On Tue, May 16, 2023 at 09:45:42AM +0200, Arnd Bergmann wrote: > From: Arnd Bergmann <arnd@xxxxxxxx> > > clang warns about an unpacked structure inside of a packed one: > > drivers/net/wireless/broadcom/b43/b43.h:654:4: error: field data within 'struct b43_iv' is less aligned than 'union (unnamed union at /home/arnd/arm-soc/drivers/net/wireless/broadcom/b43/b43.h:651:2)' and is usually due to 'struct b43_iv' being packed, which can lead to unaligned accesses [-Werror,-Wunaligned-access] > > The problem here is that the anonymous union has the default alignment > from its members, apparently because the original author mixed up the > placement of the __packed attribute by placing it next to the struct > member rather than the union definition. As the struct itself is > also marked as __packed, there is no need to mark its members, so just > move the annotation to the inner type instead. > > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Reviewed-by: Simon Horman <simon.horman@xxxxxxxxxxxx>
