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path: root/drivers/staging/rtl8712/rtl871x_mlme.c
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2015-08-08staging: rtl8712: remove duplicate structJoshua Clayton1-12/+11
struct ndis_wlan_bssid_ex is a doppelganger of struct wlan_bssid_ex, and is used about a third as often. Switch all instances to wlan_bssid_ex, and remove ndis_wlan_bssid_ex This also gets rid of a use of typedef NDIS_802_11_RATES_EX Signed-off-by: Joshua Clayton <stillcompiling@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-08-08staging: rtl8712: fix buggy size calculationJoshua Clayton1-11/+1
r8712_get_ndis_wlan_bssid_ex_sz has a "6 * sizeof(unsigned long)" where the underlying struct has a 6 * unsigned char. Simplify the calculation by just subtracting the variable part from the size of the struct. This also gets rid of a use of typedef NDIS_802_11_RATES_EX Signed-off-by: Joshua Clayton <stillcompiling@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-05-31staging: rtl8712: fix stack dumpSudip Mukherjee1-3/+3
del_timer_sync() is not to be called in the interrupt context unless the timer is irqsafe. but most of the functions where commits 6501c8e7d86cca5f and 382d020f4459cd77 touched were called in interrupt context. And as a result the WARN_ON was getting triggered. Changed to del_timer() in places which were called from interrupt. Fixes: 382d020f4459cd77 ("Staging: rtl8712: Eliminate use of _cancel_timer" Fixes: 6501c8e7d86cca5f ("Staging: rtl8712: Eliminate use of _cancel_timer_ex") Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=97711 Reported-by: Arek Rusniak <arek.rusi@gmail.com> Tested-by: Arek Rusniak <arek.rusi@gmail.com> Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-16Staging: rtl8712: fix potential null pointer dereferenceMatteo Semenzato1-0/+2
Check if kmalloc succeded before using the pointer in memcpy. Signed-off-by: Matteo Semenzato <mattew8898@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-16Staging: rtl8712: remove else after return statementHaneen Mohammed1-11/+9
else after return generally is not useful. This patch removes else after return statement. Issue addressed by checkpatch.pl. Signed-off-by: Haneen Mohammed <hamohammed.sa@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-16Staging: rtl8712: Eliminate use of _cancel_timerVaishali Thakkar1-6/+2
Use timer API function del_timer_sync instead of driver specific function _cancel_timer as besides deactivating a timer, it also ensures that the timer is stopped on all CPUs before the driver exists. Also, variables timer_cancelled and bool are removed as they are no longer needed. @a@ expression x; identifier y; @@ - _cancel_timer (&x, &y); + del_timer_sync (&x); @@type T; identifier a.y;@@ - T y; ...when != y Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-16Staging: rtl8712: Eliminate use of _cancel_timer_exVaishali Thakkar1-1/+1
Use timer API function del_timer_sync instead of driver specific function _cancel_timer_ex as besides deactivating a timer, it ensures that the timer is stopped on all CPUs before the driver exists. Also, definition of function _cancel_timer_ex is removed as it is no longer needed after this change. This is done using Coccinelle and semantic patch used for this is as follows: @@ expression x; @@ - _cancel_timer_ex (&x); + del_timer_sync (&x); Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-02Staging: rtl8712: Eliminate use of _set_timerVaishali Thakkar1-6/+8
This patch introduces the use of API function mod_timer instead of driver specific function _set_timer as it is a more efficient and standard way to update the expire field of an active timer. Also, definition of function _set_timer is removed as it is no longer needed after this change. Here, these cases are handled using Coccinelle and semantic patch used for this is as follows: @@ expression x; expression y;@@ - _set_timer (&x, y); + mod_timer (&x, jiffies + msecs_to_jiffies (y)); Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-01-18staging: rtl8712: remove spaces before commasMax Perepelitsyn1-2/+2
checkpatch.pl fix for ERROR: space prohibited before that ',' (ctx:WxE) Signed-off-by: Max Perepelitsyn <mperepelitsyn@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-10-29staging: rtl8712: remove unused variablesSudip Mukherjee1-16/+7
unused variables are removed. These variables were only assigned some values and after that they were never being used. So they are safe to be removed , and it has been build tested. I left a call to r8712_read32(padapter, TCR) and r8712_read8(padapter, SDIO_HCPWM) . r8712_read32() and r8712_read8() is ultimately calling usb_read32() and usb_read8() respectively. and they are again calling r8712_usbctrl_vendorreq(). this r8712_usbctrl_vendorreq() is communicating through the usb bus and is sending and receiving the control msg. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-10-20staging: rtl8712: Remove unnecessary cast for argument of kfreeTapasweni Pathak1-2/+2
This patch removes all occurrences of unnecessary cast on the argument to kfree, all over in rtl8712. There is no need of the cast on the argument to kfree. Greped to find occurrences. Signed-off-by: Tapasweni Pathak <tapaswenipathak@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-09-23Staging: rtl8712: Remove unnecessary parenthesesTapasweni Pathak1-1/+1
This patch fixes checkpatch.pl warning in files of rel8712 WARNING : Unnecessary parentheses - maybe == should be = ? Signed-off-by: Tapasweni Pathak <tapaswenipathak@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-27staging: rtl8712: remove wrapper function _queue_emptyJames A Shackleford1-2/+2
_queue_empty is an inline wrapper around list_empty. This patch removes this wrapper function and instead calls list_empty directly. Signed-off-by: James A Shackleford <shack@linux.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-27staging: rtl8712: remove function get_list_headJames A Shackleford1-6/+6
get_list_head is an inline that returns &list->head. This patch removes this inline and directly applies &list->head where applicable. Signed-off-by: James A Shackleford <shack@linux.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-27staging: rtl8712: remove wrapper function get_nextJames A Shackleford1-11/+11
get_next is just an inline wrapper around return list->next. This patch removes the wrapper and directly uses list->next where applicable. Signed-off-by: James A Shackleford <shack@linux.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-27staging: rtl8712: remove wrapper function list_deleteJames A Shackleford1-3/+3
list_delete is just an inline wrapper around list_del_init. This patch removes the wrapper and directly uses list_del_init. Signed-off-by: James A Shackleford <shack@linux.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-27staging: rtl8712: remove wrapper function list_insert_tailJames A Shackleford1-4/+4
list_insert_tail is just an inline wrapper around list_add_tail. This patch removes the wrapper and directly uses list_add_tail. Signed-off-by: James A Shackleford <shack@linux.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-27staging: rtl8712: remove wrapper function _init_listheadJames A Shackleford1-3/+3
_init_listhead is just an inline wrapper around INIT_LIST_HEAD. This patch removes the wrapper and directly uses INIT_LIST_HEAD instead. Signed-off-by: James A Shackleford <shack@linux.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-20staging: rtl8712: replace kmalloc(..., sizeof(T))Vitaly Osipov1-4/+4
As suggested by Andy Shevchenko on driverdev-devel, replace v = ... sizeof(struct type_of_v) -> sizeof(*v) Based on a cocci patch along the lines of @@ type T; expression E; identifier V; @@ T *V; ... - V = kmalloc(sizeof(T), E); + V = kmalloc(sizeof(*V), E); @@ type T; expression E; identifier V; @@ T *V; ... - V = kzalloc(sizeof(T), E); + V = kzalloc(sizeof(*V), E); Signed-off-by: Vitaly Osipov <vitaly.osipov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-25staging: rtl8712: remove _malloc()Vitaly Osipov1-10/+7
This patch removes all usage of _malloc() and the function itself. Most uses are straightforward replacements by kmalloc(..., GFP_ATOMIC), because this was the definition of _malloc(). In a few places it was possible to use kzalloc() or memdup_user. A further improvement would be to replace GFP_ATOMIC with GFP_KERNEL where possible. Verified by compilation only. Initial replacement done by running a Coccinelle script along the lines of: @@ type T; expression E; identifier V; @@ - V = (T) _malloc(E); + V = kmalloc(E, GFP_ATOMIC); @@ expression E, E1; @@ - E1 = _malloc(E); + E1 = kmalloc(E, GFP_ATOMIC); Signed-off-by: Vitaly Osipov <vitaly.osipov@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-23staging: r8712u: Remove useless return variablesPeter Senna Tschudin1-2/+1
This patch remove variables that are initialized with a constant, are never updated, and are only used as parameter of return. Return the constant instead of using a variable. Verified by compilation only. The coccinelle script that find and fixes this issue is: // <smpl> @@ type T; constant C; identifier ret; @@ - T ret = C; ... when != ret - return ret; + return C; // </smpl> Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-05-23staging: rtl8712: fix potential leaks in r8712_set_key()Christian Engelmayer1-8/+20
Fix potential leaks in the error paths of r8712_set_key(). In case the algorithm specific checks fail, the function returns without enqueuing or freeing the already allocated command and parameter structs. Use a centralized exit path and make sure that all memory is freed correctly. Detected by Coverity - CID 144370, 144371. Signed-off-by: Christian Engelmayer <cengelma@gmx.at> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-11-25staging r8712u: Remove useless netdev_info slowly polluting dmesgAlexandre Demers1-3/+0
Remove useless netdev_info slowly flooding dmesg. Fixes bug https://bugzilla.kernel.org/show_bug.cgi?id=64231 Signed-off-by: Alexandre Demers <alexandre.f.demers@gmail.com> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-10-04Staging: rtl8712: fix spaces before semicolonsThomas Cort1-2/+2
Resolve all of the 'WARNING: space prohibited before semicolon' checkpatch warnings for rtl8712. Signed-off-by: Thomas Cort <linuxgeek@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-12rtl8712: replace printk with better solutionsPrzemo Firszt1-2/+2
Replace printk with netdev_printk helpers, dev_printk helpers or pr_err/warn/info if there is no device info available. Signed-off-by: Przemo Firszt <przemo@firszt.eu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-12rtl8712: remove useless calls to memset().Cyril Roelandt1-5/+0
These calls are followed by calls to memcpy() on the same memory area, so they can be safely removed. Signed-off-by: Cyril Roelandt <tipecaml@gmail.com> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-09-05staging: r8712u: rtl871x_mlme.c: use is_zero_ether_addr() instead of memcmp()Wei Yongjun1-2/+3
Using is_zero_ether_addr() instead of directly use memcmp() to determine if the ethernet address is all zeros. spatch with a semantic match is used to found this problem. (http://coccinelle.lip6.fr/) Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-10staging: rtl8712: Fix typos.Justin P. Mattock1-4/+4
Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Acked-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2011-11-27drivers/staging/rtl8712/rtl871x_mlme.c: eliminate a null pointer dereferenceJulia Lawall1-1/+1
If ibss_wlan is NULL, it is not correct to memcpy into its field. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r@ expression E, E1; identifier f; statement S1,S2,S3; @@ if (E == NULL) { ... when != if (E == NULL || ...) S1 else S2 when != E = E1 *E->f ... when any return ...; } else S3 // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-10-11staging: r8712u: Fix possible out-of-bounds index with TKIP and AES keysLarry Finger1-0/+4
Array XGrpKey has only 2 elements and uses (keyid - 1) as the index, which allows the possibility of memory corruption from an out-of-bounds index. This problem was reported by a new version of smatch. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-09-07staging: r8712u: Merging Realtek's latest (v2.6.6). Various fixes.Ali Bahar1-42/+16
In r8712_generate_ie(), HT check is no longer done. Removed r8712_add_ht_addt_info(). Changes to defragmentation handling, and queue selection. Get TSSI command. Added an Ad-Hoc check to is_desired_network() r8712_ind_disconnect() now checks for Linked state. r8712_xmit_bh() now schedules an xmit tasklet. Signed-off-by: Ali Bahar <ali@internetDog.org> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-03-31Fix common misspellingsLucas De Marchi1-3/+3
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2010-08-31staging: r8712u: Fix potential crash issueLarry Finger1-10/+8
When the driver received the Addba request frame from AP, a crash could occur. Signed-off-by: Albert Wang <albert_wang@realtek.com.tw> Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-20staging: r8712u: Add the new driver to the mainline kernelLarry Finger1-0/+1842
This code is for a completely new version of the Realtek 8192 USB devices such as the D-Link DWA-130. The Realtek code, which was originally for Linux, Windows XP and Windows CE, has been stripped of all code not needed for Linux. In addition, only one additional configuration variable, which enables AP mode, remains. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Signed-off-by: Florian Schilhabel <florian.c.schilhabel@googlemail.com> Tested-by: Frederic Leroy <fredo@starox.org>