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Alexander Duyck 01cfbad79a ipv4: Update parameters for csum_tcpudp_magic to their original types
This patch updates all instances of csum_tcpudp_magic and
csum_tcpudp_nofold to reflect the types that are usually used as the source
inputs.  For example the protocol field is populated based on nexthdr which
is actually an unsigned 8 bit value.  The length is usually populated based
on skb->len which is an unsigned integer.

This addresses an issue in which the IPv6 function csum_ipv6_magic was
generating a checksum using the full 32b of skb->len while
csum_tcpudp_magic was only using the lower 16 bits.  As a result we could
run into issues when attempting to adjust the checksum as there was no
protocol agnostic way to update it.

With this change the value is still truncated as many architectures use
"(len + proto) << 8", however this truncation only occurs for values
greater than 16776960 in length and as such is unlikely to occur as we stop
the inner headers at ~64K in size.

I did have to make a few minor changes in the arm, mn10300, nios2, and
score versions of the function in order to support these changes as they
were either using things such as an OR to combine the protocol and length,
or were using ntohs to convert the length which would have truncated the
value.

I also updated a few spots in terms of whitespace and type differences for
the addresses.  Most of this was just to make sure all of the definitions
were in sync going forward.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-13 23:55:13 -04:00
..
configs [IA64] refresh arch/ia64/configs/* using "make savedefconfig" 2014-09-23 11:09:29 -07:00
dig Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
hp mm: rename alloc_pages_exact_node() to __alloc_pages_node() 2015-09-08 15:35:28 -07:00
include ipv4: Update parameters for csum_tcpudp_magic to their original types 2016-03-13 23:55:13 -04:00
kernel [IA64] Enable copy_file_range syscall for ia64 2016-01-22 14:20:01 -08:00
lib ipv4: Update parameters for csum_tcpudp_magic to their original types 2016-03-13 23:55:13 -04:00
mm libnvdimm for 4.3: 2015-09-08 14:35:59 -07:00
oprofile Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
pci ia64/PCI/ACPI: Use common interface to support PCI host bridge 2015-10-16 22:18:52 +02:00
scripts ia64: remove paravirt code 2015-06-10 14:26:32 -07:00
sn mm: rename alloc_pages_exact_node() to __alloc_pages_node() 2015-09-08 15:35:28 -07:00
uv ia64: change to new flag variables 2011-03-17 14:02:56 +01:00
Kconfig dma-mapping: always provide the dma_map_ops based implementation 2016-01-20 17:09:18 -08:00
Kconfig.debug
Makefile KVM: ia64: remove 2014-11-20 11:08:33 +01:00
install.sh kbuild: use INSTALLKERNEL to select customized installkernel script 2009-09-20 12:18:14 +02:00
module.lds