Benjamin Herrenschmidt 88824e3bf2 net: ethernet: ftgmac100: Fix DMA coherency issue with SW checksum ... We are calling the checksum helper after the dma_map_single() call to map the packet. This is incorrect as the checksumming code will touch the packet from the CPU. This means the cache won't be properly flushes (or the bounce buffering will leave us with the unmodified packet to DMA). This moves the calculation of the checksum & vlan tags to before the DMA mapping. This also has the side effect of fixing another bug: If the checksum helper fails, we goto "drop" to drop the packet, which will not unmap the DMA mapping. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Fixes: 05690d633f ("ftgmac100: Upgrade to NETIF_F_HW_CSUM") Reviewed-by: Vijay Khemka <vijaykhemka@fb.com> Tested-by: Vijay Khemka <vijaykhemka@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2019-10-28 16:22:50 -07:00
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ftgmac100.c	net: ethernet: ftgmac100: Fix DMA coherency issue with SW checksum	2019-10-28 16:22:50 -07:00
ftgmac100.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61	2019-05-24 17:36:45 +02:00
ftmac100.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61	2019-05-24 17:36:45 +02:00
ftmac100.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61	2019-05-24 17:36:45 +02:00
Kconfig	net: ftgmac100: Select ASPEED MDIO driver for the AST2600	2019-08-02 17:56:28 -07:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00