- 19 Oct, 2023 40 commits
-
-
Rob Herring authored
The mscc,vsc7514-switch schema doesn't add any custom port properties, so it can just reference ethernet-switch.yaml#/$defs/base and dsa.yaml#/$defs/ethernet-ports instead of the base file and can skip defining port nodes. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Arınç ÜNAL <arinc.unal@arinc9.com> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20231016-dt-net-cleanups-v1-7-a525a090b444@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>
-
Rob Herring authored
The indentation for the example is completely messed up for 'ethernet-ports'. Fix it. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Arınç ÜNAL <arinc.unal@arinc9.com> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20231016-dt-net-cleanups-v1-6-a525a090b444@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>
-
Rob Herring authored
The name "base" is misleading as the definition is for a complete schema definition without additional properties allowed, not a "base class". Align the same to be the same as dsa.yaml. This schema file without any json pointer path is the base schema which can be extended. There are not yet any references to $defs/base to update. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Arınç ÜNAL <arinc.unal@arinc9.com> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20231016-dt-net-cleanups-v1-5-a525a090b444@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>
-
Rob Herring authored
The '$defs/ethernet-ports' schema is referenced by schemas defining a child node 'ethernet-ports', but this schema misses the 'ethernet-ports' node. It would work if referring schemas made a reference like this: properties: ethernet-ports: $ref: ethernet-switch.yaml#/$defs/ethernet-ports However, that would be different from how dsa.yaml works. For consistency, align the schema definition with dsa.yaml and add the missing level. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Arınç ÜNAL <arinc.unal@arinc9.com> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20231016-dt-net-cleanups-v1-4-a525a090b444@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>
-
Rob Herring authored
'ethernet-port' node unit-addresses should be in hexadecimal. Some instances have it correct, but fix the ones that don't. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Arınç ÜNAL <arinc.unal@arinc9.com> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20231016-dt-net-cleanups-v1-3-a525a090b444@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>
-
Rob Herring authored
What's connected on the MDIO bus is outside the scope of the binding for ethernet controller's MDIO bus unless it's a fixed internal device, so drop the node name and reference to ethernet-phy.yaml. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20231016-dt-net-cleanups-v1-2-a525a090b444@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>
-
Rob Herring authored
Just as unevaluatedProperties or additionalProperties are required at the top level of schemas, they should (and will) also be required for child node schemas. That ensures only documented properties are present for any node. Add unevaluatedProperties or additionalProperties as appropriate. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Arınç ÜNAL <arinc.unal@arinc9.com> Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com> Reviewed-by: Gerhard Engleder <gerhard@engleder-embedded.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20231016-dt-net-cleanups-v1-1-a525a090b444@kernel.orgSigned-off-by: Jakub Kicinski <kuba@kernel.org>
-
Paolo Abeni authored
Christian Marangi says: ==================== net: stmmac: improve tx timer logic This series comes with the intention of restoring original performance of stmmac on some router/device that used the stmmac driver to handle gigabit traffic. More info are present in patch 3. This cover letter is to show results and improvements of the following change. The move to hr_timer for tx timer and commit 8fce3331 ("net: stmmac: Rework coalesce timer and fix multi-queue races") caused big performance regression on these kind of device. This was observed on ipq806x that after kernel 4.19 couldn't handle gigabit speed anymore. The following series is currently applied and tested in OpenWrt SNAPSHOT and have great performance increase. (the scenario is qca8k switch + stmmac dwmac1000) Some good comparison can be found here [1]. The difference is from a swconfig scenario (where dsa tagging is not used so very low CPU impact in handling traffic) and DSA scenario where tagging is used and there is a minimal impact in the CPU. As can be notice even with DSA in place we have better perf. It was observed by other user that also SQM scenario with cake scheduler were improved in the order of 100mbps (this scenario is CPU limited and any increase of perf is caused by removing load on the CPU) Been at least 15 days that this is in use without any complain or bug reported about queue timeout. (was the case with v1 before the additional patch was added, only appear on real world tests and not on iperf tests) [1] https://forum.openwrt.org/t/netgear-r7800-exploration-ipq8065-qca9984/285/3427?u=ansuel ==================== Link: https://lore.kernel.org/r/20231018123550.27110-1-ansuelsmth@gmail.comSigned-off-by: Paolo Abeni <pabeni@redhat.com>
-
Christian Marangi authored
Commit 8fce3331 ("net: stmmac: Rework coalesce timer and fix multi-queue races") decreased the TX coalesce timer from 40ms to 1ms. This caused some performance regression on some target (regression was reported at least on ipq806x) in the order of 600mbps dropping from gigabit handling to only 200mbps. The problem was identified in the TX timer getting armed too much time. While this was fixed and improved in another commit, performance can be improved even further by increasing the timer delay a bit moving from 1ms to 5ms. The value is a good balance between battery saving by prevending too much interrupt to be generated and permitting good performance for internet oriented devices. Signed-off-by: Christian Marangi <ansuelsmth@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
-
Christian Marangi authored
Move TX timer arm call after DMA interrupt is enabled again. The TX timer arm function changed logic and now is skipped if a napi is already scheduled. By moving the TX timer arm call after DMA is enabled, we permit to correctly skip if a DMA interrupt has been fired and a napi has been scheduled again. Signed-off-by: Christian Marangi <ansuelsmth@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
-
Christian Marangi authored
There is currently a problem with the TX timer getting armed multiple unnecessary times causing big performance regression on some device that suffer from heavy handling of hrtimer rearm. The use of the TX timer is an old implementation that predates the napi implementation and the interrupt enable/disable handling. Due to stmmac being a very old code, the TX timer was never evaluated again with this new implementation and was kept there causing performance regression. The performance regression started to appear with kernel version 4.19 with 8fce3331 ("net: stmmac: Rework coalesce timer and fix multi-queue races") where the timer was reduced to 1ms causing it to be armed 40 times more than before. Decreasing the timer made the problem more present and caused the regression in the other of 600-700mbps on some device (regression where this was notice is ipq806x). The problem is in the fact that handling the hrtimer on some target is expensive and recent kernel made the timer armed much more times. A solution that was proposed was reverting the hrtimer change and use mod_timer but such solution would still hide the real problem in the current implementation. To fix the regression, apply some additional logic and skip arming the timer when not needed. Arm the timer ONLY if a napi is not already scheduled. Running the timer is redundant since the same function (stmmac_tx_clean) will run in the napi TX poll. Also try to cancel any timer if a napi is scheduled to prevent redundant run of TX call. With the following new logic the original performance are restored while keeping using the hrtimer. Signed-off-by: Christian Marangi <ansuelsmth@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
-
Christian Marangi authored
We currently have napi_if_scheduled_mark_missed that can be used to check if napi is scheduled but that does more thing than simply checking it and return a bool. Some driver already implement custom function to check if napi is scheduled. Drop these custom function and introduce napi_is_scheduled that simply check if napi is scheduled atomically. Update any driver and code that implement a similar check and instead use this new helper. Signed-off-by: Christian Marangi <ansuelsmth@gmail.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
-
Michal Schmidt authored
'san_addr' and 'mac_fcoeq' members of struct iavf_mac_info are unused. 'type' is write-only. Delete all three. The function iavf_set_mac_type that sets 'type' also checks if the PCI vendor ID is Intel. This is unnecessary. Delete the whole function. If in the future there's a need for the MAC type (or other PCI ID-dependent data), I would prefer to use .driver_data in iavf_pci_tbl[] for this purpose. Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Reviewed-by: Wojciech Drewek <wojciech.drewek@intel.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://lore.kernel.org/r/20231018111527.78194-1-mschmidt@redhat.comSigned-off-by: Paolo Abeni <pabeni@redhat.com>
-
Eric Dumazet authored
Christoph Paasch reported a panic in TCP stack [1] Indeed, we should not call sk_dst_reset() without holding the socket lock, as __sk_dst_get() callers do not all rely on bare RCU. [1] BUG: kernel NULL pointer dereference, address: 0000000000000000 PGD 12bad6067 P4D 12bad6067 PUD 12bad5067 PMD 0 Oops: 0000 [#1] PREEMPT SMP CPU: 1 PID: 2750 Comm: syz-executor.5 Not tainted 6.6.0-rc4-g7a5720a344e7 #49 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2.el7 04/01/2014 RIP: 0010:tcp_get_metrics+0x118/0x8f0 net/ipv4/tcp_metrics.c:321 Code: c7 44 24 70 02 00 8b 03 89 44 24 48 c7 44 24 4c 00 00 00 00 66 c7 44 24 58 02 00 66 ba 02 00 b1 01 89 4c 24 04 4c 89 7c 24 10 <49> 8b 0f 48 8b 89 50 05 00 00 48 89 4c 24 30 33 81 00 02 00 00 69 RSP: 0018:ffffc90000af79b8 EFLAGS: 00010293 RAX: 000000000100007f RBX: ffff88812ae8f500 RCX: ffff88812b5f8f01 RDX: 0000000000000002 RSI: ffffffff8300f080 RDI: 0000000000000002 RBP: 0000000000000002 R08: 0000000000000003 R09: ffffffff8205eca0 R10: 0000000000000002 R11: ffff88812b5f8f00 R12: ffff88812a9e0580 R13: 0000000000000000 R14: ffff88812ae8fbd2 R15: 0000000000000000 FS: 00007f70a006b640(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000012bad7003 CR4: 0000000000170ee0 Call Trace: <TASK> tcp_fastopen_cache_get+0x32/0x140 net/ipv4/tcp_metrics.c:567 tcp_fastopen_cookie_check+0x28/0x180 net/ipv4/tcp_fastopen.c:419 tcp_connect+0x9c8/0x12a0 net/ipv4/tcp_output.c:3839 tcp_v4_connect+0x645/0x6e0 net/ipv4/tcp_ipv4.c:323 __inet_stream_connect+0x120/0x590 net/ipv4/af_inet.c:676 tcp_sendmsg_fastopen+0x2d6/0x3a0 net/ipv4/tcp.c:1021 tcp_sendmsg_locked+0x1957/0x1b00 net/ipv4/tcp.c:1073 tcp_sendmsg+0x30/0x50 net/ipv4/tcp.c:1336 __sock_sendmsg+0x83/0xd0 net/socket.c:730 __sys_sendto+0x20a/0x2a0 net/socket.c:2194 __do_sys_sendto net/socket.c:2206 [inline] Fixes: e08d0b3d ("inet: implement lockless IP_TOS") Reported-by: Christoph Paasch <cpaasch@apple.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Link: https://lore.kernel.org/r/20231018090014.345158-1-edumazet@google.comSigned-off-by: Paolo Abeni <pabeni@redhat.com>
-
Paolo Abeni authored
Johannes Zink says: ==================== net: stmmac: use correct PPS input indexing The stmmac can have 0 to 4 auxiliary snapshot in channels, which can be used for capturing external triggers with respect to the eqos PTP timer. Previously when enabling the auxiliary snapshot, an invalid request was written to the hardware register, except for the Intel variant of this driver, where the only snapshot available was hardcoded. Patch 1 of this series cleans up the debug netdev_dbg message indicating the auxiliary snapshot being {en,dis}abled. No functional changes here Patch 2 of this series writes the correct PPS input indexing to the hardware registers instead of a previously used fixed value Patch 3 of this series removes a field member from plat_stmmacnet_data that is no longer needed Patch 4 of this series prepares Patch 5 by protecting the snapshot enabled flag by the aux_ts_lock mutex Patch 5 of this series adds a temporary workaround, since at the moment the driver can handle only one single auxiliary snapshot at a time. Previously the driver silently dropped the previous configuration and enabled the new one. Now, if a snapshot is already enabled and userspace tries to enable another without previously disabling the snapshot currently enabled: issue a netdev_err and return an errorcode indicating the device is busy. This series is a "never worked, doesn't hurt anyone" touchup to the PPS capture for non-intel variants of the dwmac driver. ==================== Link: https://lore.kernel.org/r/20231010-stmmac_fix_auxiliary_event_capture-v2-0-51d5f56542d7@pengutronix.deSigned-off-by: Paolo Abeni <pabeni@redhat.com>
-
Johannes Zink authored
Even though the hardware theoretically supports up to 4 simultaneous auxiliary snapshot capture channels, the stmmac driver does support only a single channel to be active at a time. Previously in case of a PTP_CLK_REQ_EXTTS request, previously active auxiliary snapshot capture channels were silently dropped and the new channel was activated. Instead of silently changing the state for all consumers, log an error and return -EBUSY if a channel is already in use in order to signal to userspace to disable the currently active channel before enabling another one. Signed-off-by: Johannes Zink <j.zink@pengutronix.de> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
-
Johannes Zink authored
This is a preparation patch. The next patch will check if an external TS is active and return with an error. So we have to move the change of the plat->flags that tracks if external timestamping is enabled after that check. Prepare for this change and move the plat->flags change into the mutex and the if (on). Signed-off-by: Johannes Zink <j.zink@pengutronix.de> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
-
Johannes Zink authored
Do not store bitmask for enabling AUX_SNAPSHOT0. The previous commit ("net: stmmac: fix PPS capture input index") takes care of calculating the proper bit mask from the request data's extts.index field, which is 0 if not explicitly specified otherwise. Signed-off-by: Johannes Zink <j.zink@pengutronix.de> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
-
Johannes Zink authored
The stmmac supports up to 4 auxiliary snapshots that can be enabled by setting the appropriate bits in the PTP_ACR bitfield. Previously as of commit f4da5652 ("net: stmmac: Add support for external trigger timestamping") instead of setting the bits, a fixed value was written to this bitfield instead of passing the appropriate bitmask. Now the correct bit is set according to the ptp_clock_request.extts_index passed as a parameter to stmmac_enable(). Signed-off-by: Johannes Zink <j.zink@pengutronix.de> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
-
Johannes Zink authored
Simplify the netdev_dbg() call in stmmac_enable() in order to reduce code duplication. No functional change. Signed-off-by: Johannes Zink <j.zink@pengutronix.de> Reviewed-by: Andrew Halaney <ahalaney@redhat.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
-
Gan Yi Fang authored
The datatype of rx_coalesce_usecs is u32, always larger or equal to zero. Previous checking does not include value 0, this patch removes the checking to handle the value 0. This change in behaviour making the value of 0 cause an error is not a problem because 0 is out of range of rx_coalesce_usecs. Signed-off-by: Gan Yi Fang <yi.fang.gan@intel.com> Link: https://lore.kernel.org/r/20231018030802.741923-1-yi.fang.gan@intel.comSigned-off-by: Paolo Abeni <pabeni@redhat.com>
-
Jakub Kicinski authored
There seems to be no docs for the concept of multiple RSS contexts and how to configure it. I had to explain it three times recently, the last one being the charm, document it. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Edward Cree <ecree.xilinx@gmail.com> Link: https://lore.kernel.org/r/20231018010758.2382742-1-kuba@kernel.orgSigned-off-by: Paolo Abeni <pabeni@redhat.com>
-
Paolo Abeni authored
Yoshihiro Shimoda says: ==================== rswitch: Add PM ops This patch is based on the latest net-next.git / next branch. After applied this patch with the following patches, the system can enter/exit Suspend to Idle without any error: https://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy.git/commit/?h=next&id=aa4c0bbf820ddb9dd8105a403aa12df57b9e5129 https://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy.git/commit/?h=next&id=1a5361189b7acac15b9b086b2300a11b7aa84c06 ==================== Link: https://lore.kernel.org/r/20231017113402.849735-1-yoshihiro.shimoda.uh@renesas.comSigned-off-by: Paolo Abeni <pabeni@redhat.com>
-
Yoshihiro Shimoda authored
Add PM ops for Suspend to Idle. When the system suspended, the Ethernet Serdes's clock will be stopped. So, this driver needs to re-initialize the Ethernet Serdes by phy_init() in renesas_eth_sw_resume(). Otherwise, timeout happened in phy_power_on(). Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
-
Yoshihiro Shimoda authored
Array index should not be negative, so modify the condition of rswitch_for_each_enabled_port_continue_reverse() macro, and then use unsigned int instead. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
-
Jakub Kicinski authored
Jacob Keller says: ==================== Intel Wired LAN Driver Updates 2023-10-17 This series contains cleanups for all the Intel drivers relating to their use of format specifiers and the use of strncpy. Jesse fixes various -Wformat warnings across all the Intel networking, including various cases where a "%s" string format specifier is preferred, and using kasprintf instead of snprintf. Justin replaces all of the uses of the now deprecated strncpy with a more modern string function, primarily strscpy. ==================== Link: https://lore.kernel.org/r/20231017190411.2199743-1-jacob.e.keller@intel.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
-
Justin Stitt authored
`strncpy` is deprecated for use on NUL-terminated destination strings [1] and as such we should prefer more robust and less ambiguous string interfaces. We expect netdev->name to be NUL-terminated based on its use with format strings: | if (q_vector->rx.ring && q_vector->tx.ring) | sprintf(q_vector->name, "%s-TxRx-%u", netdev->name, Furthermore, we do not need NUL-padding as netdev is already zero-allocated: | netdev = alloc_etherdev_mq(sizeof(struct igc_adapter), | IGC_MAX_TX_QUEUES); ... alloc_etherdev() -> alloc_etherdev_mq() -> alloc_etherdev_mqs() -> alloc_netdev_mqs() ... | p = kvzalloc(alloc_size, GFP_KERNEL_ACCOUNT | __GFP_RETRY_MAYFAIL); Considering the above, a suitable replacement is `strscpy` [2] due to the fact that it guarantees NUL-termination on the destination buffer without unnecessarily NUL-padding. Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1] Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2] Link: https://github.com/KSPP/linux/issues/90Signed-off-by: Justin Stitt <justinstitt@google.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel) Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://lore.kernel.org/r/20231017190411.2199743-10-jacob.e.keller@intel.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
-
Justin Stitt authored
`strncpy` is deprecated for use on NUL-terminated destination strings [1] and as such we should prefer more robust and less ambiguous string interfaces. We expect netdev->name to be NUL-terminated based on its usage with `strlen` and format strings: | if (strlen(netdev->name) < (IFNAMSIZ - 5)) { | sprintf(adapter->tx_ring->name, "%s-tx-0", netdev->name); Moreover, we do not need NUL-padding as netdev is already zero-allocated: | netdev = alloc_etherdev(sizeof(struct igbvf_adapter)); ... alloc_etherdev() -> alloc_etherdev_mq() -> alloc_etherdev_mqs() -> alloc_netdev_mqs() ... | p = kvzalloc(alloc_size, GFP_KERNEL_ACCOUNT | __GFP_RETRY_MAYFAIL); Considering the above, a suitable replacement is `strscpy` [2] due to the fact that it guarantees NUL-termination on the destination buffer without unnecessarily NUL-padding. Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1] Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2] Link: https://github.com/KSPP/linux/issues/90Signed-off-by: Justin Stitt <justinstitt@google.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel) Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://lore.kernel.org/r/20231017190411.2199743-9-jacob.e.keller@intel.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
-
Justin Stitt authored
`strncpy` is deprecated for use on NUL-terminated destination strings [1] and as such we should prefer more robust and less ambiguous string interfaces. We see that netdev->name is expected to be NUL-terminated based on its usage with format strings: | sprintf(q_vector->name, "%s-TxRx-%u", netdev->name, | q_vector->rx.ring->queue_index); Furthermore, NUL-padding is not required as netdev is already zero-allocated: | netdev = alloc_etherdev_mq(sizeof(struct igb_adapter), | IGB_MAX_TX_QUEUES); ... alloc_etherdev_mq() -> alloc_etherdev_mqs() -> alloc_netdev_mqs() ... | p = kvzalloc(alloc_size, GFP_KERNEL_ACCOUNT | __GFP_RETRY_MAYFAIL); Considering the above, a suitable replacement is `strscpy` [2] due to the fact that it guarantees NUL-termination on the destination buffer without unnecessarily NUL-padding. Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1] Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2] Link: https://github.com/KSPP/linux/issues/90Signed-off-by: Justin Stitt <justinstitt@google.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel) Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://lore.kernel.org/r/20231017190411.2199743-8-jacob.e.keller@intel.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
-
Justin Stitt authored
`strncpy` is deprecated for use on NUL-terminated destination strings [1] and as such we should prefer more robust and less ambiguous string interfaces. Moreover, `strncat` shouldn't really be used either as per fortify-string.h: * Do not use this function. While FORTIFY_SOURCE tries to avoid * read and write overflows, this is only possible when the sizes * of @p and @q are known to the compiler. Prefer building the * string with formatting, via scnprintf() or similar. Instead, use `scnprintf` with "%s%s" format string. This code is now more readable and robust. Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1] Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2] Link: https://github.com/KSPP/linux/issues/90Signed-off-by: Justin Stitt <justinstitt@google.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel) Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://lore.kernel.org/r/20231017190411.2199743-7-jacob.e.keller@intel.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
-
Justin Stitt authored
`strncpy` is deprecated for use on NUL-terminated destination strings [1] and as such we should prefer more robust and less ambiguous string interfaces. A suitable replacement is `strscpy` [2] due to the fact that it guarantees NUL-termination on the destination buffer without unnecessarily NUL-padding. Other implementations of .*get_drvinfo also use strscpy so this patch brings fm10k_get_drvinfo in line as well: igb/igb_ethtool.c +851 static void igb_get_drvinfo(struct net_device *netdev, igbvf/ethtool.c 167:static void igbvf_get_drvinfo(struct net_device *netdev, i40e/i40e_ethtool.c 1999:static void i40e_get_drvinfo(struct net_device *netdev, e1000/e1000_ethtool.c 529:static void e1000_get_drvinfo(struct net_device *netdev, ixgbevf/ethtool.c 211:static void ixgbevf_get_drvinfo(struct net_device *netdev, Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1] Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2] Link: https://github.com/KSPP/linux/issues/90Signed-off-by: Justin Stitt <justinstitt@google.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://lore.kernel.org/r/20231017190411.2199743-6-jacob.e.keller@intel.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
-
Justin Stitt authored
`strncpy` is deprecated for use on NUL-terminated destination strings [1] and as such we should prefer more robust and less ambiguous string interfaces. We can see that netdev->name is expected to be NUL-terminated based on it's usage with format strings: | pr_info("%s NIC Link is Down\n", | netdev->name); A suitable replacement is `strscpy` [2] due to the fact that it guarantees NUL-termination on the destination buffer without unnecessarily NUL-padding. This is in line with other uses of strscpy on netdev->name: $ rg "strscpy\(netdev\->name.*pci.*" drivers/net/ethernet/intel/e1000e/netdev.c 7455: strscpy(netdev->name, pci_name(pdev), sizeof(netdev->name)); drivers/net/ethernet/intel/ixgbe/ixgbe_main.c 10839: strscpy(netdev->name, pci_name(pdev), sizeof(netdev->name)); Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1] Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2] Link: https://github.com/KSPP/linux/issues/90Signed-off-by: Justin Stitt <justinstitt@google.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://lore.kernel.org/r/20231017190411.2199743-5-jacob.e.keller@intel.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
-
Justin Stitt authored
`strncpy` is deprecated for use on NUL-terminated destination strings [1] and as such we should prefer more robust and less ambiguous string interfaces. The "...-1" pattern makes it evident that netdev->name is expected to be NUL-terminated. Meanwhile, it seems NUL-padding is not required due to alloc_etherdev zero-allocating the buffer. Considering the above, a suitable replacement is `strscpy` [2] due to the fact that it guarantees NUL-termination on the destination buffer without unnecessarily NUL-padding. This is in line with other uses of strscpy on netdev->name: $ rg "strscpy\(netdev\->name.*pci.*" drivers/net/ethernet/intel/e1000e/netdev.c 7455: strscpy(netdev->name, pci_name(pdev), sizeof(netdev->name)); drivers/net/ethernet/intel/ixgbe/ixgbe_main.c 10839: strscpy(netdev->name, pci_name(pdev), sizeof(netdev->name)); Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1] Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2] Link: https://github.com/KSPP/linux/issues/90Signed-off-by: Justin Stitt <justinstitt@google.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://lore.kernel.org/r/20231017190411.2199743-4-jacob.e.keller@intel.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
-
Jesse Brandeburg authored
Get ahead of the game and fix all the -Wformat=2 noted warnings in the intel drivers directory. There are one set of i40e and iavf warnings I couldn't figure out how to fix because the driver is already using vsnprintf without an explicit "const char *" format string. Tested with both gcc-12 and clang-15. I found gcc-12 runs clean after this series but clang-15 is a little worried about the vsnprintf lines. summary of warnings: drivers/net/ethernet/intel/fm10k/fm10k_ethtool.c:148:34: warning: format string is not a string literal [-Wformat-nonliteral] drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c:1416:24: warning: format string is not a string literal (potentially insecure) [-Wformat-security] drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c:1416:24: note: treat the string as an argument to avoid this drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c:1421:6: warning: format string is not a string literal (potentially insecure) [-Wformat-security] drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c:1421:6: note: treat the string as an argument to avoid this drivers/net/ethernet/intel/igc/igc_ethtool.c:776:24: warning: format string is not a string literal (potentially insecure) [-Wformat-security] drivers/net/ethernet/intel/igc/igc_ethtool.c:776:24: note: treat the string as an argument to avoid this drivers/net/ethernet/intel/igc/igc_ethtool.c:779:6: warning: format string is not a string literal (potentially insecure) [-Wformat-security] drivers/net/ethernet/intel/igc/igc_ethtool.c:779:6: note: treat the string as an argument to avoid this drivers/net/ethernet/intel/iavf/iavf_ethtool.c:199:34: warning: format string is not a string literal [-Wformat-nonliteral] drivers/net/ethernet/intel/igb/igb_ethtool.c:2360:6: warning: format string is not a string literal (potentially insecure) [-Wformat-security] drivers/net/ethernet/intel/igb/igb_ethtool.c:2360:6: note: treat the string as an argument to avoid this drivers/net/ethernet/intel/igb/igb_ethtool.c:2363:6: warning: format string is not a string literal (potentially insecure) [-Wformat-security] drivers/net/ethernet/intel/igb/igb_ethtool.c:2363:6: note: treat the string as an argument to avoid this drivers/net/ethernet/intel/i40e/i40e_ethtool.c:208:34: warning: format string is not a string literal [-Wformat-nonliteral] drivers/net/ethernet/intel/i40e/i40e_ethtool.c:2515:23: warning: format string is not a string literal (potentially insecure) [-Wformat-security] drivers/net/ethernet/intel/i40e/i40e_ethtool.c:2515:23: note: treat the string as an argument to avoid this drivers/net/ethernet/intel/i40e/i40e_ethtool.c:2519:23: warning: format string is not a string literal (potentially insecure) [-Wformat-security] drivers/net/ethernet/intel/i40e/i40e_ethtool.c:2519:23: note: treat the string as an argument to avoid this drivers/net/ethernet/intel/ice/ice_ethtool.c:1064:6: warning: format string is not a string literal (potentially insecure) [-Wformat-security] drivers/net/ethernet/intel/ice/ice_ethtool.c:1064:6: note: treat the string as an argument to avoid this drivers/net/ethernet/intel/ice/ice_ethtool.c:1084:6: warning: format string is not a string literal (potentially insecure) [-Wformat-security] drivers/net/ethernet/intel/ice/ice_ethtool.c:1084:6: note: treat the string as an argument to avoid this drivers/net/ethernet/intel/ice/ice_ethtool.c:1100:24: warning: format string is not a string literal (potentially insecure) [-Wformat-security] drivers/net/ethernet/intel/ice/ice_ethtool.c:1100:24: note: treat the string as an argument to avoid this Suggested-by: Alexander Lobakin <aleksander.lobakin@intel.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel) Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://lore.kernel.org/r/20231017190411.2199743-3-jacob.e.keller@intel.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
-
Jesse Brandeburg authored
Fix -Wformat-truncated warnings to complete the intel directories' W=1 clean efforts. The W=1 recently got enhanced with a few new flags and this brought up some new warnings. Switch to using kasprintf() when possible so we always allocate the right length strings. summary of warnings: drivers/net/ethernet/intel/iavf/iavf_virtchnl.c:1425:60: warning: ‘%s’ directive output may be truncated writing 4 bytes into a region of size between 1 and 11 [-Wformat-truncation=] drivers/net/ethernet/intel/iavf/iavf_virtchnl.c:1425:17: note: ‘snprintf’ output between 7 and 17 bytes into a destination of size 13 drivers/net/ethernet/intel/ice/ice_ptp.c:43:27: warning: ‘%s’ directive output may be truncated writing up to 479 bytes into a region of size 64 [-Wformat-truncation=] drivers/net/ethernet/intel/ice/ice_ptp.c:42:17: note: ‘snprintf’ output between 1 and 480 bytes into a destination of size 64 drivers/net/ethernet/intel/igb/igb_main.c:3092:53: warning: ‘%d’ directive output may be truncated writing between 1 and 5 bytes into a region of size between 1 and 13 [-Wformat-truncation=] drivers/net/ethernet/intel/igb/igb_main.c:3092:34: note: directive argument in the range [0, 65535] drivers/net/ethernet/intel/igb/igb_main.c:3092:34: note: directive argument in the range [0, 65535] drivers/net/ethernet/intel/igb/igb_main.c:3090:25: note: ‘snprintf’ output between 23 and 43 bytes into a destination of size 32 Suggested-by: Alexander Lobakin <aleksander.lobakin@intel.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel) Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://lore.kernel.org/r/20231017190411.2199743-2-jacob.e.keller@intel.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
-
Jakub Kicinski authored
Pedro Tammela says: ==================== selftests: tc-testing: fixes for kselftest While playing around with TuxSuite, we noticed a couple of things were broken for strict CI/automated builds. We had a script that didn't make into the kselftest tarball and a couple of missing Kconfig knobs in our minimal config. ==================== Link: https://lore.kernel.org/r/20231017152309.3196320-1-pctammela@mojatatu.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
-
Pedro Tammela authored
Some taprio tests need auxiliary scripts to wait for workqueue events to process. Move them to a dedicated folder in order to package them for the kselftests tarball. Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Pedro Tammela <pctammela@mojatatu.com> Link: https://lore.kernel.org/r/20231017152309.3196320-3-pctammela@mojatatu.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
-
Pedro Tammela authored
Make sure CI builds using just tc-testing/config can run all tdc tests. Some tests were broken because of missing knobs. Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Pedro Tammela <pctammela@mojatatu.com> Link: https://lore.kernel.org/r/20231017152309.3196320-2-pctammela@mojatatu.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
-
Jiawen Wu authored
Since PBA info can be read from lspci, delete txgbe_read_pba_string() and the prints. In addition, delete the redundant MAC address printing. Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20231017100635.154967-1-jiawenwu@trustnetic.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
-
Jakub Kicinski authored
Alexander Stein says: ==================== net: fec: Fix device_get_match_data usage this is v2 adressing the regression introduced by commit b0377116 ("net: ethernet: Use device_get_match_data()"). You could also remove the (!dev_info) case for Coldfire as this platform has no quirks. But IMHO this should be kept as long as Coldfire platform data is supported. ==================== Link: https://lore.kernel.org/r/20231017063419.925266-1-alexander.stein@ew.tq-group.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>
-