On Tue, Nov 15, 2011 at 4:21 PM, Anatolij Gustschin <ag...@denx.de> wrote:
> Fix:
> davinci_i2c.c: In function 'flush_rx':
> davinci_i2c.c:81:6: warning: variable 'dummy' set but not used
> [-Wunused-but-set-variable]
>
> Signed-off-by: Anatolij Gustschin <ag...@denx.de>
> Cc: Heiko Schocher <h...@denx.de>
> ---
> drivers/i2c/davinci_i2c.c | 4 +---
> 1 files changed, 1 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/i2c/davinci_i2c.c b/drivers/i2c/davinci_i2c.c
> index 5e3406d..a09dc76 100644
> --- a/drivers/i2c/davinci_i2c.c
> +++ b/drivers/i2c/davinci_i2c.c
> @@ -78,13 +78,11 @@ static int poll_i2c_irq(int mask)
>
> void flush_rx(void)
> {
> - int dummy;
> -
> while (1) {
> if (!(REG(I2C_STAT) & I2C_STAT_RRDY))
> break;
>
> - dummy = REG(I2C_DRR);
> + (void)REG(I2C_DRR);
This becomes:
(void)(*(volatile unsigned int *)(I2C_DDR))
So we don't need that cast. Also, can we at get a comment about what
/ why we're doing this?
--
Tom
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