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<title>linux-toradex.git/net/dccp/ackvec.c, branch v2.6.36.4</title>
<subtitle>Linux kernel for Apalis and Colibri modules</subtitle>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/'/>
<entry>
<title>net: dccp: fix sign bug</title>
<updated>2010-07-18T22:07:14+00:00</updated>
<author>
<name>Kulikov Vasiliy</name>
<email>segooon@gmail.com</email>
</author>
<published>2010-07-17T05:21:00+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=8e64159dfb480b30233d947d5a3cd793dfea738f'/>
<id>8e64159dfb480b30233d947d5a3cd793dfea738f</id>
<content type='text'>
'gap' is unsigned, so this code is wrong:

    gap = -new_head;
    ...
    if (gap &gt; 0) { ... }

Make 'gap' signed.

The semantic patch that finds this problem (many false-positive results):
(http://coccinelle.lip6.fr/)

// &lt;smpl&gt;
@ r1 @
identifier f;
@@
int f(...) { ... }

@@
identifier r1.f;
type T;
unsigned T x;
@@

*x = f(...)
 ...
*x &gt; 0

Signed-off-by: Kulikov Vasiliy &lt;segooon@gmail.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
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<pre>
'gap' is unsigned, so this code is wrong:

    gap = -new_head;
    ...
    if (gap &gt; 0) { ... }

Make 'gap' signed.

The semantic patch that finds this problem (many false-positive results):
(http://coccinelle.lip6.fr/)

// &lt;smpl&gt;
@ r1 @
identifier f;
@@
int f(...) { ... }

@@
identifier r1.f;
type T;
unsigned T x;
@@

*x = f(...)
 ...
*x &gt; 0

Signed-off-by: Kulikov Vasiliy &lt;segooon@gmail.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>dccp: remove unused function argument</title>
<updated>2010-06-26T04:33:14+00:00</updated>
<author>
<name>Gerrit Renker</name>
<email>gerrit@erg.abdn.ac.uk</email>
</author>
<published>2010-06-22T01:14:34+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=a7d13fbf85375698879d16f118af77fbfcc2de44'/>
<id>a7d13fbf85375698879d16f118af77fbfcc2de44</id>
<content type='text'>
This removes an unused 'sk' argument from several option-inserting functions.

Signed-off-by: Gerrit Renker &lt;gerrit@erg.abdn.ac.uk&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This removes an unused 'sk' argument from several option-inserting functions.

Signed-off-by: Gerrit Renker &lt;gerrit@erg.abdn.ac.uk&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>dccp: Set per-connection CCIDs via socket options</title>
<updated>2008-11-24T00:02:31+00:00</updated>
<author>
<name>Gerrit Renker</name>
<email>gerrit@erg.abdn.ac.uk</email>
</author>
<published>2008-11-24T00:02:31+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=b20a9c24d5c5d466d7e4a25c6f1bedbd2d16ad4f'/>
<id>b20a9c24d5c5d466d7e4a25c6f1bedbd2d16ad4f</id>
<content type='text'>
With this patch, TX/RX CCIDs can now be changed on a per-connection
basis, which overrides the defaults set by the global sysctl variables
for TX/RX CCIDs.

To make full use of this facility, the remaining patches of this patch
set are needed, which track dependencies and activate negotiated
feature values.

Signed-off-by: Gerrit Renker &lt;gerrit@erg.abdn.ac.uk&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
With this patch, TX/RX CCIDs can now be changed on a per-connection
basis, which overrides the defaults set by the global sysctl variables
for TX/RX CCIDs.

To make full use of this facility, the remaining patches of this patch
set are needed, which track dependencies and activate negotiated
feature values.

Signed-off-by: Gerrit Renker &lt;gerrit@erg.abdn.ac.uk&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>dccp: Fix sparse warnings</title>
<updated>2008-06-11T10:19:09+00:00</updated>
<author>
<name>Gerrit Renker</name>
<email>gerrit@erg.abdn.ac.uk</email>
</author>
<published>2008-06-11T10:19:09+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=1e2f0e5e8376f2a0ada8760fc9d3104e1a81382b'/>
<id>1e2f0e5e8376f2a0ada8760fc9d3104e1a81382b</id>
<content type='text'>
This patch fixes the following sparse warnings:
 * nested min(max()) expression:
   net/dccp/ccids/ccid3.c:91:21: warning: symbol '__x' shadows an earlier one
   net/dccp/ccids/ccid3.c:91:21: warning: symbol '__y' shadows an earlier one
   
 * Declaration of function prototypes in .c instead of .h file, resulting in
   "should it be static?" warnings. 

 * Declared "struct dccpw" static (local to dccp_probe).
 
 * Disabled dccp_delayed_ack() - not fully removed due to RFC 4340, 11.3
   ("Receivers SHOULD implement delayed acknowledgement timers ...").

 * Used a different local variable name to avoid
   net/dccp/ackvec.c:293:13: warning: symbol 'state' shadows an earlier one
   net/dccp/ackvec.c:238:33: originally declared here

 * Removed unused functions `dccp_ackvector_print' and `dccp_ackvec_print'.

Signed-off-by: Gerrit Renker &lt;gerrit@erg.abdn.ac.uk&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This patch fixes the following sparse warnings:
 * nested min(max()) expression:
   net/dccp/ccids/ccid3.c:91:21: warning: symbol '__x' shadows an earlier one
   net/dccp/ccids/ccid3.c:91:21: warning: symbol '__y' shadows an earlier one
   
 * Declaration of function prototypes in .c instead of .h file, resulting in
   "should it be static?" warnings. 

 * Declared "struct dccpw" static (local to dccp_probe).
 
 * Disabled dccp_delayed_ack() - not fully removed due to RFC 4340, 11.3
   ("Receivers SHOULD implement delayed acknowledgement timers ...").

 * Used a different local variable name to avoid
   net/dccp/ackvec.c:293:13: warning: symbol 'state' shadows an earlier one
   net/dccp/ackvec.c:238:33: originally declared here

 * Removed unused functions `dccp_ackvector_print' and `dccp_ackvec_print'.

Signed-off-by: Gerrit Renker &lt;gerrit@erg.abdn.ac.uk&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>[ACKVEC]: Reduce length of identifiers</title>
<updated>2008-01-28T22:54:51+00:00</updated>
<author>
<name>Gerrit Renker</name>
<email>gerrit@erg.abdn.ac.uk</email>
</author>
<published>2007-12-30T12:19:31+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=a47c51044a77124ce66cd8513bba6f4d7673e43d'/>
<id>a47c51044a77124ce66cd8513bba6f4d7673e43d</id>
<content type='text'>
This is reduces the length of the struct ackvec/ackvec_record fields. It is
a purely text-based replacement:

	s#dccpavr_#avr_#g;
	s#dccpav_#av_#g;

and increases readability somewhat.

Signed-off-by: Gerrit Renker &lt;gerrit@erg.abdn.ac.uk&gt;
Signed-off-by: Arnaldo Carvalho de Melo &lt;acme@redhat.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This is reduces the length of the struct ackvec/ackvec_record fields. It is
a purely text-based replacement:

	s#dccpavr_#avr_#g;
	s#dccpav_#av_#g;

and increases readability somewhat.

Signed-off-by: Gerrit Renker &lt;gerrit@erg.abdn.ac.uk&gt;
Signed-off-by: Arnaldo Carvalho de Melo &lt;acme@redhat.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>[NET]: DIV_ROUND_UP cleanup (part two)</title>
<updated>2007-10-10T23:48:37+00:00</updated>
<author>
<name>Ilpo Järvinen</name>
<email>ilpo.jarvinen@helsinki.fi</email>
</author>
<published>2007-08-28T22:50:33+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=172589ccdde41b59861c92c4a971b95514ef24e3'/>
<id>172589ccdde41b59861c92c4a971b95514ef24e3</id>
<content type='text'>
Hopefully captured all single statement cases under net/. I'm
not too sure if there is some policy about #includes that are
"guaranteed" (ie., in the current tree) to be available through
some other #included header, so I just added linux/kernel.h to
each changed file that didn't #include it previously.

Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@helsinki.fi&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Hopefully captured all single statement cases under net/. I'm
not too sure if there is some policy about #includes that are
"guaranteed" (ie., in the current tree) to be available through
some other #included header, so I just added linux/kernel.h to
each changed file that didn't #include it previously.

Signed-off-by: Ilpo Järvinen &lt;ilpo.jarvinen@helsinki.fi&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>[DCCP] ackvec: Convert to ktime_t</title>
<updated>2007-10-10T23:48:14+00:00</updated>
<author>
<name>Arnaldo Carvalho de Melo</name>
<email>acme@ghostprotocols.net</email>
</author>
<published>2007-08-20T00:17:25+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=b8bda9d70842dab7902f0681e1297dcf0460fc94'/>
<id>b8bda9d70842dab7902f0681e1297dcf0460fc94</id>
<content type='text'>
Signed-off-by: Arnaldo Carvalho de Melo &lt;acme@ghostprotocols.net&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Signed-off-by: Arnaldo Carvalho de Melo &lt;acme@ghostprotocols.net&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>mm: Remove slab destructors from kmem_cache_create().</title>
<updated>2007-07-20T01:11:58+00:00</updated>
<author>
<name>Paul Mundt</name>
<email>lethal@linux-sh.org</email>
</author>
<published>2007-07-20T01:11:58+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=20c2df83d25c6a95affe6157a4c9cac4cf5ffaac'/>
<id>20c2df83d25c6a95affe6157a4c9cac4cf5ffaac</id>
<content type='text'>
Slab destructors were no longer supported after Christoph's
c59def9f222d44bb7e2f0a559f2906191a0862d7 change. They've been
BUGs for both slab and slub, and slob never supported them
either.

This rips out support for the dtor pointer from kmem_cache_create()
completely and fixes up every single callsite in the kernel (there were
about 224, not including the slab allocator definitions themselves,
or the documentation references).

Signed-off-by: Paul Mundt &lt;lethal@linux-sh.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Slab destructors were no longer supported after Christoph's
c59def9f222d44bb7e2f0a559f2906191a0862d7 change. They've been
BUGs for both slab and slub, and slob never supported them
either.

This rips out support for the dtor pointer from kmem_cache_create()
completely and fixes up every single callsite in the kernel (there were
about 224, not including the slab allocator definitions themselves,
or the documentation references).

Signed-off-by: Paul Mundt &lt;lethal@linux-sh.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>[DCCP]: 48-bit sequence number arithmetic</title>
<updated>2007-04-26T05:26:42+00:00</updated>
<author>
<name>Gerrit Renker</name>
<email>gerrit@erg.abdn.ac.uk</email>
</author>
<published>2007-03-20T15:26:51+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=6b811d43f6cc9eccdfc011a99f8571df2abc46d1'/>
<id>6b811d43f6cc9eccdfc011a99f8571df2abc46d1</id>
<content type='text'>
This patch
 * organizes the sequence arithmetic functions into one corner of dccp.h
 * performs a small modification of dccp_set_seqno to make it more widely reusable
   (now it is safe to use any number, since it performs modulo-2^48 assignment)
 * adds functions and generic macros for 48-bit sequence arithmetic:
 	--48 bit complement
 	--modulo-48 addition and modulo-48 subtraction
	--dccp_inc_seqno now a special case of add48
Constants renamed following a suggestion by Arnaldo.

Signed-off-by: Gerrit Renker &lt;gerrit@erg.abdn.ac.uk&gt;
Acked-by: Ian McDonald &lt;ian.mcdonald@jandi.co.nz&gt;
Signed-off-by: Arnaldo Carvalho de Melo &lt;acme@redhat.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This patch
 * organizes the sequence arithmetic functions into one corner of dccp.h
 * performs a small modification of dccp_set_seqno to make it more widely reusable
   (now it is safe to use any number, since it performs modulo-2^48 assignment)
 * adds functions and generic macros for 48-bit sequence arithmetic:
 	--48 bit complement
 	--modulo-48 addition and modulo-48 subtraction
	--dccp_inc_seqno now a special case of add48
Constants renamed following a suggestion by Arnaldo.

Signed-off-by: Gerrit Renker &lt;gerrit@erg.abdn.ac.uk&gt;
Acked-by: Ian McDonald &lt;ian.mcdonald@jandi.co.nz&gt;
Signed-off-by: Arnaldo Carvalho de Melo &lt;acme@redhat.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>[DCCP]: Whitespace cleanups</title>
<updated>2006-12-11T22:35:00+00:00</updated>
<author>
<name>Arnaldo Carvalho de Melo</name>
<email>acme@mandriva.com</email>
</author>
<published>2006-12-10T18:01:18+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=8109b02b5397ed52a32c116163a62a34f4768b26'/>
<id>8109b02b5397ed52a32c116163a62a34f4768b26</id>
<content type='text'>
That accumulated over the last months hackaton, shame on me for not
using git-apply whitespace helping hand, will do that from now on.

Signed-off-by: Arnaldo Carvalho de Melo &lt;acme@mandriva.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
That accumulated over the last months hackaton, shame on me for not
using git-apply whitespace helping hand, will do that from now on.

Signed-off-by: Arnaldo Carvalho de Melo &lt;acme@mandriva.com&gt;
</pre>
</div>
</content>
</entry>
</feed>
