On 6/15/22 04:51, Sergey Shtylyov wrote:
> The packed transfer mode masks and also the {pio|mwdma|udma}_mask fields
> of *struct*s ata_device and ata_port_info are declared as *unsigned long*
> (which is a 64-bit type on 64-bit architectures) but actually the packed
> masks occupy only 20 bits (7 PIO modes, 5 MWDMA modes, and 8 UDMA modes)
> and the PIO/MWDMA/UDMA masks easily fit into just 8 bits each, so we can
> safely use (always 32-bit) *unsigned int* variables instead. This saves
> 745 bytes of object code in libata-core.o alone, not to mention LLDDs...
>
> Signed-off-by: Sergey Shtylyov <s.shtylyov@xxxxxx>
Applied to for-5.20. Thanks !
--
Damien Le Moal
Western Digital Research
