Re: [PATCH] net: sfc: avoid -Wtype-limits warning

[David Miller]

From: Arnd Bergmann <arnd@xxxxxxxx>
Date: Wed, 15 Jun 2016 22:31:10 +0200

> When building with -Wextra, we get a harmless warning from the
> EFX_EXTRACT_OWORD32 macro:
> 
> ethernet/sfc/farch.c: In function 'efx_farch_test_registers':
> ethernet/sfc/farch.c:119:30: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits]
> ethernet/sfc/farch.c:124:144: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits]
> ethernet/sfc/farch.c:124:392: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits]
> ethernet/sfc/farch.c:124:731: error: comparison of unsigned expression < 0 is always false [-Werror=type-limits]
> 
> The macro and the caller are both correct, but we can avoid the
> warning by changing the index variable to a signed type.
> 
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>

Applied, thanks.