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Subject[patch 2/7] staging: speakup: spk_serial_out and spk_wait_for_xmitr to take synth arg
These two functions are always called from a context where spk_synth instance
is available. They also use the spk_synth instance but instead of taking it
as an argument, they rely on a global spk_synth instance inside synth.c which
points to the same synth as the one being passed in as argument.

Signed-off-by: Okash Khawaja <okash.khawaja@gmail.com>

Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>

Index: linux-4.10.1/drivers/staging/speakup/serialio.c
===================================================================
--- linux-4.10.1.orig/drivers/staging/speakup/serialio.c
+++ linux-4.10.1/drivers/staging/speakup/serialio.c
@@ -144,14 +144,14 @@
free_irq(serstate->irq, (void *)synth_readbuf_handler);
}

-int spk_wait_for_xmitr(void)
+int spk_wait_for_xmitr(struct spk_synth *in_synth)
{
int tmout = SPK_XMITR_TIMEOUT;

- if ((synth->alive) && (timeouts >= NUM_DISABLE_TIMEOUTS)) {
+ if ((in_synth->alive) && (timeouts >= NUM_DISABLE_TIMEOUTS)) {
pr_warn("%s: too many timeouts, deactivating speakup\n",
- synth->long_name);
- synth->alive = 0;
+ in_synth->long_name);
+ in_synth->alive = 0;
/* No synth any more, so nobody will restart TTYs, and we thus
* need to do it ourselves. Now that there is no synth we can
* let application flood anyway
@@ -162,7 +162,7 @@
}
while (spk_serial_tx_busy()) {
if (--tmout == 0) {
- pr_warn("%s: timed out (tx busy)\n", synth->long_name);
+ pr_warn("%s: timed out (tx busy)\n", in_synth->long_name);
timeouts++;
return 0;
}
@@ -207,9 +207,9 @@
}
EXPORT_SYMBOL_GPL(spk_serial_in_nowait);

-int spk_serial_out(const char ch)
+int spk_serial_out(struct spk_synth *in_synth, const char ch)
{
- if (synth->alive && spk_wait_for_xmitr()) {
+ if (in_synth->alive && spk_wait_for_xmitr(in_synth)) {
outb_p(ch, speakup_info.port_tts);
return 1;
}
Index: linux-4.10.1/drivers/staging/speakup/speakup_apollo.c
===================================================================
--- linux-4.10.1.orig/drivers/staging/speakup/speakup_apollo.c
+++ linux-4.10.1/drivers/staging/speakup/speakup_apollo.c
@@ -169,7 +169,7 @@
set_current_state(TASK_INTERRUPTIBLE);
full_time_val = full_time->u.n.value;
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
- if (!spk_serial_out(ch)) {
+ if (!spk_serial_out(synth, ch)) {
outb(UART_MCR_DTR, speakup_info.port_tts + UART_MCR);
outb(UART_MCR_DTR | UART_MCR_RTS,
speakup_info.port_tts + UART_MCR);
@@ -182,7 +182,7 @@
full_time_val = full_time->u.n.value;
delay_time_val = delay_time->u.n.value;
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
- if (spk_serial_out(synth->procspeech))
+ if (spk_serial_out(synth, synth->procspeech))
schedule_timeout(msecs_to_jiffies
(delay_time_val));
else
@@ -195,7 +195,7 @@
synth_buffer_getc();
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
}
- spk_serial_out(PROCSPEECH);
+ spk_serial_out(synth, PROCSPEECH);
}

module_param_named(ser, synth_apollo.ser, int, S_IRUGO);
Index: linux-4.10.1/drivers/staging/speakup/speakup_audptr.c
===================================================================
--- linux-4.10.1.orig/drivers/staging/speakup/speakup_audptr.c
+++ linux-4.10.1/drivers/staging/speakup/speakup_audptr.c
@@ -135,7 +135,7 @@
udelay(1);
}
outb(SYNTH_CLEAR, speakup_info.port_tts);
- spk_serial_out(PROCSPEECH);
+ spk_serial_out(synth, PROCSPEECH);
}

static void synth_version(struct spk_synth *synth)
Index: linux-4.10.1/drivers/staging/speakup/speakup_decext.c
===================================================================
--- linux-4.10.1.orig/drivers/staging/speakup/speakup_decext.c
+++ linux-4.10.1/drivers/staging/speakup/speakup_decext.c
@@ -186,7 +186,7 @@
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
if (ch == '\n')
ch = 0x0D;
- if (synth_full() || !spk_serial_out(ch)) {
+ if (synth_full() || !spk_serial_out(synth, ch)) {
schedule_timeout(msecs_to_jiffies(delay_time_val));
continue;
}
@@ -200,10 +200,10 @@
in_escape = 0;
else if (ch <= SPACE) {
if (!in_escape && strchr(",.!?;:", last))
- spk_serial_out(PROCSPEECH);
+ spk_serial_out(synth, PROCSPEECH);
if (time_after_eq(jiffies, jiff_max)) {
if (!in_escape)
- spk_serial_out(PROCSPEECH);
+ spk_serial_out(synth, PROCSPEECH);
spin_lock_irqsave(&speakup_info.spinlock,
flags);
jiffy_delta_val = jiffy_delta->u.n.value;
@@ -218,7 +218,7 @@
last = ch;
}
if (!in_escape)
- spk_serial_out(PROCSPEECH);
+ spk_serial_out(synth, PROCSPEECH);
}

static void synth_flush(struct spk_synth *synth)
Index: linux-4.10.1/drivers/staging/speakup/speakup_dectlk.c
===================================================================
--- linux-4.10.1.orig/drivers/staging/speakup/speakup_dectlk.c
+++ linux-4.10.1/drivers/staging/speakup/speakup_dectlk.c
@@ -251,7 +251,7 @@
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
if (ch == '\n')
ch = 0x0D;
- if (synth_full_val || !spk_serial_out(ch)) {
+ if (synth_full_val || !spk_serial_out(synth, ch)) {
schedule_timeout(msecs_to_jiffies(delay_time_val));
continue;
}
@@ -265,10 +265,10 @@
in_escape = 0;
else if (ch <= SPACE) {
if (!in_escape && strchr(",.!?;:", last))
- spk_serial_out(PROCSPEECH);
+ spk_serial_out(synth, PROCSPEECH);
if (time_after_eq(jiffies, jiff_max)) {
if (!in_escape)
- spk_serial_out(PROCSPEECH);
+ spk_serial_out(synth, PROCSPEECH);
spin_lock_irqsave(&speakup_info.spinlock,
flags);
jiffy_delta_val = jiffy_delta->u.n.value;
@@ -283,17 +283,17 @@
last = ch;
}
if (!in_escape)
- spk_serial_out(PROCSPEECH);
+ spk_serial_out(synth, PROCSPEECH);
}

static void synth_flush(struct spk_synth *synth)
{
if (in_escape)
/* if in command output ']' so we don't get an error */
- spk_serial_out(']');
+ spk_serial_out(synth, ']');
in_escape = 0;
is_flushing = 1;
- spk_serial_out(SYNTH_CLEAR);
+ spk_serial_out(synth, SYNTH_CLEAR);
}

module_param_named(ser, synth_dectlk.ser, int, S_IRUGO);
Index: linux-4.10.1/drivers/staging/speakup/spk_priv.h
===================================================================
--- linux-4.10.1.orig/drivers/staging/speakup/spk_priv.h
+++ linux-4.10.1/drivers/staging/speakup/spk_priv.h
@@ -42,10 +42,10 @@

const struct old_serial_port *spk_serial_init(int index);
void spk_stop_serial_interrupt(void);
-int spk_wait_for_xmitr(void);
+int spk_wait_for_xmitr(struct spk_synth *in_synth);
unsigned char spk_serial_in(void);
unsigned char spk_serial_in_nowait(void);
-int spk_serial_out(const char ch);
+int spk_serial_out(struct spk_synth *in_synth, const char ch);
void spk_serial_release(void);

void synth_buffer_skip_nonlatin1(void);
Index: linux-4.10.1/drivers/staging/speakup/synth.c
===================================================================
--- linux-4.10.1.orig/drivers/staging/speakup/synth.c
+++ linux-4.10.1/drivers/staging/speakup/synth.c
@@ -120,7 +120,7 @@
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
if (ch == '\n')
ch = synth->procspeech;
- if (!spk_serial_out(ch)) {
+ if (!spk_serial_out(synth, ch)) {
schedule_timeout(msecs_to_jiffies(full_time_val));
continue;
}
@@ -130,7 +130,7 @@
delay_time_val = delay_time->u.n.value;
full_time_val = full_time->u.n.value;
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
- if (spk_serial_out(synth->procspeech))
+ if (spk_serial_out(synth, synth->procspeech))
schedule_timeout(
msecs_to_jiffies(delay_time_val));
else
@@ -143,7 +143,7 @@
synth_buffer_getc();
spin_unlock_irqrestore(&speakup_info.spinlock, flags);
}
- spk_serial_out(synth->procspeech);
+ spk_serial_out(synth, synth->procspeech);
}
EXPORT_SYMBOL_GPL(spk_do_catch_up);

@@ -154,7 +154,7 @@
while ((ch = *buff)) {
if (ch == '\n')
ch = synth->procspeech;
- if (spk_wait_for_xmitr())
+ if (spk_wait_for_xmitr(synth))
outb(ch, speakup_info.port_tts);
else
return buff;
@@ -166,7 +166,7 @@

void spk_synth_flush(struct spk_synth *synth)
{
- spk_serial_out(synth->clear);
+ spk_serial_out(synth, synth->clear);
}
EXPORT_SYMBOL_GPL(spk_synth_flush);

@@ -181,7 +181,7 @@
{
if (synth->alive)
return 1;
- if (spk_wait_for_xmitr() > 0) {
+ if (spk_wait_for_xmitr(synth) > 0) {
/* restart */
synth->alive = 1;
synth_printf("%s", synth->init);
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