forked from Minki/linux
bfin_jtag_comm: clean up printk usage
The original patch garned some feedback and a v2 was posted, but that version seems to have been missed when merging the driver. At any rate, this cleans up the printk usage as suggested by Jiri Slaby. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -8,6 +8,10 @@
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* Licensed under the GPL-2 or later.
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*/
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#define DRV_NAME "bfin-jtag-comm"
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#define DEV_NAME "ttyBFJC"
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#define pr_fmt(fmt) DRV_NAME ": " fmt
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#include <linux/circ_buf.h>
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#include <linux/console.h>
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#include <linux/delay.h>
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@ -22,18 +26,14 @@
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#include <linux/tty_flip.h>
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#include <asm/atomic.h>
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#define pr_init(fmt, args...) ({ static const __initconst char __fmt[] = fmt; printk(__fmt, ## args); })
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/* See the Debug/Emulation chapter in the HRM */
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#define EMUDOF 0x00000001 /* EMUDAT_OUT full & valid */
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#define EMUDIF 0x00000002 /* EMUDAT_IN full & valid */
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#define EMUDOOVF 0x00000004 /* EMUDAT_OUT overflow */
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#define EMUDIOVF 0x00000008 /* EMUDAT_IN overflow */
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#define DRV_NAME "bfin-jtag-comm"
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#define DEV_NAME "ttyBFJC"
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#define pr_init(fmt, args...) ({ static const __initdata char __fmt[] = fmt; printk(__fmt, ## args); })
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#define debug(fmt, args...) pr_debug(DRV_NAME ": " fmt, ## args)
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static inline uint32_t bfin_write_emudat(uint32_t emudat)
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{
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__asm__ __volatile__("emudat = %0;" : : "d"(emudat));
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@ -74,7 +74,7 @@ bfin_jc_emudat_manager(void *arg)
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while (!kthread_should_stop()) {
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/* no one left to give data to, so sleep */
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if (bfin_jc_tty == NULL && circ_empty(&bfin_jc_write_buf)) {
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debug("waiting for readers\n");
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pr_debug("waiting for readers\n");
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__set_current_state(TASK_UNINTERRUPTIBLE);
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schedule();
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__set_current_state(TASK_RUNNING);
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@ -82,7 +82,7 @@ bfin_jc_emudat_manager(void *arg)
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/* no data available, so just chill */
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if (!(bfin_read_DBGSTAT() & EMUDIF) && circ_empty(&bfin_jc_write_buf)) {
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debug("waiting for data (in_len = %i) (circ: %i %i)\n",
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pr_debug("waiting for data (in_len = %i) (circ: %i %i)\n",
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inbound_len, bfin_jc_write_buf.tail, bfin_jc_write_buf.head);
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if (inbound_len)
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schedule();
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@ -99,11 +99,11 @@ bfin_jc_emudat_manager(void *arg)
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if (tty != NULL) {
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uint32_t emudat = bfin_read_emudat();
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if (inbound_len == 0) {
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debug("incoming length: 0x%08x\n", emudat);
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pr_debug("incoming length: 0x%08x\n", emudat);
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inbound_len = emudat;
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} else {
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size_t num_chars = (4 <= inbound_len ? 4 : inbound_len);
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debug(" incoming data: 0x%08x (pushing %zu)\n", emudat, num_chars);
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pr_debug(" incoming data: 0x%08x (pushing %zu)\n", emudat, num_chars);
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inbound_len -= num_chars;
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tty_insert_flip_string(tty, (unsigned char *)&emudat, num_chars);
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tty_flip_buffer_push(tty);
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@ -117,7 +117,7 @@ bfin_jc_emudat_manager(void *arg)
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if (outbound_len == 0) {
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outbound_len = circ_cnt(&bfin_jc_write_buf);
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bfin_write_emudat(outbound_len);
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debug("outgoing length: 0x%08x\n", outbound_len);
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pr_debug("outgoing length: 0x%08x\n", outbound_len);
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} else {
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struct tty_struct *tty;
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int tail = bfin_jc_write_buf.tail;
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@ -136,7 +136,7 @@ bfin_jc_emudat_manager(void *arg)
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if (tty)
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tty_wakeup(tty);
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mutex_unlock(&bfin_jc_tty_mutex);
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debug(" outgoing data: 0x%08x (pushing %zu)\n", emudat, ate);
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pr_debug(" outgoing data: 0x%08x (pushing %zu)\n", emudat, ate);
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}
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}
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}
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@ -149,7 +149,7 @@ static int
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bfin_jc_open(struct tty_struct *tty, struct file *filp)
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{
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mutex_lock(&bfin_jc_tty_mutex);
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debug("open %lu\n", bfin_jc_count);
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pr_debug("open %lu\n", bfin_jc_count);
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++bfin_jc_count;
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bfin_jc_tty = tty;
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wake_up_process(bfin_jc_kthread);
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@ -161,7 +161,7 @@ static void
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bfin_jc_close(struct tty_struct *tty, struct file *filp)
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{
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mutex_lock(&bfin_jc_tty_mutex);
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debug("close %lu\n", bfin_jc_count);
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pr_debug("close %lu\n", bfin_jc_count);
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if (--bfin_jc_count == 0)
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bfin_jc_tty = NULL;
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wake_up_process(bfin_jc_kthread);
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@ -174,7 +174,7 @@ bfin_jc_circ_write(const unsigned char *buf, int count)
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{
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int i;
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count = min(count, circ_free(&bfin_jc_write_buf));
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debug("going to write chunk of %i bytes\n", count);
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pr_debug("going to write chunk of %i bytes\n", count);
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for (i = 0; i < count; ++i)
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circ_byte(&bfin_jc_write_buf, bfin_jc_write_buf.head + i) = buf[i];
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bfin_jc_write_buf.head += i;
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