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authorDavid Gibson <david@gibson.dropbear.id.au>2015-02-03 08:36:21 +0300
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2015-03-23 06:29:40 +0300
commitf5718726714cd6114876c4e3ca9b6992ab81176c (patch)
treec8cfe34ac28b22e89e8f5aac01c615ac61fbb221 /drivers/scsi/mac53c94.c
parent9eccca0843205f87c00404b663188b88eb248051 (diff)
downloadlinux-f5718726714cd6114876c4e3ca9b6992ab81176c.tar.xz
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.c10
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;
}