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authorDavid Gibson <david@gibson.dropbear.id.au>2015-02-03 16:36:21 +1100
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2015-03-23 14:29:40 +1100
commitf5718726714cd6114876c4e3ca9b6992ab81176c (patch)
treec8cfe34ac28b22e89e8f5aac01c615ac61fbb221 /drivers/ata
parent9eccca0843205f87c00404b663188b88eb248051 (diff)
downloadlinux-f5718726714cd6114876c4e3ca9b6992ab81176c.tar.bz2
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>
Diffstat (limited to 'drivers/ata')
-rw-r--r--drivers/ata/pata_macio.c10
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);
}