kernel/linux.git/drivers/net/ethernet/arc, branch v4.4.171

net: ethernet: arc: Fix a potential memory leak if an optional regulator is deferred

2018-03-31T16:12:33+00:00

[ Upstream commit 00777fac28ba3e126b9e63e789a613e8bd2cab25 ] If the optional regulator is deferred, we must release some resources. They will be re-allocated when the probe function will be called again. Fixes: 6eacf31139bf ("ethernet: arc: Add support for Rockchip SoC layer device tree bindings") Signed-off-by: Christophe JAILLET Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman

net: arc_emac: fix arc_emac_rx() error paths

2018-03-03T09:19:42+00:00

[ Upstream commit e688822d035b494071ecbadcccbd6f3325fb0f59 ] arc_emac_rx() has some issues found by code review. In case netdev_alloc_skb_ip_align() or dma_map_single() failure rx fifo entry will not be returned to EMAC. In case dma_map_single() failure previously allocated skb became lost to driver. At the same time address of newly allocated skb will not be provided to EMAC. Signed-off-by: Alexander Kochetkov Signed-off-by: David S. Miller Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

net: arc: Fix module autoload for OF platform driver

2015-09-21T23:08:20+00:00

This platform driver has a OF device ID table but the OF module alias information is not created so module autoloading won't work. Signed-off-by: Luis de Bethencourt Signed-off-by: David S. Miller

drivers/net: remove all references to obsolete Ethernet-HOWTO

2015-06-23T13:50:35+00:00

This howto made sense in the 1990s when users had to manually configure ISA cards with jumpers or vendor utilities, but with the implementation of PCI it became increasingly less and less relevant, to the point where it has been well over a decade since I last updated it. And there is no value in anyone else taking over updating it either. However the references to it continue to spread as boiler plate text from one Kconfig file into the next. We are not doing end users any favours by pointing them at this old document, so lets kill it with fire, once and for all, to hopefully stop any further spread. No code is changed in this commit, just Kconfig help text. Signed-off-by: Paul Gortmaker Signed-off-by: David S. Miller

ethernet: arc: ARC_EMAC and EMAC_ROCKCHIP should depend on HAS_DMA

2015-04-23T18:09:58+00:00

If NO_DMA=y: drivers/built-in.o: In function `arc_emac_tx_clean': emac_main.c:(.text+0x2decde): undefined reference to `dma_unmap_single' drivers/built-in.o: In function `arc_emac_rx': emac_main.c:(.text+0x2dee1c): undefined reference to `dma_unmap_single' emac_main.c:(.text+0x2dee72): undefined reference to `dma_map_single' emac_main.c:(.text+0x2dee7e): undefined reference to `dma_mapping_error' drivers/built-in.o: In function `arc_emac_probe': (.text+0x2df2ee): undefined reference to `dmam_alloc_coherent' drivers/built-in.o: In function `arc_emac_open': emac_main.c:(.text+0x2df6d8): undefined reference to `dma_map_single' emac_main.c:(.text+0x2df6e4): undefined reference to `dma_mapping_error' drivers/built-in.o: In function `arc_emac_tx': emac_main.c:(.text+0x2df9e4): undefined reference to `dma_map_single' emac_main.c:(.text+0x2df9f0): undefined reference to `dma_mapping_error' Signed-off-by: Geert Uytterhoeven Signed-off-by: David S. Miller

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

2014-09-23T16:09:27+00:00

Conflicts: arch/mips/net/bpf_jit.c drivers/net/can/flexcan.c Both the flexcan and MIPS bpf_jit conflicts were cases of simple overlapping changes. Signed-off-by: David S. Miller

net: arc_emac: prevent reuse of unreclaimed tx descriptors

2014-09-12T21:18:03+00:00

This patch changes the logic in tx path to ensure that tx descriptors are reused for transmission only after they have been reclaimed by arc_emac_tx_clean(). Signed-off-by: Beniamino Galvani Signed-off-by: David S. Miller

net: arc_emac: enable tx interrupts

2014-09-12T21:17:49+00:00

In the current implementation the cleaning of tx ring is done by the NAPI poll handler, which is scheduled after rx interrupts. Thus, in absence of received packets the reclaim of used tx buffers is never executed, blocking further transmission. This can be easily reproduced starting the transmission of a UDP flow with iperf, which blocks almost immediately because skbs are not returned to the stack and the socket send buffer becomes full. The patch enables tx interrupts so that the tx reclaim is scheduled after completed transmissions. Signed-off-by: Beniamino Galvani Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller

net: ethernet: arc: Don't free Rockchip resources before disconnect from phy

2014-09-10T20:03:00+00:00

Free resources before being disconnected from phy and calling core driver is wrong and should not happen. It avoids a delay of 4-5s caused by the timeout of phy_disconnect(). Signed-off-by: Romain Perier Signed-off-by: David S. Miller

ethernet: arc: Add support for Rockchip SoC layer device tree bindings

2014-09-10T00:29:59+00:00

This patch defines a platform glue layer for Rockchip SoCs which support arc-emac driver. It ensures that regulator for the rmii is on before trying to connect to the ethernet controller. It applies right speed and mode changes to the grf when ethernet settings change. Signed-off-by: Romain Perier Signed-off-by: David S. Miller