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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Al Viro
2008-03-25 05:18:11 +00:00
committed by Jeff Garzik
父節點 9c0bf67505
當前提交 826cd156de
共有 3 個文件被更改，包括 8 次插入 和 8 次删除
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12
drivers/ata/pata_scc.c
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@@ -782,28 +782,28 @@ static unsigned int scc_data_xfer (struct ata_device *dev, unsigned char *buf,
struct ata_port *ap = dev->link->ap;
unsigned int words = buflen >> 1;
unsigned int i;
u16 *buf16 = (u16 *) buf;
__le16 *buf16 = (__le16 *) buf;
void __iomem *mmio = ap->ioaddr.data_addr;
/* Transfer multiple of 2 bytes */
if (rw == READ)
for (i = 0; i < words; i++)
buf16[i] = le16_to_cpu(in_be32(mmio));
buf16[i] = cpu_to_le16(in_be32(mmio));
else
for (i = 0; i < words; i++)
out_be32(mmio, cpu_to_le16(buf16[i]));
out_be32(mmio, le16_to_cpu(buf16[i]));
/* Transfer trailing 1 byte, if any. */
if (unlikely(buflen & 0x01)) {
u16 align_buf[1] = { 0 };
__le16 align_buf[1] = { 0 };
unsigned char *trailing_buf = buf + buflen - 1;
if (rw == READ) {
align_buf[0] = le16_to_cpu(in_be32(mmio));
align_buf[0] = cpu_to_le16(in_be32(mmio));
memcpy(trailing_buf, align_buf, 1);
} else {
memcpy(align_buf, trailing_buf, 1);
out_be32(mmio, cpu_to_le16(align_buf[0]));
out_be32(mmio, le16_to_cpu(align_buf[0]));
}
words++;
}