On 7 July 2015 at 22:29, Masahiro Yamada <yamada.masah...@socionext.com> wrote:
> The macro cpu_relax() is defined by several headers in different
> ways.
>
> arch/{arm,avr32,mips}/include/asm/processor.h defines it as follows:
> #define cpu_relax() barrier()
>
> On the other hand, include/linux/compat.h defines it as follows:
> #define cpu_relax() do {} while (0)
>
> If both headers are included from the same source file, the warning
> warning: "cpu_relax" redefined [enabled by default]
> is displayed.
>
> It effectively makes it impossible to include <linux/compat.h>
> from some sources. Drop the latter.
>
> Signed-off-by: Masahiro Yamada <yamada.masah...@socionext.com>
> ---
>
> drivers/usb/musb-new/musb_gadget_ep0.c | 1 +
> include/linux/compat.h | 2 --
> 2 files changed, 1 insertion(+), 2 deletions(-)
Acked-by: Simon Glass <s...@chromium.org>
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