Re: [PATCH] spi: sh-msiof: avoid integer overflow in constants

From: Wolfram Sang
Date: Tue Jan 30 2024 - 06:27:12 EST



> What about unifying the individual SIFCTR_?FWM_[0-9]* definitions
> into SIFCTR_xFWM_[0-9]* instead, and using the bitfield helpers in its
> sole user?

But they don't match, so we can't unify them?

#define SIFCTR_TFWM_1 (7UL << 29) /* Transfer Request when 1 empty stage */

vs

#define SIFCTR_RFWM_1 (0 << 13) /* Transfer Request when 1 valid stages */

Also, the steps don't match (1, 4, 8, 12..) vs (1, 4, 8, 16...).

Attachment: signature.asc
Description: PGP signature