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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-03-31 20:15:21 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-03-31 20:15:21 +0200 |
| commit | 11998b316173f814698f9037ce9179d634d1f423 (patch) | |
| tree | 468bc633384c3bb4cd32754fd853c07fcd54afbc /drivers/ide/pmac.c | |
| parent | 8a4a5738ba499083cf4c5668895efe220b1946d3 (diff) | |
| download | lwn-11998b316173f814698f9037ce9179d634d1f423.tar.gz lwn-11998b316173f814698f9037ce9179d634d1f423.zip | |
ide: move ide_map_sg() call out of ->dma_setup method (take 2)
Move ide_map_sg() call from ->dma_setup implementations and
ide_destroy_dmatable() one from *_build_dmatable() to ide_dma_prepare().
There should be no functional changes caused by this patch.
Sergei:
Removed 'use_pio_instead' labels and replaced 'goto' with 'return 0' --
that required no changes to the follow-up patches...
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/pmac.c')
| -rw-r--r-- | drivers/ide/pmac.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/drivers/ide/pmac.c b/drivers/ide/pmac.c index 5643a8b957bf..1df7b7636453 100644 --- a/drivers/ide/pmac.c +++ b/drivers/ide/pmac.c @@ -1455,7 +1455,7 @@ static int pmac_ide_build_dmatable(ide_drive_t *drive, struct ide_cmd *cmd) "switching to PIO on Ohare chipset\n", drive->name); pmif->broken_dma_warn = 1; } - goto use_pio_instead; + return 0; } while (cur_len) { unsigned int tc = (cur_len < 0xfe00)? cur_len: 0xfe00; @@ -1463,7 +1463,7 @@ static int pmac_ide_build_dmatable(ide_drive_t *drive, struct ide_cmd *cmd) if (count++ >= MAX_DCMDS) { printk(KERN_WARNING "%s: DMA table too small\n", drive->name); - goto use_pio_instead; + return 0; } st_le16(&table->command, wr? OUTPUT_MORE: INPUT_MORE); st_le16(&table->req_count, tc); @@ -1492,9 +1492,6 @@ static int pmac_ide_build_dmatable(ide_drive_t *drive, struct ide_cmd *cmd) printk(KERN_DEBUG "%s: empty DMA table?\n", drive->name); -use_pio_instead: - ide_destroy_dmatable(drive); - return 0; /* revert to PIO for this request */ } @@ -1510,10 +1507,8 @@ static int pmac_ide_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd) u8 unit = drive->dn & 1, ata4 = (pmif->kind == controller_kl_ata4); u8 write = !!(cmd->tf_flags & IDE_TFLAG_WRITE); - if (pmac_ide_build_dmatable(drive, cmd) == 0) { - ide_map_sg(drive, cmd); + if (pmac_ide_build_dmatable(drive, cmd) == 0) return 1; - } /* Apple adds 60ns to wrDataSetup on reads */ if (ata4 && (pmif->timings[unit] & TR_66_UDMA_EN)) { |