Re: [PATCH 4/4] binder: fix max_thread type inconsistency

[Greg Kroah-Hartman]

On Sun, Apr 21, 2024 at 12:00:30AM +0000, Carlos Llamas wrote:
> On Thu, Apr 18, 2024 at 06:40:52AM +0200, Greg Kroah-Hartman wrote:
> > On Wed, Apr 17, 2024 at 07:13:44PM +0000, Carlos Llamas wrote:
> > > The type defined for the BINDER_SET_MAX_THREADS ioctl was changed from
> > > size_t to __u32 in order to avoid incompatibility issues between 32 and
> > > 64-bit kernels. However, the internal types used to copy from user and
> > > store the value were never updated. Use u32 to fix the inconsistency.
> > > 
> > > Fixes: a9350fc859ae ("staging: android: binder: fix BINDER_SET_MAX_THREADS declaration")
> > > Reported-by: Arve Hjønnevåg <arve@xxxxxxxxxxx>
> > > Cc: stable@xxxxxxxxxxxxxxx
> > > Signed-off-by: Carlos Llamas <cmllamas@xxxxxxxxxx>
> > > ---
> > >  drivers/android/binder.c          | 2 +-
> > >  drivers/android/binder_internal.h | 2 +-
> > >  2 files changed, 2 insertions(+), 2 deletions(-)
> > 
> > Why does only patch 4/4 need to go into the tree now, and as a stable
> > backport, but the first 3 do not?  Shouldn't this be two different
> > series of patches, one 3 long, and one 1 long, to go to the different
> > branches (next and linus)?
> 
> Yes, that is correct. Only patch 4/4 would need to be picked for linus
> now and for stable. The others would go to next. Sorry, I was not aware
> that sending them separately would be preferred.
> 
> I'll drop 4/4 patch from the series in v2. Let me know if you still need
> me to send it again separately.

Please do, thanks!

greg k-h