On Mon, Sep 21, 2015 at 03:20:12PM +0900, Tony Cho wrote: > > > On 2015년 09월 21일 15:07, Greg KH wrote: > >On Mon, Sep 21, 2015 at 02:54:28PM +0900, Tony Cho wrote: > >> > >>On 2015년 09월 21일 11:01, Greg KH wrote: > >>>On Sun, Sep 20, 2015 at 03:51:15PM +0900, Chaehyun Lim wrote: > >>>>This patch removes function declaration of WILC_WFI_frame_register in > >>>>linux_wlan.c file, then adds it in wilc_wfi_cfgoperations.h file. > >>>> > >>>>The compilation warning occurs because it is assigned to incorrect > >>>>pointer type of second parameter of WILC_WFI_frame_register. > >>>>It is assigned with struct wireless_dev pointer type. > >>>How was this code ever even working properly if the wrong pointer was > >>>being passed into it? > >>> > >>>Tony, what is going on here, is this code just never called? If so, can > >>>we just delete the whole function? > >>> > >>>thanks, > >>> > >>>greg k-h > >>This file with linux_wlan.c file is being fully changed, but at this time, the second parameter which passed as > >>net_device pointer instead of wireless_dev incorrectly is never being used inside the WILC_WFI_frame_register(). > >>That's why no problem is found yet. > >Then we should just delte the parameter entirely, no need to pass > >something into a function that is never used. > > This function is defined in the struct cfg80211_ops as the followings: > > void (*mgmt_frame_register)(struct wiphy *wiphy, > > > struct wireless_dev *wdev, > > > u16 frame_type, bool reg); > > So, the second parameter cannot be removed to connect the cfg80211 structure correctly. The second parameter > is not used just in wilc driver. It seems the second parameter is not famous in cfg80211 driver when looking for > other cfg80211 driver, just to get the private data, but the wilc driver gets it from struct wiphy. Ah, ok, that makes a bit more sense, thanks for explaining it, I'll go try to queue up the patch now... thanks, greg k-h _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
