Subject: Re: linux-next: build warnings after merge of the block tree

From: Stephen Rothwell <[email-masked]>
Date: Tue, 28 Mar 2023 10:47:19 +1100

Hi Josh,

On Mon, 27 Mar 2023 09:26:30 -0700 Josh Poimboeuf <[email-masked]> wrote:
>
> On Mon, Mar 27, 2023 at 12:00:17PM +1100, Stephen Rothwell wrote:
> > 
> > After merging the block tree, today's linux-next build (x86_64
> > allnoconfig) produced these warnings:
> > 
> > lib/iov_iter.o: warning: objtool: .altinstr_replacement+0x0: redundant UACCESS d
> > isable
> > lib/iov_iter.o: warning: objtool: iovec_from_user.part.0+0xc7: call to copy_comp
> > at_iovec_from_user.part.0() with UACCESS enabled
> > lib/iov_iter.o: warning: objtool: __import_iovec+0x21d: call to copy_compat_iovec_from_user.part.0() with UACCESS enabled
> > 
> > Presumably introduced by commit
> > 
> >   6376ce56feb6 ("iov_iter: import single vector iovecs as ITER_UBUF")  
> 
> I'm not able to recreate.  What's your compiler version?

$ x86_64-linux-gnu-gcc --version
x86_64-linux-gnu-gcc (Debian 12.2.0-14) 12.2.0

-- 
Cheers,
Stephen Rothwell