On Tue, 4 Nov 2014 17:17:08 +0000
"Rustad, Mark D" <[email protected]> wrote:

> On Nov 4, 2014, at 7:52 AM, Steven Rostedt <[email protected]> wrote:
> 
> > From: "Steven Rostedt (Red Hat)" <[email protected]>
> > 
> > To allow for the restructiong of the trace_seq code, we need users
> > of it to use the helper functions instead of accessing the internals
> > of the trace_seq structure itself.
> > 
> > Cc: Mark Rustad <[email protected]>
> > Cc: Jeff Kirsher <[email protected]>
> > Cc: Paolo Bonzini <[email protected]>
> > Signed-off-by: Steven Rostedt <[email protected]>
> > ---
> > arch/x86/kvm/mmutrace.h | 4 ++--
> > 1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/arch/x86/kvm/mmutrace.h b/arch/x86/kvm/mmutrace.h
> > index 5aaf35641768..ce463a9cc8fb 100644
> > --- a/arch/x86/kvm/mmutrace.h
> > +++ b/arch/x86/kvm/mmutrace.h
> > @@ -22,7 +22,7 @@
> >     __entry->unsync = sp->unsync;
> > 
> > #define KVM_MMU_PAGE_PRINTK() ({                                    \
> > -   const u32 saved_len = p->len;                                   \
> > +   const char *saved_ptr = trace_seq_buffer_ptr(p);                \
> 
> I think the above should not be a const char *, because the location pointed 
> to is surely being changed. It should either be a char * or a char * const.

Ah right. It should be 'char * const'.

Thanks, I'll update it.

-- Steve

> 
> >     static const char *access_str[] = {                             \
> >             "---", "--x", "w--", "w-x", "-u-", "-ux", "wu-", "wux"  \
> >     };                                                              \
> > @@ -41,7 +41,7 @@
> >                      role.nxe ? "" : "!",                           \
> >                      __entry->root_count,                           \
> >                      __entry->unsync ? "unsync" : "sync", 0);       \
> > -   p->buffer + saved_len;                                          \
> > +   saved_ptr;                                                      \
> >             })
> > 
> > #define kvm_mmu_trace_pferr_flags       \
> > -- 
> > 2.1.1
> 

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