diff options
| author | David Gibson <david@gibson.dropbear.id.au> | 2015-02-03 16:36:21 +1100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2015-03-23 14:29:40 +1100 |
| commit | f5718726714cd6114876c4e3ca9b6992ab81176c (patch) | |
| tree | c8cfe34ac28b22e89e8f5aac01c615ac61fbb221 /drivers/scsi/mac53c94.c | |
| parent | 9eccca0843205f87c00404b663188b88eb248051 (diff) | |
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/scsi/mac53c94.c')
| -rw-r--r-- | drivers/scsi/mac53c94.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/scsi/mac53c94.c b/drivers/scsi/mac53c94.c index e5cd8d8d4ce7..0adb2e015597 100644 --- a/drivers/scsi/mac53c94.c +++ b/drivers/scsi/mac53c94.c @@ -382,16 +382,16 @@ static void set_dma_cmds(struct fsc_state *state, struct scsi_cmnd *cmd) if (dma_len > 0xffff) panic("mac53c94: scatterlist element >= 64k"); total += dma_len; - st_le16(&dcmds->req_count, dma_len); - st_le16(&dcmds->command, dma_cmd); - st_le32(&dcmds->phy_addr, dma_addr); + dcmds->req_count = cpu_to_le16(dma_len); + dcmds->command = cpu_to_le16(dma_cmd); + dcmds->phy_addr = cpu_to_le32(dma_addr); dcmds->xfer_status = 0; ++dcmds; } dma_cmd += OUTPUT_LAST - OUTPUT_MORE; - st_le16(&dcmds[-1].command, dma_cmd); - st_le16(&dcmds->command, DBDMA_STOP); + dcmds[-1].command = cpu_to_le16(dma_cmd); + dcmds->command = cpu_to_le16(DBDMA_STOP); cmd->SCp.this_residual = total; } |