Re: [PATCH] scsi: libsas: Remove pcidev reference

From: Joe Perches
Date: Mon Nov 12 2018 - 13:58:19 EST


On Mon, 2018-11-12 at 18:48 +0000, John Garry wrote:
> On 12/11/2018 18:30, Joe Perches wrote:
[]
> > diff --git a/drivers/scsi/libsas/sas_internal.h b/drivers/scsi/libsas/sas_internal.h
[]
> > @@ -32,7 +32,10 @@
> > #include <scsi/libsas.h>
> > #include <scsi/sas_ata.h>
> >
> > -#define sas_printk(fmt, ...) printk(KERN_NOTICE "sas: " fmt, ## __VA_ARGS__)
> > +#ifdef pr_fmt
> > +#undef pr_fmt
> > +#endif
> > +#define pr_fmt(fmt) "sas: " fmt
>
> Some other subsystem may try to include this header, and gets its
> message prefix overwritten. Just a consequence for doing something bad,
> right?

Right.

And as this file is internal to drivers/scsi/libsas
that seems very unlikely to occur.

It also might useful to use the common debugging
mechanisms and convert SAS_DPRINTK to pr_debug
which would use the same #define pr_fmt.