kernel/drivers/net/ethernet/ni, branch linux-6.18.y

net: ethernet: Switch back to struct platform_driver::remove()

2024-10-04T23:39:56Z

After commit 0edb555a65d1 ("platform: Make platform_driver::remove() return void") .remove() is (again) the right callback to implement for platform drivers. Convert all platform drivers below drivers/net/ethernet to use .remove(), with the eventual goal to drop struct platform_driver::remove_new(). As .remove() and .remove_new() have the same prototypes, conversion is done by just changing the structure member name in the driver initializer. Signed-off-by: Uwe Kleine-König Link: https://patch.msgid.link/18f7c585a1a8a8ac8b03a2fca7de19bd5c52ac2b.1727949050.git.u.kleine-koenig@baylibre.com Signed-off-by: Jakub Kicinski

net: annotate writes on dev->mtu from ndo_change_mtu()

2024-05-07T23:19:14Z

Simon reported that ndo_change_mtu() methods were never updated to use WRITE_ONCE(dev->mtu, new_mtu) as hinted in commit 501a90c94510 ("inet: protect against too small mtu values.") We read dev->mtu without holding RTNL in many places, with READ_ONCE() annotations. It is time to take care of ndo_change_mtu() methods to use corresponding WRITE_ONCE() Signed-off-by: Eric Dumazet Reported-by: Simon Horman Closes: https://lore.kernel.org/netdev/20240505144608.GB67882@kernel.org/ Reviewed-by: Jacob Keller Reviewed-by: Sabrina Dubroca Reviewed-by: Simon Horman Acked-by: Shannon Nelson Link: https://lore.kernel.org/r/20240506102812.3025432-1-edumazet@google.com Signed-off-by: Jakub Kicinski

netdev: replace napi_reschedule with napi_schedule

2023-10-12T00:28:06Z

Now that napi_schedule return a bool, we can drop napi_reschedule that does the same exact function. The function comes from a very old commit bfe13f54f502 ("ibm_emac: Convert to use napi_struct independent of struct net_device") and the purpose is actually deprecated in favour of different logic. Convert every user of napi_reschedule to napi_schedule. Signed-off-by: Christian Marangi Acked-by: Jeff Johnson # ath10k Acked-by: Nick Child # ibm Acked-by: Marc Kleine-Budde # for can/dev/rx-offload.c Reviewed-by: Eric Dumazet Acked-by: Tariq Toukan Link: https://lore.kernel.org/r/20231009133754.9834-3-ansuelsmth@gmail.com Signed-off-by: Jakub Kicinski

netdev: replace simple napi_schedule_prep/__napi_schedule to napi_schedule

2023-10-12T00:28:05Z

Replace drivers that still use napi_schedule_prep/__napi_schedule with napi_schedule helper as it does the same exact check and call. Signed-off-by: Christian Marangi Reviewed-by: Eric Dumazet Link: https://lore.kernel.org/r/20231009133754.9834-1-ansuelsmth@gmail.com Signed-off-by: Jakub Kicinski

net: ethernet: ni: Convert to platform remove callback returning void

2023-09-20T08:06:40Z

The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Eventually after all drivers are converted, .remove_new() is renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Signed-off-by: David S. Miller

net: Explicitly include correct DT includes

2023-07-28T03:33:16Z

The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Acked-by: Alex Elder Reviewed-by: Bhupesh Sharma Reviewed-by: Wei Fang Signed-off-by: Rob Herring Reviewed-by: Simon Horman Link: https://lore.kernel.org/r/20230727014944.3972546-1-robh@kernel.org Signed-off-by: Jakub Kicinski

net: ni: drop of_match_ptr for ID table

2023-03-15T08:02:45Z

The driver can match only via the DT table so the table should be always used and the of_match_ptr does not have any sense (this also allows ACPI matching via PRP0001, even though it is not relevant here). drivers/net/ethernet/ni/nixge.c:1253:34: error: ‘nixge_dt_ids’ defined but not used [-Werror=unused-const-variable=] Signed-off-by: Krzysztof Kozlowski Reviewed-by: Simon Horman Signed-off-by: David S. Miller

net: nixge: Separate C22 and C45 transactions

2023-01-18T03:34:08Z

The nixge MDIO bus driver can perform both C22 and C45 transfers. Create separate functions for each and register the C45 versions using the new API calls where appropriate. Signed-off-by: Andrew Lunn Signed-off-by: Michael Walle Signed-off-by: Jakub Kicinski

net: ethernet: nixge: fix NULL dereference

2022-11-28T11:09:51Z

In function nixge_hw_dma_bd_release() dereference of NULL pointer priv->rx_bd_v is possible for the case of its allocation failure in nixge_hw_dma_bd_init(). Move for() loop with priv->rx_bd_v dereference under the check for its validity. Found by Linux Verification Center (linuxtesting.org) with SVACE. Fixes: 492caffa8a1a ("net: ethernet: nixge: Add support for National Instruments XGE netdev") Signed-off-by: Yuri Karpov Reviewed-by: Maciej Fijalkowski Signed-off-by: David S. Miller

net: nixge: disable napi when enable interrupts failed in nixge_open()

2022-11-09T01:44:02Z

When failed to enable interrupts in nixge_open() for opening device, napi isn't disabled. When open nixge device next time, it will reports a invalid opcode issue. Fix it. Only be compiled, not be tested. Fixes: 492caffa8a1a ("net: ethernet: nixge: Add support for National Instruments XGE netdev") Signed-off-by: Zhengchao Shao Link: https://lore.kernel.org/r/20221107101443.120205-1-shaozhengchao@huawei.com Signed-off-by: Jakub Kicinski