From: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx> [ Upstream commit 2b86d9b8ec6efb86fc5ea44f2d49b1df17f699a1 ] This was missed while introducing the tty-based serial access. The only remaining use of wait_for_xmitr with tty-based access is in spk_synth_is_alive_restart to check whether the synth can be restarted. With tty-based this is up to the tty layer to cope with the buffering etc. so we can just say yes. Signed-off-by: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx> Link: https://lore.kernel.org/r/20200804160637.x3iycau5izywbgzl@function Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/staging/speakup/serialio.c | 8 +++++--- drivers/staging/speakup/spk_priv.h | 1 - drivers/staging/speakup/spk_ttyio.c | 7 +++++++ drivers/staging/speakup/spk_types.h | 1 + drivers/staging/speakup/synth.c | 2 +- 5 files changed, 14 insertions(+), 5 deletions(-) diff --git a/drivers/staging/speakup/serialio.c b/drivers/staging/speakup/serialio.c index 177a2988641c1..403b01d66367e 100644 --- a/drivers/staging/speakup/serialio.c +++ b/drivers/staging/speakup/serialio.c @@ -32,6 +32,7 @@ static void spk_serial_tiocmset(unsigned int set, unsigned int clear); static unsigned char spk_serial_in(void); static unsigned char spk_serial_in_nowait(void); static void spk_serial_flush_buffer(void); +static int spk_serial_wait_for_xmitr(struct spk_synth *in_synth); struct spk_io_ops spk_serial_io_ops = { .synth_out = spk_serial_out, @@ -40,6 +41,7 @@ struct spk_io_ops spk_serial_io_ops = { .synth_in = spk_serial_in, .synth_in_nowait = spk_serial_in_nowait, .flush_buffer = spk_serial_flush_buffer, + .wait_for_xmitr = spk_serial_wait_for_xmitr, }; EXPORT_SYMBOL_GPL(spk_serial_io_ops); @@ -211,7 +213,7 @@ void spk_stop_serial_interrupt(void) } EXPORT_SYMBOL_GPL(spk_stop_serial_interrupt); -int spk_wait_for_xmitr(struct spk_synth *in_synth) +static int spk_serial_wait_for_xmitr(struct spk_synth *in_synth) { int tmout = SPK_XMITR_TIMEOUT; @@ -280,7 +282,7 @@ static void spk_serial_flush_buffer(void) static int spk_serial_out(struct spk_synth *in_synth, const char ch) { - if (in_synth->alive && spk_wait_for_xmitr(in_synth)) { + if (in_synth->alive && spk_serial_wait_for_xmitr(in_synth)) { outb_p(ch, speakup_info.port_tts); return 1; } @@ -295,7 +297,7 @@ const char *spk_serial_synth_immediate(struct spk_synth *synth, while ((ch = *buff)) { if (ch == '\n') ch = synth->procspeech; - if (spk_wait_for_xmitr(synth)) + if (spk_serial_wait_for_xmitr(synth)) outb(ch, speakup_info.port_tts); else return buff; diff --git a/drivers/staging/speakup/spk_priv.h b/drivers/staging/speakup/spk_priv.h index c75b408387947..0f4bcbe5ddb93 100644 --- a/drivers/staging/speakup/spk_priv.h +++ b/drivers/staging/speakup/spk_priv.h @@ -34,7 +34,6 @@ const struct old_serial_port *spk_serial_init(int index); void spk_stop_serial_interrupt(void); -int spk_wait_for_xmitr(struct spk_synth *in_synth); void spk_serial_release(void); void spk_ttyio_release(void); void spk_ttyio_register_ldisc(void); diff --git a/drivers/staging/speakup/spk_ttyio.c b/drivers/staging/speakup/spk_ttyio.c index 9b95f77f92657..a831ff64f8ba5 100644 --- a/drivers/staging/speakup/spk_ttyio.c +++ b/drivers/staging/speakup/spk_ttyio.c @@ -116,6 +116,7 @@ static void spk_ttyio_tiocmset(unsigned int set, unsigned int clear); static unsigned char spk_ttyio_in(void); static unsigned char spk_ttyio_in_nowait(void); static void spk_ttyio_flush_buffer(void); +static int spk_ttyio_wait_for_xmitr(struct spk_synth *in_synth); struct spk_io_ops spk_ttyio_ops = { .synth_out = spk_ttyio_out, @@ -125,6 +126,7 @@ struct spk_io_ops spk_ttyio_ops = { .synth_in = spk_ttyio_in, .synth_in_nowait = spk_ttyio_in_nowait, .flush_buffer = spk_ttyio_flush_buffer, + .wait_for_xmitr = spk_ttyio_wait_for_xmitr, }; EXPORT_SYMBOL_GPL(spk_ttyio_ops); @@ -286,6 +288,11 @@ static void spk_ttyio_tiocmset(unsigned int set, unsigned int clear) mutex_unlock(&speakup_tty_mutex); } +static int spk_ttyio_wait_for_xmitr(struct spk_synth *in_synth) +{ + return 1; +} + static unsigned char ttyio_in(int timeout) { struct spk_ldisc_data *ldisc_data = speakup_tty->disc_data; diff --git a/drivers/staging/speakup/spk_types.h b/drivers/staging/speakup/spk_types.h index d3272c6d199aa..7398f1196e103 100644 --- a/drivers/staging/speakup/spk_types.h +++ b/drivers/staging/speakup/spk_types.h @@ -158,6 +158,7 @@ struct spk_io_ops { unsigned char (*synth_in)(void); unsigned char (*synth_in_nowait)(void); void (*flush_buffer)(void); + int (*wait_for_xmitr)(struct spk_synth *synth); }; struct spk_synth { diff --git a/drivers/staging/speakup/synth.c b/drivers/staging/speakup/synth.c index 3568bfb89912c..ac47dbac72075 100644 --- a/drivers/staging/speakup/synth.c +++ b/drivers/staging/speakup/synth.c @@ -159,7 +159,7 @@ int spk_synth_is_alive_restart(struct spk_synth *synth) { if (synth->alive) return 1; - if (spk_wait_for_xmitr(synth) > 0) { + if (synth->io_ops->wait_for_xmitr(synth) > 0) { /* restart */ synth->alive = 1; synth_printf("%s", synth->init); -- 2.25.1
