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Eric Dumazet 12b03558ce net: sungem: fix rx checksum support After commit `88078d98d1` ("net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends"), sungem owners reported the infamous "eth0: hw csum failure" message. CHECKSUM_COMPLETE has in fact never worked for this driver, but this was masked by the fact that upper stacks had to strip the FCS, and therefore skb->ip_summed was set back to CHECKSUM_NONE before my recent change. Driver configures a number of bytes to skip when the chip computes the checksum, and for some reason only half of the Ethernet header was skipped. Then a second problem is that we should strip the FCS by default, unless the driver is updated to eventually support NETIF_F_RXFCS in the future. Finally, a driver should check if NETIF_F_RXCSUM feature is enabled or not, so that the admin can turn off rx checksum if wanted. Many thanks to Andreas Schwab and Mathieu Malaterre for their help in debugging this issue. Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Meelis Roos <mroos@linux.ee> Reported-by: Mathieu Malaterre <malat@debian.org> Reported-by: Andreas Schwab <schwab@linux-m68k.org> Tested-by: Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: David S. Miller <davem@davemloft.net>		2018-06-20 14:30:06 +09:00
arch
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drivers	net: sungem: fix rx checksum support	2018-06-20 14:30:06 +09:00
firmware
fs	Merge branch 'afs-proc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2018-06-16 16:32:04 +09:00
include	net/ipv6: respect rcu grace period before freeing fib6_info	2018-06-20 07:57:23 +09:00
init
ipc
kernel	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf	2018-06-17 07:54:24 +09:00
lib
LICENSES
mm
net	bpfilter: ignore binary files	2018-06-20 09:07:46 +09:00
samples
scripts
security
sound
tools	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf	2018-06-17 07:54:24 +09:00
usr
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MAINTAINERS	MAINTAINERS: Add Sam as the maintainer for NCSI	2018-06-20 07:26:58 +09:00
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README

README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.