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All file_operations should get a .llseek operation so we can make
nonseekable_open the default for future file operations without a
.llseek pointer.
The three cases that we can automatically detect are no_llseek, seq_lseek
and default_llseek. For cases where we can we can automatically prove that
the file offset is always ignored, we use noop_llseek, which maintains
the current behavior of not returning an error from a seek.
New drivers should normally not use noop_llseek but instead use no_llseek
and call nonseekable_open at open time. Existing drivers can be converted
to do the same when the maintainer knows for certain that no user code
relies on calling seek on the device file.
The generated code is often incorrectly indented and right now contains
comments that clarify for each added line why a specific variant was
chosen. In the version that gets submitted upstream, the comments will
be gone and I will manually fix the indentation, because there does not
seem to be a way to do that using coccinelle.
Some amount of new code is currently sitting in linux-next that should get
the same modifications, which I will do at the end of the merge window.
Many thanks to Julia Lawall for helping me learn to write a semantic
patch that does all this.
===== begin semantic patch =====
// This adds an llseek= method to all file operations,
// as a preparation for making no_llseek the default.
//
// The rules are
// - use no_llseek explicitly if we do nonseekable_open
// - use seq_lseek for sequential files
// - use default_llseek if we know we access f_pos
// - use noop_llseek if we know we don't access f_pos,
// but we still want to allow users to call lseek
//
@ open1 exists @
identifier nested_open;
@@
nested_open(...)
{
<+...
nonseekable_open(...)
...+>
}
@ open exists@
identifier open_f;
identifier i, f;
identifier open1.nested_open;
@@
int open_f(struct inode *i, struct file *f)
{
<+...
(
nonseekable_open(...)
|
nested_open(...)
)
...+>
}
@ read disable optional_qualifier exists @
identifier read_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
expression E;
identifier func;
@@
ssize_t read_f(struct file *f, char *p, size_t s, loff_t *off)
{
<+...
(
*off = E
|
*off += E
|
func(..., off, ...)
|
E = *off
)
...+>
}
@ read_no_fpos disable optional_qualifier exists @
identifier read_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
@@
ssize_t read_f(struct file *f, char *p, size_t s, loff_t *off)
{
... when != off
}
@ write @
identifier write_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
expression E;
identifier func;
@@
ssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off)
{
<+...
(
*off = E
|
*off += E
|
func(..., off, ...)
|
E = *off
)
...+>
}
@ write_no_fpos @
identifier write_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
@@
ssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off)
{
... when != off
}
@ fops0 @
identifier fops;
@@
struct file_operations fops = {
...
};
@ has_llseek depends on fops0 @
identifier fops0.fops;
identifier llseek_f;
@@
struct file_operations fops = {
...
.llseek = llseek_f,
...
};
@ has_read depends on fops0 @
identifier fops0.fops;
identifier read_f;
@@
struct file_operations fops = {
...
.read = read_f,
...
};
@ has_write depends on fops0 @
identifier fops0.fops;
identifier write_f;
@@
struct file_operations fops = {
...
.write = write_f,
...
};
@ has_open depends on fops0 @
identifier fops0.fops;
identifier open_f;
@@
struct file_operations fops = {
...
.open = open_f,
...
};
// use no_llseek if we call nonseekable_open
////////////////////////////////////////////
@ nonseekable1 depends on !has_llseek && has_open @
identifier fops0.fops;
identifier nso ~= "nonseekable_open";
@@
struct file_operations fops = {
... .open = nso, ...
+.llseek = no_llseek, /* nonseekable */
};
@ nonseekable2 depends on !has_llseek @
identifier fops0.fops;
identifier open.open_f;
@@
struct file_operations fops = {
... .open = open_f, ...
+.llseek = no_llseek, /* open uses nonseekable */
};
// use seq_lseek for sequential files
/////////////////////////////////////
@ seq depends on !has_llseek @
identifier fops0.fops;
identifier sr ~= "seq_read";
@@
struct file_operations fops = {
... .read = sr, ...
+.llseek = seq_lseek, /* we have seq_read */
};
// use default_llseek if there is a readdir
///////////////////////////////////////////
@ fops1 depends on !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier readdir_e;
@@
// any other fop is used that changes pos
struct file_operations fops = {
... .readdir = readdir_e, ...
+.llseek = default_llseek, /* readdir is present */
};
// use default_llseek if at least one of read/write touches f_pos
/////////////////////////////////////////////////////////////////
@ fops2 depends on !fops1 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read.read_f;
@@
// read fops use offset
struct file_operations fops = {
... .read = read_f, ...
+.llseek = default_llseek, /* read accesses f_pos */
};
@ fops3 depends on !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier write.write_f;
@@
// write fops use offset
struct file_operations fops = {
... .write = write_f, ...
+ .llseek = default_llseek, /* write accesses f_pos */
};
// Use noop_llseek if neither read nor write accesses f_pos
///////////////////////////////////////////////////////////
@ fops4 depends on !fops1 && !fops2 && !fops3 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read_no_fpos.read_f;
identifier write_no_fpos.write_f;
@@
// write fops use offset
struct file_operations fops = {
...
.write = write_f,
.read = read_f,
...
+.llseek = noop_llseek, /* read and write both use no f_pos */
};
@ depends on has_write && !has_read && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier write_no_fpos.write_f;
@@
struct file_operations fops = {
... .write = write_f, ...
+.llseek = noop_llseek, /* write uses no f_pos */
};
@ depends on has_read && !has_write && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read_no_fpos.read_f;
@@
struct file_operations fops = {
... .read = read_f, ...
+.llseek = noop_llseek, /* read uses no f_pos */
};
@ depends on !has_read && !has_write && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
@@
struct file_operations fops = {
...
+.llseek = noop_llseek, /* no read or write fn */
};
===== End semantic patch =====
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Julia Lawall <julia@diku.dk>
Cc: Christoph Hellwig <hch@infradead.org>
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The default llseek operation is changing from
default_llseek to no_llseek, so all code relying on
the current behaviour needs to make that explicit.
The wireless driver infrastructure and some of the drivers
make use of generated debugfs files, so they cannot
be converted by our script that automatically determines
the right operation.
All these files use debugfs and they typically rely
on simple_read_from_buffer, so the best llseek operation
here is generic_file_llseek.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: "John W. Linville" <linville@tuxdriver.com>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
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Use appropriate command (CMD_TRIGGER_SCAN_TO) instead of scan command
(CMD_SCAN) to configure trigger scan timeout.
This was broken in commit 3a98c30f3e8bb1f32b5bcb74a39647b3670de275.
This fix address the bug reported here:
https://bugzilla.kernel.org/show_bug.cgi?id=16554
Cc: stable@kernel.org
Signed-off-by: Yuri Ershov <ext-yuri.ershov@nokia.com>
Signed-off-by: Yuri Kululin <ext-yuri.kululin@nokia.com>
Acked-by: Kalle Valo <kvalo@adurom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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wl1271_dump() uses cmd after kfree(cmd). Move kfree() just after
wl1271_dump().
Signed-off-by: Kulikov Vasiliy <segooon@gmail.com>
Acked-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This makes the information available through ethtool...
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Acked-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
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This makes the information available through ethtool...
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Acked-by: Kalle Valo <kvalo@adurom.com>
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Signed-off-by: John W. Linville <linville@tuxdriver.com>
Acked-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
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Signed-off-by: John W. Linville <linville@tuxdriver.com>
Acked-by: Kalle Valo <kvalo@adurom.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/holtmann/bluetooth-next-2.6
Conflicts:
drivers/net/wireless/iwlwifi/iwl-commands.h
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Use kmemdup when some other buffer is immediately copied into the
allocated region.
A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression from,to,size,flag;
statement S;
@@
- to = \(kmalloc\|kzalloc\)(size,flag);
+ to = kmemdup(from,size,flag);
if (to==NULL || ...) S
- memcpy(to, from, size);
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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CHECK drivers/net/wireless/wl12xx/wl1251_tx.c
drivers/net/wireless/wl12xx/wl1251_tx.c:118:32: warning: incorrect type in assignment (different base types)
drivers/net/wireless/wl12xx/wl1251_tx.c:118:32: expected unsigned short [unsigned] [usertype] frag_threshold
drivers/net/wireless/wl12xx/wl1251_tx.c:118:32: got restricted __le16 [usertype] <noident>
drivers/net/wireless/wl12xx/wl1251_tx.c:164:24: warning: incorrect type in assignment (different base types)
drivers/net/wireless/wl12xx/wl1251_tx.c:164:24: expected unsigned short [unsigned] [usertype] length
drivers/net/wireless/wl12xx/wl1251_tx.c:164:24: got restricted __le16 [usertype] <noident>
drivers/net/wireless/wl12xx/wl1251_tx.c:166:22: warning: incorrect type in assignment (different base types)
drivers/net/wireless/wl12xx/wl1251_tx.c:166:22: expected unsigned short [unsigned] [usertype] rate
drivers/net/wireless/wl12xx/wl1251_tx.c:166:22: got restricted __le16 [usertype] <noident>
drivers/net/wireless/wl12xx/wl1251_tx.c:167:29: warning: incorrect type in assignment (different base types)
drivers/net/wireless/wl12xx/wl1251_tx.c:167:29: expected unsigned int [unsigned] [usertype] expiry_time
drivers/net/wireless/wl12xx/wl1251_tx.c:167:29: got restricted __le32 [usertype] <noident>
drivers/net/wireless/wl12xx/wl1251_tx.c:200:43: warning: incorrect type in argument 1 (different base types)
drivers/net/wireless/wl12xx/wl1251_tx.c:200:43: expected restricted __le16 [usertype] fc
drivers/net/wireless/wl12xx/wl1251_tx.c:200:43: got unsigned short [unsigned] [assigned] [usertype] fc
CHECK drivers/net/wireless/wl12xx/wl1251_cmd.c
drivers/net/wireless/wl12xx/wl1251_cmd.c:428:39: warning: incorrect type in assignment (different base types)
drivers/net/wireless/wl12xx/wl1251_cmd.c:428:39: expected unsigned int [unsigned] [usertype] rx_config_options
drivers/net/wireless/wl12xx/wl1251_cmd.c:428:39: got restricted __le32 [usertype] <noident>
drivers/net/wireless/wl12xx/wl1251_cmd.c:429:39: warning: incorrect type in assignment (different base types)
drivers/net/wireless/wl12xx/wl1251_cmd.c:429:39: expected unsigned int [unsigned] [usertype] rx_filter_options
drivers/net/wireless/wl12xx/wl1251_cmd.c:429:39: got restricted __le32 [usertype] <noident>
drivers/net/wireless/wl12xx/wl1251_cmd.c:435:29: warning: incorrect type in assignment (different base types)
drivers/net/wireless/wl12xx/wl1251_cmd.c:435:29: expected unsigned short [unsigned] [usertype] tx_rate
drivers/net/wireless/wl12xx/wl1251_cmd.c:435:29: got restricted __le16 [usertype] <noident>
drivers/net/wireless/wl12xx/wl1251_cmd.c:439:47: warning: incorrect type in assignment (different base types)
drivers/net/wireless/wl12xx/wl1251_cmd.c:439:47: expected unsigned int [unsigned] [usertype] min_duration
drivers/net/wireless/wl12xx/wl1251_cmd.c:439:47: got restricted __le32 [usertype] <noident>
drivers/net/wireless/wl12xx/wl1251_cmd.c:441:47: warning: incorrect type in assignment (different base types)
drivers/net/wireless/wl12xx/wl1251_cmd.c:441:47: expected unsigned int [unsigned] [usertype] max_duration
drivers/net/wireless/wl12xx/wl1251_cmd.c:441:47: got restricted __le32 [usertype] <noident>
CHECK drivers/net/wireless/wl12xx/wl1251_boot.c
drivers/net/wireless/wl12xx/wl1251_boot.c:228:22: warning: symbol 'interrupt' shadows an earlier one
/home/linville/git/wireless-next-2.6/arch/x86/include/asm/hw_irq.h:132:13: originally declared here
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
Conflicts:
drivers/net/wireless/wl12xx/wl1271_cmd.h
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This patch changes __attribute__ ((packed)) annotations to __packed in wl1271
code that was introduced in a recent patch in wireless-testing.
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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We were always using the max transmit power when scanning. Now we use the
values passed to the driver by the mac80211 stack, so that we comply with
regulations.
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Reviewed-by: Saravanan Dhanabal <ext-saravanan.dhanabal@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This patch is a complete rewrite of the scanning code. It now includes a
state machine to scan all four possible sets of channels independently:
2.4GHz active, 2.4GHz passive, 5GHz active and 5GHz passive. The wl1271
firmware doesn't allow these sets to be mixed, so up to several scan commands
have to be issued. This patch also allows scanning more than 24 channels per
set, by breaking the sets into smaller parts if needed (the firmware can scan
a maximum of 24 channels at a time).
Previously, the scanning code was erroneously scanning all channels possible
actively, not complying with the CRDA values. This is also fixed with this
patch.
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Reviewed-by: Saravanan Dhanabal <ext-saravanan.dhanabal@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The scanning code is going to get a bit more complex, with proper support for
active/passive scans together with 2.4GHz and 5GHz. In the future, also a
new type of scan (periodic scan) will be added. When all this is
implemented, the code is going to be much more complex, so we'd better
separate it into a separate file.
This patch doesn't have any impact on functionality.
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Reviewed-by: Saravanan Dhanabal <ext-saravanan.dhanabal@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The mac80211 interface to temporarily disable dynamic PS changed, make
corresponding changes to the driver.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Saravanan Dhanabal <ext-saravanan.dhanabal@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This patch requests mac80211 to disable dynamic PSM based on sense events
coming from the firmware. Effectively, whenever there is bluetooth traffic,
the mac80211 is forced into full PSM mode.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The interface for hardware ARP configuration changed in the mac80211. Change
driver accordingly.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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We should read the fem manufacturer value from the NVS, so we can modify it
easily and use a consistent value throughout the configuration. Previously
we had to set the FEM value in the NVS and in the driver's initialization
parameters. This patch removes the latter.
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Some AP's (such as Zyxel Prestige 600) have totally broken ps-poll
functionality. When powersave is enabled, these AP's will set the TIM bit for
a STA in beacons, but when the STA responds with a ps-poll, the AP does not
respond with data.
The wl1271 firmware is able to send an indication to the host, when this
problem occurs. This patch adds implementation, which temporarily disables
power-save in response to this indication, allowing the AP to transmit whatever
data it has buffered for the STA / whatever data is inbound at that time.
This patch does not make these AP's work reliably in PSM, but improves the
chances of inbound data getting through.
The side effect of this patch is increased power consumption when using a
faulty AP.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This improves ps-poll handling in WLAN PSM. It also improves performance,
including WLAN-BT co-existence reliability.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This patch updates the driver to use the ARP configuration function from the
mac80211. Also, clean up IPv6 support from the ACX function as ARP is not
used with that protocol version.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Add functionality to pass the current TSF (mac time) to the mac80211. This is
needed for ad-hoc merging.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This patch removes the calibration performed on the first join command. The
reasoning is that this is unnecessary as devices get their calibration data
via the NVS file, and because the commands break BT coexistence.
This is actually safe, because of the implementation the calibration
was executed on the first JOIN anyway, after an ifdown/ifup the devices have
relied on the NVS for calibration anyway (== most of the time.)
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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(Changed title, was "wl1251: Use MODULE_ALIAS macro at correct postion
for SPI bus". -- JWL)
Signed-off-by: Ameya Palande <ameya.palande@nokia.com>
Acked-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
Conflicts:
drivers/net/wireless/wl12xx/wl1271.h
drivers/net/wireless/wl12xx/wl1271_cmd.h
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Reading the ELP_CTRL register with sdio_readb causes problems because
hardware seems to be performing a write using stuff bits in the request
(those bits contain write data in write request). This indicates that it
actually expects RAW (read after write) type of request, so perform that
when reading ELP_CTRL instead. Also cache last written value so we know
what to write when doing RAW request.
Because of the above it was not possible to wake the chip from ELP power
saving mode, PM had to be disabled to have the driver usable in SDIO
mode. After this patch PM is functional.
For backporting to 2.6.34 or earlier, this patch depends on
6c1f716e8154ee9315534782b9b1eedea0559a24, which adds the
required SDIO funcion.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Acked-by: Kalle Valo <kvalo@adurom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
Conflicts:
drivers/net/wireless/iwlwifi/iwl-core.h
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wl1251_sdio_probe() error path is missing wl1251_free_hw, add it.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Acked-by: Kalle Valo <kvalo@adurom.com>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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cleanup patch.
Use new __packed annotation in drivers/net/
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The 5GHz bands were scanned without the proper IE's in place, preventing
proper 5GHz scanning. This patches fixes the problem by storing a pointer
to the scan request (with the IE's) for all iterations of scan.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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A fixed 1 mbps rate was used for the PSM entry/exit null-func frames. Fix this
by using the basic rates instead.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The core wl1271 module can also be used with SDIO, so it should not depend on
SPI_MASTER.
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Reviewed-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The mac80211 changes to idle almost immediately after transmitting some
frames, such as deauth etc. When going to idle, the wl1271 is disconnected,
which causes TX frames already on buffers, but not yet transmitted, to be
deleted.
To make sure deauth frames reach the air, allow the TX buffers to flush
before proceeding to idle.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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As there is more and more stuff triggered by going in and out of idle,
create a separate function for handling that.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The wl1271 uses a session counter in CMD_JOIN and TX frame descriptors. This
counter is used to determine which frames to drop when the CMD_JOIN is
executed.
The driver executes CMD_JOIN multiple times upon association and sometimes
disassociation, and we don't want any frames to get lost.
Fix this by incrementing the session counter only when leaving idle (not every
CMD_JOIN as before.) Also, remove the TX flush flag from the CMD_JOIN options.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Teemu Paasikivi <ext-teemu.3.paasikivi@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The C99 specification states in section 6.11.5:
The placement of a storage-class specifier other than at the beginning
of the declaration specifiers in a declaration is an obsolescent
feature.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Acked-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Use kmemdup when some other buffer is immediately copied into the
allocated region.
A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression from,to,size,flag;
statement S;
@@
- to = \(kmalloc\|kzalloc\)(size,flag);
+ to = kmemdup(from,size,flag);
if (to==NULL || ...) S
- memcpy(to, from, size);
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Acked-by: Kalle Valo <kvalo@adurom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This patch adds support for NVS files with 5GHz band parameters. The change
is done in a backward compatible manner - if 11a is not enabled in the driver,
the driver will allow also old NVS files to be loaded.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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This patch updates the handling of the NVS file INI-section, trying to make
it slightly more generic, and exposing the parameters being set. This is done
in preparation for 5GHz parameters.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Make it possible to use wl1271's SDIO interface on non-ARM platforms.
Fully tested on a x86 platform, compile-tested on ARM.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The current frame length used by the driver for RX frames is the SPI bus
transfer length. This length has padding bytes, which do not belong to the
WLAN frame.
As there is no other length information in the WLAN frame except the skb
length this problem caused for instance extra ESSID's to be listed at the
end of scan results (IE id 0) with zero length.
Fix the frame length by removing padding.
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem
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This patch removes from drivers/net/ all the unnecessary
return; statements that precede the last closing brace of
void functions.
It does not remove the returns that are immediately
preceded by a label as gcc doesn't like that.
It also does not remove null void functions with return.
Done via:
$ grep -rP --include=*.[ch] -l "return;\n}" net/ | \
xargs perl -i -e 'local $/ ; while (<>) { s/\n[ \t\n]+return;\n}/\n}/g; print; }'
with some cleanups by hand.
Compile tested x86 allmodconfig only.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The goto and the break are equivelent. I removed the goto in memory of
Edsger Dijkstra who famously hated gotos and who would have been eighty
years old next Tuesday.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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The "(wl == NULL)" test doesn't work here because "wl" is always
non-null. The intent of the code is to return if the interface
was not supported by the driver.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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We should start the loop consistently with the "wl_lock" lock held.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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