staging: speakup: speakup_dectlk.c: style fixes

* Clean this file based on reports from checkpatch.pl.
* Replace a function-like macro with an inline function.
* Remove an incorrect use of the volatile qualifier.  The
previously-volatile variable is now always protected by a spinlock.

Signed-off-by: Christopher Brannon <chris@the-brannons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/speakup/speakup_dectlk.c b/drivers/staging/speakup/speakup_dectlk.c
index c17e9bc342224b6aa0ccda985729e81f67d1727e..daff3b9a4a6df75e058cc033ffc0d0ae9ca1f2a3 100644 (file)
--- a/drivers/staging/speakup/speakup_dectlk.c
+++ b/drivers/staging/speakup/speakup_dectlk.c
@@ -36,8 +36,12 @@
 #define DRV_VERSION "2.20"
 #define SYNTH_CLEAR 0x03
 #define PROCSPEECH 0x0b
-static volatile int xoff;
-#define synth_full() (xoff)
+static int xoff;
+
+static inline int synth_full(void)
+{
+       return xoff;
+}
 
 static void do_catch_up(struct spk_synth *synth);
 static void synth_flush(struct spk_synth *synth);
@@ -51,14 +55,14 @@ static spinlock_t flush_lock;
 static DECLARE_WAIT_QUEUE_HEAD(flush);
 
 static struct var_t vars[] = {
-       { CAPS_START, .u.s = {"[:dv ap 160] " }},
-       { CAPS_STOP, .u.s = {"[:dv ap 100 ] " }},
-       { RATE, .u.n = {"[:ra %d] ", 180, 75, 650, 0, 0, NULL }},
-       { PITCH, .u.n = {"[:dv ap %d] ", 122, 50, 350, 0, 0, NULL }},
-       { VOL, .u.n = {"[:dv g5 %d] ", 86, 60, 86, 0, 0, NULL }},
-       { PUNCT, .u.n = {"[:pu %c] ", 0, 0, 2, 0, 0, "nsa" }},
-       { VOICE, .u.n = {"[:n%c] ", 0, 0, 9, 0, 0, "phfdburwkv" }},
-       { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL }},
+       { CAPS_START, .u.s = {"[:dv ap 160] " } },
+       { CAPS_STOP, .u.s = {"[:dv ap 100 ] " } },
+       { RATE, .u.n = {"[:ra %d] ", 180, 75, 650, 0, 0, NULL } },
+       { PITCH, .u.n = {"[:dv ap %d] ", 122, 50, 350, 0, 0, NULL } },
+       { VOL, .u.n = {"[:dv g5 %d] ", 86, 60, 86, 0, 0, NULL } },
+       { PUNCT, .u.n = {"[:pu %c] ", 0, 0, 2, 0, 0, "nsa" } },
+       { VOICE, .u.n = {"[:n%c] ", 0, 0, 9, 0, 0, "phfdburwkv" } },
+       { DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
        V_LAST_VAR
 };
 
@@ -160,7 +164,7 @@ static int is_indnum(u_char *ch)
        return 0;
 }
 
-static u_char lastind = 0;
+static u_char lastind;
 
 static unsigned char get_index(void)
 {
@@ -198,7 +202,8 @@ static void read_buff_add(u_char c)
 
 static void do_catch_up(struct spk_synth *synth)
 {
-       static u_char ch = 0;
+       int synth_full_val = 0;
+       static u_char ch;
        static u_char last = '\0';
        unsigned long flags;
        unsigned long jiff_max;
@@ -243,10 +248,11 @@ static void do_catch_up(struct spk_synth *synth)
                ch = synth_buffer_peek();
                set_current_state(TASK_INTERRUPTIBLE);
                delay_time_val = delay_time->u.n.value;
+               synth_full_val = synth_full();
                spk_unlock(flags);
                if (ch == '\n')
                        ch = 0x0D;
-               if (synth_full() || !spk_serial_out(ch)) {
+               if (synth_full_val || !spk_serial_out(ch)) {
                        schedule_timeout(msecs_to_jiffies(delay_time_val));
                        continue;
                }
@@ -262,13 +268,14 @@ static void do_catch_up(struct spk_synth *synth)
                        if (!in_escape && strchr(",.!?;:", last))
                                spk_serial_out(PROCSPEECH);
                        if (jiffies >= jiff_max) {
-                               if ( ! in_escape )
+                               if (!in_escape)
                                        spk_serial_out(PROCSPEECH);
                                spk_lock(flags);
                                jiffy_delta_val = jiffy_delta->u.n.value;
                                delay_time_val = delay_time->u.n.value;
                                spk_unlock(flags);
-                               schedule_timeout(msecs_to_jiffies(delay_time_val));
+                               schedule_timeout(msecs_to_jiffies
+                                                (delay_time_val));
                                jiff_max = jiffies + jiffy_delta_val;
                        }
                }