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2020-09-25dpaa2-mac: do not check for both child and parent DTS nodesIoana Ciornei
There is no need to check if both the MDIO controller node and its child node, the PCS device, are available since there is no chance that the child node would be enabled when the parent it's not. Suggested-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25dpaa2-eth: fix command version for Tx shapingIoana Ciornei
When adding the support for TBF offload, the improper command version was added even though the command format is for the V2 of dpni_set_tx_shaping(). This does not affect the functionality of TBF since the only change between these two versions is the addition of the exceeded parameters which are not used in TBF. Still, fix the bug so that we keep things in sync. Fixes: 39344a89623d ("dpaa2-eth: add API for Tx shaping") Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25net: usb: ax88179_178a: add Toshiba usb 3.0 adapterWilken Gottwalt
Adds the driver_info and usb ids of the AX88179 based Toshiba USB 3.0 ethernet adapter. Signed-off-by: Wilken Gottwalt <wilken.gottwalt@mailbox.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25bpf: Add comment to document BTF type PTR_TO_BTF_ID_OR_NULLJohn Fastabend
The meaning of PTR_TO_BTF_ID_OR_NULL differs slightly from other types denoted with the *_OR_NULL type. For example the types PTR_TO_SOCKET and PTR_TO_SOCKET_OR_NULL can be used for branch analysis because the type PTR_TO_SOCKET is guaranteed to _not_ have a null value. In contrast PTR_TO_BTF_ID and BTF_TO_BTF_ID_OR_NULL have slightly different meanings. A PTR_TO_BTF_TO_ID may be a pointer to NULL value, but it is safe to read this pointer in the program context because the program context will handle any faults. The fallout is for PTR_TO_BTF_ID the verifier can assume reads are safe, but can not use the type in branch analysis. Additionally, authors need to be extra careful when passing PTR_TO_BTF_ID into helpers. In general helpers consuming type PTR_TO_BTF_ID will need to assume it may be null. Seeing the above is not obvious to readers without the back knowledge lets add a comment in the type definition. Editorial comment, as networking and tracing programs get closer and more tightly merged we may need to consider a new type that we can ensure is non-null for branch analysis and also passing into helpers. Signed-off-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Lorenz Bauer <lmb@cloudflare.com>
2020-09-25Merge branch 'bonding-team-basic-dev-needed_headroom-support'David S. Miller
Eric Dumazet says: ==================== bonding/team: basic dev->needed_headroom support Both bonding and team drivers support non-ethernet devices, but missed proper dev->needed_headroom initializations. syzbot found a crash caused by bonding, I mirrored the fix in team as well. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25team: set dev->needed_headroom in team_setup_by_port()Eric Dumazet
Some devices set needed_headroom. If we ignore it, we might end up crashing in various skb_push() for example in ipgre_header() since some layers assume enough headroom has been reserved. Fixes: 1d76efe1577b ("team: add support for non-ethernet devices") Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25bonding: set dev->needed_headroom in bond_setup_by_slave()Eric Dumazet
syzbot managed to crash a host by creating a bond with a GRE device. For non Ethernet device, bonding calls bond_setup_by_slave() instead of ether_setup(), and unfortunately dev->needed_headroom was not copied from the new added member. [ 171.243095] skbuff: skb_under_panic: text:ffffffffa184b9ea len:116 put:20 head:ffff883f84012dc0 data:ffff883f84012dbc tail:0x70 end:0xd00 dev:bond0 [ 171.243111] ------------[ cut here ]------------ [ 171.243112] kernel BUG at net/core/skbuff.c:112! [ 171.243117] invalid opcode: 0000 [#1] SMP KASAN PTI [ 171.243469] gsmi: Log Shutdown Reason 0x03 [ 171.243505] Call Trace: [ 171.243506] <IRQ> [ 171.243512] [<ffffffffa171be59>] skb_push+0x49/0x50 [ 171.243516] [<ffffffffa184b9ea>] ipgre_header+0x2a/0xf0 [ 171.243520] [<ffffffffa17452d7>] neigh_connected_output+0xb7/0x100 [ 171.243524] [<ffffffffa186f1d3>] ip6_finish_output2+0x383/0x490 [ 171.243528] [<ffffffffa186ede2>] __ip6_finish_output+0xa2/0x110 [ 171.243531] [<ffffffffa186acbc>] ip6_finish_output+0x2c/0xa0 [ 171.243534] [<ffffffffa186abe9>] ip6_output+0x69/0x110 [ 171.243537] [<ffffffffa186ac90>] ? ip6_output+0x110/0x110 [ 171.243541] [<ffffffffa189d952>] mld_sendpack+0x1b2/0x2d0 [ 171.243544] [<ffffffffa189d290>] ? mld_send_report+0xf0/0xf0 [ 171.243548] [<ffffffffa189c797>] mld_ifc_timer_expire+0x2d7/0x3b0 [ 171.243551] [<ffffffffa189c4c0>] ? mld_gq_timer_expire+0x50/0x50 [ 171.243556] [<ffffffffa0fea270>] call_timer_fn+0x30/0x130 [ 171.243559] [<ffffffffa0fea17c>] expire_timers+0x4c/0x110 [ 171.243563] [<ffffffffa0fea0e3>] __run_timers+0x213/0x260 [ 171.243566] [<ffffffffa0fecb7d>] ? ktime_get+0x3d/0xa0 [ 171.243570] [<ffffffffa0ff9c4e>] ? clockevents_program_event+0x7e/0xe0 [ 171.243574] [<ffffffffa0f7e5d5>] ? sched_clock_cpu+0x15/0x190 [ 171.243577] [<ffffffffa0fe973d>] run_timer_softirq+0x1d/0x40 [ 171.243581] [<ffffffffa1c00152>] __do_softirq+0x152/0x2f0 [ 171.243585] [<ffffffffa0f44e1f>] irq_exit+0x9f/0xb0 [ 171.243588] [<ffffffffa1a02e1d>] smp_apic_timer_interrupt+0xfd/0x1a0 [ 171.243591] [<ffffffffa1a01ea6>] apic_timer_interrupt+0x86/0x90 Fixes: f5184d267c1a ("net: Allow netdevices to specify needed head/tailroom") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: syzbot <syzkaller@googlegroups.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25Merge branch 'vxlan-clean-up'David S. Miller
Fabian Frederick says: ==================== vxlan: clean-up This small patchet does some clean-up on vxlan. Second version removes VXLAN_NL2FLAG macro relevant patches as suggested by Michal and David I hope to have some feedback/ACK from vxlan developers. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25vxlan: fix vxlan_find_sock() documentation for l3mdevFabian Frederick
Since commit aab8cc3630e32 ("vxlan: add support for underlay in non-default VRF") vxlan_find_sock() also checks if socket is assigned to the right level 3 master device when lower device is not in the default VRF. Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25vxlan: check rtnl_configure_link return code correctlyFabian Frederick
rtnl_configure_link is always checked if < 0 for error code. Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25vxlan: move encapsulation warningFabian Frederick
vxlan_xmit_one() was only called from vxlan_xmit() without rdst and info was already tested. Emit warning in that function instead Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25vxlan: add unlikely to vxlan_remcsum checkFabian Frederick
small optimization around checking as it's being done in all receptions Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25vxlan: don't collect metadata if remote checksum is wrongFabian Frederick
call vxlan_remcsum() before md filling in vxlan_rcv() Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25net: ethernet: cavium: octeon_mgmt: use phy_start and phy_stopIvan Khoronzhuk
To start also "phy state machine", with UP state as it should be, the phy_start() has to be used, in another case machine even is not triggered. After this change negotiation is supposed to be triggered by SM workqueue. It's not correct usage, but it appears after the following patch, so add it as a fix. Fixes: 74a992b3598a ("net: phy: add phy_check_link_status") Signed-off-by: Ivan Khoronzhuk <ikhoronz@cisco.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25net: bridge: mcast: remove only S,G port groups from sg_port hashNikolay Aleksandrov
We should remove a group from the sg_port hash only if it's an S,G entry. This makes it correct and more symmetric with group add. Also since *,G groups are not added to that hash we can hide a bug. Fixes: 085b53c8beab ("net: bridge: mcast: add sg_port rhashtable") Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25net: stmmac: Fix clock handling on remove pathWong Vee Khee
While unloading the dwmac-intel driver, clk_disable_unprepare() is being called twice in stmmac_dvr_remove() and intel_eth_pci_remove(). This causes kernel panic on the second call. Removing the second call of clk_disable_unprepare() in intel_eth_pci_remove(). Fixes: 09f012e64e4b ("stmmac: intel: Fix clock handling on error and remove paths") Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Voon Weifeng <weifeng.voon@intel.com> Signed-off-by: Wong Vee Khee <vee.khee.wong@intel.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25net: stmmac: Add option for VLAN filter fail queue enableChuah, Kim Tatt
Add option in plat_stmmacenet_data struct to enable VLAN Filter Fail Queuing. This option allows packets that fail VLAN filter to be routed to a specific Rx queue when Receive All is also set. When this option is enabled: - Enable VFFQ only when entering promiscuous mode, because Receive All will pass up all rx packets that failed address filtering (similar to promiscuous mode). - VLAN-promiscuous mode is never entered to allow rx packet to fail VLAN filters and get routed to selected VFFQ Rx queue. Reviewed-by: Voon Weifeng <weifeng.voon@intel.com> Reviewed-by: Ong Boon Leong <boon.leong.ong@intel.com> Signed-off-by: Chuah, Kim Tatt <kim.tatt.chuah@intel.com> Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25bpf: Add AND verifier test case where 32bit and 64bit bounds differJohn Fastabend
If we AND two values together that are known in the 32bit subregs, but not known in the 64bit registers we rely on the tnum value to report the 32bit subreg is known. And do not use mark_reg_known() directly from scalar32_min_max_and() Add an AND test to cover the case with known 32bit subreg, but unknown 64bit reg. Signed-off-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2020-09-25bpf, verifier: Remove redundant var_off.value ops in scalar known reg casesJohn Fastabend
In BPF_AND and BPF_OR alu cases we have this pattern when the src and dst tnum is a constant. 1 dst_reg->var_off = tnum_[op](dst_reg->var_off, src_reg.var_off) 2 scalar32_min_max_[op] 3 if (known) return 4 scalar_min_max_[op] 5 if (known) 6 __mark_reg_known(dst_reg, dst_reg->var_off.value [op] src_reg.var_off.value) The result is in 1 we calculate the var_off value and store it in the dst_reg. Then in 6 we duplicate this logic doing the op again on the value. The duplication comes from the the tnum_[op] handlers because they have already done the value calcuation. For example this is tnum_and(). struct tnum tnum_and(struct tnum a, struct tnum b) { u64 alpha, beta, v; alpha = a.value | a.mask; beta = b.value | b.mask; v = a.value & b.value; return TNUM(v, alpha & beta & ~v); } So lets remove the redundant op calculation. Its confusing for readers and unnecessary. Its also not harmful because those ops have the property, r1 & r1 = r1 and r1 | r1 = r1. Signed-off-by: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2020-09-25vmxnet3: fix cksum offload issues for non-udp tunnelsRonak Doshi
Commit dacce2be3312 ("vmxnet3: add geneve and vxlan tunnel offload support") added support for encapsulation offload. However, the inner offload capability is to be restrictued to UDP tunnels. This patch fixes the issue for non-udp tunnels by adding features check capability and filtering appropriate features for non-udp tunnels. Fixes: dacce2be3312 ("vmxnet3: add geneve and vxlan tunnel offload support") Signed-off-by: Ronak Doshi <doshir@vmware.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25Merge branch 'Devlink-regions-for-SJA1105-DSA-driver'David S. Miller
Vladimir Oltean says: ==================== Devlink regions for SJA1105 DSA driver This series exposes the SJA1105 static config as a devlink region. This can be used for debugging, for example with the sja1105_dump user space program that I have derived from Andrew Lunn's mv88e6xxx_dump: https://github.com/vladimiroltean/mv88e6xxx_dump/tree/sja1105 Changes in v2: - Tear down devlink params on initialization failure. - Add driver identification through devlink. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25net: dsa: sja1105: implement .devlink_info_getVladimir Oltean
Return the driver name and ASIC ID so that generic user space application are able to know they're looking at sja1105 devlink regions when pretty-printing them. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25net: dsa: sja1105: expose static config as devlink regionVladimir Oltean
As explained in Documentation/networking/dsa/sja1105.rst, this switch has a static config held in the driver's memory and re-uploaded from time to time into the device (after any major change). The format of this static config is in fact described in UM10944.pdf and it contains all the switch's settings (it also contains device ID, table CRCs, etc, just like in the manual). So it is a useful and universal devlink region to expose to user space, for debugging purposes. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25net: dsa: sja1105: move devlink param code to sja1105_devlink.cVladimir Oltean
We'll have more devlink code soon. Group it together in a separate translation object. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25Merge branch 'drivers-net-warning-clean'David S. Miller
Jesse Brandeburg says: ==================== make drivers/net/ethernet W=1 clean The Goal: move to W=1 being default for drivers/net/ethernet, and then use automation to catch more code issues (warnings) being introduced. The status: Getting much closer but not quite done for all architectures. After applying the patches below, the drivers/net/ethernet directory can be built as modules with W=1 with no warnings (so far on x64_64 arch only!). As Jakub pointed out, there is much more work to do to clean up C=1, but that will be another series of changes. This series removes 1,247 warnings and hopefully allows the ethernet directory to move forward from here without more warnings being added. There is only one objtool warning now. This version drops one of the Intel patches, as I couldn't reproduce the original issue to document the warning. Some of these patches are already sent and tested on Intel Wired Lan, but the rest of the series titled drivers/net/ethernet affects other drivers. The changes are all pretty straightforward. ==================== Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Saeed Mahameed <saeed@kernel.org>
2020-09-25drivers/net/ethernet: clean up mis-targeted commentsJesse Brandeburg
As part of the W=1 cleanups for ethernet, a million [*] driver comments had to be cleaned up to get the W=1 compilation to succeed. This change finally makes the drivers/net/ethernet tree compile with W=1 set on the command line. NOTE: The kernel uses kdoc style (see Documentation/process/kernel-doc.rst) when documenting code, not doxygen or other styles. After this patch the x86_64 build has no warnings from W=1, however scripts/kernel-doc says there are 1545 more warnings in source files, that I need to develop a script to fix in a followup patch. The errors fixed here are all kdoc of a few classes, with a few outliers: In file included from drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c:10: drivers/net/ethernet/qlogic/netxen/netxen_nic.h:1193:18: warning: ‘FW_DUMP_LEVELS’ defined but not used [-Wunused-const-variable=] 1193 | static const u32 FW_DUMP_LEVELS[] = { 0x3, 0x7, 0xf, 0x1f, 0x3f, 0x7f, 0xff }; | ^~~~~~~~~~~~~~ ... repeats 4 times... drivers/net/ethernet/sun/cassini.c:2084:24: warning: suggest braces around empty body in an ‘else’ statement [-Wempty-body] 2084 | RX_USED_ADD(page, i); drivers/net/ethernet/natsemi/ns83820.c: In function ‘phy_intr’: drivers/net/ethernet/natsemi/ns83820.c:603:6: warning: variable ‘tbisr’ set but not used [-Wunused-but-set-variable] 603 | u32 tbisr, tanar, tanlpar; | ^~~~~ drivers/net/ethernet/natsemi/ns83820.c: In function ‘ns83820_get_link_ksettings’: drivers/net/ethernet/natsemi/ns83820.c:1207:11: warning: variable ‘tanar’ set but not used [-Wunused-but-set-variable] 1207 | u32 cfg, tanar, tbicr; | ^~~~~ drivers/net/ethernet/packetengines/yellowfin.c:1063:18: warning: variable ‘yf_size’ set but not used [-Wunused-but-set-variable] 1063 | int data_size, yf_size; | ^~~~~~~ Normal kdoc fixes: warning: Function parameter or member 'x' not described in 'y' warning: Excess function parameter 'x' description in 'y' warning: Cannot understand <string> on line <NNN> - I thought it was a doc line [*] - ok it wasn't quite a million, but it felt like it. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25sfc: fix kdoc warningJesse Brandeburg
kernel-doc script as used by W=1, is confused by the macro usage inside the header describing the efx_ptp_data struct. drivers/net/ethernet/sfc/ptp.c:345: warning: Function parameter or member 'MC_CMD_PTP_IN_TRANSMIT_LENMAX' not described in 'efx_ptp_data' After some discussion on the list, break this patch out to a separate one, and fix the issue through a creative macro declaration. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Acked-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25drivers/net/ethernet: remove incorrectly formatted docJesse Brandeburg
As part of the W=1 series for ethernet, these drivers were discovered to be using kdoc style comments but were not actually doing kdoc. The kernel uses kdoc style when documenting code, not doxygen or other styles. Fixed Warnings: drivers/net/ethernet/amazon/ena/ena_com.c:613: warning: Function parameter or member 'ena_dev' not described in 'ena_com_set_llq' drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c:1540: warning: Cannot understand * @brief Set VLAN filter table drivers/net/ethernet/xilinx/ll_temac_main.c:114: warning: Function parameter or member 'lp' not described in 'temac_indirect_busywait' drivers/net/ethernet/xilinx/ll_temac_main.c:129: warning: Function parameter or member 'lp' not described in 'temac_indirect_in32' drivers/net/ethernet/xilinx/ll_temac_main.c:129: warning: Function parameter or member 'reg' not described in 'temac_indirect_in32' drivers/net/ethernet/xilinx/ll_temac_main.c:147: warning: Function parameter or member 'lp' not described in 'temac_indirect_in32_locked' drivers/net/ethernet/xilinx/ll_temac_main.c:147: warning: Function parameter or member 'reg' not described in 'temac_indirect_in32_locked' drivers/net/ethernet/xilinx/ll_temac_main.c:172: warning: Function parameter or member 'lp' not described in 'temac_indirect_out32' drivers/net/ethernet/xilinx/ll_temac_main.c:172: warning: Function parameter or member 'reg' not described in 'temac_indirect_out32' drivers/net/ethernet/xilinx/ll_temac_main.c:172: warning: Function parameter or member 'value' not described in 'temac_indirect_out32' drivers/net/ethernet/xilinx/ll_temac_main.c:188: warning: Function parameter or member 'lp' not described in 'temac_indirect_out32_locked' drivers/net/ethernet/xilinx/ll_temac_main.c:188: warning: Function parameter or member 'reg' not described in 'temac_indirect_out32_locked' drivers/net/ethernet/xilinx/ll_temac_main.c:188: warning: Function parameter or member 'value' not described in 'temac_indirect_out32_locked' drivers/net/ethernet/xilinx/ll_temac_main.c:212: warning: Function parameter or member 'lp' not described in 'temac_dma_in32_be' drivers/net/ethernet/xilinx/ll_temac_main.c:212: warning: Function parameter or member 'reg' not described in 'temac_dma_in32_be' drivers/net/ethernet/xilinx/ll_temac_main.c:228: warning: Function parameter or member 'lp' not described in 'temac_dma_out32_be' drivers/net/ethernet/xilinx/ll_temac_main.c:228: warning: Function parameter or member 'reg' not described in 'temac_dma_out32_be' drivers/net/ethernet/xilinx/ll_temac_main.c:228: warning: Function parameter or member 'value' not described in 'temac_dma_out32_be' drivers/net/ethernet/xilinx/ll_temac_main.c:247: warning: Function parameter or member 'lp' not described in 'temac_dma_dcr_in' drivers/net/ethernet/xilinx/ll_temac_main.c:247: warning: Function parameter or member 'reg' not described in 'temac_dma_dcr_in' drivers/net/ethernet/xilinx/ll_temac_main.c:255: warning: Function parameter or member 'lp' not described in 'temac_dma_dcr_out' drivers/net/ethernet/xilinx/ll_temac_main.c:255: warning: Function parameter or member 'reg' not described in 'temac_dma_dcr_out' drivers/net/ethernet/xilinx/ll_temac_main.c:255: warning: Function parameter or member 'value' not described in 'temac_dma_dcr_out' drivers/net/ethernet/xilinx/ll_temac_main.c:265: warning: Function parameter or member 'lp' not described in 'temac_dcr_setup' drivers/net/ethernet/xilinx/ll_temac_main.c:265: warning: Function parameter or member 'op' not described in 'temac_dcr_setup' drivers/net/ethernet/xilinx/ll_temac_main.c:265: warning: Function parameter or member 'np' not described in 'temac_dcr_setup' drivers/net/ethernet/xilinx/ll_temac_main.c:300: warning: Function parameter or member 'ndev' not described in 'temac_dma_bd_release' drivers/net/ethernet/xilinx/ll_temac_main.c:330: warning: Function parameter or member 'ndev' not described in 'temac_dma_bd_init' drivers/net/ethernet/xilinx/ll_temac_main.c:600: warning: Function parameter or member 'ndev' not described in 'temac_setoptions' drivers/net/ethernet/xilinx/ll_temac_main.c:600: warning: Function parameter or member 'options' not described in 'temac_setoptions' Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25drivers/net/ethernet: add some basic kdoc tagsJesse Brandeburg
A couple of drivers had a "generic documentation" section that would trigger a "can't understand" message from W=1 compiles. Fix by using correct DOC: tags in the generic sections. Fixed Warnings: drivers/net/ethernet/arc/emac_arc.c:4: info: Scanning doc for c drivers/net/ethernet/cadence/macb_pci.c:3: warning: missing initial short description on line: * Cadence GEM PCI wrapper. drivers/net/ethernet/cadence/macb_pci.c:3: info: Scanning doc for Cadence Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25drivers/net/ethernet: handle one warning explicitlyJesse Brandeburg
While fixing the W=1 builds, this warning came up because the developers used a very tricky way to get structures initialized to a non-zero value, but this causes GCC to warn about an override. In this case the override was intentional, so just disable the warning for this code with a kernel macro that results in disabling the warning for compiles on GCC versions after 8. It is not appropriate to change the struct to initialize all the values as it will just add a lot more code for no value. The code is completely correct as is, we just want to acknowledge that this code could generate a warning and we're ok with that. NOTE: the __diag_ignore macro currently only accepts a second argument of 8 (version 80000), it's either use this one or open code the pragma. Fixed Warnings example (all the same): drivers/net/ethernet/renesas/sh_eth.c:51:12: warning: initialized field overwritten [-Woverride-init] drivers/net/ethernet/renesas/sh_eth.c:52:12: warning: initialized field overwritten [-Woverride-init] drivers/net/ethernet/renesas/sh_eth.c:53:13: warning: initialized field overwritten [-Woverride-init] + 256 more... Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25drivers/net/ethernet: rid ethernet of no-prototype warningsJesse Brandeburg
The W=1 builds showed a few files exporting functions (non-static) that were not prototyped. What actually happened is that there were prototypes, but the include file was forgotten in the implementation file. Add the include file and remove the warnings. Fixed Warnings: drivers/net/ethernet/cavium/liquidio/cn68xx_device.c:124:5: warning: no previous prototype for ‘lio_setup_cn68xx_octeon_device’ [-Wmissing-prototypes] drivers/net/ethernet/cavium/liquidio/octeon_mem_ops.c:159:1: warning: no previous prototype for ‘octeon_pci_read_core_mem’ [-Wmissing-prototypes] drivers/net/ethernet/cavium/liquidio/octeon_mem_ops.c:168:1: warning: no previous prototype for ‘octeon_pci_write_core_mem’ [-Wmissing-prototypes] drivers/net/ethernet/cavium/liquidio/octeon_mem_ops.c:176:5: warning: no previous prototype for ‘octeon_read_device_mem64’ [-Wmissing-prototypes] drivers/net/ethernet/cavium/liquidio/octeon_mem_ops.c:185:5: warning: no previous prototype for ‘octeon_read_device_mem32’ [-Wmissing-prototypes] drivers/net/ethernet/cavium/liquidio/octeon_mem_ops.c:194:6: warning: no previous prototype for ‘octeon_write_device_mem32’ [-Wmissing-prototypes] drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c:453:6: warning: no previous prototype for ‘hclge_dcb_ops_set’ [-Wmissing-prototypes] Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25drivers/net/ethernet: clean up unused assignmentsJesse Brandeburg
As part of the W=1 compliation series, these lines all created warnings about unused variables that were assigned a value. Most of them are from register reads, but some are just picking up a return value from a function and never doing anything with it. Fixed warnings: .../ethernet/brocade/bna/bnad.c:3280:6: warning: variable ‘rx_count’ set but not used [-Wunused-but-set-variable] .../ethernet/brocade/bna/bnad.c:3280:6: warning: variable ‘rx_count’ set but not used [-Wunused-but-set-variable] .../ethernet/cortina/gemini.c:512:6: warning: variable ‘val’ set but not used [-Wunused-but-set-variable] .../ethernet/cortina/gemini.c:2110:21: warning: variable ‘config0’ set but not used [-Wunused-but-set-variable] .../ethernet/cavium/liquidio/octeon_device.c:1327:6: warning: variable ‘val32’ set but not used [-Wunused-but-set-variable] .../ethernet/cavium/liquidio/octeon_device.c:1358:6: warning: variable ‘val32’ set but not used [-Wunused-but-set-variable] .../ethernet/dec/tulip/media.c:322:8: warning: variable ‘setup’ set but not used [-Wunused-but-set-variable] .../ethernet/dec/tulip/de4x5.c:4928:13: warning: variable ‘r3’ set but not used [-Wunused-but-set-variable] .../ethernet/micrel/ksz884x.c:1652:7: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable] .../ethernet/micrel/ksz884x.c:1652:7: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable] .../ethernet/micrel/ksz884x.c:1652:7: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable] .../ethernet/micrel/ksz884x.c:1652:7: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable] .../ethernet/micrel/ksz884x.c:4981:6: warning: variable ‘rx_status’ set but not used [-Wunused-but-set-variable] .../ethernet/micrel/ksz884x.c:6510:6: warning: variable ‘rc’ set but not used [-Wunused-but-set-variable] .../ethernet/micrel/ksz884x.c:6087: warning: cannot understand function prototype: 'struct hw_regs ' .../ethernet/microchip/lan743x_main.c:161:6: warning: variable ‘int_en’ set but not used [-Wunused-but-set-variable] .../ethernet/microchip/lan743x_main.c:1702:6: warning: variable ‘int_sts’ set but not used [-Wunused-but-set-variable] .../ethernet/microchip/lan743x_main.c:3041:6: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable] .../ethernet/natsemi/ns83820.c:603:6: warning: variable ‘tbisr’ set but not used [-Wunused-but-set-variable] .../ethernet/natsemi/ns83820.c:1207:11: warning: variable ‘tanar’ set but not used [-Wunused-but-set-variable] .../ethernet/marvell/mvneta.c:754:6: warning: variable ‘dummy’ set but not used [-Wunused-but-set-variable] .../ethernet/neterion/vxge/vxge-traffic.c:33:6: warning: variable ‘val64’ set but not used [-Wunused-but-set-variable] .../ethernet/neterion/vxge/vxge-traffic.c:160:6: warning: variable ‘val64’ set but not used [-Wunused-but-set-variable] .../ethernet/neterion/vxge/vxge-traffic.c:490:6: warning: variable ‘val32’ set but not used [-Wunused-but-set-variable] .../ethernet/neterion/vxge/vxge-traffic.c:2378:6: warning: variable ‘val64’ set but not used [-Wunused-but-set-variable] .../ethernet/packetengines/yellowfin.c:1063:18: warning: variable ‘yf_size’ set but not used [-Wunused-but-set-variable] .../ethernet/realtek/8139cp.c:1242:6: warning: variable ‘rc’ set but not used [-Wunused-but-set-variable] .../ethernet/mellanox/mlx4/en_tx.c:858:6: warning: variable ‘ring_cons’ set but not used [-Wunused-but-set-variable] .../ethernet/sis/sis900.c:792:6: warning: variable ‘status’ set but not used [-Wunused-but-set-variable] .../ethernet/sfc/falcon/farch.c:878:11: warning: variable ‘rx_ev_pkt_type’ set but not used [-Wunused-but-set-variable] .../ethernet/sfc/falcon/farch.c:877:23: warning: variable ‘rx_ev_mcast_pkt’ set but not used [-Wunused-but-set-variable] .../ethernet/sfc/falcon/farch.c:877:7: warning: variable ‘rx_ev_hdr_type’ set but not used [-Wunused-but-set-variable] .../ethernet/sfc/falcon/farch.c:876:7: warning: variable ‘rx_ev_other_err’ set but not used [-Wunused-but-set-variable] .../ethernet/sfc/falcon/farch.c:1646:21: warning: variable ‘buftbl_min’ set but not used [-Wunused-but-set-variable] .../ethernet/sfc/falcon/farch.c:2535:32: warning: variable ‘spec’ set but not used [-Wunused-but-set-variable] .../ethernet/via/via-velocity.c:880:6: warning: variable ‘curr_status’ set but not used [-Wunused-but-set-variable] .../ethernet/ti/tlan.c:656:6: warning: variable ‘rc’ set but not used [-Wunused-but-set-variable] .../ethernet/ti/davinci_emac.c:1230:6: warning: variable ‘num_tx_pkts’ set but not used [-Wunused-but-set-variable] .../ethernet/synopsys/dwc-xlgmac-common.c:516:8: warning: variable ‘str’ set but not used [-Wunused-but-set-variable] .../ethernet/ti/cpsw_new.c:1662:22: warning: variable ‘priv’ set but not used [-Wunused-but-set-variable] The register reads should be OK, because the current implementation of readl and friends will always execute even without an lvalue. When it makes sense, just remove the lvalue assignment and the local. Other times, just remove the offending code, and occasionally, just mark the variable as maybe unused since it could be used in an ifdef or debug scenario. Only compile tested with W=1. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Acked-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25intel: handle unused assignmentsJesse Brandeburg
Remove variables that were storing a return value from a register read or other read, where the return value wasn't used. Those conversions to remove the lvalue of the assignment should be safe because the readl memory mapped reads are marked volatile and should not be optimized out without an lvalue (I suspect a very long time ago this wasn't guaranteed as it is today). These changes are part of a separate patch to make it easier to review. Warnings Fixed: .../intel/e100.c:2596:9: warning: variable ‘err’ set but not used [-Wunused-but-set-variable] .../intel/ixgb/ixgb_hw.c:101:6: warning: variable ‘icr_reg’ set but not used [-Wunused-but-set-variable] .../intel/ixgb/ixgb_hw.c:277:6: warning: variable ‘ctrl_reg’ set but not used [-Wunused-but-set-variable] .../intel/ixgb/ixgb_hw.c:952:15: warning: variable ‘temp_reg’ set but not used [-Wunused-but-set-variable] .../intel/ixgb/ixgb_hw.c:1164:7: warning: variable ‘mdio_reg’ set but not used [-Wunused-but-set-variable] .../intel/e1000/e1000_hw.c:132:6: warning: variable ‘ret_val’ set but not used [-Wunused-but-set-variable] .../intel/e1000/e1000_hw.c:380:6: warning: variable ‘icr’ set but not used [-Wunused-but-set-variable] .../intel/e1000/e1000_hw.c:2378:6: warning: variable ‘signal’ set but not used [-Wunused-but-set-variable] .../intel/e1000/e1000_hw.c:2374:6: warning: variable ‘ctrl’ set but not used [-Wunused-but-set-variable] .../intel/e1000/e1000_hw.c:2373:6: warning: variable ‘rxcw’ set but not used [-Wunused-but-set-variable] .../intel/e1000/e1000_hw.c:4678:15: warning: variable ‘temp’ set but not used [-Wunused-but-set-variable] Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25intel-ethernet: clean up W=1 warnings in kdocJesse Brandeburg
This takes care of all of the trivial W=1 fixes in the Intel Ethernet drivers, which allows developers and maintainers to build more of the networking tree with more complete warning checks. There are three classes of kdoc warnings fixed: - cannot understand function prototype: 'x' - Excess function parameter 'x' description in 'y' - Function parameter or member 'x' not described in 'y' All of the changes were trivial comment updates on function headers. Inspired by Lee Jones' series of wireless work to do the same. Compile tested only, and passes simple test of $ git ls-files *.[ch] | egrep drivers/net/ethernet/intel | \ xargs scripts/kernel-doc -none Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25Merge branch '100GbE' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue Tony Nguyen says: ==================== Intel Wired LAN Driver Updates 2020-09-25 This series contains updates to the iavf and ice driver. Sylwester fixes a crash with iavf resume due to getting the wrong pointers. Ani fixes a call trace in ice resume by calling pci_save_state(). Jakes fixes memory leaks in case of register_netdev() failure or ice_cfg_vsi_lan() failure for the ice driver. v2: Rebased; no other changes ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25Merge tag 'mips_fixes_5.9_3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux Pull MIPS fixes from Thomas Bogendoerfer: - fixed FP register access on Loongsoon-3 - added missing 1074 cpu handling - fixed Loongson2ef build error * tag 'mips_fixes_5.9_3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: MIPS: BCM47XX: Remove the needless check with the 1074K MIPS: Add the missing 'CPU_1074K' into __get_cpu_type() MIPS: Loongson2ef: Disable Loongson MMI instructions MIPS: Loongson-3: Fix fp register access if MSA enabled
2020-09-25Merge tag 'spi-fix-v5.9-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi fixes from Mark Brown: "A small collection of driver specific fixes, the fsl-espi and bcm-qspi changes in particular have been causing breakage for users" * tag 'spi-fix-v5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi: bcm-qspi: Fix probe regression on iProc platforms spi: fsl-dspi: fix use-after-free in remove path spi: fsl-espi: Only process interrupts for expected events spi: bcm2835: Make polling_limit_us static spi: spi-fsl-dspi: use XSPI mode instead of DMA for DPAA2 SoCs
2020-09-25Merge tag 'regulator-fix-v5.9-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator Pull regulator fix from Mark Brown: "A single fix for incorrect specification of some of the register fields on axp20x devices which would break voltage setting on affected systems" * tag 'regulator-fix-v5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: regulator: axp20x: fix LDO2/4 description
2020-09-25Merge tag 'regmap-fix-v5.9-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap Pull regmap fixes from Mark Brown: "Two issues here - one is a fix for use after free issues in the case where a regmap overrides its name using something dynamically generated, the other is that we weren't handling access checks non-incrementing I/O on registers within paged register regions correctly resulting in spurious errors. Both of these are quite rare but serious if they occur" * tag 'regmap-fix-v5.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: fix page selection for noinc writes regmap: fix page selection for noinc reads regmap: debugfs: Add back in erroneously removed initialisation of ret regmap: debugfs: Fix handling of name string for debugfs init delays
2020-09-25io_uring: ensure async buffered read-retry is setup properlyJens Axboe
A previous commit for fixing up short reads botched the async retry path, so we ended up going to worker threads more often than we should. Fix this up, so retries work the way they originally were intended to. Fixes: 227c0c9673d8 ("io_uring: internally retry short reads") Reported-by: Hao_Xu <haoxu@linux.alibaba.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-09-25Merge branch 'enable-bpf_skc-cast-for-networking-progs'Alexei Starovoitov
Martin KaFai Lau says: ==================== This set allows networking prog type to directly read fields from the in-kernel socket type, e.g. "struct tcp_sock". Patch 2 has the details on the use case. v3: - Pass arg_btf_id instead of fn into check_reg_type() in Patch 1 (Lorenz) - Move arg_btf_id from func_proto to struct bpf_reg_types in Patch 2 (Lorenz) - Remove test_sock_fields from .gitignore in Patch 8 (Andrii) - Add tests to have better coverage on the modified helpers (Alexei) Patch 13 is added. - Use "void *sk" as the helper argument in UAPI bpf.h v3: - ARG_PTR_TO_SOCK_COMMON_OR_NULL was attempted in v2. The _OR_NULL was needed because the PTR_TO_BTF_ID could be NULL but note that a could be NULL PTR_TO_BTF_ID is not a scalar NULL to the verifier. "_OR_NULL" implicitly gives an expectation that the helper can take a scalar NULL which does not make sense in most (except one) helpers. Passing scalar NULL should be rejected at the verification time. Thus, this patch uses ARG_PTR_TO_BTF_ID_SOCK_COMMON to specify that the helper can take both the btf-id ptr or the legacy PTR_TO_SOCK_COMMON but not scalar NULL. It requires the func_proto to explicitly specify the arg_btf_id such that there is a very clear expectation that the helper can handle a NULL PTR_TO_BTF_ID. v2: - Add ARG_PTR_TO_SOCK_COMMON_OR_NULL (Lorenz) ==================== Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2020-09-25net: vlan: Avoid using BUG() in vlan_proto_idx()Florian Fainelli
While we should always make sure that we specify a valid VLAN protocol to vlan_proto_idx(), killing the machine when an invalid value is specified is too harsh and not helpful for debugging. All callers are capable of dealing with an error returned by vlan_proto_idx() so check the index value and propagate it accordingly. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-09-25bpf: selftest: Add test_btf_skc_cls_ingressMartin KaFai Lau
This patch attaches a classifier prog to the ingress filter. It exercises the following helpers with different socket pointer types in different logical branches: 1. bpf_sk_release() 2. bpf_sk_assign() 3. bpf_skc_to_tcp_request_sock(), bpf_skc_to_tcp_sock() 4. bpf_tcp_gen_syncookie, bpf_tcp_check_syncookie Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200925000458.3859627-1-kafai@fb.com
2020-09-25bpf: selftest: Remove enum tcp_ca_state from bpf_tcp_helpers.hMartin KaFai Lau
The enum tcp_ca_state is available in <linux/tcp.h>. Remove it from the bpf_tcp_helpers.h to avoid conflict when the bpf prog needs to include both both <linux/tcp.h> and bpf_tcp_helpers.h. Modify the bpf_cubic.c and bpf_dctcp.c to use <linux/tcp.h> instead. The <linux/stddef.h> is needed by <linux/tcp.h>. Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200925000452.3859313-1-kafai@fb.com
2020-09-25bpf: selftest: Use bpf_skc_to_tcp_sock() in the sock_fields testMartin KaFai Lau
This test uses bpf_skc_to_tcp_sock() to get a kernel tcp_sock ptr "ktp". Access the ktp->lsndtime and also pass ktp to bpf_sk_storage_get(). It also exercises the bpf_sk_cgroup_id() and bpf_sk_ancestor_cgroup_id() with the "ktp". To do that, a parent cgroup and a child cgroup are created. The bpf prog is attached to the child cgroup. Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200925000446.3858975-1-kafai@fb.com
2020-09-25bpf: selftest: Use network_helpers in the sock_fields testMartin KaFai Lau
This patch uses start_server() and connect_to_fd() from network_helpers.h to remove the network testing boiler plate codes. epoll is no longer needed also since the timeout has already been taken care of also. Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200925000440.3858639-1-kafai@fb.com
2020-09-25bpf: selftest: Adapt sock_fields test to use skel and global variablesMartin KaFai Lau
skel is used. Global variables are used to store the result from bpf prog. addr_map, sock_result_map, and tcp_sock_result_map are gone. Instead, global variables listen_tp, srv_sa6, cli_tp,, srv_tp, listen_sk, srv_sk, and cli_sk are added. Because of that, bpf_addr_array_idx and bpf_result_array_idx are also no longer needed. CHECK() macro from test_progs.h is reused and bail as soon as a CHECK failure. shutdown() is used to ensure the previous data-ack is received. The bytes_acked, bytes_received, and the pkt_out_cnt checks are using "<" to accommodate the final ack may not have been received/sent. It is enough since it is not the focus of this test. The sk local storage is all initialized to 0xeB9F now, so the check_sk_pkt_out_cnt() always checks with the 0xeB9F base. It is to keep things simple. The next patch will reuse helpers from network_helpers.h to simplify things further. Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200925000434.3858204-1-kafai@fb.com
2020-09-25bpf: selftest: Move sock_fields test into test_progsMartin KaFai Lau
This is a mechanical change to 1. move test_sock_fields.c to prog_tests/sock_fields.c 2. rename progs/test_sock_fields_kern.c to progs/test_sock_fields.c Minimal change is made to the code itself. Next patch will make changes to use new ways of writing test, e.g. use skel and global variables. Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200925000427.3857814-1-kafai@fb.com
2020-09-25bpf: selftest: Add ref_tracking verifier test for bpf_skc castingMartin KaFai Lau
The patch tests for: 1. bpf_sk_release() can be called on a tcp_sock btf_id ptr. 2. Ensure the tcp_sock btf_id pointer cannot be used after bpf_sk_release(). Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Lorenz Bauer <lmb@cloudflare.com> Link: https://lore.kernel.org/bpf/20200925000421.3857616-1-kafai@fb.com
2020-09-25bpf: Change bpf_sk_assign to accept ARG_PTR_TO_BTF_ID_SOCK_COMMONMartin KaFai Lau
This patch changes the bpf_sk_assign() to take ARG_PTR_TO_BTF_ID_SOCK_COMMON such that they will work with the pointer returned by the bpf_skc_to_*() helpers also. The bpf_sk_lookup_assign() is taking ARG_PTR_TO_SOCKET_"OR_NULL". Meaning it specifically takes a literal NULL. ARG_PTR_TO_BTF_ID_SOCK_COMMON does not allow a literal NULL, so another ARG type is required for this purpose and another follow-up patch can be used if there is such need. Signed-off-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200925000415.3857374-1-kafai@fb.com
generated by cgit (git 2.34.1) at 2025-09-15 18:51:10 +0000