lkml.org 
[lkml]   [2019]   [Dec]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: linux-next: Tree for Dec 6 (objtool, lots in btrfs)
On Wed, Dec 11, 2019 at 08:21:38AM -0800, Randy Dunlap wrote:
> [oops, forgot to add Josh and PeterZ]
>
> On 12/11/19 5:49 AM, David Sterba wrote:
> > On Fri, Dec 06, 2019 at 08:17:30AM -0800, Randy Dunlap wrote:
> >> On 12/5/19 6:54 PM, Stephen Rothwell wrote:
> >>> Hi all,
> >>>
> >>> Please do not add any material for v5.6 to your linux-next included
> >>> trees until after v5.5-rc1 has been released.
> >>>
> >>> Changes since 20191204:
> >>>
> >>
> >> on x86_64:
> >>
> >> fs/btrfs/ctree.o: warning: objtool: btrfs_search_slot()+0x2d4: unreachable instruction
> >
> > Can somebody enlighten me what is one supposed to do to address the
> > warnings? Function names reported in the list contain our ASSERT macro
> > that conditionally calls BUG() that I believe is what could cause the
> > unreachable instructions but I don't see how.
> >
> > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/fs/btrfs/ctree.h#n3113
> >
> > __cold
> > static inline void assfail(const char *expr, const char *file, int line)
> > {
> > if (IS_ENABLED(CONFIG_BTRFS_ASSERT)) {
> > pr_err("assertion failed: %s, in %s:%d\n", expr, file, line);
> > BUG();
> > }
> > }
> >
> > #define ASSERT(expr) \
> > (likely(expr) ? (void)0 : assfail(#expr, __FILE__, __LINE__))
> >

Randy, can you share one of the btrfs .o files? I'm not able to
recreate.

--
Josh

\
 
 \ /
  Last update: 2019-12-12 19:48    [W:0.086 / U:8.308 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site