Re: need for packed attribute

Benjamin LaHaise
2006-01-12T18:36:35Z

On Fri, Jan 06, 2006 at 06:38:46PM +0000, Russell King wrote:
> > /* All standard descriptors have these 2 fields at the beginning */
> > struct usb_descriptor_header {
> > __u8 bLength;
> > __u8 bDescriptorType;
> > };
>
> sizeof(struct usb_descriptor_header) will be 4 on ARM. If this
> concerns you, you need to pack the structure thusly:

Interesting. Perhaps we should add -Wpadded to CFLAGS in order to remind
people, although that might take a fair bit of work to clean up existing
structure definitions.

-ben
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