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path: root/drivers/net/wimax/i2400m/control.c
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* net: wimax: i2400m: control.c: Cleaning up conjunction always evaluates to falseRickard Strandqvist2014-06-111-1/+1
| | | | | | | | | | Logical conjunction always evaluates to false: minor < 2 && minor > 1 I guess what you wanted is rather: minor > 2 || minor < 1 This was partly found using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: David S. Miller <davem@davemloft.net>
* wimax: fix printk format warningsRandy Dunlap2012-07-221-2/+2
| | | | | | | | | | | | | | | | | | Fix printk format warnings in drivers/net/wimax/i2400m: drivers/net/wimax/i2400m/control.c: warning: format '%zu' expects argument of type 'size_t', but argument 4 has type 'ssize_t' [-Wformat] drivers/net/wimax/i2400m/control.c: warning: format '%zu' expects argument of type 'size_t', but argument 5 has type 'ssize_t' [-Wformat] drivers/net/wimax/i2400m/usb-fw.c: warning: format '%zu' expects argument of type 'size_t', but argument 4 has type 'ssize_t' [-Wformat] I don't see these warnings on x86. The warnings that are quoted above are from Geert's kernel build reports. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Reported-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com> Cc: linux-wimax@intel.com Cc: wimax@linuxwimax.org Signed-off-by: David S. Miller <davem@davemloft.net>
* drivers/net: Add moduleparam.h to drivers as required.Paul Gortmaker2011-10-311-0/+1
| | | | | | | | These files were using moduleparam infrastructure, but were not including anything for it -- which is fine when module.h is being implicitly included in all files, but that is going away. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* drivers/net: Add export.h to files using EXPORT_SYMBOL/THIS_MODULEPaul Gortmaker2011-10-311-0/+1
| | | | | | | | | | | | | | | 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 <paul.gortmaker@windriver.com> 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 <paul.gortmaker@windriver.com>
* Fix common misspellingsLucas De Marchi2011-03-311-2/+2
| | | | | | Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
* wimax: make functions localstephen hemminger2010-10-051-10/+8
| | | | | | | | | | | | Make wimax variables and functions local if possible. Compile tested only. This also removes a couple of unused EXPORT_SYMBOL. If this breaks some out of tree code, please fix that by putting the code in the kernel tree. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'for-next' of ↵Linus Torvalds2010-08-041-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (48 commits) Documentation: update broken web addresses. fix comment typo "choosed" -> "chosen" hostap:hostap_hw.c Fix typo in comment Fix spelling contorller -> controller in comments Kconfig.debug: FAIL_IO_TIMEOUT: typo Faul -> Fault fs/Kconfig: Fix typo Userpace -> Userspace Removing dead MACH_U300_BS26 drivers/infiniband: Remove unnecessary casts of private_data fs/ocfs2: Remove unnecessary casts of private_data libfc: use ARRAY_SIZE scsi: bfa: use ARRAY_SIZE drm: i915: use ARRAY_SIZE drm: drm_edid: use ARRAY_SIZE synclink: use ARRAY_SIZE block: cciss: use ARRAY_SIZE comment typo fixes: charater => character fix comment typos concerning "challenge" arm: plat-spear: fix typo in kerneldoc reiserfs: typo comment fix update email address ...
| * fix typos concerning "initiali[zs]e"Uwe Kleine-König2010-06-161-1/+1
| | | | | | | | | | Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | drivers/net: use __packed annotationEric Dumazet2010-06-031-1/+1
|/ | | | | | | | | 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>
* drivers/net: remove useless semicolonsJoe Perches2010-05-171-5/+5
| | | | | | | | | switch and while statements don't need semicolons at end of statement [ Fixup minor conflicts with recent wimax merge... -DaveM ] Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2010-05-151-0/+15
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/inaky/wimax
| * wimax/i2400m: Move module params to other file so they can be staticPrasanna S Panchamukhi2010-05-111-0/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch moves the module parameters to the file where they can be avoided to be global and allow them to be static. The module param : idle_mode_disabled and power_save_disabled are moved from driver.c to control.c. Also these module parameters are declared to be static as they are not required to be global anymore. The module param : rx_reorder_disabled is moved from driver.c file to rx.c file. Also this parameter is declated as static as it is not required to be global anymore. Signed-off-by: Prasanna S Panchamukhi<prasannax.s.panchamukhi@intel.com>
* | drivers/net: Remove unnecessary returns from void function()sJoe Perches2010-05-141-2/+0
|/ | | | | | | | | | | | | | | | | | | | | | 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>
* include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h 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 -> 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 <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* wimax/i2400m: introduce i2400m_reset(), stopping TX and carrierInaky Perez-Gonzalez2009-11-031-2/+2
| | | | | | | | | | | | | | | | | | Currently the i2400m driver was resetting by just calling i2400m->bus_reset(). However, this was missing stopping the TX queue and downing the carrier. This was causing, for the corner case of the driver reseting a device that refuses to go out of idle mode, that a few packets would be queued and more than one reset would go through, making the recovery a wee bit messy. To avoid introducing the same cleanup in all the bus-specific driver, introduced a i2400m_reset() function that takes care of house cleaning and then calling the bus-level reset implementation. The bulk of the changes in all files are just to rename the call from i2400m->bus_reset() to i2400m_reset(). Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
* wimax/i2400m: implement passive mode as a module optionInaky Perez-Gonzalez2009-11-031-0/+10
| | | | | | | | | Some versions of the user space Intel WiMAX daemon need to have full control over the device initialization sequence. By setting the module option i2400.passive_mode to 1, the driver defers all device configuration and initialization to user space. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
* i2400m: keep index within ms_to_errno[]Roel Kluin2009-10-191-1/+1
| | | | | | | Ensure that index `status' remains within ms_to_errno[] Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
* wimax/i2400m: use -EL3RST to indicate device reset instead of -ERESTARTSYSCindy H Kao2009-06-111-1/+1
| | | | | | | | | | | | | | | | | | | | When the i2400m device resets, the driver code will force some functions to return a -ERESTARTSYS error code, which can is used by the caller to determine which recovery actions to take. However, in certain situations the only thing that can be done is to bubble up said error code to user space, for handling. However, -ERESTARSYS was a poor choice, as it is supposed to be used by the kernel only. As such, replace -ERESTARTSYS with -EL3RST; as well, in i2400m_msg_to_dev(), when the device is in boot mode (following a recent reset), return -EL3RST instead of -ENODEV (meaning the device is in bootrom mode after a reset, not that the device was disconnected, and thus, normal commands cannot be executed). Signed-off-by: Cindy H Kao <cindy.h.kao@intel.com>
* wimax/i2400m: if a device reboot happens during probe, handle itInaky Perez-Gonzalez2009-06-111-0/+1
| | | | | | | | | | | When a device reboot happens when we are under probe, with init_mutex taken, make sure we can recover. Have dev_reset_handle set boot mode and i2400m_msg_to_dev() will see it and fail gracefully instead of timing out. Found and diagnosed by Cindy H. Kao. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
* wimax/i2400m: don't reset device on i2400m_dev_shutdown()Inaky Perez-Gonzalez2009-06-111-5/+5
| | | | | | | | | | | | | | | | | | | | | i2400m_dev_shutdown() tried to reset the device to put it in a known state before shutting down. But that turned out to be pointless. We reach this case in two paths: 1 - when the device resets, to clean up state 2 - when the driver is unloaded, for the same however, in both cases it is pointless; in (1) the device is already reset, why do it again? in (2) we can't -- the USB stack, for example, doesn't allow communicating with the device when the driver is being unbound and if the device is disconnected, the device is gone already. So just remove it. Leave the function as a placeholder for future cleanups that will be done from data allocated by the driver during device operation. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
* wimax/i2400m: introduce module parameter to disable entering power saveInaky Perez-Gonzalez2009-06-111-2/+9
| | | | | | | | | | | | | | | The i2400m driver waits for the device to report being ready for entering power save before asking it to do so. This module parameter allows control of said operation; if disabled, the driver won't ask the device to enter power save mode. This is useful in setups where power saving is not so important or when the overhead imposed by network reentry after power save is not acceptable; by combining this with parameter 'idle_mode_disabled', the driver will always maintain both the connection and the device in active state. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
* wimax/i2400m: remove redundant readiness checks from i2400m_report_tlv_*()Inaky Perez-Gonzalez2009-05-281-6/+0
| | | | | | | | | | | | | | | Functions i2400m_report_tlv*() are only called from i2400m_report_hook(), called in a workqueue by i2400m_report_hook_work(). The scheduler checks for device readiness before scheduling. Added an extra check for readiness in i2400m_report_hook_work(), which makes all the checks down the line redundant. Obviously the device state could change in the middle, but error handling would take care of that. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
* wimax/i2400m: factor out 'state report's TLV handling to a functionInaky Perez-Gonzalez2009-05-281-39/+50
| | | | | | | i2400m_report_state_hook() is going to get messier as we add handling code. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
* wimax/i2400m: allow kernel commands to device to be logged tooInaky Perez-Gonzalez2009-05-281-0/+5
| | | | | | | | | | | | | | By running 'echo 1 > /sys/kernel/debug/wimax:wmxX/i2400m/trace_msg_from_user', the driver will echo to user space all the commands being sent to the device from user space, along with the responses. However, this only helps with the commands being sent from user space; with this patch, the trace hook is moved to i2400m_msg_to_dev(), which is the single access point for running commands to the device (both by user space and the kernel driver). This allows better debugging by having a complete stream of commands/acks and reports. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
* wimax/i2400m: implement RX reorder supportInaky Perez-Gonzalez2009-03-021-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow the device to give the driver RX data with reorder information. When that is done, the device will indicate the driver if a packet has to be held in a (sorted) queue. It will also tell the driver when held packets have to be released to the OS. This is done to improve the WiMAX-protocol level retransmission support when missing frames are detected. The code docs provide details about the implementation. In general, this just hooks into the RX path in rx.c; if a packet with the reorder bit in the RX header is detected, the reorder information in the header is extracted and one of the four main reorder operations are executed. In one case (queue) no packet will be delivered to the networking stack, just queued, whereas in the others (reset, update_ws and queue_update_ws), queued packet might be delivered depending on the window start for the specific queue. The modifications to files other than rx.c are: - control.c: during device initialization, enable reordering support if the rx_reorder_disabled module parameter is not enabled - driver.c: expose a rx_reorder_disable module parameter and call i2400m_rx_setup/release() to initialize/shutdown RX reorder support. - i2400m.h: introduce members in 'struct i2400m' needed for implementing reorder support. - linux/i2400m.h: introduce TLVs, commands and constant definitions related to RX reorder Last but not least, the rx reorder code includes an small circular log where the last N reorder operations are recorded to be displayed in case of inconsistency. Otherwise diagnosing issues would be almost impossible. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* wimax/i2400m: support extended data RX protocol (no need to reallocate skbs)Inaky Perez-Gonzalez2009-03-021-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Newer i2400m firmwares (>= v1.4) extend the data RX protocol so that each packet has a 16 byte header. This header is mainly used to implement host reordeing (which is addressed in later commits). However, this header also allows us to overwrite it (once data has been extracted) with an Ethernet header and deliver to the networking stack without having to reallocate the skb (as it happened in fw <= v1.3) to make room for it. - control.c: indicate the device [dev_initialize()] that the driver wants to use the extended data RX protocol. Also involves adding the definition of the needed data types in include/linux/wimax/i2400m.h. - rx.c: handle the new payload type for the extended RX data protocol. Prepares the skb for delivery to netdev.c:i2400m_net_erx(). - netdev.c: Introduce i2400m_net_erx() that adds the fake ethernet address to a prepared skb and delivers it to the networking stack. - cleanup: in most instances in rx.c, the variable 'single' was renamed to 'single_last' for it better conveys its meaning. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* wimax/i2400m: allow control of the base-station idle mode timeoutInaky Perez-Gonzalez2009-03-021-8/+90
| | | | | | | | | | | | | | | | | | | | | | For power saving reasons, WiMAX links can be put in idle mode while connected after a certain time of the link not being used for tx or rx. In this mode, the device pages the base-station regularly and when data is ready to be transmitted, the link is revived. This patch allows the user to control the time the device has to be idle before it decides to go to idle mode from a sysfs interace. It also updates the initialization code to acknowledge the module variable 'idle_mode_disabled' when the firmware is a newer version (upcoming 1.4 vs 2.6.29's v1.3). The method for setting the idle mode timeout in the older firmwares is much more limited and can be only done at initialization time. Thus, the sysfs file will return -ENOSYS on older ones. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* wimax/i2400m: firmware_check() encodes the firmware version in ↵Inaky Perez-Gonzalez2009-03-021-5/+7
| | | | | | | | | | | | | | | | | | | i2400m->fw_version Upcoming modifications will need to test for the running firmware version before activating a feature or not. This is helpful to implement backward compatibility with older firmware versions. Modify i2400m_firmware_check() to encode in i2400m->fw_version the major and minor version numbers of the firmware interface. As well, move the call to be done as the very first operation once we have communication with the device during probe() [in __i2400m_dev_start()]. This is needed so any operation that is executed afterwards can determine which fw version it is talking to. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* wimax/i2400m: drop support for deprecated major fw interface, add for new minorInaky Perez-Gonzalez2009-03-021-9/+5
| | | | | | | | | | | | | | | Firmware interface version 8.x.x has long been deprecated and is no longer supported (nor available, as it is a preproduction firmware), so it can be safely dropped. Add support for firmware interface v9.2.x (current is 9.1.x). Firmware version 9.2.x is backwards compatible with 9.1.x; new features are enabled if switches are pressed to turn them on. Forthcoming commits to the driver will start pressing those switches when the firmware interface supports it. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* wimax/i2400m: error paths that need to free an skb should use kfree_skb()Inaky Perez-Gonzalez2009-01-191-1/+1
| | | | | | | | | | | | | | | | | | Roel Kluin reported a bug in two error paths where skbs were wrongly being freed using kfree(). He provided a fix where it was replaced to kfree_skb(), as it should be. However, in i2400mu_rx(), the error path was missing returning an indication of the failure. Changed to reset rx_skb to NULL and return it to the caller, i2400mu_rxd(). It will be treated as a transient error and just ignore the packet. Depending on the buffering conditions inside the device, the data packet might be dropped or the device will signal the host again for data-ready-to-read and the host will retry. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* i2400m: various functions for device managementInaky Perez-Gonzalez2009-01-071-0/+1291
This is a collection of functions used to control the device (plus a few helpers). There are utilities for handling TLV buffers, hooks on the device's reports to act on device changes of state [i2400m_report_hook()], on acks to commands [i2400m_msg_ack_hook()], a helper for sending commands to the device and blocking until a reply arrives [i2400m_msg_to_dev()], a few high level commands for manipulating the device state, powersaving mode and configuration plus the routines to setup the device once communication is established with it [i2400m_dev_initialize()]. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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