Re: [PATCH v4 2/3] powerpc/modules: Don't try to restore r2 after a sibling call

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, Nov 15, 2017 at 02:58:33PM +0530, Naveen N. Rao wrote:
> > +int instr_is_link_branch(unsigned int instr)
> > +{
> > +	return (instr_is_branch_iform(instr) || instr_is_branch_bform(instr)) &&
> > +	       (instr & BRANCH_SET_LINK);
> > +}
> > +
> 
> Nitpicking here, but since we're not considering the other branch forms,
> perhaps this can be renamed to instr_is_link_relative_branch() (or maybe
> instr_is_relative_branch_link()), just so we're clear :)

My understanding is that the absolute/relative bit isn't a "form", but
rather a bit that can be set for either the b-form (conditional) or the
i-form (unconditional).  And the above function isn't checking the
absolute bit, so it isn't necessarily a relative branch.  Or did I miss
something?

-- 
Josh
--
To unsubscribe from this list: send the line "unsubscribe live-patching" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Linux Kernel]     [Linux NFS]     [Linux NILFS]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux SCSI]

  Powered by Linux