On 22/07/18 09:27, David Miller wrote: > From: Nikolay Aleksandrov <nikolay@xxxxxxxxxxxxxxxxxxx> > Date: Fri, 20 Jul 2018 17:48:25 +0300 > >> + spin_lock_bh(&p->br->lock); >> + ret = brport_attr->store_raw(p, (char *)buf); >> + spin_unlock_bh(&p->br->lock); > > Please respect the const here. > > Have the methods do a kstrncup(); ... kfree(); sequence if they have > to mangle the contents when there is a newline inside. > > I know the caller is passing in what was a non-const char pointer, > I've looked at the implementation, but it might be that way forever. > > I looked at all other sysfs writes that need to do this \n --> \0 > mangling and they either copy the string first into a static buffer > or they do the kstrncup() thing. > > Thank you. > Okay, will do. I'll also prepare a separate patch for the bonding, it does a cast like this in bonding_sysfs_store_option(). Thanks
