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xucheng5
724ad008ab
The rwcnt (read word count) field in ctucanfd_frame_fmt_s was previously limited to 4 bits, allowing a maximum value of 15. This is insufficient to correctly represent the frame size (excluding the FRAME_FORMAT word) for larger CAN FD frames as required by the CTU CAN FD hardware. Increase the rwcnt bitfield width to support a larger range and adjust the structure layout so that ctucanfd_frame_fmt_s has a size that is a multiple of 4 bytes, as required by the hardware interface. This change improves correctness and robustness when handling larger CAN FD frames without affecting existing users. Signed-off-by: xucheng5 <xucheng5@xiaomi.com>