powerpc: Move Power Macintosh drivers to generic byteswappers

ppc has special instruction forms to efficiently load and store values
in non-native endianness.  These can be accessed via the arch-specific
{ld,st}_le{16,32}() inlines in arch/powerpc/include/asm/swab.h.

However, gcc is perfectly capable of generating the byte-reversing
load/store instructions when using the normal, generic cpu_to_le*() and
le*_to_cpu() functions eaning the arch-specific functions don't have much
point.

Worse the "le" in the names of the arch specific functions is now
misleading, because they always generate byte-reversing forms, but some
ppc machines can now run a little-endian kernel.

To start getting rid of the arch-specific forms, this patch removes them
from all the old Power Macintosh drivers, replacing them with the
generic byteswappers.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 5 insertions, 5 deletions

diff --git a/drivers/ata/pata_macio.c b/drivers/ata/pata_macio.c
index a02f76fdcfcd..b0028588ff1c 100644
--- a/drivers/ata/pata_macio.c
+++ b/drivers/ata/pata_macio.c
@@ -540,9 +540,9 @@ static void pata_macio_qc_prep(struct ata_queued_cmd *qc)
                         BUG_ON (pi++ >= MAX_DCMDS);
 
                         len = (sg_len < MAX_DBDMA_SEG) ? sg_len : MAX_DBDMA_SEG;
-                        st_le16(&table->command, write ? OUTPUT_MORE: INPUT_MORE);
-                        st_le16(&table->req_count, len);
-                        st_le32(&table->phy_addr, addr);
+                        table->command = cpu_to_le16(write ? OUTPUT_MORE: INPUT_MORE);
+                        table->req_count = cpu_to_le16(len);
+                        table->phy_addr = cpu_to_le32(addr);
                         table->cmd_dep = 0;
                         table->xfer_status = 0;
                         table->res_count = 0;
@@ -557,12 +557,12 @@ static void pata_macio_qc_prep(struct ata_queued_cmd *qc)
 
         /* Convert the last command to an input/output */
         table--;
-        st_le16(&table->command, write ? OUTPUT_LAST: INPUT_LAST);
+        table->command = cpu_to_le16(write ? OUTPUT_LAST: INPUT_LAST);
         table++;
 
         /* Add the stop command to the end of the list */
         memset(table, 0, sizeof(struct dbdma_cmd));
-        st_le16(&table->command, DBDMA_STOP);
+        table->command = cpu_to_le16(DBDMA_STOP);
 
         dev_dbgdma(priv->dev, "%s: %d DMA list entries\n", __func__, pi);
 }