diff mbox

hw/dma/xilinx_axidma: debug printf fixups

Message ID 1452000144-23805-1-git-send-email-drjones@redhat.com
State New
Headers show

Commit Message

Andrew Jones Jan. 5, 2016, 1:22 p.m. UTC
(Found by grepping for broken PRI users.)

Signed-off-by: Andrew Jones <drjones@redhat.com>

---
 hw/dma/xilinx_axidma.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

-- 
2.4.3

Comments

Andrew Jones Jan. 5, 2016, 3:32 p.m. UTC | #1
On Tue, Jan 05, 2016 at 07:07:22AM -0700, Eric Blake wrote:
> On 01/05/2016 06:22 AM, Andrew Jones wrote:

> > (Found by grepping for broken PRI users.)

> > 

> > Signed-off-by: Andrew Jones <drjones@redhat.com>

> > ---

> >  hw/dma/xilinx_axidma.c | 8 ++++----

> >  1 file changed, 4 insertions(+), 4 deletions(-)

> > 

> > diff --git a/hw/dma/xilinx_axidma.c b/hw/dma/xilinx_axidma.c

> > index b1cfa11356a26..2ab0772cd19ae 100644

> > --- a/hw/dma/xilinx_axidma.c

> > +++ b/hw/dma/xilinx_axidma.c

> > @@ -180,10 +180,10 @@ static inline int streamid_from_addr(hwaddr addr)

> >  #ifdef DEBUG_ENET

> >  static void stream_desc_show(struct SDesc *d)

> >  {

> > -    qemu_log("buffer_addr  = " PRIx64 "\n", d->buffer_address);

> > -    qemu_log("nxtdesc      = " PRIx64 "\n", d->nxtdesc);

> > -    qemu_log("control      = %x\n", d->control);

> > -    qemu_log("status       = %x\n", d->status);

> > +    qemu_log("buffer_addr  = 0x%" PRIx64 "\n", d->buffer_address);

> > +    qemu_log("nxtdesc      = 0x%" PRIx64 "\n", d->nxtdesc);

> > +    qemu_log("control      = 0x%x\n", d->control);

> > +    qemu_log("status       = 0x%x\n", d->status);

> 

> This is dead code.  Nothing uses stream_desc_show() even when DEBUG_ENET

> is defined.  I'd just delete the function and #ifdef altogether, instead.


Sounds good, but I guess I'll leave the keep+fix vs. throw decision to the
maintainers, rather than to submit a v2 ripping it out.

Thanks,
drew

> 

> -- 

> Eric Blake   eblake redhat com    +1-919-301-3266

> Libvirt virtualization library http://libvirt.org

>
Andrew Jones Jan. 6, 2016, 12:51 p.m. UTC | #2
On Tue, Jan 05, 2016 at 05:45:57PM -0800, Alistair Francis wrote:
> On Tue, Jan 5, 2016 at 7:32 AM, Andrew Jones <drjones@redhat.com> wrote:

> > On Tue, Jan 05, 2016 at 07:07:22AM -0700, Eric Blake wrote:

> >> On 01/05/2016 06:22 AM, Andrew Jones wrote:

> >> > (Found by grepping for broken PRI users.)

> >> >

> >> > Signed-off-by: Andrew Jones <drjones@redhat.com>

> >> > ---

> >> >  hw/dma/xilinx_axidma.c | 8 ++++----

> >> >  1 file changed, 4 insertions(+), 4 deletions(-)

> >> >

> >> > diff --git a/hw/dma/xilinx_axidma.c b/hw/dma/xilinx_axidma.c

> >> > index b1cfa11356a26..2ab0772cd19ae 100644

> >> > --- a/hw/dma/xilinx_axidma.c

> >> > +++ b/hw/dma/xilinx_axidma.c

> >> > @@ -180,10 +180,10 @@ static inline int streamid_from_addr(hwaddr addr)

> >> >  #ifdef DEBUG_ENET

> >> >  static void stream_desc_show(struct SDesc *d)

> >> >  {

> >> > -    qemu_log("buffer_addr  = " PRIx64 "\n", d->buffer_address);

> >> > -    qemu_log("nxtdesc      = " PRIx64 "\n", d->nxtdesc);

> >> > -    qemu_log("control      = %x\n", d->control);

> >> > -    qemu_log("status       = %x\n", d->status);

> >> > +    qemu_log("buffer_addr  = 0x%" PRIx64 "\n", d->buffer_address);

> >> > +    qemu_log("nxtdesc      = 0x%" PRIx64 "\n", d->nxtdesc);

> >> > +    qemu_log("control      = 0x%x\n", d->control);

> >> > +    qemu_log("status       = 0x%x\n", d->status);

> >>

> >> This is dead code.  Nothing uses stream_desc_show() even when DEBUG_ENET

> >> is defined.  I'd just delete the function and #ifdef altogether, instead.

> >

> > Sounds good, but I guess I'll leave the keep+fix vs. throw decision to the

> > maintainers, rather than to submit a v2 ripping it out.

> 

> I don't see any reason to keep dead code around. I think it should be removed.


The reason I see, is that this function could be useful to temporarily add it
different places while debugging. I.e. this is no different than a collection
of temporary printf's, but saves the time of rewriting those printf's
whenever/wherever they're necessary. I suspect that's why this function is
here in the first place.

That said, I don't debug this file, so I don't really have any say on
whether or not it's of any use now. Anyway, based on the fact this function
has PRI bugs in it that would break compilation, I guess nobody debugs this
file with DEBUG_ENET turned on.

> 

> If you send a V2 removing it (or a new patch altogether) I'll review it.


OK, sending a new patch that kills it.

Thanks,
drew
diff mbox

Patch

diff --git a/hw/dma/xilinx_axidma.c b/hw/dma/xilinx_axidma.c
index b1cfa11356a26..2ab0772cd19ae 100644
--- a/hw/dma/xilinx_axidma.c
+++ b/hw/dma/xilinx_axidma.c
@@ -180,10 +180,10 @@  static inline int streamid_from_addr(hwaddr addr)
 #ifdef DEBUG_ENET
 static void stream_desc_show(struct SDesc *d)
 {
-    qemu_log("buffer_addr  = " PRIx64 "\n", d->buffer_address);
-    qemu_log("nxtdesc      = " PRIx64 "\n", d->nxtdesc);
-    qemu_log("control      = %x\n", d->control);
-    qemu_log("status       = %x\n", d->status);
+    qemu_log("buffer_addr  = 0x%" PRIx64 "\n", d->buffer_address);
+    qemu_log("nxtdesc      = 0x%" PRIx64 "\n", d->nxtdesc);
+    qemu_log("control      = 0x%x\n", d->control);
+    qemu_log("status       = 0x%x\n", d->status);
 }
 #endif