kernel.git/drivers/net/ethernet/xilinx, branch linux-5.11.y

net: axienet: allow setups without MDIO

2021-04-21T11:13:19Z

[ Upstream commit de9c7854e6e1589f639c6352112956d08243b659 ] In setups with fixed-link settings there is no mdio node in DTS. axienet_probe() already handles that gracefully but lp->mii_bus is then NULL. Fix code that tries to blindly grab the MDIO lock by introducing two helper functions that make the locking conditional. Signed-off-by: Daniel Mack Reviewed-by: Radhey Shyam Pandey Signed-off-by: David S. Miller Signed-off-by: Sasha Levin

net: axienet: Fix probe error cleanup

2021-03-30T12:30:27Z

[ Upstream commit 59cd4f19267a0aab87a8c07e4426eb7187ee548d ] The driver did not always clean up all allocated resources when probe failed. Fix the probe cleanup path to clean up everything that was allocated. Fixes: 57baf8cc70ea ("net: axienet: Handle deferred probe on clock properly") Signed-off-by: Robert Hancock Signed-off-by: David S. Miller Signed-off-by: Sasha Levin

net: axienet: Handle deferred probe on clock properly

2021-03-04T11:13:55Z

[ Upstream commit 57baf8cc70ea4cf5503c9d42f31f6a86d7f5ff1a ] This driver is set up to use a clock mapping in the device tree if it is present, but still work without one for backward compatibility. However, if getting the clock returns -EPROBE_DEFER, then we need to abort and return that error from our driver initialization so that the probe can be retried later after the clock is set up. Move clock initialization to earlier in the process so we do not waste as much effort if the clock is not yet available. Switch to use devm_clk_get_optional and abort initialization on any error reported. Also enable the clock regardless of whether the controller is using an MDIO bus, as the clock is required in any case. Fixes: 09a0354cadec267be7f ("net: axienet: Use clock framework to get device clock rate") Signed-off-by: Robert Hancock Signed-off-by: David S. Miller Signed-off-by: Sasha Levin

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2020-12-12T06:29:38Z

xdp_return_frame_bulk() needs to pass a xdp_buff to __xdp_return(). strlcpy got converted to strscpy but here it makes no functional difference, so just keep the right code. Conflicts: net/netfilter/nf_tables_api.c Signed-off-by: Jakub Kicinski

net: ll_temac: Fix potential NULL dereference in temac_probe()

2020-12-09T00:15:46Z

platform_get_resource() may fail and in this case a NULL dereference will occur. Fix it to use devm_platform_ioremap_resource() instead of calling platform_get_resource() and devm_ioremap(). This is detected by Coccinelle semantic patch. @@ expression pdev, res, n, t, e, e1, e2; @@ res = \(platform_get_resource\|platform_get_resource_byname\)(pdev, t, n); + if (!res) + return -EINVAL; ... when != res == NULL e = devm_ioremap(e1, res->start, e2); Fixes: 8425c41d1ef7 ("net: ll_temac: Extend support to non-device-tree platforms") Signed-off-by: Zhang Changzhong Acked-by: Esben Haabendal Signed-off-by: David S. Miller

drivers: net: xilinx_emaclite: Add COMPILE_TEST support

2020-11-12T22:32:31Z

To improve build testing of this driver, add COMPILE_TEST support. Acked-by: Michal Simek Signed-off-by: Andrew Lunn Signed-off-by: Jakub Kicinski

drivers: net: xilinx_emaclite: Fix -Wpointer-to-int-cast warnings with W=1

2020-11-12T22:32:31Z

drivers/net/ethernet//xilinx/xilinx_emaclite.c:341:35: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 341 | addr = (void __iomem __force *)((u32 __force)addr ^ Use uintptr_t instead of u32 to avoid problems on 64 bit systems. Also, cast the address to an unsigned long for printing. Signed-off-by: Andrew Lunn Signed-off-by: Jakub Kicinski

drivers: net: xilinx_emaclite: Add missing parameter kerneldoc

2020-11-12T22:32:30Z

The txqueue parameter to the watchdog callback is unused in this driver. But it still needs to be documented. Reviewed-by: Michal Simek Signed-off-by: Andrew Lunn Signed-off-by: Jakub Kicinski

net: xilinx: axiethernet: Enable dynamic MDIO MDC

2020-11-07T19:13:52Z

MDIO spec does not require an MDC at all times, only when MDIO transactions are occurring. This patch allows the xilinx_axienet driver to disable the MDC when not in use, and re-enable it when needed. It also simplifies the driver by removing MDC disable and enable in device reset sequence. Signed-off-by: Clayton Rayment Signed-off-by: Radhey Shyam Pandey Signed-off-by: Jakub Kicinski

net: xilinx: axiethernet: Introduce helper functions for MDC enable/disable

2020-11-07T19:13:51Z

Introduce helper functions to enable/disable MDIO interface clock. This change serves a preparatory patch for the coming feature to dynamically control the management bus clock. Signed-off-by: Radhey Shyam Pandey Signed-off-by: Jakub Kicinski