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| author | David Gibson <david@gibson.dropbear.id.au> | 2015-02-03 06:36:21 +0100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2015-03-23 04:29:40 +0100 |
| commit | f5718726714cd6114876c4e3ca9b6992ab81176c (patch) | |
| tree | c8cfe34ac28b22e89e8f5aac01c615ac61fbb221 /drivers/scsi/mesh.c | |
| parent | Linux 4.0-rc3 (diff) | |
| download | linux-f5718726714cd6114876c4e3ca9b6992ab81176c.tar.xz linux-f5718726714cd6114876c4e3ca9b6992ab81176c.zip | |
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/mesh.c')
| -rw-r--r-- | drivers/scsi/mesh.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/scsi/mesh.c b/drivers/scsi/mesh.c index 57a95e2c3442..555367f00228 100644 --- a/drivers/scsi/mesh.c +++ b/drivers/scsi/mesh.c @@ -1287,9 +1287,9 @@ static void set_dma_cmds(struct mesh_state *ms, struct scsi_cmnd *cmd) } if (dma_len > 0xffff) panic("mesh: scatterlist element >= 64k"); - st_le16(&dcmds->req_count, dma_len - off); - st_le16(&dcmds->command, dma_cmd); - st_le32(&dcmds->phy_addr, dma_addr + off); + dcmds->req_count = cpu_to_le16(dma_len - off); + dcmds->command = cpu_to_le16(dma_cmd); + dcmds->phy_addr = cpu_to_le32(dma_addr + off); dcmds->xfer_status = 0; ++dcmds; dtot += dma_len - off; @@ -1303,15 +1303,15 @@ static void set_dma_cmds(struct mesh_state *ms, struct scsi_cmnd *cmd) static char mesh_extra_buf[64]; dtot = sizeof(mesh_extra_buf); - st_le16(&dcmds->req_count, dtot); - st_le32(&dcmds->phy_addr, virt_to_phys(mesh_extra_buf)); + dcmds->req_count = cpu_to_le16(dtot); + dcmds->phy_addr = cpu_to_le32(virt_to_phys(mesh_extra_buf)); dcmds->xfer_status = 0; ++dcmds; } dma_cmd += OUTPUT_LAST - OUTPUT_MORE; - st_le16(&dcmds[-1].command, dma_cmd); + dcmds[-1].command = cpu_to_le16(dma_cmd); memset(dcmds, 0, sizeof(*dcmds)); - st_le16(&dcmds->command, DBDMA_STOP); + dcmds->command = cpu_to_le16(DBDMA_STOP); ms->dma_count = dtot; } |