Re: [libvirt PATCH] udev: consider the device a CDROM when ID_CDROM=1

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On 04/23/2014 04:42 AM, Giuseppe Scrivano wrote:
> Some CDROM devices are reported by udev to have an ID_TYPE="generic"
> thus it is necessary to check if ID_CDROM is present.
> 
> As a side effect, treating ID_TYPE="generic" as a missing ID_TYPE will
> enable checks for ID_DRIVE_FLASH_SD and ID_DRIVE_FLOPPY and the
> udevKludgeStorageType heuristic.
> 
> Signed-off-by: Giuseppe Scrivano <gscrivan@xxxxxxxxxx>
> ---

>      if (udevGetStringProperty(device,
>                                "ID_TYPE",
> -                              &data->storage.drive_type) != PROPERTY_FOUND) {
> +                              &data->storage.drive_type) != PROPERTY_FOUND
> +        || STREQ(def->caps->data.storage.drive_type, "generic")) {

Style: HACKING documents that we tend to leave || hanging on the first
line, not wrapped to the next line (closer to kernel style than GNU style).

>          int tmp_int = 0;
>  
>          /* All floppy drives have the ID_DRIVE_FLOPPY prop. This is
> @@ -1104,6 +1105,12 @@ static int udevProcessStorage(struct udev_device *device,
>  
>              if (VIR_STRDUP(data->storage.drive_type, "floppy") < 0)
>                  goto out;
> +        } else if ((udevGetIntProperty(device, "ID_CDROM",
> +                                &tmp_int, 0) == PROPERTY_FOUND) &&
> +            (tmp_int == 1)) {

Style: over-parenthesized, and indentation is odd.

> +
> +            if (VIR_STRDUP(data->storage.drive_type, "cd") < 0)
> +                goto out;
>          } else if ((udevGetIntProperty(device, "ID_DRIVE_FLASH_SD",
>                                         &tmp_int, 0) == PROPERTY_FOUND) &&
>                     (tmp_int == 1)) {

But you were just copying existing oddness.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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