diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2018-06-06 15:09:53 -0400 |
|---|---|---|
| committer | John Snow <jsnow@redhat.com> | 2018-06-08 13:36:31 -0400 |
| commit | 882941a5680db4d3e247a089126be23181ae13fd (patch) | |
| tree | ecfb9150a19b97e19c904ad5d992803385e71092 /hw | |
| parent | ee4cd662addd2ef51c5bc33e57f7fc6cdee830a0 (diff) | |
ide: make ide_transfer_stop idempotent
There is code checking s->end_transfer_func and it was not taught about
ide_transfer_cancel. We can just use ide_transfer_stop because
s->end_transfer_func is only ever called in the DRQ phase.
ide_transfer_cancel can then be removed, since it would just be
calling ide_transfer_halt.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20180606190955.20845-6-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/ide/core.c | 14 |
1 files changed, 4 insertions, 10 deletions
diff --git a/hw/ide/core.c b/hw/ide/core.c index 54799ea6fb..9c4864ae54 100644 --- a/hw/ide/core.c +++ b/hw/ide/core.c @@ -547,10 +547,9 @@ static void ide_cmd_done(IDEState *s) } } -static void ide_transfer_halt(IDEState *s, - void(*end_transfer_func)(IDEState *)) +static void ide_transfer_halt(IDEState *s) { - s->end_transfer_func = end_transfer_func; + s->end_transfer_func = ide_transfer_stop; s->data_ptr = s->io_buffer; s->data_end = s->io_buffer; s->status &= ~DRQ_STAT; @@ -558,15 +557,10 @@ static void ide_transfer_halt(IDEState *s, void ide_transfer_stop(IDEState *s) { - ide_transfer_halt(s, ide_transfer_stop); + ide_transfer_halt(s); ide_cmd_done(s); } -static void ide_transfer_cancel(IDEState *s) -{ - ide_transfer_halt(s, ide_transfer_cancel); -} - int64_t ide_get_sector(IDEState *s) { int64_t sector_num; @@ -1361,7 +1355,7 @@ static bool cmd_nop(IDEState *s, uint8_t cmd) static bool cmd_device_reset(IDEState *s, uint8_t cmd) { /* Halt PIO (in the DRQ phase), then DMA */ - ide_transfer_cancel(s); + ide_transfer_halt(s); ide_cancel_dma_sync(s); /* Reset any PIO commands, reset signature, etc */ |