linux-toradex.git/arch/cris/include/arch-v10, branch v4.10 Linux kernel for Apalis and Colibri modules ipv4: Update parameters for csum_tcpudp_magic to their original types 2016-03-14T03:55:13+00:00 Alexander Duyck aduyck@mirantis.com 2016-03-11T22:05:34+00:00 01cfbad79a5e2b835abf6a8154a341d75a6fc8cd 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> 
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>
CRIS: UAPI: fix elf.h export 2015-09-04T22:33:25+00:00 Rabin Vincent rabin@rab.in 2015-03-27T21:35:11+00:00 2493d3e28a22087116158249d79410fd355d1e83 CRIS userspace (uClibc for one) expects asm/elf.h to be exported but this header appears to have gone missing at some point. Move it to uapi/ and export it. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> 
CRIS userspace (uClibc for one) expects asm/elf.h to be exported but
this header appears to have gone missing at some point.  Move it to
uapi/ and export it.

Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
CRIS: don't make asm/elf.h depend on asm/user.h 2015-09-04T22:33:25+00:00 Rabin Vincent rabin@rab.in 2015-05-14T15:00:58+00:00 3a79a075375cebb672ddaea7896378afa0203e87 We're going to export asm/elf.h; remove its dependencies on the non-exported asm/user.h and the unused asm/system.h include. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> 
We're going to export asm/elf.h; remove its dependencies on the
non-exported asm/user.h and the unused asm/system.h include.

Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
CRIS: UAPI: fix ptrace.h 2015-09-04T22:33:25+00:00 Rabin Vincent rabin@rab.in 2015-03-27T21:32:27+00:00 835e4177284e1574033dea47d4bb8e55c21b6345 The exported ptrace.h header on CRIS references an "arch" directory which does not exist. Fix this by having the variants in the same directory and including them conditionally, similar to other architectures. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> 
The exported ptrace.h header on CRIS references an "arch" directory
which does not exist.  Fix this by having the variants in the same
directory and including them conditionally, similar to other
architectures.

Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
CRIS: use generic atomic.h 2015-03-25T09:57:03+00:00 Rabin Vincent rabin@rab.in 2015-02-19T16:54:35+00:00 e7db8a3c96970d847da5611e78b6bde998f13da8 CRIS can use asm-generic's atomic.h. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jespern@axis.com> 
CRIS can use asm-generic's atomic.h.

Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Jesper Nilsson <jespern@axis.com>
CRISv10: remove redundant macros from system.h 2015-03-25T09:55:28+00:00 Rabin Vincent rabin@rab.in 2015-02-22T19:45:46+00:00 3c2165f807570c936b8ed6714edff1ef44def50a All of these are either unused or already provided by other headers, so they can be removed. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jespern@axis.com> 
All of these are either unused or already provided by other headers, so
they can be removed.

Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Jesper Nilsson <jespern@axis.com>
cris: drop _PAGE_FILE and pte_file()-related helpers 2015-02-10T22:30:32+00:00 Kirill A. Shutemov kirill.shutemov@linux.intel.com 2015-02-10T22:10:28+00:00 103f3d9a26df944f4c29de190d72dfbf913c71af We've replaced remap_file_pages(2) implementation with emulation. Nobody creates non-linear mapping anymore. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
We've replaced remap_file_pages(2) implementation with emulation.  Nobody
creates non-linear mapping anymore.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Drop code for CRISv10 CPU simulator 2014-01-15T13:44:02+00:00 Jesper Nilsson jespern@axis.com 2014-01-15T13:42:37+00:00 e269a869417cd4053b37da1b19186902d3cbf63b That simulator is dead and redundant. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> 
That simulator is dead and redundant.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
cris: remove deprecated IRQF_DISABLED 2014-01-08T15:10:18+00:00 Michael Opdenacker michael.opdenacker@free-electrons.com 2013-09-04T05:17:40+00:00 64d8ad933d06f3d5070db8eb855cdfc0a80b595d This patch proposes to remove the IRQF_DISABLED flag from CRIS architecture code. It's a NOOP since 2.6.35 and it will be removed one day. Comments mentioning IRQF_DISABLED are also updated, knowing that all interrupts are now "fast interrupts", their handlers running with interrupts disabled. Don't hesitate to let me know if you have other ways of rephrasing the comments! This is an update for 3.11 of a patch already sent for 3.10 Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com> Signed-off-by: Jesper Nilsson <jespern@axis.com> 
This patch proposes to remove the IRQF_DISABLED flag from CRIS
architecture code. It's a NOOP since 2.6.35 and it will be removed
one day.

Comments mentioning IRQF_DISABLED are also updated, knowing
that all interrupts are now "fast interrupts", their handlers
running with interrupts disabled.

Don't hesitate to let me know if you have other ways of
rephrasing the comments!

This is an update for 3.11 of a patch already sent for 3.10

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Jesper Nilsson <jespern@axis.com>
sched: Rename sched.c as sched/core.c in comments and Documentation 2013-06-19T10:58:42+00:00 Viresh Kumar viresh.kumar@linaro.org 2013-06-04T07:40:24+00:00 0a0fca9d832b704f116a25badd1ca8c16771dcac Most of the stuff from kernel/sched.c was moved to kernel/sched/core.c long time back and the comments/Documentation never got updated. I figured it out when I was going through sched-domains.txt and so thought of fixing it globally. I haven't crossed check if the stuff that is referenced in sched/core.c by all these files is still present and hasn't changed as that wasn't the motive behind this patch. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/cdff76a265326ab8d71922a1db5be599f20aad45.1370329560.git.viresh.kumar@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org> 
Most of the stuff from kernel/sched.c was moved to kernel/sched/core.c long time
back and the comments/Documentation never got updated.

I figured it out when I was going through sched-domains.txt and so thought of
fixing it globally.

I haven't crossed check if the stuff that is referenced in sched/core.c by all
these files is still present and hasn't changed as that wasn't the motive behind
this patch.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/cdff76a265326ab8d71922a1db5be599f20aad45.1370329560.git.viresh.kumar@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>