On Fri, Feb 16, 2018 at 06:25:02PM -0800, Quytelda Kahja wrote:
> Use GCC extensions to prevent macro arguments from accidentally being evaluated
> multiple times when the macro is called.
>
> Signed-off-by: Quytelda Kahja <quytelda@xxxxxxxxxxx>
> ---
> drivers/staging/ks7010/ks_hostif.h | 74 +++++++++++++++++++++++++-------------
> 1 file changed, 50 insertions(+), 24 deletions(-)
>
> diff --git a/drivers/staging/ks7010/ks_hostif.h b/drivers/staging/ks7010/ks_hostif.h
> index 5bae8d468e23..750ac86cee77 100644
> --- a/drivers/staging/ks7010/ks_hostif.h
> +++ b/drivers/staging/ks7010/ks_hostif.h
> @@ -599,19 +599,39 @@ struct hostif_mic_failure_confirm_t {
> #define TX_RATE_48M (uint8_t)(480 / 5)
> #define TX_RATE_54M (uint8_t)(540 / 5)
>
> -#define IS_11B_RATE(A) (((A & RATE_MASK) == TX_RATE_1M) || ((A & RATE_MASK) == TX_RATE_2M) || \
> - ((A & RATE_MASK) == TX_RATE_5M) || ((A & RATE_MASK) == TX_RATE_11M))
> -
> -#define IS_OFDM_RATE(A) (((A & RATE_MASK) == TX_RATE_6M) || ((A & RATE_MASK) == TX_RATE_12M) || \
> - ((A & RATE_MASK) == TX_RATE_24M) || ((A & RATE_MASK) == TX_RATE_9M) || \
> - ((A & RATE_MASK) == TX_RATE_18M) || ((A & RATE_MASK) == TX_RATE_36M) || \
> - ((A & RATE_MASK) == TX_RATE_48M) || ((A & RATE_MASK) == TX_RATE_54M))
> -
> -#define IS_11BG_RATE(A) (IS_11B_RATE(A) || IS_OFDM_RATE(A))
> -
> -#define IS_OFDM_EXT_RATE(A) (((A & RATE_MASK) == TX_RATE_9M) || ((A & RATE_MASK) == TX_RATE_18M) || \
> - ((A & RATE_MASK) == TX_RATE_36M) || ((A & RATE_MASK) == TX_RATE_48M) || \
> - ((A & RATE_MASK) == TX_RATE_54M))
> +#define IS_11B_RATE(A) \
> + ({ \
> + typeof(A) A_ = (A); \
> + ((A_ & RATE_MASK) == TX_RATE_1M) || \
> + ((A_ & RATE_MASK) == TX_RATE_2M) || \
> + ((A_ & RATE_MASK) == TX_RATE_5M) || \
> + ((A_ & RATE_MASK) == TX_RATE_11M); })
> +
Again, please just make these real functions, if they are actually used.
thanks,
greg k-h
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