On Wed, Nov 10, 2010 at 08:00:49PM +0900, Paul Mundt wrote:
> On Wed, Nov 10, 2010 at 07:27:44PM +0900, Simon Horman wrote:
> > Use pr_fmt to set the prefix for pr_ messages.
> > I believe this method is common in other
> > source files in the kernel tree.
> >
> pr_fmt() is ok when you have no better options, but in this case you have
> the struct device working for you, so you really should be using it.
>
> Consider the case where you have multiple MMCIF blocks, the debug
> messages here won't really give you much helpful information if you have
> no idea which block you're on.
>
> For example..
>
> > diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
> > index 3f49273..9f37f74 100644
> > --- a/drivers/mmc/host/sh_mmcif.c
> > +++ b/drivers/mmc/host/sh_mmcif.c
> > @@ -221,8 +222,8 @@ static int sh_mmcif_error_manage(struct sh_mmcif_host *host)
> >
> > state1 = sh_mmcif_readl(host->addr, MMCIF_CE_HOST_STS1);
> > state2 = sh_mmcif_readl(host->addr, MMCIF_CE_HOST_STS2);
> > - pr_debug("%s: ERR HOST_STS1 = %08x\n", DRIVER_NAME, state1);
> > - pr_debug("%s: ERR HOST_STS2 = %08x\n", DRIVER_NAME, state2);
> > + pr_debug("ERR HOST_STS1 = %08x\n", state1);
> > + pr_debug("ERR HOST_STS2 = %08x\n", state2);
> >
> > if (state1 & STS1_CMDSEQ) {
> > sh_mmcif_bitset(host, MMCIF_CE_CMD_CTRL, CMD_CTRL_BREAK);
>
> You can just convert these to:
>
> dev_dbg(&host->pd->dev, ...);
>
> > @@ -230,7 +231,7 @@ static int sh_mmcif_error_manage(struct sh_mmcif_host *host)
> > while (1) {
> > timeout--;
> > if (timeout < 0) {
> > - pr_err(DRIVER_NAME": Forceed end of " \
> > + pr_err("Forceed end of " \
> > "command sequence timeout err\n");
> > return -EIO;
> > }
>
> dev_err(), and so on.
>
Thanks, will do.
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