[U-Boot] [PATCH v1] gcc-9: silence 'address-of-packed-member' warning

[Tom Rini]

On Fri, Nov 29, 2019 at 07:47:59PM +0200, Andy Shevchenko wrote:

> GCC 9.x starts complaining about potential misalignment of the pointer to
> the array (in this case alignment=2) in the packed (alignment=1) structures.
> 
> Repeating Linus' Torvalds commit 6f303d60534c in the Linux kernel.
> 
> Original commit message:
> 
>   We already did this for clang, but now gcc has that warning too.
>   Yes, yes, the address may be unaligned.  And that's kind of the point.
> 
> This in particular hides the warnings like
> 
> drivers/usb/gadget/composite.c:545:23: warning: taking address of packed member of ‘struct usb_string_descriptor’ may result in an unaligned pointer value [-Waddress-of-packed-member]
>   545 |    collect_langs(sp, s->wData);
> 
> drivers/usb/gadget/composite.c:550:24: warning: taking address of packed member of ‘struct usb_string_descriptor’ may result in an unaligned pointer value [-Waddress-of-packed-member]
>   550 |     collect_langs(sp, s->wData);
> 
> drivers/usb/gadget/composite.c:555:25: warning: taking address of packed member of ‘struct usb_string_descriptor’ may result in an unaligned pointer value [-Waddress-of-packed-member]
>   555 |      collect_langs(sp, s->wData);
> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko at linux.intel.com>

Applied to u-boot/master, thanks!

-- 
Tom
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