Hello, I wrote:
Handling of the trailing byte in ata_sff_data_xfer() is suboptimal
bacause:
- it always initializes the padding buffer to 0 which is not really
needed in
both the read and write cases;
- it has to use memcpy() to transfer a single byte from/to the padding
buffer;
- it uses io{read|write}16() accessors which swap bytes on the big
endian CPUs
and so have to additionally convert the data from/to the little
endian format
instead of using io{read|write}16_rep() accessors which are not
supposed to
change the byte ordering.
Signed-off-by: Sergei Shtylyov <sshtylyov@xxxxxxxxxxxxx>
Jeff, have you forgotten about this one?
PING.
MBR, Sergei
--
To unsubscribe from this list: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
