On Thu, Jul 23, 2015 at 01:39:06PM +0300, Sergei Shtylyov wrote:
> Hello.
>
> On 7/22/2015 9:56 PM, Peter E. Berger wrote:
> > @@ -928,6 +928,41 @@ static int ti_cpu_rev(struct edge_ti_manuf_descriptor
> > *desc)
> > return TI_GET_CPU_REVISION(desc->CpuRev_BoardRev);
> > }
> >
> > +static int check_fw_sanity(struct edgeport_serial *serial,
> > + const struct firmware *fw)
> > +{
> > + u16 length_total;
> > + int checksum = 0;
> > + int pos;
> > + struct device *dev = &serial->serial->interface->dev;
> > + struct edgeport_fw_hdr *fw_hdr = (struct edgeport_fw_hdr *)fw->data;
> > +
> > + if (fw->size < sizeof(struct edgeport_fw_hdr)) {
> > + dev_err(dev, "Incomplete fw header\n");
> > + return -EINVAL;
> > + }
> > +
> > + length_total = le16_to_cpu(fw_hdr->length) +
> > + sizeof(struct edgeport_fw_hdr);
> > +
> > + if (fw->size != length_total) {
> > + dev_err(dev, "Bad fw size (Expected: %u, Got: %zu)\n",
>
> I would not capitalize the latter 2 words.
I wouldn't either; just use lower case for the whole message.
> > + length_total, fw->size);
> > + return -EINVAL;
> > + }
> > +
> > + for (pos = sizeof(struct edgeport_fw_hdr); pos < fw->size; ++pos)
> > + checksum = (checksum + fw->data[pos]) & 0xFF;
>
> Why not make 'checksum' 's8' or 'u8' instead of *int*?
I'd prefer that as well.
> > +
> > + if (checksum != fw_hdr->checksum) {
> > + dev_err(dev, "Bad fw checksum (Expected: 0x%x, Got: 0x%x)\n",
> > + fw_hdr->checksum, checksum);
>
> I would not capitalize the latter 2 words.
Please use all lower case.
Thanks,
Johan
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