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path: root/drivers/net/wireless/microchip/wilc1000/mon.c
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2022-09-02wifi: move from strlcpy with unused retval to strscpyWolfram Sang1-1/+1
Follow the advice of the below link and prefer 'strscpy' in this subsystem. Conversion is 1:1 because the return value is not used. Generated by a coccinelle script. Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/ Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220830201457.7984-2-wsa+renesas@sang-engineering.com
2022-05-11wilc1000: fix crash observed in AP mode with cfg80211_register_netdevice()Ajay Singh1-2/+2
Monitor(mon.) interface is used for handling the AP mode and 'ieee80211_ptr' reference is not getting set for it. Like earlier implementation, use register_netdevice() instead of cfg80211_register_netdevice() which expects valid 'ieee80211_ptr' reference to avoid the possible crash. Fixes: 2fe8ef106238 ("cfg80211: change netdev registration/unregistration semantics") Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Signed-off-by: Kalle Valo <kvalo@kernel.org> Link: https://lore.kernel.org/r/20220504161924.2146601-3-ajay.kathat@microchip.com
2021-01-22cfg80211: change netdev registration/unregistration semanticsJohannes Berg1-2/+2
We used to not require anything in terms of registering netdevs with cfg80211, using a netdev notifier instead. However, in the next patch reducing RTNL locking, this causes big problems, and the simplest way is to just require drivers to do things better. Change the registration/unregistration semantics to require the drivers to call cfg80211_(un)register_netdevice() when this is happening due to a cfg80211 request, i.e. add_virtual_intf() or del_virtual_intf() (or if it somehow has to happen in any other cfg80211 callback). Otherwise, in other contexts, drivers may continue to use the normal netdev (un)registration functions as usual. Internally, we still use the netdev notifier and track (by the new wdev->registered bool) if the wdev had already been added to cfg80211 or not. Link: https://lore.kernel.org/r/20210122161942.cf2f4b65e4e9.Ida8234e50da13eb675b557bac52a713ad4eddf71@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-09-21net: wilc1000: clean up resource in error path of init mon interfaceHuang Guobin1-2/+1
The wilc_wfi_init_mon_int() forgets to clean up resource when register_netdevice() failed. Add the missed call to fix it. And the return value of netdev_priv can't be NULL, so remove the unnecessary error handling. Fixes: 588713006ea4 ("staging: wilc1000: avoid the use of 'wilc_wfi_mon' static variable") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Huang Guobin <huangguobin4@huawei.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200917123019.206382-1-huangguobin4@huawei.com
2020-07-14wilc1000: use strlcpy to avoid 'stringop-truncation' warningAjay Singh1-2/+1
Make use 'strlcpy' instead of 'strncpy' to overcome 'stringop-truncation' compiler warning. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200710051826.3267-3-ajay.kathat@microchip.com
2020-06-26wilc1000: move wilc driver out of stagingAjay Singh1-0/+260
WILC1000 is an IEEE 802.11 b/g/n IoT link controller module. The WILC1000 connects to Microchip AVR/SMART MCUs, SMART MPUs, and other processors with minimal resource requirements with a simple SPI/SDIO-to-Wi-Fi interface. WILC1000 driver has been part of staging for few years. With contributions from the community, it has improved significantly. Full driver review has helped in achieving the current state. The details for those reviews are captured in 1 & 2. [1]. https://lore.kernel.org/linux-wireless/1537957525-11467-1-git-send-email-ajay.kathat@microchip.com/ [2]. https://lore.kernel.org/linux-wireless/1562896697-8002-1-git-send-email-ajay.kathat@microchip.com/ Signed-off-by: Ajay Singh <ajay.kathat@microchip.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>