac80211: debugfs option to force TX status framesJulius Niedworok3-0/+64
At Technical University of Munich we use MAC 802.11 TX status frames to perform several measurements in MAC 802.11 setups. With ath based drivers this was possible until commit d94a461d7a7df6 ("ath9k: use ieee80211_tx_status_noskb where possible") as the driver ignored the IEEE80211_TX_CTL_REQ_TX_STATUS flag and always delivered tx_status frames. Since that commit, this behavior was changed and the driver now adheres to IEEE80211_TX_CTL_REQ_TX_STATUS. Due to performance reasons, IEEE80211_TX_CTL_REQ_TX_STATUS is not set for data frames from interfaces in managed mode. Hence, frames that are sent from a managed mode interface do never deliver tx_status frames. This remains true even if a monitor mode interface (the measurement interface) is added to the same ieee80211 physical device. Thus, there is no possibility for receiving tx_status frames for frames sent on an interface in managed mode, if the driver adheres to IEEE80211_TX_CTL_REQ_TX_STATUS. In order to force delivery of tx_status frames for research and debugging purposes, implement a debugfs option force_tx_status for ieee80211 physical devices. When this option is set for a physical device, IEEE80211_TX_CTL_REQ_TX_STATUS is enabled in all packets sent from that device. This option can be set via /sys/kernel/debug/ieee80211/<dev>/force_tx_status. The default is disabled. Co-developed-by: Charlie Groh <ga58taw@mytum.de> Signed-off-by: Charlie Groh <ga58taw@mytum.de> Signed-off-by: Julius Niedworok <julius.n@gmx.net> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-04-26cfg80211: remove redundant zero check on variable 'changed'Colin Ian King1-3/+0
The zero check on variable changed is redundant as it must be between 1 and 3 at the end of the proceeding if statement block. Remove the redundant check. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2019-04-26mac80211/cfg80211: update bss channel on channel switchSergey Matyukevich2-3/+5
FullMAC STAs have no way to update bss channel after CSA channel switch completion. As a result, user-space tools may provide inconsistent channel info. For instance, consider the following two commands: $ sudo iw dev wlan0 link $ sudo iw dev wlan0 info The latter command gets channel info from the hardware, so most probably its output will be correct. However the former command gets channel info from scan cache, so its output will contain outdated channel info. In fact, current bss channel info will not be updated until the next [re-]connect. Note that mac80211 STAs have a workaround for this, but it requires access to internal cfg80211 data, see ieee80211_chswitch_work: /* XXX: shouldn't really modify cfg80211-owned data! */ ifmgd->associated->channel = sdata->csa_chandef.chan; This patch suggests to convert mac80211 workaround into cfg80211 behavior and to update current bss channel in cfg80211_ch_switch_notify. Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>