<feed xmlns='http://www.w3.org/2005/Atom'>
<title>litmus-rt.git/scripts, branch linux-tip</title>
<subtitle>The LITMUS^RT kernel.</subtitle>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/'/>
<entry>
<title>Merge branch 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6</title>
<updated>2010-12-06T00:41:13+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2010-12-06T00:41:13+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=31c67c755363c7e7821221e72f8594ab8995764d'/>
<id>31c67c755363c7e7821221e72f8594ab8995764d</id>
<content type='text'>
* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
  initramfs: Really fix build break on symbol-prefixed archs
  [media] Fix Kconfig errors due to two visible menus
  i2c/algos: convert Kconfig to use the menu's `visible' keyword
  media/video: convert Kconfig to use the menu's `visible' keyword
  Revert "i2c: Fix Kconfig dependencies"
  kconfig: regen parser
  kconfig: add an option to determine a menu's visibility
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6:
  initramfs: Really fix build break on symbol-prefixed archs
  [media] Fix Kconfig errors due to two visible menus
  i2c/algos: convert Kconfig to use the menu's `visible' keyword
  media/video: convert Kconfig to use the menu's `visible' keyword
  Revert "i2c: Fix Kconfig dependencies"
  kconfig: regen parser
  kconfig: add an option to determine a menu's visibility
</pre>
</div>
</content>
</entry>
<entry>
<title>scripts: fix gfp-translate for recent changes to gfp.h</title>
<updated>2010-11-24T21:50:49+00:00</updated>
<author>
<name>Mel Gorman</name>
<email>mel@csn.ul.ie</email>
</author>
<published>2010-11-24T20:57:17+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=27af038494ef2f3f3a23aa040bfc1ea29d99d76d'/>
<id>27af038494ef2f3f3a23aa040bfc1ea29d99d76d</id>
<content type='text'>
The recent changes to gfp.h to satisfy sparse broke scripts/gfp-translate.
This patch fixes it up to work with old and new versions of gfp.h .

[akpm@linux-foundation.org: use `grep -q', per WANG Cong]
Signed-off-by: Mel Gorman &lt;mel@csn.ul.ie&gt;
Cc: Namhyung Kim &lt;namhyung@gmail.com&gt;
Reviewed-by: WANG Cong &lt;xiyou.wangcong@gmail.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The recent changes to gfp.h to satisfy sparse broke scripts/gfp-translate.
This patch fixes it up to work with old and new versions of gfp.h .

[akpm@linux-foundation.org: use `grep -q', per WANG Cong]
Signed-off-by: Mel Gorman &lt;mel@csn.ul.ie&gt;
Cc: Namhyung Kim &lt;namhyung@gmail.com&gt;
Reviewed-by: WANG Cong &lt;xiyou.wangcong@gmail.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>kconfig: regen parser</title>
<updated>2010-11-22T13:27:32+00:00</updated>
<author>
<name>Arnaud Lacombe</name>
<email>lacombar@gmail.com</email>
</author>
<published>2010-11-06T21:30:24+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=09899c93b183870b122c94317f63344df43368e9'/>
<id>09899c93b183870b122c94317f63344df43368e9</id>
<content type='text'>
Signed-off-by: Arnaud Lacombe &lt;lacombar@gmail.com&gt;
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Signed-off-by: Arnaud Lacombe &lt;lacombar@gmail.com&gt;
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>kconfig: add an option to determine a menu's visibility</title>
<updated>2010-11-22T13:27:17+00:00</updated>
<author>
<name>Arnaud Lacombe</name>
<email>lacombar@gmail.com</email>
</author>
<published>2010-11-06T21:30:23+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=86e187ff9bce9fbed7bfed92ae34f491cf1af50f'/>
<id>86e187ff9bce9fbed7bfed92ae34f491cf1af50f</id>
<content type='text'>
This option is aimed to add the possibility to control a menu's visibility
without adding dependency to the expression to all the submenu.

Signed-off-by: Arnaud Lacombe &lt;lacombar@gmail.com&gt;
Acked-by: Mauro Carvalho Chehab &lt;mchehab@redhat.com&gt;
Tested-by: Mauro Carvalho Chehab &lt;mchehab@redhat.com&gt;
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This option is aimed to add the possibility to control a menu's visibility
without adding dependency to the expression to all the submenu.

Signed-off-by: Arnaud Lacombe &lt;lacombar@gmail.com&gt;
Acked-by: Mauro Carvalho Chehab &lt;mchehab@redhat.com&gt;
Tested-by: Mauro Carvalho Chehab &lt;mchehab@redhat.com&gt;
Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>kernel-doc: escape xml for structs</title>
<updated>2010-11-18T23:00:46+00:00</updated>
<author>
<name>Randy Dunlap</name>
<email>randy.dunlap@oracle.com</email>
</author>
<published>2010-11-18T20:27:31+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=2b35f4d9cab365d37c7b34ce51e1c1144c312d05'/>
<id>2b35f4d9cab365d37c7b34ce51e1c1144c312d05</id>
<content type='text'>
scripts/kernel-doc was leaving unescaped '&lt;', '&gt;', and '&amp;' in
generated xml output for structs.  This causes xml parser errors.
Convert these characters to "&amp;lt;", "&amp;gt;", and "&amp;amp;" as needed
to prevent errors.

Most of the conversion was already done; complete it just before
output.

Documentation/DocBook/device-drivers.xml:41883: parser error : StartTag: invalid element name
#define INPUT_KEYMAP_BY_INDEX	(1 &lt;&lt; 0)

Signed-off-by: Randy Dunlap &lt;randy.dunlap@oracle.com&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
scripts/kernel-doc was leaving unescaped '&lt;', '&gt;', and '&amp;' in
generated xml output for structs.  This causes xml parser errors.
Convert these characters to "&amp;lt;", "&amp;gt;", and "&amp;amp;" as needed
to prevent errors.

Most of the conversion was already done; complete it just before
output.

Documentation/DocBook/device-drivers.xml:41883: parser error : StartTag: invalid element name
#define INPUT_KEYMAP_BY_INDEX	(1 &lt;&lt; 0)

Signed-off-by: Randy Dunlap &lt;randy.dunlap@oracle.com&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>kconfig: sym_expand_string_value: allow for string termination when reallocing</title>
<updated>2010-11-01T21:06:00+00:00</updated>
<author>
<name>Andy Whitcroft</name>
<email>apw@canonical.com</email>
</author>
<published>2010-11-01T21:01:44+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=020e773f6b2e797a13d23723773ed1b3ba2c35dc'/>
<id>020e773f6b2e797a13d23723773ed1b3ba2c35dc</id>
<content type='text'>
When expanding a parameterised string we may run out of space, this
triggers a realloc.  When computing the new allocation size we do not
allow for the terminating '\0'.  Allow for this when calculating the new
length.

Signed-off-by: Andy Whitcroft &lt;apw@canonical.com&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
When expanding a parameterised string we may run out of space, this
triggers a realloc.  When computing the new allocation size we do not
allow for the terminating '\0'.  Allow for this when calculating the new
length.

Signed-off-by: Andy Whitcroft &lt;apw@canonical.com&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branches 'irq-core-for-linus' and 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip</title>
<updated>2010-11-01T00:40:24+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2010-11-01T00:40:24+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=82279e6bd7643da1b3fbda42555c3238c7b00d38'/>
<id>82279e6bd7643da1b3fbda42555c3238c7b00d38</id>
<content type='text'>
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  genirq: Fix up irq_node() for irq_data changes.
  genirq: Add single IRQ reservation helper
  genirq: Warn if enable_irq is called before irq is set up

* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  semaphore: Remove mutex emulation
  staging: Final semaphore cleanup
  jbd2: Convert jbd2_slab_create_sem to mutex
  hpfs: Convert sbi-&gt;hpfs_creation_de to mutex

Fix up trivial change/delete conflicts with deleted 'dream' drivers
(drivers/staging/dream/camera/{mt9d112.c,mt9p012_fox.c,mt9t013.c,s5k3e2fx.c})
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  genirq: Fix up irq_node() for irq_data changes.
  genirq: Add single IRQ reservation helper
  genirq: Warn if enable_irq is called before irq is set up

* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  semaphore: Remove mutex emulation
  staging: Final semaphore cleanup
  jbd2: Convert jbd2_slab_create_sem to mutex
  hpfs: Convert sbi-&gt;hpfs_creation_de to mutex

Fix up trivial change/delete conflicts with deleted 'dream' drivers
(drivers/staging/dream/camera/{mt9d112.c,mt9p012_fox.c,mt9t013.c,s5k3e2fx.c})
</pre>
</div>
</content>
</entry>
<entry>
<title>semaphore: Remove mutex emulation</title>
<updated>2010-10-30T10:12:50+00:00</updated>
<author>
<name>Thomas Gleixner</name>
<email>tglx@linutronix.de</email>
</author>
<published>2010-09-07T14:34:01+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=4882720b267b7b1d1b0ce08334b205f0329d4615'/>
<id>4882720b267b7b1d1b0ce08334b205f0329d4615</id>
<content type='text'>
Semaphores used as mutexes have been deprecated for years. Now that
all users are either converted to real semaphores or to mutexes remove
the cruft.

Signed-off-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: Peter Zijlstra &lt;peterz@infradead.org&gt;
Cc: Christoph Hellwig &lt;hch@infradead.org&gt;
LKML-Reference: &lt;20100907125057.562399240@linutronix.de&gt;

</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Semaphores used as mutexes have been deprecated for years. Now that
all users are either converted to real semaphores or to mutexes remove
the cruft.

Signed-off-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: Peter Zijlstra &lt;peterz@infradead.org&gt;
Cc: Christoph Hellwig &lt;hch@infradead.org&gt;
LKML-Reference: &lt;20100907125057.562399240@linutronix.de&gt;

</pre>
</div>
</content>
</entry>
<entry>
<title>Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-kconfig</title>
<updated>2010-10-29T21:43:30+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2010-10-29T21:43:30+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=b7bdcc47114595b4b359fe0f7d941bb901e9261d'/>
<id>b7bdcc47114595b4b359fe0f7d941bb901e9261d</id>
<content type='text'>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-kconfig:
  kconfig: Have streamline_config process menuconfigs too
  kconfig: Fix streamline_config to read multi line deps in Kconfig files
  kconfig: Fix missing declaration of variable $dir in streamline_config.pl
  kconfig: Fix variable name typo %prompts in streamline_config.pl
  kconfig: Make localmodconfig handle environment variables
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-kconfig:
  kconfig: Have streamline_config process menuconfigs too
  kconfig: Fix streamline_config to read multi line deps in Kconfig files
  kconfig: Fix missing declaration of variable $dir in streamline_config.pl
  kconfig: Fix variable name typo %prompts in streamline_config.pl
  kconfig: Make localmodconfig handle environment variables
</pre>
</div>
</content>
</entry>
<entry>
<title>ftrace/MIPS: Add module support for C version of recordmcount</title>
<updated>2010-10-29T18:08:55+00:00</updated>
<author>
<name>Wu Zhangjin</name>
<email>wuzhangjin@gmail.com</email>
</author>
<published>2010-10-27T10:59:08+00:00</published>
<link rel='alternate' type='text/html' href='http://rtsrv.cs.unc.edu/cgit/cgit.cgi/litmus-rt.git/commit/?id=412910cd046c1f14f0fba9c0aec401d47e57dcd1'/>
<id>412910cd046c1f14f0fba9c0aec401d47e57dcd1</id>
<content type='text'>
Since MIPS modules' address space differs from the core kernel space, to access
the _mcount in the core kernel, the kernel functions in modules must use long
call (-mlong-calls): load the _mcount address into one register and jump to the
address stored by the register:

 c:  3c030000        lui     v1,0x0  &lt;--------&gt;  b label
           c: R_MIPS_HI16  _mcount
           c: R_MIPS_NONE  *ABS*
           c: R_MIPS_NONE  *ABS*
10:  64630000        daddiu  v1,v1,0
          10: R_MIPS_LO16 _mcount
          10: R_MIPS_NONE *ABS*
          10: R_MIPS_NONE *ABS*
14:	03e0082d 	move	at,ra
18:	0060f809 	jalr	v1
label:

In the old Perl version of recordmcount, we only need to record the position of
the 1st R_MIPS_HI16 type of _mcount, and later, in ftrace_make_nop(), replace
the instruction in this position by a "b label" and in ftrace_make_call(),
replace it back.

But, the default C version of recordmcount records all of the _mcount symbols,
so, we must filter the 2nd _mcount like the Perl version of recordmcount does.

The C version of recordmcount copes with the symbols before they are linked, So
It doesn't know the type of the symbols and therefore can not filter the
symbols as the Perl version of recordmcount does. But as we can see above, the
2nd _mcount symbols of the long call alawys follows the 1st _mcount symbol of
the same long call, which means the offset from the 1st to the 2nd is fixed, it
is 0x10-0xc = 4 here, 4 is the length of the 1st load instruciton, for MIPS has
fixed length of instructions, this offset is always 4.

And as we know, the _mcount is inserted into the entry of every kernel
function, the offset between the other _mcount's is expected to be always
bigger than 4. So, to filter the 2ns _mcount symbol of the long call, we can
simply check the offset between two _mcount symbols, If it is 4, then, filter
the 2nd _mcount symbol.

To avoid touching too much code, an 'empty' function fn_is_fake_mcount() is
added for all of the archs, and the specific archs can override it via chaning
the function pointer: is_fake_mcount in do_file() with the e_machine. e.g. This
patch adds MIPS_is_fake_mcount() to override the default fn_is_fake_mcount()
pointed by is_fake_mcount.

This fn_is_fake_mcount() checks if the _mcount symbol is fake, e.g. the 2nd
_mcount symbol of the long call is fake, for there are 2 _mcount symbols mapped
to one real mcount call, so, one of them is fake and must be filtered.

This fn_is_fake_mcount() is called in sift_rel_mcount() after finding the
_mcount symbols and before adding the _mcount symbol into mrelp, so, it can
prevent the fake mcount symbol going into the last __mcount_loc table.

Signed-off-by: Wu Zhangjin &lt;wuzhangjin@gmail.com&gt;
LKML-Reference: &lt;b866f0138224340a132d31861fa3f9300dee30ac.1288176026.git.wuzhangjin@gmail.com&gt;
Signed-off-by: Steven Rostedt &lt;rostedt@goodmis.org&gt;
Signed-off-by: Ralf Baechle &lt;ralf@linux-mips.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Since MIPS modules' address space differs from the core kernel space, to access
the _mcount in the core kernel, the kernel functions in modules must use long
call (-mlong-calls): load the _mcount address into one register and jump to the
address stored by the register:

 c:  3c030000        lui     v1,0x0  &lt;--------&gt;  b label
           c: R_MIPS_HI16  _mcount
           c: R_MIPS_NONE  *ABS*
           c: R_MIPS_NONE  *ABS*
10:  64630000        daddiu  v1,v1,0
          10: R_MIPS_LO16 _mcount
          10: R_MIPS_NONE *ABS*
          10: R_MIPS_NONE *ABS*
14:	03e0082d 	move	at,ra
18:	0060f809 	jalr	v1
label:

In the old Perl version of recordmcount, we only need to record the position of
the 1st R_MIPS_HI16 type of _mcount, and later, in ftrace_make_nop(), replace
the instruction in this position by a "b label" and in ftrace_make_call(),
replace it back.

But, the default C version of recordmcount records all of the _mcount symbols,
so, we must filter the 2nd _mcount like the Perl version of recordmcount does.

The C version of recordmcount copes with the symbols before they are linked, So
It doesn't know the type of the symbols and therefore can not filter the
symbols as the Perl version of recordmcount does. But as we can see above, the
2nd _mcount symbols of the long call alawys follows the 1st _mcount symbol of
the same long call, which means the offset from the 1st to the 2nd is fixed, it
is 0x10-0xc = 4 here, 4 is the length of the 1st load instruciton, for MIPS has
fixed length of instructions, this offset is always 4.

And as we know, the _mcount is inserted into the entry of every kernel
function, the offset between the other _mcount's is expected to be always
bigger than 4. So, to filter the 2ns _mcount symbol of the long call, we can
simply check the offset between two _mcount symbols, If it is 4, then, filter
the 2nd _mcount symbol.

To avoid touching too much code, an 'empty' function fn_is_fake_mcount() is
added for all of the archs, and the specific archs can override it via chaning
the function pointer: is_fake_mcount in do_file() with the e_machine. e.g. This
patch adds MIPS_is_fake_mcount() to override the default fn_is_fake_mcount()
pointed by is_fake_mcount.

This fn_is_fake_mcount() checks if the _mcount symbol is fake, e.g. the 2nd
_mcount symbol of the long call is fake, for there are 2 _mcount symbols mapped
to one real mcount call, so, one of them is fake and must be filtered.

This fn_is_fake_mcount() is called in sift_rel_mcount() after finding the
_mcount symbols and before adding the _mcount symbol into mrelp, so, it can
prevent the fake mcount symbol going into the last __mcount_loc table.

Signed-off-by: Wu Zhangjin &lt;wuzhangjin@gmail.com&gt;
LKML-Reference: &lt;b866f0138224340a132d31861fa3f9300dee30ac.1288176026.git.wuzhangjin@gmail.com&gt;
Signed-off-by: Steven Rostedt &lt;rostedt@goodmis.org&gt;
Signed-off-by: Ralf Baechle &lt;ralf@linux-mips.org&gt;
</pre>
</div>
</content>
</entry>
</feed>
