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SubjectRe: [PATCH v4 08/25] ocxl: Emit a log message showing how much LPC memory was detected
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On Wed, 2020-04-01 at 01:49 -0700, Dan Williams wrote:
> On Sun, Mar 29, 2020 at 10:23 PM Alastair D'Silva <alastair@d-silva.org> wrote:
> > This patch emits a message showing how much LPC memory & special purpose
> > memory was detected on an OCXL device.
[]
> > diff --git a/drivers/misc/ocxl/config.c b/drivers/misc/ocxl/config.c
[]
> > @@ -568,6 +568,10 @@ static int read_afu_lpc_memory_info(struct pci_dev *dev,
> > afu->special_purpose_mem_size =
> > total_mem_size - lpc_mem_size;
> > }
> > +
> > + dev_info(&dev->dev, "Probed LPC memory of %#llx bytes and special purpose memory of %#llx bytes\n",
> > + afu->lpc_mem_size, afu->special_purpose_mem_size);
>
> A patch for a single log message is too fine grained for my taste,
> let's squash this into another patch in the series.

Is the granularity of lpc_mem_size actually bytes?
Might this be better as KiB or something using functions

Maybe something like:

unsigned long si_val(unsigned long val)
{
static const char units[] = "BKMGTPE";
const char *unit = units;

while (!(val & 1023) && unit[1]) {
val >>= 10;
unit++;
}

return val;
}

char si_type(unsigned long val)
{
static const char units[] = "BKMGTPE";
const char *unit = units;

while (!(val & 1023) && unit[1]) {
val >>= 10;
unit++;
}

return *unit;
}

so this could be something like:

dev_info(&dev->dev, "Probed LPC memory of %#llu%c and special purpose memory of %#llu%c\n",
si_val(afu->lpc_mem_size), si_type(afu->lpc_mem_size),
si_val(afu->special_purpose_mem_size), si_type(afu->special_purpose_mem_size));



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