- 19 May, 2023 3 commits
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Russell King (Oracle) authored
Swap the order of the rtnl and st_mutex locks - st_mutex is now nested beneath rtnl lock instead of rtnl being beneath st_mutex. This will allow us to hold st_mutex only while manipulating the module's hardware or software control state. Reviewed-by:
Simon Horman <simon.horman@corigine.com> Signed-off-by:
Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Signed-off-by:
Jakub Kicinski <kuba@kernel.org>
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Russell King (Oracle) authored
As preparation to moving st_mutex inside rtnl_lock, we need to first move the rtnl lock to cover reading the state. Reviewed-by:
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Russell King (Oracle) authored
There are a couple of locations in the code where we modify sfp->state, and then call sfp_set_state(, sfp->state) to update the outputs/soft state to control the module. Provide a helper which takes a mask and new state so that this is encapsulated in one location. Reviewed-by:
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- 18 May, 2023 32 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski authored
Conflicts: drivers/net/ethernet/freescale/fec_main.c 6ead9c98 ("net: fec: remove the xdp_return_frame when lack of tx BDs") 144470c8 ("net: fec: using the standard return codes when xdp xmit errors") Signed-off-by:
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https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-nextJakub Kicinski authored
Florian Westphal says: ==================== Netfilter updates for net-next nftables updates: 1. Allow key existence checks with maps. At the moment the kernel requires userspace to pass a destination register for the associated value, make this optional so userspace can query if the key exists, just like with normal sets. 2. nftables maintains a counter per set that holds the number of elements. This counter gets decremented on element removal, but its only incremented if the set has a upper maximum value. Increment unconditionally, this will allow us to update the maximum value later on. 3. At DCCP option maching, from Jeremy Sowden. 4. use struct_size macro, from Christophe JAILLET. Conntrack: 5. Squash holes in struct nf_conntrack_expect, also Christophe JAILLET. 6. Allow clash resolution for GRE Protocol to avoid a packet drop, from Faicker Mo. Flowtable: Simplify route logic and split large functions into smaller chunks, from Pablo Neira Ayuso. * tag 'nf-next-2023-05-18' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next: netfilter: flowtable: split IPv6 datapath in helper functions netfilter: flowtable: split IPv4 datapath in helper functions netfilter: flowtable: simplify route logic netfilter: conntrack: allow insertion clash of gre protocol netfilter: nft_set_pipapo: Use struct_size() netfilter: Reorder fields in 'struct nf_conntrack_expect' netfilter: nft_exthdr: add boolean DCCP option matching netfilter: nf_tables: always increment set element count netfilter: nf_tables: relax set/map validation checks ==================== Link: https://lore.kernel.org/r/20230518100759.84858-1-fw@strlen.deSigned-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netLinus Torvalds authored
Pull networking fixes from Paolo Abeni: "Including fixes from can, xfrm, bluetooth and netfilter. Current release - regressions: - ipv6: fix RCU splat in ipv6_route_seq_show() - wifi: iwlwifi: disable RFI feature Previous releases - regressions: - tcp: fix possible sk_priority leak in tcp_v4_send_reset() - tipc: do not update mtu if msg_max is too small in mtu negotiation - netfilter: fix null deref on element insertion - devlink: change per-devlink netdev notifier to static one - phylink: fix ksettings_set() ethtool call - wifi: mac80211: fortify the spinlock against deadlock by interrupt - wifi: brcmfmac: check for probe() id argument being NULL - eth: ice: - fix undersized tx_flags variable - fix ice VF reset during iavf initialization - eth: hns3: fix sending pfc frames after reset issue Previous releases - always broken: - xfrm: release all offloaded policy memory - nsh: use correct mac_offset to unwind gso skb in nsh_gso_segment() - vsock: avoid to close connected socket after the timeout - dsa: rzn1-a5psw: enable management frames for CPU port - eth: virtio_net: fix error unwinding of XDP initialization - eth: tun: fix memory leak for detached NAPI queue. Misc: - MAINTAINERS: sctp: move Neil to CREDITS" * tag 'net-6.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (107 commits) MAINTAINERS: skip CCing netdev for Bluetooth patches mdio_bus: unhide mdio_bus_init prototype bridge: always declare tunnel functions atm: hide unused procfs functions net: isa: include net/Space.h Revert "ARM: dts: stm32: add CAN support on stm32f746" netfilter: nft_set_rbtree: fix null deref on element insertion netfilter: nf_tables: fix nft_trans type confusion netfilter: conntrack: define variables exp_nat_nla_policy and any_addr with CONFIG_NF_NAT net: wwan: t7xx: Ensure init is completed before system sleep net: selftests: Fix optstring net: pcs: xpcs: fix C73 AN not getting enabled net: wwan: iosm: fix NULL pointer dereference when removing device vlan: fix a potential uninit-value in vlan_dev_hard_start_xmit() mailmap: add entries for Nikolay Aleksandrov igb: fix bit_shift to be in [1..8] range net: dsa: mv88e6xxx: Fix mv88e6393x EPC write command offset cassini: Fix a memory leak in the error handling path of cas_init_one() tun: Fix memory leak for detached NAPI queue. can: kvaser_pciefd: Disable interrupts in probe error path ... -
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediaLinus Torvalds authored
Pull media fixes from Mauro Carvalho Chehab: "Several fixes for the dvb core and drivers: - fix UAF and null pointer de-reference in DVB core - fix kernel runtime warning for blocking operation in wait_event*() in dvb core - fix write size bug in DVB conditional access core - fix dvb demux continuity counter debug check logic - randconfig build fixes in pvrusb2 and mn88443x - fix memory leak in ttusb-dec - fix netup_unidvb probe-time error check logic - improve error handling in dw2102 if it can't retrieve DVB MAC address" * tag 'media/v6.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: media: dvb-core: Fix use-after-free due to race condition at dvb_ca_en50221 media: dvb-core: Fix kernel WARNING for blocking operation in wait_event*() media: dvb-core: Fix use-after-free due to race at dvb_register_device() media: dvb-core: Fix use-after-free due on race condition at dvb_net media: dvb-core: Fix use-after-free on race condition at dvb_frontend media: mn88443x: fix !CONFIG_OF error by drop of_match_ptr from ID table media: ttusb-dec: fix memory leak in ttusb_dec_exit_dvb() media: dvb_ca_en50221: fix a size write bug media: netup_unidvb: fix irq init by register it at the end of probe media: dvb-usb: dw2102: fix uninit-value in su3000_read_mac_address media: dvb-usb: digitv: fix null-ptr-deref in digitv_i2c_xfer() media: dvb-usb-v2: rtl28xxu: fix null-ptr-deref in rtl28xxu_i2c_xfer media: dvb-usb-v2: ce6230: fix null-ptr-deref in ce6230_i2c_master_xfer() media: dvb-usb-v2: ec168: fix null-ptr-deref in ec168_i2c_xfer() media: dvb-usb: az6027: fix three null-ptr-deref in az6027_i2c_xfer() media: netup_unidvb: fix use-after-free at del_timer() media: dvb_demux: fix a bug for the continuity counter media: pvrusb2: fix DVB_CORE dependency -
Paolo Abeni authored
Horatiu Vultur says: ==================== net: lan966x: Add support for PCP, DEI, DSCP This patch series extends lan966x to offload to the hardware the following features: - PCP: this configuration is per port both at ingress and egress. - App trust: which allows to specify a trust order of app selectors. This can be PCP or DSCP or DSCP/PCP. - default priority - DSCP: this configuration is shared between the ports both at ingress and egress. ==================== Link: https://lore.kernel.org/r/20230516201408.3172428-1-horatiu.vultur@microchip.comSigned-off-by:
Paolo Abeni <pabeni@redhat.com>
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Horatiu Vultur authored
Add support for DSCP rewrite in lan966x driver. On egress DSCP is rewritten from either classified DSCP, or frame DSCP. Classified DSCP is determined by the Analyzer Classifier on ingress, and is mapped from classified QoS class and DP level. Classification of DSCP is by default enabled for all ports. It is required that DSCP is trusted for the egress port *and* rewrite table is not empty, in order to rewrite DSCP based on classified DSCP, otherwise DSCP is always rewritten from frame DSCP. Reviewed-by:
Daniel Machon <daniel.machon@microchip.com> Signed-off-by:
Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by:
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Horatiu Vultur authored
Add support for rewrite of PCP and DEI value, based on QoS and DP level. The DCB rewrite table is queried for mappings between priority and PCP/DEI. The classified DP level is then encoded in the DEI bit, if a mapping for DEI exists. Reviewed-by:
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Horatiu Vultur authored
Add support for offloading default prio. Reviewed-by:
Piotr Raczynski <piotr.raczynski@intel.com> Signed-off-by:
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Horatiu Vultur authored
Add support for offloading dscp app entries. The dscp values are global for all lan966x ports. Reviewed-by:
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Horatiu Vultur authored
Make use of set/getapptrust() to implement per-selector trust and trust order. Reviewed-by:
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Horatiu Vultur authored
Add support for offloading pcp app entries. Lan966x has 8 priority queues per port and for each priority it also has a drop precedence. Reviewed-by:
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Horatiu Vultur authored
Add the registers that are needed to configure the PCP, DEI and DSCP of the switch both at ingress and also at egress. Reviewed-by:
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Paolo Abeni authored
Merge tag 'linux-can-fixes-for-6.4-20230518' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can Marc Kleine-Budde says: ==================== pull-request: can 2023-05-18 this is a pull request of 7 patches for net/master. The first 6 patches are by Jimmy Assarsson and fix several bugs in the kvaser_pciefd driver. The latest patch is from me and reverts a change in stm32f746.dtsi that causes build errors due to a missing dependent patch. * tag 'linux-can-fixes-for-6.4-20230518' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can: Revert "ARM: dts: stm32: add CAN support on stm32f746" can: kvaser_pciefd: Disable interrupts in probe error path can: kvaser_pciefd: Do not send EFLUSH command on TFD interrupt can: kvaser_pciefd: Empty SRB buffer in probe can: kvaser_pciefd: Call request_irq() before enabling interrupts can: kvaser_pciefd: Clear listen-only bit if not explicitly requested can: kvaser_pciefd: Set CAN_STATE_STOPPED in kvaser_pciefd_stop() ==================== Link: https://lore.kernel.org/r/20230518073241.1110453-1-mkl@pengutronix.deSigned-off-by:
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Pablo Neira Ayuso authored
Add context structure and helper functions to look up for a matching IPv6 entry in the flowtable and to forward packets. No functional changes are intended. Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by:
Florian Westphal <fw@strlen.de>
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Pablo Neira Ayuso authored
Add context structure and helper functions to look up for a matching IPv4 entry in the flowtable and to forward packets. No functional changes are intended. Signed-off-by:
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Pablo Neira Ayuso authored
Grab reference to dst from skbuff earlier to simplify route caching. Signed-off-by:
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Faicker Mo authored
NVGRE tunnel is used in the VM-to-VM communications. The VM packets are encapsulated in NVGRE and sent from the host. For NVGRE there are two tuples(outer sip and outer dip) in the host conntrack item. Insertion clashes are more likely to happen if the concurrent connections are sent from the VM. Signed-off-by:
Faicker Mo <faicker.mo@ucloud.cn> Signed-off-by:
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Christophe JAILLET authored
Use struct_size() instead of hand writing it. This is less verbose and more informative. Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by:
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Christophe JAILLET authored
Group some variables based on their sizes to reduce holes. On x86_64, this shrinks the size of 'struct nf_conntrack_expect' from 264 to 256 bytes. This structure deserve a dedicated cache, so reducing its size looks nice. Signed-off-by:
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Jeremy Sowden authored
The xt_dccp iptables module supports the matching of DCCP packets based on the presence or absence of DCCP options. Extend nft_exthdr to add this functionality to nftables. Link: https://bugzilla.netfilter.org/show_bug.cgi?id=930Signed-off-by:
Jeremy Sowden <jeremy@azazel.net> Signed-off-by:
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Florian Westphal authored
At this time, set->nelems counter only increments when the set has a maximum size. All set elements decrement the counter unconditionally, this is confusing. Increment the counter unconditionally to make this symmetrical. This would also allow changing the set maximum size after set creation in a later patch. Signed-off-by: -
Florian Westphal authored
Its currently not allowed to perform queries on a map, for example: table t { map m { typeof ip saddr : meta mark .. chain c { ip saddr @M counter will fail, because kernel requires that userspace provides a destination register when the referenced set is a map. However, internally there is no real distinction between sets and maps, maps are just sets where each key is associated with a value. Relax this so that maps can be used just like sets. This allows to have rules that query if a given key exists without making use of the associated value. This also permits != checks which don't work for map lookups. When no destination reg is given for a map, then permit this for named maps. Data and dump paths need to be updated to consider priv->dreg_set instead of the 'set-is-a-map' check. Checks in reduce and validate callbacks are not changed, this can be relaxed later if a need arises. Signed-off-by: -
https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nfJakub Kicinski authored
Florian Westphal says: ==================== Netfilter fixes for net 1. Silence warning about unused variable when CONFIG_NF_NAT=n, from Tom Rix. 2. nftables: Fix possible out-of-bounds access, from myself. 3. nftables: fix null deref+UAF during element insertion into rbtree, also from myself. * tag 'nf-23-05-17' of https://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf: netfilter: nft_set_rbtree: fix null deref on element insertion netfilter: nf_tables: fix nft_trans type confusion netfilter: conntrack: define variables exp_nat_nla_policy and any_addr with CONFIG_NF_NAT ==================== Link: https://lore.kernel.org/r/20230517123756.7353-1-fw@strlen.deSigned-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wirelessJakub Kicinski authored
Kalle Valo says: ==================== wireless fixes for v6.4 A lot of fixes this time, for both the stack and the drivers. The brcmfmac resume fix has been reported by several people so I would say it's the most important here. The iwlwifi RFI workaround is also something which was reported as a regression recently. * tag 'wireless-2023-05-17' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless: (31 commits) wifi: b43: fix incorrect __packed annotation wifi: rtw88: sdio: Always use two consecutive bytes for word operations mac80211_hwsim: fix memory leak in hwsim_new_radio_nl wifi: iwlwifi: mvm: Add locking to the rate read flow wifi: iwlwifi: Don't use valid_links to iterate sta links wifi: iwlwifi: mvm: don't trust firmware n_channels wifi: iwlwifi: mvm: fix OEM's name in the tas approved list wifi: iwlwifi: fix OEM's name in the ppag approved list wifi: iwlwifi: mvm: fix initialization of a return value wifi: iwlwifi: mvm: fix access to fw_id_to_mac_id wifi: iwlwifi: fw: fix DBGI dump wifi: iwlwifi: mvm: fix number of concurrent link checks wifi: iwlwifi: mvm: fix cancel_delayed_work_sync() deadlock wifi: iwlwifi: mvm: don't double-init spinlock wifi: iwlwifi: mvm: always free dup_data wifi: mac80211: recalc chanctx mindef before assigning wifi: mac80211: consider reserved chanctx for mindef wifi: mac80211: simplify chanctx allocation wifi: mac80211: Abort running color change when stopping the AP wifi: mac80211: fix min center freq offset tracing ... ==================== Link: https://lore.kernel.org/r/20230517151914.B0AF6C433EF@smtp.kernel.orgSigned-off-by:
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Jakub Kicinski authored
As requested by Marcel skip netdev for Bluetooth patches. Bluetooth has its own mailing list and overloading netdev leads to fewer people reading it. Link: https://lore.kernel.org/netdev/639C8EA4-1F6E-42BE-8F04-E4A753A6EFFC@holtmann.org/Reviewed-by:
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Arnd Bergmann authored
mdio_bus_init() is either used as a local module_init() entry, or it gets called in phy_device.c. In the former case, there is no declaration, which causes a warning: drivers/net/phy/mdio_bus.c:1371:12: error: no previous prototype for 'mdio_bus_init' [-Werror=missing-prototypes] Remove the #ifdef around the declaration to avoid the warning.. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20230516194625.549249-4-arnd@kernel.orgSigned-off-by:
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Arnd Bergmann authored
When CONFIG_BRIDGE_VLAN_FILTERING is disabled, two functions are still defined but have no prototype or caller. This causes a W=1 warning for the missing prototypes: net/bridge/br_netlink_tunnel.c:29:6: error: no previous prototype for 'vlan_tunid_inrange' [-Werror=missing-prototypes] net/bridge/br_netlink_tunnel.c:199:5: error: no previous prototype for 'br_vlan_tunnel_info' [-Werror=missing-prototypes] The functions are already contitional on CONFIG_BRIDGE_VLAN_FILTERING, and I coulnd't easily figure out the right set of #ifdefs, so just move the declarations out of the #ifdef to avoid the warning, at a small cost in code size over a more elaborate fix. Fixes: 188c67dd ("net: bridge: vlan options: add support for tunnel id dumping") Fixes: 569da082 ("net: bridge: vlan options: add support for tunnel mapping set/del") Signed-off-by:
Nikolay Aleksandrov <razor@blackwall.org> Link: https://lore.kernel.org/r/20230516194625.549249-3-arnd@kernel.orgSigned-off-by:
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Arnd Bergmann authored
When CONFIG_PROC_FS is disabled, the function declarations for some procfs functions are hidden, but the definitions are still build, as shown by this compiler warning: net/atm/resources.c:403:7: error: no previous prototype for 'atm_dev_seq_start' [-Werror=missing-prototypes] net/atm/resources.c:409:6: error: no previous prototype for 'atm_dev_seq_stop' [-Werror=missing-prototypes] net/atm/resources.c:414:7: error: no previous prototype for 'atm_dev_seq_next' [-Werror=missing-prototypes] Add another #ifdef to leave these out of the build. Signed-off-by:
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Arnd Bergmann authored
The legacy drivers that still get called from net/Space.c have prototypes in net/Space, but this header is not included in most of the files that define those functions: drivers/net/ethernet/cirrus/cs89x0.c:1649:28: error: no previous prototype for 'cs89x0_probe' [-Werror=missing-prototypes] drivers/net/ethernet/8390/ne.c:947:28: error: no previous prototype for 'ne_probe' [-Werror=missing-prototypes] drivers/net/ethernet/8390/smc-ultra.c:167:28: error: no previous prototype for 'ultra_probe' [-Werror=missing-prototypes] drivers/net/ethernet/amd/lance.c:438:28: error: no previous prototype for 'lance_probe' [-Werror=missing-prototypes] drivers/net/ethernet/3com/3c515.c:422:20: error: no previous prototype for 'tc515_probe' [-Werror=missing-prototypes] Add the inclusion to avoids the warnings. Signed-off-by:
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Christophe JAILLET authored
Use struct_size() instead of hand writing it. This is less verbose and more informative. Signed-off-by:
Eelco Chaudron <echaudro@redhat.com> Link: https://lore.kernel.org/r/e7746fbbd62371d286081d5266e88bbe8d3fe9f0.1683388991.git.christophe.jaillet@wanadoo.frSigned-off-by:
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Gustavo A. R. Silva authored
Zero-length arrays are deprecated and we are moving towards adopting C99 flexible-array members, instead. So, replace zero-length arrays declarations alone in structs with the new DECLARE_FLEX_ARRAY() helper macro. This helper allows for flexible-array members alone in structs. Link: https://github.com/KSPP/linux/issues/193 Link: https://github.com/KSPP/linux/issues/285 Link: https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.htmlSigned-off-by:
Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by:
Ido Schimmel <idosch@nvidia.com> Tested-by:
Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/ZGKGiBxP0zHo6XSK@workSigned-off-by:
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Gustavo A. R. Silva authored
Zero-length arrays as fake flexible arrays are deprecated, and we are moving towards adopting C99 flexible-array members instead. Transform zero-length array into flexible-array member in struct wx_q_vector. Link: https://github.com/KSPP/linux/issues/21 Link: https://github.com/KSPP/linux/issues/286 Link: https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.htmlSigned-off-by:
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- 17 May, 2023 5 commits
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Marc Kleine-Budde authored
This reverts commit 0920ccdf. The commit 0920ccdf ("ARM: dts: stm32: add CAN support on stm32f746") depends on the patch "dt-bindings: mfd: stm32f7: add binding definition for CAN3" [1], which is not in net/main, yet. This results in a parsing error of "stm32f746.dtsi". So revert this commit. [1] https://lore.kernel.org/all/20230423172528.1398158-2-dario.binacchi@amarulasolutions.com Cc: Dario Binacchi <dario.binacchi@amarulasolutions.com> Cc: Alexandre TORGUE <alexandre.torgue@foss.st.com> Reported-by:
kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202305172108.x5acbaQG-lkp@intel.com Closes: https://lore.kernel.org/oe-kbuild-all/202305172130.eGGEUhpi-lkp@intel.com Fixes: 0920ccdf ("ARM: dts: stm32: add CAN support on stm32f746") Suggested-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/20230517181950.1106697-1-mkl@pengutronix.deSigned-off-by:
Marc Kleine-Budde <mkl@pengutronix.de>
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Linus Torvalds authored
Merge tag 'linux-kselftest-fixes-6.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull Kselftest fixes from Shuah Khan: - sgx test fix for false negatives - ftrace output is hard to parses and it masks inappropriate skips etc. This fix addresses the problems by integrating with kselftest runner * tag 'linux-kselftest-fixes-6.4-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests/ftrace: Improve integration with kselftest runner selftests/sgx: Add "test_encl.elf" to TEST_FILES
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git://git.kernel.org/pub/scm/linux/kernel/git/cel/linuxLinus Torvalds authored
Pull nfsd fixes from Chuck Lever: - A collection of minor bug fixes * tag 'nfsd-6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: NFSD: Remove open coding of string copy SUNRPC: Fix trace_svc_register() call site SUNRPC: always free ctxt when freeing deferred request SUNRPC: double free xprt_ctxt while still in use SUNRPC: Fix error handling in svc_setup_socket() SUNRPC: Fix encoding of accepted but unsuccessful RPC replies lockd: define nlm_port_min,max with CONFIG_SYSCTL nfsd: define exports_proc_ops with CONFIG_PROC_FS SUNRPC: Avoid relying on crypto API to derive CBC-CTS output IV
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git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmddLinus Torvalds authored
Pull tpm fixes from Jarkko Sakkinen: "Three bug fixes for recently discovered issues" * tag 'tpmdd-v6.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd: tpm/tpm_tis: Disable interrupts for more Lenovo devices tpm: Prevent hwrng from activating during resume tpm_tis: Use tpm_chip_{start,stop} decoration inside tpm_tis_resume
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Arnd Bergmann authored
This function is only used when CONFIG_TRACE_BRANCH_PROFILING is set and DISABLE_BRANCH_PROFILING is not set, and the declaration is hidden behind this combination of tests. But that causes a warning when building with CONFIG_TRACING_BRANCHES, since that sets DISABLE_BRANCH_PROFILING for the tracing code, and the declaration is thus hidden: kernel/trace/trace_branch.c:205:6: error: no previous prototype for 'ftrace_likely_update' [-Werror=missing-prototypes] Move the declaration out of the #ifdef to avoid the warning. Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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