On Wed, May 25, 2022 at 12:20 AM Luis Chamberlain <mcgrof@xxxxxxxxxx> wrote: > > On Tue, May 24, 2022 at 10:30:01AM +0800, Muchun Song wrote: > > On Tue, May 24, 2022 at 1:27 AM Luis Chamberlain <mcgrof@xxxxxxxxxx> wrote: > > > > > > On Sun, May 22, 2022 at 01:26:24PM +0800, Muchun Song wrote: > > > > Setting ->proc_handler to proc_dobool at the same time setting ->maxlen > > > > to sizeof(int) is counter-intuitive, it is easy to make mistakes. For > > > > robustness, fix it by reimplementing proc_dobool() properly. > > > > > > > > Signed-off-by: Muchun Song <songmuchun@xxxxxxxxxxxxx> > > > > Cc: Luis Chamberlain <mcgrof@xxxxxxxxxx> > > > > Cc: Kees Cook <keescook@xxxxxxxxxxxx> > > > > Cc: Iurii Zaikin <yzaikin@xxxxxxxxxx> > > > > --- > > > > > > Thanks for your patch Muchun! > > > > > > Does this fix an actualy issue? Because the comit log suggest so. > > > > Thanks for taking a look. > > > > I think it is an improvement not a real bug fix. > > Then please adjust the commit log accordingly. > > > When I first use > > proc_dobool in my driver, I assign sizeof(variable) to table->maxlen. > > Then I found it was wrong, it should be sizeof(int) which was > > counter-intuitive. So it is very easy to make mistakes. Should I add > > those into the commit log? > > Yes that is useful information when doing patch review as well. > Thanks. I'll update in v3.