Re: [PATCH v1 3/6] driver: Google EFI SMI
From: Mike Waychison
Date: Tue Jan 25 2011 - 18:13:23 EST
On Mon, Jan 24, 2011 at 7:17 PM, Greg KH <greg@xxxxxxxxx> wrote:
> On Mon, Jan 24, 2011 at 04:24:49PM -0800, Mike Waychison wrote:
>> +struct gsmi_ioctl {
>> + uint16_t length; /* total length including data */
>> + int version; /* structure version */
>> + int command; /* ioctl command */
>
> Ick. Use proper data types if you are going to create a new ioctl.
> Same goes for the structures above (hint, use __u32 and friends, not the
> unit??_t crap.
>
> I'd strongly suggest NOT creating a new ioctl though, that' just going
> to be a pain in the long run.
Ok. I'll change these. Even if the __u32 vs u32 vs uint32_t
differentiation is non-sense :(
>
>
>> + union {
>> + struct gsmi_get_nvram_var get_nvram_var;
>> + struct gsmi_get_next_var get_next_var;
>> + struct gsmi_set_nvram_var set_nvram_var;
>> + struct gsmi_set_event_log set_event_log;
>> + struct gsmi_clear_event_log clear_event_log;
>> + } gsmi_cmd;
>> +} __packed;
>> +
>> +#define GSMI_BASE 'G'
>> +#define GSMI_IOCTL_VERSION 1
>> +#define GSMI_IOCTL _IOWR(GSMI_BASE, GSMI_IOCTL_VERSION, \
>> + struct gsmi_ioctl)
>> +
>> +#endif /* _LINUX_GSMI_H */
>> diff --git a/include/linux/miscdevice.h b/include/linux/miscdevice.h
>> index 18fd130..34f5dfa 100644
>> --- a/include/linux/miscdevice.h
>> +++ b/include/linux/miscdevice.h
>> @@ -40,6 +40,7 @@
>> #define BTRFS_MINOR 234
>> #define AUTOFS_MINOR 235
>> #define MAPPER_CTRL_MINOR 236
>> +#define GOOGLE_SMI_MINOR 242
>> #define MISC_DYNAMIC_MINOR 255
>
> Why make this a static number and not just use a dynamic one?
Well, we use static device numbers, which is why it has historically
been static as well. Yes, that puts us squarely in the 1990s :)
I can change this guy too though.
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