kernel/linux.git/drivers/net/ethernet/altera, branch v6.18.21

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

2024-10-04T23:39:56+00:00

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()

2024-05-07T23:19:14+00:00

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

net: ethernet: Use device_get_match_data()

2023-10-13T09:04:53+00:00

Use preferred device_get_match_data() instead of of_match_device() to get the driver match data. With this, adjust the includes to explicitly include the correct headers. Signed-off-by: Rob Herring Signed-off-by: David S. Miller

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

2023-09-20T08:06:37+00:00

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: altera-tse: make ALTERA_TSE depend on HAS_IOMEM

2023-08-18T17:18:51+00:00

On s390 systems (aka mainframes), it has classic channel devices for networking and permanent storage that are currently even more common than PCI devices. Hence it could have a fully functional s390 kernel with CONFIG_PCI=n, then the relevant iomem mapping functions [including ioremap(), devm_ioremap(), etc.] are not available. Here let ALTERA_TSE depend on HAS_IOMEM so that it won't be built to cause below compiling error if PCI is unset: ------ ERROR: modpost: "devm_ioremap" [drivers/net/ethernet/altera/altera_tse.ko] undefined! ------ Link: https://lkml.kernel.org/r/20230707135852.24292-6-bhe@redhat.com Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202306211329.ticOJCSv-lkp@intel.com/ Signed-off-by: Baoquan He Cc: Joyce Ooi Cc: "David S. Miller" Cc: Eric Dumazet Cc: Jakub Kicinski Cc: Paolo Abeni Signed-off-by: Andrew Morton

net: altera_tse: explicitly disable autoscan on the regmap-mdio bus

2023-06-07T20:30:12+00:00

Set the .autoscan flag to false on the regmap-mdio bus, to avoid using a random uninitialized value. We don't want autoscan in this case as the mdio device is a PCS and not a PHY. Fixes: db48abbaa18e ("net: ethernet: altera-tse: Convert to mdio-regmap and use PCS Lynx") Suggested-by: Russell King (Oracle) Signed-off-by: Maxime Chevallier Reviewed-by: Russell King (Oracle) Signed-off-by: Jakub Kicinski

net: altera_tse: Use the correct Kconfig option for the PCS_LYNX dependency

2023-06-07T20:30:12+00:00

Use the correct Kconfig dependency for altera_tse as PCS_ALTERA_TSE was replaced by PCS_LYNX. Fixes: db48abbaa18e ("net: ethernet: altera-tse: Convert to mdio-regmap and use PCS Lynx") Signed-off-by: Maxime Chevallier Reviewed-by: Russell King (Oracle) Signed-off-by: Jakub Kicinski

net: altera-tse: Initialize local structs before using it

2023-06-07T20:30:11+00:00

The regmap_config and mdio_regmap_config objects needs to be zeroed before using them. This will cause spurious errors at probe time as config->pad_bits is containing random uninitialized data. Fixes: db48abbaa18e ("net: ethernet: altera-tse: Convert to mdio-regmap and use PCS Lynx") Signed-off-by: Maxime Chevallier Reviewed-by: Russell King (Oracle) Signed-off-by: Jakub Kicinski

net: ethernet: altera-tse: Convert to mdio-regmap and use PCS Lynx

2023-06-05T08:56:36+00:00

The newly introduced regmap-based MDIO driver allows for an easy mapping of an mdiodevice onto the memory-mapped TSE PCS, which is actually a Lynx PCS. Convert Altera TSE to use this PCS instead of the pcs-altera-tse, which is nothing more than a memory-mapped Lynx PCS. Signed-off-by: Maxime Chevallier Reviewed-by: Simon Horman Signed-off-by: David S. Miller

net: altera: tse: remove mac_an_restart() function

2023-05-22T10:20:35+00:00

The mac_an_restart() method will only be called if the driver sets legacy_pre_march2020, which the altera tse driver does not do. Therefore, providing a stub is unnecessary. Fixes: fef2998203e1 ("net: altera: tse: convert to phylink") Signed-off-by: Russell King (Oracle) Reviewed-by: Simon Horman Signed-off-by: David S. Miller