<feed xmlns='http://www.w3.org/2005/Atom'>
<title>lwn.git/drivers/net/wireless/hostap/hostap_80211_tx.c, branch v3.10.84</title>
<subtitle>Linux kernel documentation tree maintained by Jonathan Corbet</subtitle>
<id>http://mirrors.hust.edu.cn/git/lwn.git/atom?h=v3.10.84</id>
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<updated>2011-10-31T23:31:08+00:00</updated>
<entry>
<title>drivers/net: Add export.h to files using EXPORT_SYMBOL/THIS_MODULE</title>
<updated>2011-10-31T23:31:08+00:00</updated>
<author>
<name>Paul Gortmaker</name>
<email>paul.gortmaker@windriver.com</email>
</author>
<published>2011-05-27T20:14:23+00:00</published>
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<id>urn:sha1:ee40fa0656a730491765545ff7550f3c1ceb0fbc</id>
<content type='text'>
These were getting the macros from an implicit module.h
include via device.h, but we are planning to clean that up.

Signed-off-by: Paul Gortmaker &lt;paul.gortmaker@windriver.com&gt;

drivers/net: Add export.h to wireless/brcm80211/brcmfmac/bcmsdh.c

This relatively recently added file uses EXPORT_SYMBOL and hence
needs export.h included so that it is compatible with the module.h
split up work.

Signed-off-by: Paul Gortmaker &lt;paul.gortmaker@windriver.com&gt;
</content>
</entry>
<entry>
<title>include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h</title>
<updated>2010-03-30T13:02:32+00:00</updated>
<author>
<name>Tejun Heo</name>
<email>tj@kernel.org</email>
</author>
<published>2010-03-24T08:04:11+00:00</published>
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<id>urn:sha1:5a0e3ad6af8660be21ca98a971cd00f331318c05</id>
<content type='text'>
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -&gt; slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo &lt;tj@kernel.org&gt;
Guess-its-ok-by: Christoph Lameter &lt;cl@linux-foundation.org&gt;
Cc: Ingo Molnar &lt;mingo@redhat.com&gt;
Cc: Lee Schermerhorn &lt;Lee.Schermerhorn@hp.com&gt;
</content>
</entry>
<entry>
<title>wireless: convert drivers to netdev_tx_t</title>
<updated>2009-09-01T08:14:04+00:00</updated>
<author>
<name>Stephen Hemminger</name>
<email>shemminger@vyatta.com</email>
</author>
<published>2009-08-31T19:50:57+00:00</published>
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<id>urn:sha1:d0cf9c0dadcdc89a755bcb301cfc9c796eb28ccf</id>
<content type='text'>
Mostly just simple conversions:
  * ray_cs had bogus return of NET_TX_LOCKED but driver
    was not using NETIF_F_LLTX
  * hostap and ipw2x00 had some code that returned value
    from a called function that also had to change to return netdev_tx_t

Signed-off-by: Stephen Hemminger &lt;shemminger@vyatta.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
</entry>
<entry>
<title>net: convert remaining non-symbolic return values in ndo_start_xmit() functions</title>
<updated>2009-07-06T02:23:38+00:00</updated>
<author>
<name>Patrick McHardy</name>
<email>kaber@trash.net</email>
</author>
<published>2009-07-06T02:23:38+00:00</published>
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<id>urn:sha1:ec634fe328182a1a098585bfc7b69e5042bdb08d</id>
<content type='text'>
This patch converts the remaining occurences of raw return values to their
symbolic counterparts in ndo_start_xmit() functions that were missed by the
previous automatic conversion.

Additionally code that assumed the symbolic value of NETDEV_TX_OK to be zero
is changed to explicitly use NETDEV_TX_OK.

Signed-off-by: Patrick McHardy &lt;kaber@trash.net&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
</entry>
<entry>
<title>net: use symbolic values for ndo_start_xmit() return codes</title>
<updated>2009-06-13T08:18:50+00:00</updated>
<author>
<name>Patrick McHardy</name>
<email>kaber@trash.net</email>
</author>
<published>2009-06-12T06:22:29+00:00</published>
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<id>urn:sha1:5b548140225c6bbbbd560551dd1048b2c0ce58be</id>
<content type='text'>
Convert magic values 1 and -1 to NETDEV_TX_BUSY and NETDEV_TX_LOCKED respectively.

0 (NETDEV_TX_OK) is not changed to keep the noise down, except in very few cases
where its in direct proximity to one of the other values.

Signed-off-by: Patrick McHardy &lt;kaber@trash.net&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
</entry>
<entry>
<title>hostap: convert usage of net/ieee80211.h to linux/ieee80211.h</title>
<updated>2009-02-27T19:51:41+00:00</updated>
<author>
<name>Dan Williams</name>
<email>dcbw@redhat.com</email>
</author>
<published>2009-02-11T22:17:10+00:00</published>
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<id>urn:sha1:1ea893fde29d8cf1639da8989f4b843dc3283ca8</id>
<content type='text'>
So that net/ieee80211.h can be made private to ipw2x00 in a follow-up.

Signed-off-by: Dan Williams &lt;dcbw@redhat.com&gt;
Signed-off-by: John W. Linville &lt;linville@tuxdriver.com&gt;
</content>
</entry>
<entry>
<title>lib80211: absorb crypto bits from net/ieee80211</title>
<updated>2008-11-21T16:08:17+00:00</updated>
<author>
<name>John W. Linville</name>
<email>linville@tuxdriver.com</email>
</author>
<published>2008-10-29T15:35:05+00:00</published>
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<id>urn:sha1:274bfb8dc5ffa16cb073801bebe76ab7f4e2e73d</id>
<content type='text'>
These bits are shared already between ipw2x00 and hostap, and could
probably be shared both more cleanly and with other drivers.  This
commit simply relocates the code to lib80211 and adjusts the drivers
appropriately.

Signed-off-by: John W. Linville &lt;linville@tuxdriver.com&gt;
</content>
</entry>
<entry>
<title>net: convert print_mac to %pM</title>
<updated>2008-10-28T00:06:18+00:00</updated>
<author>
<name>Johannes Berg</name>
<email>johannes@sipsolutions.net</email>
</author>
<published>2008-10-27T22:59:26+00:00</published>
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<id>urn:sha1:e174961ca1a0b28f7abf0be47973ad57cb74e5f0</id>
<content type='text'>
This converts pretty much everything to print_mac. There were
a few things that had conflicts which I have just dropped for
now, no harm done.

I've built an allyesconfig with this and looked at the files
that weren't built very carefully, but it's a huge patch.

Signed-off-by: Johannes Berg &lt;johannes@sipsolutions.net&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
</entry>
<entry>
<title>[NET]: Undo code bloat in hot paths due to print_mac().</title>
<updated>2008-04-08T23:50:44+00:00</updated>
<author>
<name>David S. Miller</name>
<email>davem@davemloft.net</email>
</author>
<published>2008-04-08T23:50:44+00:00</published>
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<id>urn:sha1:21f644f3eabde637f255f75ad05d0821a7a36b7f</id>
<content type='text'>
If print_mac() is used inside of a pr_debug() the compiler
can't see that the call is redundant so still performs it
even of pr_debug() ends up being a nop.

So don't use print_mac() in such cases in hot code paths,
use MAC_FMT et al. instead.

As noted by Joe Perches, pr_debug() could be modified to
handle this better, but that is a change to an interface
used by the entire kernel and thus needs to be validated
carefully.  This here is thus the less risky fix for
2.6.25

Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
</entry>
<entry>
<title>[NET]: Introduce and use print_mac() and DECLARE_MAC_BUF()</title>
<updated>2007-10-10T23:51:42+00:00</updated>
<author>
<name>Joe Perches</name>
<email>joe@perches.com</email>
</author>
<published>2007-10-04T00:59:30+00:00</published>
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<id>urn:sha1:0795af5729b18218767fab27c44b1384f72dc9ad</id>
<content type='text'>
This is nicer than the MAC_FMT stuff.

Signed-off-by: Joe Perches &lt;joe@perches.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</content>
</entry>
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