Hi Jingoo, On Wed, Aug 7, 2013 at 6:36 PM, Jingoo Han <jg1.han@xxxxxxxxxxx> wrote: > > >> -----Original Message----- >> From: Julian Calaby [mailto:julian.calaby@xxxxxxxxx] >> Sent: Wednesday, August 07, 2013 5:21 PM >> To: Jingoo Han >> Cc: Oliver Neukum; James Bottomley; Ali Akcaagac; Jamie Lenehan; dc395x@xxxxxxxxxxx; James Bottomley; >> linux-scsi >> Subject: Re: [PATCH 3/8] [SCSI] dc395x: use NULL instead of 0 >> >> Hi Jingoo, >> >> On Wed, Aug 7, 2013 at 5:45 PM, Jingoo Han <jg1.han@xxxxxxxxxxx> wrote: >> > On Wednesday, August 07, 2013 3:50 PM, Oliver Neukum wrote: >> >> On Wed, 2013-08-07 at 12:55 +0900, Jingoo Han wrote: >> >> >> >> > @@ -4183,15 +4183,17 @@ static void check_eeprom(struct NvRamType *eeprom, unsigned long io_port) >> >> > */ >> >> > dprintkl(KERN_WARNING, >> >> > "EEProm checksum error: using default values and options.\n"); >> >> > - eeprom->sub_vendor_id[0] = (u8)PCI_VENDOR_ID_TEKRAM; >> >> > + eeprom->sub_vendor_id[0] = (u8)(PCI_VENDOR_ID_TEKRAM & 0xff); >> >> >> >> Hi, >> >> >> >> if you are fixing these issues please use the proper macros for >> >> conversion of endianness. >> > >> > Then, do you mean the following? :) >> > >> > - prom->sub_vendor_id[0] = (u8)PCI_VENDOR_ID_TEKRAM; >> > + eprom->sub_vendor_id[0] = (u8)(PCI_VENDOR_ID_TEKRAM & le16_to_cpu(0xff)); >> >> No. >> >> The issue is that the driver is doing things like this: >> >> eeprom->member[0] = (u8)(CONSTANT & 0xff); >> eeprom->member[1] = (u8)(CONSTANT >> 8); >> >> Which is exactly the same as code along the lines of: >> >> eeprom->member = cpu_to_le16(CONSTANT); > > However, when I compile the following, it makes build error. > > - eeprom->sub_vendor_id[0] = (u8)(PCI_VENDOR_ID_TEKRAM & 0xff); > - eeprom->sub_vendor_id[1] = (u8)(PCI_VENDOR_ID_TEKRAM >> 8); > + eeprom->sub_vendor_id = cpu_to_le16(PCI_VENDOR_ID_TEKRAM); Of course it does. I said code along the lines of. You'll need to do more than just what I suggested, including changing the definition of the eeprom struct and fixing any other places where it's used / set. Thanks, -- Julian Calaby Email: julian.calaby@xxxxxxxxx Profile: http://www.google.com/profiles/julian.calaby/ .Plan: http://sites.google.com/site/juliancalaby/ -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
