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path: root/drivers/net/wireless/mwifiex/cfg80211.c
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* mwifiex: Fixing NULL pointer dereferenceYogesh Ashok Powar2011-06-151-0/+2
| | | | | | | | | | | | | | | | | | Following OOPS was seen when booting with card inserted BUG: unable to handle kernel NULL pointer dereference at 0000004c IP: [<f8b7718c>] cfg80211_get_drvinfo+0x21/0x115 [cfg80211] *pde = 00000000 Oops: 0000 [#1] SMP Modules linked in: iwl3945 iwl_legacy mwifiex_sdio mac80211 11 sdhci_pci sdhci pl2303 'ethtool' on the mwifiex device returned this OOPS as wiphy_dev() returned NULL. Adding missing set_wiphy_dev() call to fix the problem. Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mwifiex: cleanup ioctl.hBing Zhao2011-05-111-7/+2
| | | | | | | | | Some structures and macros in ioctl.h are redundant or no longer used. Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mwifiex: fix null derefs, mem leaks and triviaChristoph Fritz2011-05-101-1/+4
| | | | | | | | | | | | | | This patch: - adds kfree() where necessary - prevents potential null dereferences - makes use of kfree_skb() - replaces -1 for failed kzallocs with -ENOMEM Signed-off-by: Christoph Fritz <chf.fritz@googlemail.com> Reviewed-by: Kiran Divekar <dkiran@marvell.com> Tested-by: Amitkumar Karwar <akarwar@marvell.com> Acked-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mwifiex: remove unnecessary variable initializationYogesh Ashok Powar2011-05-051-14/+9
| | | | | | | | | Skip initialization of local variables with some default values if the values are not going to be used further down the code path. Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mwifiex: fix simultaneous assoc and scan issueAmitkumar Karwar2011-05-051-4/+7
| | | | | | | | | | | | | | | | | | | | | When scan and assoc (infra/ibss) commands are simultaneously given in two terminals, association response is erroneously served while serving the scan response. mwifiex_cfg80211_results() is the common routine for sending ioctl (scan, assoc etc.) results to cfg80211 stack. In above scenario even if the common routine is called for scan ioctl context, it also tries to send information about assoc ioctl to cfg80211 because "priv->assoc_request/priv->ibss_join_request" flag is on at that time. Fix the issue by updating request variable after assoc handling and modifying the variable check in mwifiex_cfg80211_results. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Kiran Divekar <dkiran@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mwifiex: HT capability information handlingAmitkumar Karwar2011-04-281-7/+35
| | | | | | | | | | | | | 1) Initialise HT capabilities in cfg80211 properly. 2) Cfg80211 stack may modify "sband->ht_cap" to disable 40Mhz operation in 2.4GHz band (after recent patch "cfg80211: module_param to disable HT40 in 2.4GHz band") Therefore read "sband->ht_cap" instead of an adapter variable "hw_dot_11n_dev_cap" to get HT capabilities. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mwifiex: check firmware capabilities while initialising 5GHz band parametersAmitkumar Karwar2011-04-281-8/+11
| | | | | | | | | | There are some SD8787 cards which don't support 5GHz band. Therefore initialise 5GHz band parameters only if hardware supports the band. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mwifiex: remove redundant local variables and commentsYogesh Ashok Powar2011-04-191-86/+45
| | | | | | | | | | | Remove some local variables (mainly function return values) that are used only once. Also, one dummy function and some wordy comments are removed. Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Kiran Divekar <dkiran@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mwifiex: remove redundant "return" at end of void functionYogesh Ashok Powar2011-04-141-2/+0
| | | | | | | | | The return statement at the last line of a void function is not necessary. Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mwifiex: cleanup ioctl wait queue and abstraction layerAmitkumar Karwar2011-04-141-68/+45
| | | | | | | | | | | | | | | | 1) remove mwifiex_alloc_fill_wait_queue() and mwifiex_request_ioctl() 2) avoid dynamic allocation of wait queue 3) remove unnecessary mwifiex_error_code macros that were used mainly by the wait queue status code 4) remove some abstraction functions 5) split mwifiex_prepare_cmd() to mwifiex_send_cmd_async() and mwifiex_send_sync() to handle asynchronous and synchronous commands respectively Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mwifiex: remove redundant encryption_mode mappingYogesh Ashok Powar2011-04-071-66/+10
| | | | | | | | | remove MWIFIEX_ENCRYPTION_MODE_ and use WLAN_CIPHER_SUITE_ macros directly Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mwifiex: return success in set_default_key for WPA/WPA2Amitkumar Karwar2011-04-071-0/+4
| | | | | | | | | | | | | | | | | | | | | | When testing wpa_supplicant with 'nl80211' driver to connect to an AP with WPA/WPA2 security, we notice the followings: 1) add_key is called firstly with the key from cfg80211 2) set_defaut_key is called next set_default_key() is specific to WEP keys and should not be called in case of WPA/WPA2 security. The set_default_key() won't be called if wpa_supplicant uses "-Dwext" option, but it's been called if "-Dnl80211" option is specified. We can fix this issue by adding a check to return from set_default_key() if WEP key is not configured. Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Marc Yang <yangyang@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mwifiex: remove MWIFIEX_AUTH_MODE_ macrosMarc Yang2011-04-041-4/+4
| | | | | | | | replace them with NL80211_AUTHTYPE_ macros Signed-off-by: Marc Yang <yangyang@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mwifiex: remove MWIFIEX_BSS_MODE_ macrosBing Zhao2011-04-041-46/+39
| | | | | | | | | | | replace them with NL80211_IFTYPE_ macros Also remove redundant functions mwifiex_drv_get_mode() and mwifiex_bss_ioctl_mode(). Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mwifiex: use IEEE80211_HT_CAP_ macros for 11n cap_infoMarc Yang2011-04-041-2/+1
| | | | | | | | | | | | | | | | | | | | | The hw_dot_11n_dev_cap reported by firmware hw_spec has different format than the 11n capabilities. Hence a lot of SET_ and RESET_ bit operation macros were used to convert the dev_cap format to 11n capability format. However the locally defined 11n ht_cap macros are not necessary as we can use IEEE80211_HT_CAP_ macros directly. The 32-bit dev_cap bitmap is added as comment to explain the mapping between firmware and 11n spec. Some unused macros and unnecessary adapter variables are also removed. Signed-off-by: Marc Yang <yangyang@marvell.com> Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* mwifiex: remove unnecessary _set_auth functionsMarc Yang2011-04-041-9/+8
| | | | | | | | | | | | | | mwifiex_set_encrypt_mode() mwifiex_set_auth_mode() mwifiex_set_auth() These functions are confusing and misleading. And they are really not needed at all. Some unused definitions are also removed. Signed-off-by: Marc Yang <yangyang@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* wireless: mwifiex: initial commit for Marvell mwifiex driverBing Zhao2011-03-301-0/+1517
This driver adds WiFi support for Marvell 802.11n based chipsets with SDIO interface. Currently only SD8787 is supported. More chipsets will be supported later. drivers/net/wireless/mwifiex/ Signed-off-by: Nishant Sarmukadam <nishants@marvell.com> Signed-off-by: Amitkumar Karwar <akarwar@marvell.com> Signed-off-by: Kiran Divekar <dkiran@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: Yogesh Ashok Powar <yogeshp@marvell.com> Signed-off-by: Marc Yang <yangyang@marvell.com> Signed-off-by: Ramesh Radhakrishnan <rramesh@marvell.com> Signed-off-by: Frank Huang <frankh@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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