On 02/08/2018 02:22 AM, Eric Anholt wrote:
"Gustavo A. R. Silva" <gust...@embeddedor.com> writes:
Add suffix ULL to constant 9 in order to give the compiler complete
information about the proper arithmetic to use. Notice that this
constant is used in a context that expects an expression of type
unsigned long long (64 bits, unsigned).
The expression tfr->len * 9 * 1000000 is currently being evaluated
using 32-bit arithmetic.
Signed-off-by: Gustavo A. R. Silva <gust...@embeddedor.com>
The effect looks like it would be that we would have chosen polling mode
instead of waiting for interrupts for some transfers >477 seconds.
Seems like a good fix for an unlikely bug.
Reviewed-by: Eric Anholt <e...@anholt.net>
Thank you for your review.