[PATCH v2 0/9] pktdvd: Clean up the driver

[PATCH v2 0/9] pktdvd: Clean up the driver

[Andy Shevchenko]

Some cleanups to the recently resurrected driver.

v2:
- added tags (Greg)

Andy Shevchenko (9):
  pktcdvd: Get rid of custom printing macros
  pktcdvd: replace sscanf() by kstrtoul()
  pktcdvd: use sysfs_emit() to instead of scnprintf()
  pktcdvd: Get rid of pkt_seq_show() forward declaration
  pktcdvd: Drop redundant castings for sector_t
  pktcdvd: Use DEFINE_SHOW_ATTRIBUTE() to simplify code
  pktcdvd: Use put_unaligned_be16() and get_unaligned_be16()
  pktcdvd: Get rid of redundant 'else'
  pktcdvd: Sort headers

 drivers/block/pktcdvd.c      | 525 +++++++++++++++++------------------
 include/linux/pktcdvd.h      |   1 -
 include/uapi/linux/pktcdvd.h |   1 +
 3 files changed, 257 insertions(+), 270 deletions(-)

-- 
2.39.1

[PATCH v2 1/9] pktcdvd: Get rid of custom printing macros

[Andy Shevchenko]

We may use traditional dev_*() macros instead of custom ones
provided by the driver.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/block/pktcdvd.c      | 247 ++++++++++++++++++-----------------
 include/linux/pktcdvd.h      |   1 -
 include/uapi/linux/pktcdvd.h |   1 +
 3 files changed, 130 insertions(+), 119 deletions(-)

diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 2f1a92509271..0ec8dc8ee5ed 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -72,22 +72,6 @@
 
 #define DRIVER_NAME	"pktcdvd"
 
-#define pkt_err(pd, fmt, ...)						\
-	pr_err("%s: " fmt, pd->name, ##__VA_ARGS__)
-#define pkt_notice(pd, fmt, ...)					\
-	pr_notice("%s: " fmt, pd->name, ##__VA_ARGS__)
-#define pkt_info(pd, fmt, ...)						\
-	pr_info("%s: " fmt, pd->name, ##__VA_ARGS__)
-
-#define pkt_dbg(level, pd, fmt, ...)					\
-do {									\
-	if (level == 2 && PACKET_DEBUG >= 2)				\
-		pr_notice("%s: %s():" fmt,				\
-			  pd->name, __func__, ##__VA_ARGS__);		\
-	else if (level == 1 && PACKET_DEBUG >= 1)			\
-		pr_notice("%s: " fmt, pd->name, ##__VA_ARGS__);		\
-} while (0)
-
 #define MAX_SPEED 0xffff
 
 static DEFINE_MUTEX(pktcdvd_mutex);
@@ -318,7 +302,7 @@ static void pkt_sysfs_dev_new(struct pktcdvd_device *pd)
 	if (class_pktcdvd) {
 		pd->dev = device_create_with_groups(class_pktcdvd, NULL,
 						    MKDEV(0, 0), pd, pkt_groups,
-						    "%s", pd->name);
+						    "%s", pd->disk->disk_name);
 		if (IS_ERR(pd->dev))
 			pd->dev = NULL;
 	}
@@ -354,7 +338,7 @@ static ssize_t device_map_show(struct class *c, struct class_attribute *attr,
 		if (!pd)
 			continue;
 		n += sprintf(data+n, "%s %u:%u %u:%u\n",
-			pd->name,
+			pd->disk->disk_name,
 			MAJOR(pd->pkt_dev), MINOR(pd->pkt_dev),
 			MAJOR(pd->bdev->bd_dev),
 			MINOR(pd->bdev->bd_dev));
@@ -467,7 +451,7 @@ static void pkt_debugfs_dev_new(struct pktcdvd_device *pd)
 {
 	if (!pkt_debugfs_root)
 		return;
-	pd->dfs_d_root = debugfs_create_dir(pd->name, pkt_debugfs_root);
+	pd->dfs_d_root = debugfs_create_dir(pd->disk->disk_name, pkt_debugfs_root);
 	if (!pd->dfs_d_root)
 		return;
 
@@ -501,9 +485,11 @@ static void pkt_debugfs_cleanup(void)
 
 static void pkt_bio_finished(struct pktcdvd_device *pd)
 {
+	struct device *ddev = disk_to_dev(pd->disk);
+
 	BUG_ON(atomic_read(&pd->cdrw.pending_bios) <= 0);
 	if (atomic_dec_and_test(&pd->cdrw.pending_bios)) {
-		pkt_dbg(2, pd, "queue empty\n");
+		dev_dbg(ddev, "queue empty\n");
 		atomic_set(&pd->iosched.attention, 1);
 		wake_up(&pd->wqueue);
 	}
@@ -734,15 +720,16 @@ static const char *sense_key_string(__u8 index)
 static void pkt_dump_sense(struct pktcdvd_device *pd,
 			   struct packet_command *cgc)
 {
+	struct device *ddev = disk_to_dev(pd->disk);
 	struct scsi_sense_hdr *sshdr = cgc->sshdr;
 
 	if (sshdr)
-		pkt_err(pd, "%*ph - sense %02x.%02x.%02x (%s)\n",
+		dev_err(ddev, "%*ph - sense %02x.%02x.%02x (%s)\n",
 			CDROM_PACKET_SIZE, cgc->cmd,
 			sshdr->sense_key, sshdr->asc, sshdr->ascq,
 			sense_key_string(sshdr->sense_key));
 	else
-		pkt_err(pd, "%*ph - no sense\n", CDROM_PACKET_SIZE, cgc->cmd);
+		dev_err(ddev, "%*ph - no sense\n", CDROM_PACKET_SIZE, cgc->cmd);
 }
 
 /*
@@ -826,6 +813,7 @@ static void pkt_queue_bio(struct pktcdvd_device *pd, struct bio *bio)
  */
 static void pkt_iosched_process_queue(struct pktcdvd_device *pd)
 {
+	struct device *ddev = disk_to_dev(pd->disk);
 
 	if (atomic_read(&pd->iosched.attention) == 0)
 		return;
@@ -853,7 +841,7 @@ static void pkt_iosched_process_queue(struct pktcdvd_device *pd)
 				need_write_seek = 0;
 			if (need_write_seek && reads_queued) {
 				if (atomic_read(&pd->cdrw.pending_bios) > 0) {
-					pkt_dbg(2, pd, "write, waiting\n");
+					dev_dbg(ddev, "write, waiting\n");
 					break;
 				}
 				pkt_flush_cache(pd);
@@ -862,7 +850,7 @@ static void pkt_iosched_process_queue(struct pktcdvd_device *pd)
 		} else {
 			if (!reads_queued && writes_queued) {
 				if (atomic_read(&pd->cdrw.pending_bios) > 0) {
-					pkt_dbg(2, pd, "read, waiting\n");
+					dev_dbg(ddev, "read, waiting\n");
 					break;
 				}
 				pd->iosched.writing = 1;
@@ -909,6 +897,8 @@ static void pkt_iosched_process_queue(struct pktcdvd_device *pd)
  */
 static int pkt_set_segment_merging(struct pktcdvd_device *pd, struct request_queue *q)
 {
+	struct device *ddev = disk_to_dev(pd->disk);
+
 	if ((pd->settings.size << 9) / CD_FRAMESIZE
 	    <= queue_max_segments(q)) {
 		/*
@@ -925,7 +915,7 @@ static int pkt_set_segment_merging(struct pktcdvd_device *pd, struct request_que
 		set_bit(PACKET_MERGE_SEGS, &pd->flags);
 		return 0;
 	} else {
-		pkt_err(pd, "cdrom max_phys_segments too small\n");
+		dev_err(ddev, "cdrom max_phys_segments too small\n");
 		return -EIO;
 	}
 }
@@ -936,7 +926,7 @@ static void pkt_end_io_read(struct bio *bio)
 	struct pktcdvd_device *pd = pkt->pd;
 	BUG_ON(!pd);
 
-	pkt_dbg(2, pd, "bio=%p sec0=%llx sec=%llx err=%d\n",
+	dev_dbg(disk_to_dev(pd->disk), "bio=%p sec0=%llx sec=%llx err=%d\n",
 		bio, (unsigned long long)pkt->sector,
 		(unsigned long long)bio->bi_iter.bi_sector, bio->bi_status);
 
@@ -956,7 +946,7 @@ static void pkt_end_io_packet_write(struct bio *bio)
 	struct pktcdvd_device *pd = pkt->pd;
 	BUG_ON(!pd);
 
-	pkt_dbg(2, pd, "id=%d, err=%d\n", pkt->id, bio->bi_status);
+	dev_dbg(disk_to_dev(pd->disk), "id=%d, err=%d\n", pkt->id, bio->bi_status);
 
 	pd->stats.pkt_ended++;
 
@@ -972,6 +962,7 @@ static void pkt_end_io_packet_write(struct bio *bio)
  */
 static void pkt_gather_data(struct pktcdvd_device *pd, struct packet_data *pkt)
 {
+	struct device *ddev = disk_to_dev(pd->disk);
 	int frames_read = 0;
 	struct bio *bio;
 	int f;
@@ -1000,8 +991,7 @@ static void pkt_gather_data(struct pktcdvd_device *pd, struct packet_data *pkt)
 	spin_unlock(&pkt->lock);
 
 	if (pkt->cache_valid) {
-		pkt_dbg(2, pd, "zone %llx cached\n",
-			(unsigned long long)pkt->sector);
+		dev_dbg(ddev, "zone %llx cached\n", (unsigned long long)pkt->sector);
 		goto out_account;
 	}
 
@@ -1022,8 +1012,8 @@ static void pkt_gather_data(struct pktcdvd_device *pd, struct packet_data *pkt)
 
 		p = (f * CD_FRAMESIZE) / PAGE_SIZE;
 		offset = (f * CD_FRAMESIZE) % PAGE_SIZE;
-		pkt_dbg(2, pd, "Adding frame %d, page:%p offs:%d\n",
-			f, pkt->pages[p], offset);
+		dev_dbg(ddev, "Adding frame %d, page:%p offs:%d\n", f,
+			pkt->pages[p], offset);
 		if (!bio_add_page(bio, pkt->pages[p], CD_FRAMESIZE, offset))
 			BUG();
 
@@ -1033,8 +1023,8 @@ static void pkt_gather_data(struct pktcdvd_device *pd, struct packet_data *pkt)
 	}
 
 out_account:
-	pkt_dbg(2, pd, "need %d frames for zone %llx\n",
-		frames_read, (unsigned long long)pkt->sector);
+	dev_dbg(ddev, "need %d frames for zone %llx\n", frames_read,
+		(unsigned long long)pkt->sector);
 	pd->stats.pkt_started++;
 	pd->stats.secs_rg += frames_read * (CD_FRAMESIZE >> 9);
 }
@@ -1068,17 +1058,18 @@ static void pkt_put_packet_data(struct pktcdvd_device *pd, struct packet_data *p
 	}
 }
 
-static inline void pkt_set_state(struct packet_data *pkt, enum packet_data_state state)
+static inline void pkt_set_state(struct device *ddev, struct packet_data *pkt,
+				 enum packet_data_state state)
 {
-#if PACKET_DEBUG > 1
 	static const char *state_name[] = {
 		"IDLE", "WAITING", "READ_WAIT", "WRITE_WAIT", "RECOVERY", "FINISHED"
 	};
 	enum packet_data_state old_state = pkt->state;
-	pkt_dbg(2, pd, "pkt %2d : s=%6llx %s -> %s\n",
+
+	dev_dbg(ddev, "pkt %2d : s=%6llx %s -> %s\n",
 		pkt->id, (unsigned long long)pkt->sector,
 		state_name[old_state], state_name[state]);
-#endif
+
 	pkt->state = state;
 }
 
@@ -1088,6 +1079,7 @@ static inline void pkt_set_state(struct packet_data *pkt, enum packet_data_state
  */
 static int pkt_handle_queue(struct pktcdvd_device *pd)
 {
+	struct device *ddev = disk_to_dev(pd->disk);
 	struct packet_data *pkt, *p;
 	struct bio *bio = NULL;
 	sector_t zone = 0; /* Suppress gcc warning */
@@ -1097,7 +1089,7 @@ static int pkt_handle_queue(struct pktcdvd_device *pd)
 	atomic_set(&pd->scan_queue, 0);
 
 	if (list_empty(&pd->cdrw.pkt_free_list)) {
-		pkt_dbg(2, pd, "no pkt\n");
+		dev_dbg(ddev, "no pkt\n");
 		return 0;
 	}
 
@@ -1134,7 +1126,7 @@ static int pkt_handle_queue(struct pktcdvd_device *pd)
 	}
 	spin_unlock(&pd->lock);
 	if (!bio) {
-		pkt_dbg(2, pd, "no bio\n");
+		dev_dbg(ddev, "no bio\n");
 		return 0;
 	}
 
@@ -1150,12 +1142,13 @@ static int pkt_handle_queue(struct pktcdvd_device *pd)
 	 * to this packet.
 	 */
 	spin_lock(&pd->lock);
-	pkt_dbg(2, pd, "looking for zone %llx\n", (unsigned long long)zone);
+	dev_dbg(ddev, "looking for zone %llx\n", (unsigned long long)zone);
 	while ((node = pkt_rbtree_find(pd, zone)) != NULL) {
+		sector_t tmp = get_zone(node->bio->bi_iter.bi_sector, pd);
+
 		bio = node->bio;
-		pkt_dbg(2, pd, "found zone=%llx\n", (unsigned long long)
-			get_zone(bio->bi_iter.bi_sector, pd));
-		if (get_zone(bio->bi_iter.bi_sector, pd) != zone)
+		dev_dbg(ddev, "found zone=%llx\n", (unsigned long long)tmp);
+		if (tmp != zone)
 			break;
 		pkt_rbtree_erase(pd, node);
 		spin_lock(&pkt->lock);
@@ -1174,7 +1167,7 @@ static int pkt_handle_queue(struct pktcdvd_device *pd)
 	spin_unlock(&pd->lock);
 
 	pkt->sleep_time = max(PACKET_WAIT_TIME, 1);
-	pkt_set_state(pkt, PACKET_WAITING_STATE);
+	pkt_set_state(ddev, pkt, PACKET_WAITING_STATE);
 	atomic_set(&pkt->run_sm, 1);
 
 	spin_lock(&pd->cdrw.active_list_lock);
@@ -1226,6 +1219,7 @@ static void bio_list_copy_data(struct bio *dst, struct bio *src)
  */
 static void pkt_start_write(struct pktcdvd_device *pd, struct packet_data *pkt)
 {
+	struct device *ddev = disk_to_dev(pd->disk);
 	int f;
 
 	bio_init(pkt->w_bio, pd->bdev, pkt->w_bio->bi_inline_vecs, pkt->frames,
@@ -1242,7 +1236,7 @@ static void pkt_start_write(struct pktcdvd_device *pd, struct packet_data *pkt)
 		if (!bio_add_page(pkt->w_bio, page, CD_FRAMESIZE, offset))
 			BUG();
 	}
-	pkt_dbg(2, pd, "vcnt=%d\n", pkt->w_bio->bi_vcnt);
+	dev_dbg(ddev, "vcnt=%d\n", pkt->w_bio->bi_vcnt);
 
 	/*
 	 * Fill-in bvec with data from orig_bios.
@@ -1250,11 +1244,11 @@ static void pkt_start_write(struct pktcdvd_device *pd, struct packet_data *pkt)
 	spin_lock(&pkt->lock);
 	bio_list_copy_data(pkt->w_bio, pkt->orig_bios.head);
 
-	pkt_set_state(pkt, PACKET_WRITE_WAIT_STATE);
+	pkt_set_state(ddev, pkt, PACKET_WRITE_WAIT_STATE);
 	spin_unlock(&pkt->lock);
 
-	pkt_dbg(2, pd, "Writing %d frames for zone %llx\n",
-		pkt->write_size, (unsigned long long)pkt->sector);
+	dev_dbg(ddev, "Writing %d frames for zone %llx\n", pkt->write_size,
+		(unsigned long long)pkt->sector);
 
 	if (test_bit(PACKET_MERGE_SEGS, &pd->flags) || (pkt->write_size < pkt->frames))
 		pkt->cache_valid = 1;
@@ -1282,7 +1276,9 @@ static void pkt_finish_packet(struct packet_data *pkt, blk_status_t status)
 
 static void pkt_run_state_machine(struct pktcdvd_device *pd, struct packet_data *pkt)
 {
-	pkt_dbg(2, pd, "pkt %d\n", pkt->id);
+	struct device *ddev = disk_to_dev(pd->disk);
+
+	dev_dbg(ddev, "pkt %d\n", pkt->id);
 
 	for (;;) {
 		switch (pkt->state) {
@@ -1292,7 +1288,7 @@ static void pkt_run_state_machine(struct pktcdvd_device *pd, struct packet_data
 
 			pkt->sleep_time = 0;
 			pkt_gather_data(pd, pkt);
-			pkt_set_state(pkt, PACKET_READ_WAIT_STATE);
+			pkt_set_state(ddev, pkt, PACKET_READ_WAIT_STATE);
 			break;
 
 		case PACKET_READ_WAIT_STATE:
@@ -1300,7 +1296,7 @@ static void pkt_run_state_machine(struct pktcdvd_device *pd, struct packet_data
 				return;
 
 			if (atomic_read(&pkt->io_errors) > 0) {
-				pkt_set_state(pkt, PACKET_RECOVERY_STATE);
+				pkt_set_state(ddev, pkt, PACKET_RECOVERY_STATE);
 			} else {
 				pkt_start_write(pd, pkt);
 			}
@@ -1311,15 +1307,15 @@ static void pkt_run_state_machine(struct pktcdvd_device *pd, struct packet_data
 				return;
 
 			if (!pkt->w_bio->bi_status) {
-				pkt_set_state(pkt, PACKET_FINISHED_STATE);
+				pkt_set_state(ddev, pkt, PACKET_FINISHED_STATE);
 			} else {
-				pkt_set_state(pkt, PACKET_RECOVERY_STATE);
+				pkt_set_state(ddev, pkt, PACKET_RECOVERY_STATE);
 			}
 			break;
 
 		case PACKET_RECOVERY_STATE:
-			pkt_dbg(2, pd, "No recovery possible\n");
-			pkt_set_state(pkt, PACKET_FINISHED_STATE);
+			dev_dbg(ddev, "No recovery possible\n");
+			pkt_set_state(ddev, pkt, PACKET_FINISHED_STATE);
 			break;
 
 		case PACKET_FINISHED_STATE:
@@ -1335,6 +1331,7 @@ static void pkt_run_state_machine(struct pktcdvd_device *pd, struct packet_data
 
 static void pkt_handle_packets(struct pktcdvd_device *pd)
 {
+	struct device *ddev = disk_to_dev(pd->disk);
 	struct packet_data *pkt, *next;
 
 	/*
@@ -1355,7 +1352,7 @@ static void pkt_handle_packets(struct pktcdvd_device *pd)
 		if (pkt->state == PACKET_FINISHED_STATE) {
 			list_del(&pkt->list);
 			pkt_put_packet_data(pd, pkt);
-			pkt_set_state(pkt, PACKET_IDLE_STATE);
+			pkt_set_state(ddev, pkt, PACKET_IDLE_STATE);
 			atomic_set(&pd->scan_queue, 1);
 		}
 	}
@@ -1384,7 +1381,9 @@ static void pkt_count_states(struct pktcdvd_device *pd, int *states)
 static int kcdrwd(void *foobar)
 {
 	struct pktcdvd_device *pd = foobar;
+	struct device *ddev = disk_to_dev(pd->disk);
 	struct packet_data *pkt;
+	int states[PACKET_NUM_STATES];
 	long min_sleep_time, residue;
 
 	set_user_nice(current, MIN_NICE);
@@ -1415,13 +1414,9 @@ static int kcdrwd(void *foobar)
 				goto work_to_do;
 
 			/* Otherwise, go to sleep */
-			if (PACKET_DEBUG > 1) {
-				int states[PACKET_NUM_STATES];
-				pkt_count_states(pd, states);
-				pkt_dbg(2, pd, "i:%d ow:%d rw:%d ww:%d rec:%d fin:%d\n",
-					states[0], states[1], states[2],
-					states[3], states[4], states[5]);
-			}
+			pkt_count_states(pd, states);
+			dev_dbg(ddev, "i:%d ow:%d rw:%d ww:%d rec:%d fin:%d\n",
+				states[0], states[1], states[2], states[3], states[4], states[5]);
 
 			min_sleep_time = MAX_SCHEDULE_TIMEOUT;
 			list_for_each_entry(pkt, &pd->cdrw.pkt_active_list, list) {
@@ -1429,9 +1424,9 @@ static int kcdrwd(void *foobar)
 					min_sleep_time = pkt->sleep_time;
 			}
 
-			pkt_dbg(2, pd, "sleeping\n");
+			dev_dbg(ddev, "sleeping\n");
 			residue = schedule_timeout(min_sleep_time);
-			pkt_dbg(2, pd, "wake up\n");
+			dev_dbg(ddev, "wake up\n");
 
 			/* make swsusp happy with our thread */
 			try_to_freeze();
@@ -1479,7 +1474,7 @@ static int kcdrwd(void *foobar)
 
 static void pkt_print_settings(struct pktcdvd_device *pd)
 {
-	pkt_info(pd, "%s packets, %u blocks, Mode-%c disc\n",
+	dev_info(disk_to_dev(pd->disk), "%s packets, %u blocks, Mode-%c disc\n",
 		 pd->settings.fp ? "Fixed" : "Variable",
 		 pd->settings.size >> 2,
 		 pd->settings.block_mode == 8 ? '1' : '2');
@@ -1607,6 +1602,7 @@ static noinline_for_stack int pkt_get_last_written(struct pktcdvd_device *pd,
  */
 static noinline_for_stack int pkt_set_write_settings(struct pktcdvd_device *pd)
 {
+	struct device *ddev = disk_to_dev(pd->disk);
 	struct packet_command cgc;
 	struct scsi_sense_hdr sshdr;
 	write_param_page *wp;
@@ -1673,7 +1669,7 @@ static noinline_for_stack int pkt_set_write_settings(struct pktcdvd_device *pd)
 		/*
 		 * paranoia
 		 */
-		pkt_err(pd, "write mode wrong %d\n", wp->data_block_type);
+		dev_err(ddev, "write mode wrong %d\n", wp->data_block_type);
 		return 1;
 	}
 	wp->packet_size = cpu_to_be32(pd->settings.size >> 2);
@@ -1694,6 +1690,8 @@ static noinline_for_stack int pkt_set_write_settings(struct pktcdvd_device *pd)
  */
 static int pkt_writable_track(struct pktcdvd_device *pd, track_information *ti)
 {
+	struct device *ddev = disk_to_dev(pd->disk);
+
 	switch (pd->mmc3_profile) {
 		case 0x1a: /* DVD+RW */
 		case 0x12: /* DVD-RAM */
@@ -1718,7 +1716,7 @@ static int pkt_writable_track(struct pktcdvd_device *pd, track_information *ti)
 	if (ti->rt == 1 && ti->blank == 0)
 		return 1;
 
-	pkt_err(pd, "bad state %d-%d-%d\n", ti->rt, ti->blank, ti->packet);
+	dev_err(ddev, "bad state %d-%d-%d\n", ti->rt, ti->blank, ti->packet);
 	return 0;
 }
 
@@ -1727,6 +1725,8 @@ static int pkt_writable_track(struct pktcdvd_device *pd, track_information *ti)
  */
 static int pkt_writable_disc(struct pktcdvd_device *pd, disc_information *di)
 {
+	struct device *ddev = disk_to_dev(pd->disk);
+
 	switch (pd->mmc3_profile) {
 		case 0x0a: /* CD-RW */
 		case 0xffff: /* MMC3 not supported */
@@ -1736,8 +1736,7 @@ static int pkt_writable_disc(struct pktcdvd_device *pd, disc_information *di)
 		case 0x12: /* DVD-RAM */
 			return 1;
 		default:
-			pkt_dbg(2, pd, "Wrong disc profile (%x)\n",
-				pd->mmc3_profile);
+			dev_dbg(ddev, "Wrong disc profile (%x)\n", pd->mmc3_profile);
 			return 0;
 	}
 
@@ -1746,22 +1745,22 @@ static int pkt_writable_disc(struct pktcdvd_device *pd, disc_information *di)
 	 * but i'm not sure, should we leave this to user apps? probably.
 	 */
 	if (di->disc_type == 0xff) {
-		pkt_notice(pd, "unknown disc - no track?\n");
+		dev_notice(ddev, "unknown disc - no track?\n");
 		return 0;
 	}
 
 	if (di->disc_type != 0x20 && di->disc_type != 0) {
-		pkt_err(pd, "wrong disc type (%x)\n", di->disc_type);
+		dev_err(ddev, "wrong disc type (%x)\n", di->disc_type);
 		return 0;
 	}
 
 	if (di->erasable == 0) {
-		pkt_notice(pd, "disc not erasable\n");
+		dev_err(ddev, "disc not erasable\n");
 		return 0;
 	}
 
 	if (di->border_status == PACKET_SESSION_RESERVED) {
-		pkt_err(pd, "can't write to last track (reserved)\n");
+		dev_err(ddev, "can't write to last track (reserved)\n");
 		return 0;
 	}
 
@@ -1770,6 +1769,7 @@ static int pkt_writable_disc(struct pktcdvd_device *pd, disc_information *di)
 
 static noinline_for_stack int pkt_probe_settings(struct pktcdvd_device *pd)
 {
+	struct device *ddev = disk_to_dev(pd->disk);
 	struct packet_command cgc;
 	unsigned char buf[12];
 	disc_information di;
@@ -1787,7 +1787,7 @@ static noinline_for_stack int pkt_probe_settings(struct pktcdvd_device *pd)
 
 	ret = pkt_get_disc_info(pd, &di);
 	if (ret) {
-		pkt_err(pd, "failed get_disc\n");
+		dev_err(ddev, "failed get_disc\n");
 		return ret;
 	}
 
@@ -1799,12 +1799,12 @@ static noinline_for_stack int pkt_probe_settings(struct pktcdvd_device *pd)
 	track = 1; /* (di.last_track_msb << 8) | di.last_track_lsb; */
 	ret = pkt_get_track_info(pd, track, 1, &ti);
 	if (ret) {
-		pkt_err(pd, "failed get_track\n");
+		dev_err(ddev, "failed get_track\n");
 		return ret;
 	}
 
 	if (!pkt_writable_track(pd, &ti)) {
-		pkt_err(pd, "can't write to this track\n");
+		dev_err(ddev, "can't write to this track\n");
 		return -EROFS;
 	}
 
@@ -1814,11 +1814,11 @@ static noinline_for_stack int pkt_probe_settings(struct pktcdvd_device *pd)
 	 */
 	pd->settings.size = be32_to_cpu(ti.fixed_packet_size) << 2;
 	if (pd->settings.size == 0) {
-		pkt_notice(pd, "detected zero packet size!\n");
+		dev_notice(ddev, "detected zero packet size!\n");
 		return -ENXIO;
 	}
 	if (pd->settings.size > PACKET_MAX_SECTORS) {
-		pkt_err(pd, "packet size is too big\n");
+		dev_err(ddev, "packet size is too big\n");
 		return -EROFS;
 	}
 	pd->settings.fp = ti.fp;
@@ -1860,7 +1860,7 @@ static noinline_for_stack int pkt_probe_settings(struct pktcdvd_device *pd)
 			pd->settings.block_mode = PACKET_BLOCK_MODE2;
 			break;
 		default:
-			pkt_err(pd, "unknown data mode\n");
+			dev_err(ddev, "unknown data mode\n");
 			return -EROFS;
 	}
 	return 0;
@@ -1872,6 +1872,7 @@ static noinline_for_stack int pkt_probe_settings(struct pktcdvd_device *pd)
 static noinline_for_stack int pkt_write_caching(struct pktcdvd_device *pd,
 						int set)
 {
+	struct device *ddev = disk_to_dev(pd->disk);
 	struct packet_command cgc;
 	struct scsi_sense_hdr sshdr;
 	unsigned char buf[64];
@@ -1895,10 +1896,10 @@ static noinline_for_stack int pkt_write_caching(struct pktcdvd_device *pd,
 	cgc.buflen = cgc.cmd[8] = 2 + ((buf[0] << 8) | (buf[1] & 0xff));
 	ret = pkt_mode_select(pd, &cgc);
 	if (ret) {
-		pkt_err(pd, "write caching control failed\n");
+		dev_err(ddev, "write caching control failed\n");
 		pkt_dump_sense(pd, &cgc);
 	} else if (!ret && set)
-		pkt_notice(pd, "enabled write caching\n");
+		dev_notice(ddev, "enabled write caching\n");
 	return ret;
 }
 
@@ -1979,6 +1980,7 @@ static char us_clv_to_speed[16] = {
 static noinline_for_stack int pkt_media_speed(struct pktcdvd_device *pd,
 						unsigned *speed)
 {
+	struct device *ddev = disk_to_dev(pd->disk);
 	struct packet_command cgc;
 	struct scsi_sense_hdr sshdr;
 	unsigned char buf[64];
@@ -2013,11 +2015,11 @@ static noinline_for_stack int pkt_media_speed(struct pktcdvd_device *pd,
 	}
 
 	if (!(buf[6] & 0x40)) {
-		pkt_notice(pd, "disc type is not CD-RW\n");
+		dev_notice(ddev, "disc type is not CD-RW\n");
 		return 1;
 	}
 	if (!(buf[6] & 0x4)) {
-		pkt_notice(pd, "A1 values on media are not valid, maybe not CDRW?\n");
+		dev_notice(ddev, "A1 values on media are not valid, maybe not CDRW?\n");
 		return 1;
 	}
 
@@ -2037,25 +2039,26 @@ static noinline_for_stack int pkt_media_speed(struct pktcdvd_device *pd,
 			*speed = us_clv_to_speed[sp];
 			break;
 		default:
-			pkt_notice(pd, "unknown disc sub-type %d\n", st);
+			dev_notice(ddev, "unknown disc sub-type %d\n", st);
 			return 1;
 	}
 	if (*speed) {
-		pkt_info(pd, "maximum media speed: %d\n", *speed);
+		dev_info(ddev, "maximum media speed: %d\n", *speed);
 		return 0;
 	} else {
-		pkt_notice(pd, "unknown speed %d for sub-type %d\n", sp, st);
+		dev_notice(ddev, "unknown speed %d for sub-type %d\n", sp, st);
 		return 1;
 	}
 }
 
 static noinline_for_stack int pkt_perform_opc(struct pktcdvd_device *pd)
 {
+	struct device *ddev = disk_to_dev(pd->disk);
 	struct packet_command cgc;
 	struct scsi_sense_hdr sshdr;
 	int ret;
 
-	pkt_dbg(2, pd, "Performing OPC\n");
+	dev_dbg(ddev, "Performing OPC\n");
 
 	init_cdrom_command(&cgc, NULL, 0, CGC_DATA_NONE);
 	cgc.sshdr = &sshdr;
@@ -2070,18 +2073,19 @@ static noinline_for_stack int pkt_perform_opc(struct pktcdvd_device *pd)
 
 static int pkt_open_write(struct pktcdvd_device *pd)
 {
+	struct device *ddev = disk_to_dev(pd->disk);
 	int ret;
 	unsigned int write_speed, media_write_speed, read_speed;
 
 	ret = pkt_probe_settings(pd);
 	if (ret) {
-		pkt_dbg(2, pd, "failed probe\n");
+		dev_dbg(ddev, "failed probe\n");
 		return ret;
 	}
 
 	ret = pkt_set_write_settings(pd);
 	if (ret) {
-		pkt_dbg(1, pd, "failed saving write settings\n");
+		dev_notice(ddev, "failed saving write settings\n");
 		return -EIO;
 	}
 
@@ -2094,30 +2098,29 @@ static int pkt_open_write(struct pktcdvd_device *pd)
 		case 0x13: /* DVD-RW */
 		case 0x1a: /* DVD+RW */
 		case 0x12: /* DVD-RAM */
-			pkt_dbg(1, pd, "write speed %ukB/s\n", write_speed);
+			dev_notice(ddev, "write speed %ukB/s\n", write_speed);
 			break;
 		default:
 			ret = pkt_media_speed(pd, &media_write_speed);
 			if (ret)
 				media_write_speed = 16;
 			write_speed = min(write_speed, media_write_speed * 177);
-			pkt_dbg(1, pd, "write speed %ux\n", write_speed / 176);
+			dev_notice(ddev, "write speed %ux\n", write_speed / 176);
 			break;
 	}
 	read_speed = write_speed;
 
 	ret = pkt_set_speed(pd, write_speed, read_speed);
 	if (ret) {
-		pkt_dbg(1, pd, "couldn't set write speed\n");
+		dev_notice(ddev, "couldn't set write speed\n");
 		return -EIO;
 	}
 	pd->write_speed = write_speed;
 	pd->read_speed = read_speed;
 
 	ret = pkt_perform_opc(pd);
-	if (ret) {
-		pkt_dbg(1, pd, "Optimum Power Calibration failed\n");
-	}
+	if (ret)
+		dev_notice(ddev, "Optimum Power Calibration failed\n");
 
 	return 0;
 }
@@ -2127,6 +2130,7 @@ static int pkt_open_write(struct pktcdvd_device *pd)
  */
 static int pkt_open_dev(struct pktcdvd_device *pd, fmode_t write)
 {
+	struct device *ddev = disk_to_dev(pd->disk);
 	int ret;
 	long lba;
 	struct request_queue *q;
@@ -2145,7 +2149,7 @@ static int pkt_open_dev(struct pktcdvd_device *pd, fmode_t write)
 
 	ret = pkt_get_last_written(pd, &lba);
 	if (ret) {
-		pkt_err(pd, "pkt_get_last_written failed\n");
+		dev_err(ddev, "pkt_get_last_written failed\n");
 		goto out_putdev;
 	}
 
@@ -2174,11 +2178,11 @@ static int pkt_open_dev(struct pktcdvd_device *pd, fmode_t write)
 
 	if (write) {
 		if (!pkt_grow_pktlist(pd, CONFIG_CDROM_PKTCDVD_BUFFERS)) {
-			pkt_err(pd, "not enough memory for buffers\n");
+			dev_err(ddev, "not enough memory for buffers\n");
 			ret = -ENOMEM;
 			goto out_putdev;
 		}
-		pkt_info(pd, "%lukB available on disc\n", lba << 1);
+		dev_info(ddev, "%lukB available on disc\n", lba << 1);
 	}
 
 	return 0;
@@ -2195,8 +2199,10 @@ static int pkt_open_dev(struct pktcdvd_device *pd, fmode_t write)
  */
 static void pkt_release_dev(struct pktcdvd_device *pd, int flush)
 {
+	struct device *ddev = disk_to_dev(pd->disk);
+
 	if (flush && pkt_flush_cache(pd))
-		pkt_dbg(1, pd, "not flushing cache\n");
+		dev_notice(ddev, "not flushing cache\n");
 
 	pkt_lock_door(pd, 0);
 
@@ -2397,13 +2403,14 @@ static void pkt_make_request_write(struct request_queue *q, struct bio *bio)
 static void pkt_submit_bio(struct bio *bio)
 {
 	struct pktcdvd_device *pd = bio->bi_bdev->bd_disk->queue->queuedata;
+	struct device *ddev = disk_to_dev(pd->disk);
 	struct bio *split;
 
 	bio = bio_split_to_limits(bio);
 	if (!bio)
 		return;
 
-	pkt_dbg(2, pd, "start = %6llx stop = %6llx\n",
+	dev_dbg(ddev, "start = %6llx stop = %6llx\n",
 		(unsigned long long)bio->bi_iter.bi_sector,
 		(unsigned long long)bio_end_sector(bio));
 
@@ -2416,13 +2423,13 @@ static void pkt_submit_bio(struct bio *bio)
 	}
 
 	if (!test_bit(PACKET_WRITABLE, &pd->flags)) {
-		pkt_notice(pd, "WRITE for ro device (%llu)\n",
+		dev_notice(ddev, "WRITE for ro device (%llu)\n",
 			   (unsigned long long)bio->bi_iter.bi_sector);
 		goto end_io;
 	}
 
 	if (!bio->bi_iter.bi_size || (bio->bi_iter.bi_size % CD_FRAMESIZE)) {
-		pkt_err(pd, "wrong bio size\n");
+		dev_err(ddev, "wrong bio size\n");
 		goto end_io;
 	}
 
@@ -2464,7 +2471,7 @@ static int pkt_seq_show(struct seq_file *m, void *p)
 	char *msg;
 	int states[PACKET_NUM_STATES];
 
-	seq_printf(m, "Writer %s mapped to %pg:\n", pd->name, pd->bdev);
+	seq_printf(m, "Writer %s mapped to %pg:\n", pd->disk->disk_name, pd->bdev);
 
 	seq_printf(m, "\nSettings:\n");
 	seq_printf(m, "\tpacket size:\t\t%dkB\n", pd->settings.size / 2);
@@ -2520,12 +2527,13 @@ static int pkt_seq_show(struct seq_file *m, void *p)
 
 static int pkt_new_dev(struct pktcdvd_device *pd, dev_t dev)
 {
+	struct device *ddev = disk_to_dev(pd->disk);
 	int i;
 	struct block_device *bdev;
 	struct scsi_device *sdev;
 
 	if (pd->pkt_dev == dev) {
-		pkt_err(pd, "recursive setup not allowed\n");
+		dev_err(ddev, "recursive setup not allowed\n");
 		return -EBUSY;
 	}
 	for (i = 0; i < MAX_WRITERS; i++) {
@@ -2533,11 +2541,11 @@ static int pkt_new_dev(struct pktcdvd_device *pd, dev_t dev)
 		if (!pd2)
 			continue;
 		if (pd2->bdev->bd_dev == dev) {
-			pkt_err(pd, "%pg already setup\n", pd2->bdev);
+			dev_err(ddev, "%pg already setup\n", pd2->bdev);
 			return -EBUSY;
 		}
 		if (pd2->pkt_dev == dev) {
-			pkt_err(pd, "can't chain pktcdvd devices\n");
+			dev_err(ddev, "can't chain pktcdvd devices\n");
 			return -EBUSY;
 		}
 	}
@@ -2561,14 +2569,14 @@ static int pkt_new_dev(struct pktcdvd_device *pd, dev_t dev)
 	pkt_init_queue(pd);
 
 	atomic_set(&pd->cdrw.pending_bios, 0);
-	pd->cdrw.thread = kthread_run(kcdrwd, pd, "%s", pd->name);
+	pd->cdrw.thread = kthread_run(kcdrwd, pd, "%s", pd->disk->disk_name);
 	if (IS_ERR(pd->cdrw.thread)) {
-		pkt_err(pd, "can't start kernel thread\n");
+		dev_err(ddev, "can't start kernel thread\n");
 		goto out_mem;
 	}
 
-	proc_create_single_data(pd->name, 0, pkt_proc, pkt_seq_show, pd);
-	pkt_dbg(1, pd, "writer mapped to %pg\n", bdev);
+	proc_create_single_data(pd->disk->disk_name, 0, pkt_proc, pkt_seq_show, pd);
+	dev_notice(ddev, "writer mapped to %pg\n", bdev);
 	return 0;
 
 out_mem:
@@ -2581,10 +2589,10 @@ static int pkt_new_dev(struct pktcdvd_device *pd, dev_t dev)
 static int pkt_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd, unsigned long arg)
 {
 	struct pktcdvd_device *pd = bdev->bd_disk->private_data;
+	struct device *ddev = disk_to_dev(pd->disk);
 	int ret;
 
-	pkt_dbg(2, pd, "cmd %x, dev %d:%d\n",
-		cmd, MAJOR(bdev->bd_dev), MINOR(bdev->bd_dev));
+	dev_dbg(ddev, "cmd %x, dev %d:%d\n", cmd, MAJOR(bdev->bd_dev), MINOR(bdev->bd_dev));
 
 	mutex_lock(&pktcdvd_mutex);
 	switch (cmd) {
@@ -2610,7 +2618,7 @@ static int pkt_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd,
 			ret = bdev->bd_disk->fops->ioctl(bdev, mode, cmd, arg);
 		break;
 	default:
-		pkt_dbg(2, pd, "Unknown ioctl (%x)\n", cmd);
+		dev_dbg(ddev, "Unknown ioctl (%x)\n", cmd);
 		ret = -ENOTTY;
 	}
 	mutex_unlock(&pktcdvd_mutex);
@@ -2688,7 +2696,6 @@ static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev)
 	spin_lock_init(&pd->iosched.lock);
 	bio_list_init(&pd->iosched.read_queue);
 	bio_list_init(&pd->iosched.write_queue);
-	sprintf(pd->name, DRIVER_NAME"%d", idx);
 	init_waitqueue_head(&pd->wqueue);
 	pd->bio_queue = RB_ROOT;
 
@@ -2705,7 +2712,7 @@ static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev)
 	disk->minors = 1;
 	disk->fops = &pktcdvd_ops;
 	disk->flags = GENHD_FL_REMOVABLE | GENHD_FL_NO_PART;
-	strcpy(disk->disk_name, pd->name);
+	snprintf(disk->disk_name, sizeof(disk->disk_name), DRIVER_NAME"%d", idx);
 	disk->private_data = pd;
 
 	pd->pkt_dev = MKDEV(pktdev_major, idx);
@@ -2747,6 +2754,7 @@ static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev)
 static int pkt_remove_dev(dev_t pkt_dev)
 {
 	struct pktcdvd_device *pd;
+	struct device *ddev;
 	int idx;
 	int ret = 0;
 
@@ -2767,6 +2775,9 @@ static int pkt_remove_dev(dev_t pkt_dev)
 		ret = -EBUSY;
 		goto out;
 	}
+
+	ddev = disk_to_dev(pd->disk);
+
 	if (!IS_ERR(pd->cdrw.thread))
 		kthread_stop(pd->cdrw.thread);
 
@@ -2777,8 +2788,8 @@ static int pkt_remove_dev(dev_t pkt_dev)
 
 	blkdev_put(pd->bdev, FMODE_READ | FMODE_NDELAY);
 
-	remove_proc_entry(pd->name, pkt_proc);
-	pkt_dbg(1, pd, "writer unmapped\n");
+	remove_proc_entry(pd->disk->disk_name, pkt_proc);
+	dev_notice(ddev, "writer unmapped\n");
 
 	del_gendisk(pd->disk);
 	put_disk(pd->disk);
diff --git a/include/linux/pktcdvd.h b/include/linux/pktcdvd.h
index f9c5ac80d59b..80cb00db42a4 100644
--- a/include/linux/pktcdvd.h
+++ b/include/linux/pktcdvd.h
@@ -156,7 +156,6 @@ struct pktcdvd_device
 {
 	struct block_device	*bdev;		/* dev attached */
 	dev_t			pkt_dev;	/* our dev */
-	char			name[20];
 	struct packet_settings	settings;
 	struct packet_stats	stats;
 	int			refcnt;		/* Open count */
diff --git a/include/uapi/linux/pktcdvd.h b/include/uapi/linux/pktcdvd.h
index 9cbb55d21c94..69121ca7065c 100644
--- a/include/uapi/linux/pktcdvd.h
+++ b/include/uapi/linux/pktcdvd.h
@@ -16,6 +16,7 @@
 #include <linux/types.h>
 
 /*
+ * UNUSED:
  * 1 for normal debug messages, 2 is very verbose. 0 to turn it off.
  */
 #define PACKET_DEBUG		1
-- 
2.39.1

[PATCH v2 2/9] pktcdvd: replace sscanf() by kstrtoul()

[Andy Shevchenko]

The checkpatch.pl warns: "Prefer kstrto<type> to single variable sscanf".
Fix the code accordingly.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/block/pktcdvd.c | 34 ++++++++++++++++++----------------
 1 file changed, 18 insertions(+), 16 deletions(-)

diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 0ec8dc8ee5ed..ad4336ae9927 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -236,15 +236,16 @@ static ssize_t congestion_off_store(struct device *dev,
 				    const char *buf, size_t len)
 {
 	struct pktcdvd_device *pd = dev_get_drvdata(dev);
-	int val;
+	int val, ret;
 
-	if (sscanf(buf, "%d", &val) == 1) {
-		spin_lock(&pd->lock);
-		pd->write_congestion_off = val;
-		init_write_congestion_marks(&pd->write_congestion_off,
-					&pd->write_congestion_on);
-		spin_unlock(&pd->lock);
-	}
+	ret = kstrtoint(buf, 10, &val);
+	if (ret)
+		return ret;
+
+	spin_lock(&pd->lock);
+	pd->write_congestion_off = val;
+	init_write_congestion_marks(&pd->write_congestion_off, &pd->write_congestion_on);
+	spin_unlock(&pd->lock);
 	return len;
 }
 static DEVICE_ATTR_RW(congestion_off);
@@ -266,15 +267,16 @@ static ssize_t congestion_on_store(struct device *dev,
 				   const char *buf, size_t len)
 {
 	struct pktcdvd_device *pd = dev_get_drvdata(dev);
-	int val;
+	int val, ret;
 
-	if (sscanf(buf, "%d", &val) == 1) {
-		spin_lock(&pd->lock);
-		pd->write_congestion_on = val;
-		init_write_congestion_marks(&pd->write_congestion_off,
-					&pd->write_congestion_on);
-		spin_unlock(&pd->lock);
-	}
+	ret = kstrtoint(buf, 10, &val);
+	if (ret)
+		return ret;
+
+	spin_lock(&pd->lock);
+	pd->write_congestion_on = val;
+	init_write_congestion_marks(&pd->write_congestion_off, &pd->write_congestion_on);
+	spin_unlock(&pd->lock);
 	return len;
 }
 static DEVICE_ATTR_RW(congestion_on);
-- 
2.39.1

[PATCH v2 3/9] pktcdvd: use sysfs_emit() to instead of scnprintf()

[Andy Shevchenko]

Follow the advice of the Documentation/filesystems/sysfs.rst and show()
should only use sysfs_emit() or sysfs_emit_at() when formatting the
value to be returned to user space.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/block/pktcdvd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index ad4336ae9927..98a5c388eabf 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -339,7 +339,7 @@ static ssize_t device_map_show(struct class *c, struct class_attribute *attr,
 		struct pktcdvd_device *pd = pkt_devs[idx];
 		if (!pd)
 			continue;
-		n += sprintf(data+n, "%s %u:%u %u:%u\n",
+		n += sysfs_emit_at(data, n, "%s %u:%u %u:%u\n",
 			pd->disk->disk_name,
 			MAJOR(pd->pkt_dev), MINOR(pd->pkt_dev),
 			MAJOR(pd->bdev->bd_dev),
-- 
2.39.1

[PATCH v2 4/9] pktcdvd: Get rid of pkt_seq_show() forward declaration

[Andy Shevchenko]

The code can be neater without forward declarations.
Get rid of pkt_seq_show() forward declaration. This
will also allow futher cleanups to be cleaner.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/block/pktcdvd.c | 151 ++++++++++++++++++++--------------------
 1 file changed, 75 insertions(+), 76 deletions(-)

diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 98a5c388eabf..96db6e348e1e 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -90,7 +90,6 @@ static struct dentry	*pkt_debugfs_root = NULL; /* /sys/kernel/debug/pktcdvd */
 /* forward declaration */
 static int pkt_setup_dev(dev_t dev, dev_t* pkt_dev);
 static int pkt_remove_dev(dev_t pkt_dev);
-static int pkt_seq_show(struct seq_file *m, void *p);
 
 static sector_t get_zone(sector_t sector, struct pktcdvd_device *pd)
 {
@@ -431,6 +430,81 @@ static void pkt_sysfs_cleanup(void)
 
  *******************************************************************/
 
+static void pkt_count_states(struct pktcdvd_device *pd, int *states)
+{
+	struct packet_data *pkt;
+	int i;
+
+	for (i = 0; i < PACKET_NUM_STATES; i++)
+		states[i] = 0;
+
+	spin_lock(&pd->cdrw.active_list_lock);
+	list_for_each_entry(pkt, &pd->cdrw.pkt_active_list, list) {
+		states[pkt->state]++;
+	}
+	spin_unlock(&pd->cdrw.active_list_lock);
+}
+
+static int pkt_seq_show(struct seq_file *m, void *p)
+{
+	struct pktcdvd_device *pd = m->private;
+	char *msg;
+	int states[PACKET_NUM_STATES];
+
+	seq_printf(m, "Writer %s mapped to %pg:\n", pd->disk->disk_name, pd->bdev);
+
+	seq_printf(m, "\nSettings:\n");
+	seq_printf(m, "\tpacket size:\t\t%dkB\n", pd->settings.size / 2);
+
+	if (pd->settings.write_type == 0)
+		msg = "Packet";
+	else
+		msg = "Unknown";
+	seq_printf(m, "\twrite type:\t\t%s\n", msg);
+
+	seq_printf(m, "\tpacket type:\t\t%s\n", pd->settings.fp ? "Fixed" : "Variable");
+	seq_printf(m, "\tlink loss:\t\t%d\n", pd->settings.link_loss);
+
+	seq_printf(m, "\ttrack mode:\t\t%d\n", pd->settings.track_mode);
+
+	if (pd->settings.block_mode == PACKET_BLOCK_MODE1)
+		msg = "Mode 1";
+	else if (pd->settings.block_mode == PACKET_BLOCK_MODE2)
+		msg = "Mode 2";
+	else
+		msg = "Unknown";
+	seq_printf(m, "\tblock mode:\t\t%s\n", msg);
+
+	seq_printf(m, "\nStatistics:\n");
+	seq_printf(m, "\tpackets started:\t%lu\n", pd->stats.pkt_started);
+	seq_printf(m, "\tpackets ended:\t\t%lu\n", pd->stats.pkt_ended);
+	seq_printf(m, "\twritten:\t\t%lukB\n", pd->stats.secs_w >> 1);
+	seq_printf(m, "\tread gather:\t\t%lukB\n", pd->stats.secs_rg >> 1);
+	seq_printf(m, "\tread:\t\t\t%lukB\n", pd->stats.secs_r >> 1);
+
+	seq_printf(m, "\nMisc:\n");
+	seq_printf(m, "\treference count:\t%d\n", pd->refcnt);
+	seq_printf(m, "\tflags:\t\t\t0x%lx\n", pd->flags);
+	seq_printf(m, "\tread speed:\t\t%ukB/s\n", pd->read_speed);
+	seq_printf(m, "\twrite speed:\t\t%ukB/s\n", pd->write_speed);
+	seq_printf(m, "\tstart offset:\t\t%lu\n", pd->offset);
+	seq_printf(m, "\tmode page offset:\t%u\n", pd->mode_offset);
+
+	seq_printf(m, "\nQueue state:\n");
+	seq_printf(m, "\tbios queued:\t\t%d\n", pd->bio_queue_size);
+	seq_printf(m, "\tbios pending:\t\t%d\n", atomic_read(&pd->cdrw.pending_bios));
+	seq_printf(m, "\tcurrent sector:\t\t0x%llx\n", (unsigned long long)pd->current_sector);
+
+	pkt_count_states(pd, states);
+	seq_printf(m, "\tstate:\t\t\ti:%d ow:%d rw:%d ww:%d rec:%d fin:%d\n",
+		   states[0], states[1], states[2], states[3], states[4], states[5]);
+
+	seq_printf(m, "\twrite congestion marks:\toff=%d on=%d\n",
+			pd->write_congestion_off,
+			pd->write_congestion_on);
+	return 0;
+}
+
 static int pkt_debugfs_seq_show(struct seq_file *m, void *p)
 {
 	return pkt_seq_show(m, p);
@@ -1361,21 +1435,6 @@ static void pkt_handle_packets(struct pktcdvd_device *pd)
 	spin_unlock(&pd->cdrw.active_list_lock);
 }
 
-static void pkt_count_states(struct pktcdvd_device *pd, int *states)
-{
-	struct packet_data *pkt;
-	int i;
-
-	for (i = 0; i < PACKET_NUM_STATES; i++)
-		states[i] = 0;
-
-	spin_lock(&pd->cdrw.active_list_lock);
-	list_for_each_entry(pkt, &pd->cdrw.pkt_active_list, list) {
-		states[pkt->state]++;
-	}
-	spin_unlock(&pd->cdrw.active_list_lock);
-}
-
 /*
  * kcdrwd is woken up when writes have been queued for one of our
  * registered devices
@@ -2467,66 +2526,6 @@ static void pkt_init_queue(struct pktcdvd_device *pd)
 	q->queuedata = pd;
 }
 
-static int pkt_seq_show(struct seq_file *m, void *p)
-{
-	struct pktcdvd_device *pd = m->private;
-	char *msg;
-	int states[PACKET_NUM_STATES];
-
-	seq_printf(m, "Writer %s mapped to %pg:\n", pd->disk->disk_name, pd->bdev);
-
-	seq_printf(m, "\nSettings:\n");
-	seq_printf(m, "\tpacket size:\t\t%dkB\n", pd->settings.size / 2);
-
-	if (pd->settings.write_type == 0)
-		msg = "Packet";
-	else
-		msg = "Unknown";
-	seq_printf(m, "\twrite type:\t\t%s\n", msg);
-
-	seq_printf(m, "\tpacket type:\t\t%s\n", pd->settings.fp ? "Fixed" : "Variable");
-	seq_printf(m, "\tlink loss:\t\t%d\n", pd->settings.link_loss);
-
-	seq_printf(m, "\ttrack mode:\t\t%d\n", pd->settings.track_mode);
-
-	if (pd->settings.block_mode == PACKET_BLOCK_MODE1)
-		msg = "Mode 1";
-	else if (pd->settings.block_mode == PACKET_BLOCK_MODE2)
-		msg = "Mode 2";
-	else
-		msg = "Unknown";
-	seq_printf(m, "\tblock mode:\t\t%s\n", msg);
-
-	seq_printf(m, "\nStatistics:\n");
-	seq_printf(m, "\tpackets started:\t%lu\n", pd->stats.pkt_started);
-	seq_printf(m, "\tpackets ended:\t\t%lu\n", pd->stats.pkt_ended);
-	seq_printf(m, "\twritten:\t\t%lukB\n", pd->stats.secs_w >> 1);
-	seq_printf(m, "\tread gather:\t\t%lukB\n", pd->stats.secs_rg >> 1);
-	seq_printf(m, "\tread:\t\t\t%lukB\n", pd->stats.secs_r >> 1);
-
-	seq_printf(m, "\nMisc:\n");
-	seq_printf(m, "\treference count:\t%d\n", pd->refcnt);
-	seq_printf(m, "\tflags:\t\t\t0x%lx\n", pd->flags);
-	seq_printf(m, "\tread speed:\t\t%ukB/s\n", pd->read_speed);
-	seq_printf(m, "\twrite speed:\t\t%ukB/s\n", pd->write_speed);
-	seq_printf(m, "\tstart offset:\t\t%lu\n", pd->offset);
-	seq_printf(m, "\tmode page offset:\t%u\n", pd->mode_offset);
-
-	seq_printf(m, "\nQueue state:\n");
-	seq_printf(m, "\tbios queued:\t\t%d\n", pd->bio_queue_size);
-	seq_printf(m, "\tbios pending:\t\t%d\n", atomic_read(&pd->cdrw.pending_bios));
-	seq_printf(m, "\tcurrent sector:\t\t0x%llx\n", (unsigned long long)pd->current_sector);
-
-	pkt_count_states(pd, states);
-	seq_printf(m, "\tstate:\t\t\ti:%d ow:%d rw:%d ww:%d rec:%d fin:%d\n",
-		   states[0], states[1], states[2], states[3], states[4], states[5]);
-
-	seq_printf(m, "\twrite congestion marks:\toff=%d on=%d\n",
-			pd->write_congestion_off,
-			pd->write_congestion_on);
-	return 0;
-}
-
 static int pkt_new_dev(struct pktcdvd_device *pd, dev_t dev)
 {
 	struct device *ddev = disk_to_dev(pd->disk);
-- 
2.39.1

[PATCH v2 5/9] pktcdvd: Drop redundant castings for sector_t

[Andy Shevchenko]

Since the commit 72deb455b5ec ("block: remove CONFIG_LBDAF")
the sector_t is always 64-bit type, no need to cast anymore.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/block/pktcdvd.c | 26 ++++++++++----------------
 1 file changed, 10 insertions(+), 16 deletions(-)

diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 96db6e348e1e..a53d21dbf2ab 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -493,7 +493,7 @@ static int pkt_seq_show(struct seq_file *m, void *p)
 	seq_printf(m, "\nQueue state:\n");
 	seq_printf(m, "\tbios queued:\t\t%d\n", pd->bio_queue_size);
 	seq_printf(m, "\tbios pending:\t\t%d\n", atomic_read(&pd->cdrw.pending_bios));
-	seq_printf(m, "\tcurrent sector:\t\t0x%llx\n", (unsigned long long)pd->current_sector);
+	seq_printf(m, "\tcurrent sector:\t\t0x%llx\n", pd->current_sector);
 
 	pkt_count_states(pd, states);
 	seq_printf(m, "\tstate:\t\t\ti:%d ow:%d rw:%d ww:%d rec:%d fin:%d\n",
@@ -1003,8 +1003,7 @@ static void pkt_end_io_read(struct bio *bio)
 	BUG_ON(!pd);
 
 	dev_dbg(disk_to_dev(pd->disk), "bio=%p sec0=%llx sec=%llx err=%d\n",
-		bio, (unsigned long long)pkt->sector,
-		(unsigned long long)bio->bi_iter.bi_sector, bio->bi_status);
+		bio, pkt->sector, bio->bi_iter.bi_sector, bio->bi_status);
 
 	if (bio->bi_status)
 		atomic_inc(&pkt->io_errors);
@@ -1067,7 +1066,7 @@ static void pkt_gather_data(struct pktcdvd_device *pd, struct packet_data *pkt)
 	spin_unlock(&pkt->lock);
 
 	if (pkt->cache_valid) {
-		dev_dbg(ddev, "zone %llx cached\n", (unsigned long long)pkt->sector);
+		dev_dbg(ddev, "zone %llx cached\n", pkt->sector);
 		goto out_account;
 	}
 
@@ -1099,8 +1098,7 @@ static void pkt_gather_data(struct pktcdvd_device *pd, struct packet_data *pkt)
 	}
 
 out_account:
-	dev_dbg(ddev, "need %d frames for zone %llx\n", frames_read,
-		(unsigned long long)pkt->sector);
+	dev_dbg(ddev, "need %d frames for zone %llx\n", frames_read, pkt->sector);
 	pd->stats.pkt_started++;
 	pd->stats.secs_rg += frames_read * (CD_FRAMESIZE >> 9);
 }
@@ -1143,8 +1141,7 @@ static inline void pkt_set_state(struct device *ddev, struct packet_data *pkt,
 	enum packet_data_state old_state = pkt->state;
 
 	dev_dbg(ddev, "pkt %2d : s=%6llx %s -> %s\n",
-		pkt->id, (unsigned long long)pkt->sector,
-		state_name[old_state], state_name[state]);
+		pkt->id, pkt->sector, state_name[old_state], state_name[state]);
 
 	pkt->state = state;
 }
@@ -1218,12 +1215,12 @@ static int pkt_handle_queue(struct pktcdvd_device *pd)
 	 * to this packet.
 	 */
 	spin_lock(&pd->lock);
-	dev_dbg(ddev, "looking for zone %llx\n", (unsigned long long)zone);
+	dev_dbg(ddev, "looking for zone %llx\n", zone);
 	while ((node = pkt_rbtree_find(pd, zone)) != NULL) {
 		sector_t tmp = get_zone(node->bio->bi_iter.bi_sector, pd);
 
 		bio = node->bio;
-		dev_dbg(ddev, "found zone=%llx\n", (unsigned long long)tmp);
+		dev_dbg(ddev, "found zone=%llx\n", tmp);
 		if (tmp != zone)
 			break;
 		pkt_rbtree_erase(pd, node);
@@ -1323,8 +1320,7 @@ static void pkt_start_write(struct pktcdvd_device *pd, struct packet_data *pkt)
 	pkt_set_state(ddev, pkt, PACKET_WRITE_WAIT_STATE);
 	spin_unlock(&pkt->lock);
 
-	dev_dbg(ddev, "Writing %d frames for zone %llx\n", pkt->write_size,
-		(unsigned long long)pkt->sector);
+	dev_dbg(ddev, "Writing %d frames for zone %llx\n", pkt->write_size, pkt->sector);
 
 	if (test_bit(PACKET_MERGE_SEGS, &pd->flags) || (pkt->write_size < pkt->frames))
 		pkt->cache_valid = 1;
@@ -2472,8 +2468,7 @@ static void pkt_submit_bio(struct bio *bio)
 		return;
 
 	dev_dbg(ddev, "start = %6llx stop = %6llx\n",
-		(unsigned long long)bio->bi_iter.bi_sector,
-		(unsigned long long)bio_end_sector(bio));
+		bio->bi_iter.bi_sector, bio_end_sector(bio));
 
 	/*
 	 * Clone READ bios so we can have our own bi_end_io callback.
@@ -2484,8 +2479,7 @@ static void pkt_submit_bio(struct bio *bio)
 	}
 
 	if (!test_bit(PACKET_WRITABLE, &pd->flags)) {
-		dev_notice(ddev, "WRITE for ro device (%llu)\n",
-			   (unsigned long long)bio->bi_iter.bi_sector);
+		dev_notice(ddev, "WRITE for ro device (%llu)\n", bio->bi_iter.bi_sector);
 		goto end_io;
 	}
 
-- 
2.39.1

[PATCH v2 6/9] pktcdvd: Use DEFINE_SHOW_ATTRIBUTE() to simplify code

[Andy Shevchenko]

Use DEFINE_SHOW_ATTRIBUTE() helper macro to simplify the code.
No functional change.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/block/pktcdvd.c | 23 +++--------------------
 1 file changed, 3 insertions(+), 20 deletions(-)

diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index a53d21dbf2ab..2c5441303e55 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -504,24 +504,7 @@ static int pkt_seq_show(struct seq_file *m, void *p)
 			pd->write_congestion_on);
 	return 0;
 }
-
-static int pkt_debugfs_seq_show(struct seq_file *m, void *p)
-{
-	return pkt_seq_show(m, p);
-}
-
-static int pkt_debugfs_fops_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, pkt_debugfs_seq_show, inode->i_private);
-}
-
-static const struct file_operations debug_fops = {
-	.open		= pkt_debugfs_fops_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-	.owner		= THIS_MODULE,
-};
+DEFINE_SHOW_ATTRIBUTE(pkt_seq);
 
 static void pkt_debugfs_dev_new(struct pktcdvd_device *pd)
 {
@@ -531,8 +514,8 @@ static void pkt_debugfs_dev_new(struct pktcdvd_device *pd)
 	if (!pd->dfs_d_root)
 		return;
 
-	pd->dfs_f_info = debugfs_create_file("info", 0444,
-					     pd->dfs_d_root, pd, &debug_fops);
+	pd->dfs_f_info = debugfs_create_file("info", 0444, pd->dfs_d_root,
+					     pd, &pkt_seq_fops);
 }
 
 static void pkt_debugfs_dev_remove(struct pktcdvd_device *pd)
-- 
2.39.1

[PATCH v2 7/9] pktcdvd: Use put_unaligned_be16() and get_unaligned_be16()

[Andy Shevchenko]

This makes the driver code slightly better to understand.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/block/pktcdvd.c | 31 ++++++++++++++-----------------
 1 file changed, 14 insertions(+), 17 deletions(-)

diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 2c5441303e55..340e953e3888 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -70,6 +70,8 @@
 #include <linux/nospec.h>
 #include <linux/uaccess.h>
 
+#include <asm/unaligned.h>
+
 #define DRIVER_NAME	"pktcdvd"
 
 #define MAX_SPEED 0xffff
@@ -825,10 +827,8 @@ static noinline_for_stack int pkt_set_speed(struct pktcdvd_device *pd,
 	init_cdrom_command(&cgc, NULL, 0, CGC_DATA_NONE);
 	cgc.sshdr = &sshdr;
 	cgc.cmd[0] = GPCMD_SET_SPEED;
-	cgc.cmd[2] = (read_speed >> 8) & 0xff;
-	cgc.cmd[3] = read_speed & 0xff;
-	cgc.cmd[4] = (write_speed >> 8) & 0xff;
-	cgc.cmd[5] = write_speed & 0xff;
+	put_unaligned_be16(read_speed, &cgc.cmd[2]);
+	put_unaligned_be16(write_speed, &cgc.cmd[4]);
 
 	ret = pkt_generic_packet(pd, &cgc);
 	if (ret)
@@ -1526,8 +1526,7 @@ static int pkt_mode_sense(struct pktcdvd_device *pd, struct packet_command *cgc,
 
 	cgc->cmd[0] = GPCMD_MODE_SENSE_10;
 	cgc->cmd[2] = page_code | (page_control << 6);
-	cgc->cmd[7] = cgc->buflen >> 8;
-	cgc->cmd[8] = cgc->buflen & 0xff;
+	put_unaligned_be16(cgc->buflen, &cgc->cmd[7]);
 	cgc->data_direction = CGC_DATA_READ;
 	return pkt_generic_packet(pd, cgc);
 }
@@ -1538,8 +1537,7 @@ static int pkt_mode_select(struct pktcdvd_device *pd, struct packet_command *cgc
 	memset(cgc->buffer, 0, 2);
 	cgc->cmd[0] = GPCMD_MODE_SELECT_10;
 	cgc->cmd[1] = 0x10;		/* PF */
-	cgc->cmd[7] = cgc->buflen >> 8;
-	cgc->cmd[8] = cgc->buflen & 0xff;
+	put_unaligned_be16(cgc->buflen, &cgc->cmd[7]);
 	cgc->data_direction = CGC_DATA_WRITE;
 	return pkt_generic_packet(pd, cgc);
 }
@@ -1580,8 +1578,7 @@ static int pkt_get_track_info(struct pktcdvd_device *pd, __u16 track, __u8 type,
 	init_cdrom_command(&cgc, ti, 8, CGC_DATA_READ);
 	cgc.cmd[0] = GPCMD_READ_TRACK_RZONE_INFO;
 	cgc.cmd[1] = type & 3;
-	cgc.cmd[4] = (track & 0xff00) >> 8;
-	cgc.cmd[5] = track & 0xff;
+	put_unaligned_be16(track, &cgc.cmd[4]);
 	cgc.cmd[8] = 8;
 	cgc.quiet = 1;
 
@@ -1662,8 +1659,8 @@ static noinline_for_stack int pkt_set_write_settings(struct pktcdvd_device *pd)
 		return ret;
 	}
 
-	size = 2 + ((buffer[0] << 8) | (buffer[1] & 0xff));
-	pd->mode_offset = (buffer[6] << 8) | (buffer[7] & 0xff);
+	size = 2 + get_unaligned_be16(&buffer[0]);
+	pd->mode_offset = get_unaligned_be16(&buffer[6]);
 	if (size > sizeof(buffer))
 		size = sizeof(buffer);
 
@@ -1820,7 +1817,7 @@ static noinline_for_stack int pkt_probe_settings(struct pktcdvd_device *pd)
 	cgc.cmd[0] = GPCMD_GET_CONFIGURATION;
 	cgc.cmd[8] = 8;
 	ret = pkt_generic_packet(pd, &cgc);
-	pd->mmc3_profile = ret ? 0xffff : buf[6] << 8 | buf[7];
+	pd->mmc3_profile = ret ? 0xffff : get_unaligned_be16(&buf[6]);
 
 	memset(&di, 0, sizeof(disc_information));
 	memset(&ti, 0, sizeof(track_information));
@@ -1933,7 +1930,7 @@ static noinline_for_stack int pkt_write_caching(struct pktcdvd_device *pd,
 
 	buf[pd->mode_offset + 10] |= (!!set << 2);
 
-	cgc.buflen = cgc.cmd[8] = 2 + ((buf[0] << 8) | (buf[1] & 0xff));
+	cgc.buflen = cgc.cmd[8] = 2 + get_unaligned_be16(&buf[0]);
 	ret = pkt_mode_select(pd, &cgc);
 	if (ret) {
 		dev_err(ddev, "write caching control failed\n");
@@ -1988,12 +1985,12 @@ static noinline_for_stack int pkt_get_max_speed(struct pktcdvd_device *pd,
 		 * Speed Performance Descriptor Block", use the information
 		 * in the first block. (contains the highest speed)
 		 */
-		int num_spdb = (cap_buf[30] << 8) + cap_buf[31];
+		int num_spdb = get_unaligned_be16(&cap_buf[30]);
 		if (num_spdb > 0)
 			offset = 34;
 	}
 
-	*write_speed = (cap_buf[offset] << 8) | cap_buf[offset + 1];
+	*write_speed = get_unaligned_be16(&cap_buf[offset]);
 	return 0;
 }
 
@@ -2038,7 +2035,7 @@ static noinline_for_stack int pkt_media_speed(struct pktcdvd_device *pd,
 		pkt_dump_sense(pd, &cgc);
 		return ret;
 	}
-	size = ((unsigned int) buf[0]<<8) + buf[1] + 2;
+	size = 2 + get_unaligned_be16(&buf[0]);
 	if (size > sizeof(buf))
 		size = sizeof(buf);
 
-- 
2.39.1

[PATCH v2 8/9] pktcdvd: Get rid of redundant 'else'

[Andy Shevchenko]

In the snippets like the following

	if (...)
		return / goto / break / continue ...;
	else
		...

the 'else' is redundant. Get rid of it.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/block/pktcdvd.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 340e953e3888..22048739a245 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -958,25 +958,25 @@ static int pkt_set_segment_merging(struct pktcdvd_device *pd, struct request_que
 {
 	struct device *ddev = disk_to_dev(pd->disk);
 
-	if ((pd->settings.size << 9) / CD_FRAMESIZE
-	    <= queue_max_segments(q)) {
+	if ((pd->settings.size << 9) / CD_FRAMESIZE <= queue_max_segments(q)) {
 		/*
 		 * The cdrom device can handle one segment/frame
 		 */
 		clear_bit(PACKET_MERGE_SEGS, &pd->flags);
 		return 0;
-	} else if ((pd->settings.size << 9) / PAGE_SIZE
-		   <= queue_max_segments(q)) {
+	}
+
+	if ((pd->settings.size << 9) / PAGE_SIZE <= queue_max_segments(q)) {
 		/*
 		 * We can handle this case at the expense of some extra memory
 		 * copies during write operations
 		 */
 		set_bit(PACKET_MERGE_SEGS, &pd->flags);
 		return 0;
-	} else {
-		dev_err(ddev, "cdrom max_phys_segments too small\n");
-		return -EIO;
 	}
+
+	dev_err(ddev, "cdrom max_phys_segments too small\n");
+	return -EIO;
 }
 
 static void pkt_end_io_read(struct bio *bio)
-- 
2.39.1

[PATCH v2 9/9] pktcdvd: Sort headers

[Andy Shevchenko]

Sort the headers in alphabetic order in order to ease
the maintenance for this part.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/block/pktcdvd.c | 31 ++++++++++++++++---------------
 1 file changed, 16 insertions(+), 15 deletions(-)

diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 22048739a245..93597bde9c33 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -46,29 +46,30 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
-#include <linux/pktcdvd.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
+#include <linux/backing-dev.h>
 #include <linux/compat.h>
-#include <linux/kthread.h>
+#include <linux/debugfs.h>
+#include <linux/device.h>
 #include <linux/errno.h>
-#include <linux/spinlock.h>
 #include <linux/file.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/miscdevice.h>
 #include <linux/freezer.h>
+#include <linux/kernel.h>
+#include <linux/kthread.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
 #include <linux/mutex.h>
+#include <linux/nospec.h>
+#include <linux/pktcdvd.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 #include <linux/slab.h>
-#include <linux/backing-dev.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+#include <linux/uaccess.h>
+
+#include <scsi/scsi.h>
 #include <scsi/scsi_cmnd.h>
 #include <scsi/scsi_ioctl.h>
-#include <scsi/scsi.h>
-#include <linux/debugfs.h>
-#include <linux/device.h>
-#include <linux/nospec.h>
-#include <linux/uaccess.h>
 
 #include <asm/unaligned.h>
 
-- 
2.39.1

Re: [PATCH v2 0/9] pktdvd: Clean up the driver

[Andy Shevchenko]

On Fri, Mar 10, 2023 at 06:45:40PM +0200, Andy Shevchenko wrote:
> Some cleanups to the recently resurrected driver.

Anybody to pick this up, please?

> v2:
> - added tags (Greg)
> 
> Andy Shevchenko (9):
>   pktcdvd: Get rid of custom printing macros
>   pktcdvd: replace sscanf() by kstrtoul()
>   pktcdvd: use sysfs_emit() to instead of scnprintf()
>   pktcdvd: Get rid of pkt_seq_show() forward declaration
>   pktcdvd: Drop redundant castings for sector_t
>   pktcdvd: Use DEFINE_SHOW_ATTRIBUTE() to simplify code
>   pktcdvd: Use put_unaligned_be16() and get_unaligned_be16()
>   pktcdvd: Get rid of redundant 'else'
>   pktcdvd: Sort headers
> 
>  drivers/block/pktcdvd.c      | 525 +++++++++++++++++------------------
>  include/linux/pktcdvd.h      |   1 -
>  include/uapi/linux/pktcdvd.h |   1 +
>  3 files changed, 257 insertions(+), 270 deletions(-)
> 
> -- 
> 2.39.1
> 

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH v2 0/9] pktdvd: Clean up the driver

[Jens Axboe]

On 6/6/23 8:58 AM, Andy Shevchenko wrote:
> On Fri, Mar 10, 2023 at 06:45:40PM +0200, Andy Shevchenko wrote:
>> Some cleanups to the recently resurrected driver.
> 
> Anybody to pick this up, please?

I can pick it up, I'm assuming this is all untested?

-- 
Jens Axboe

Re: [PATCH v2 0/9] pktdvd: Clean up the driver

[Andy Shevchenko]

On Tue, Jun 06, 2023 at 02:23:03PM -0600, Jens Axboe wrote:
> On 6/6/23 8:58 AM, Andy Shevchenko wrote:
> > On Fri, Mar 10, 2023 at 06:45:40PM +0200, Andy Shevchenko wrote:
> >> Some cleanups to the recently resurrected driver.
> > 
> > Anybody to pick this up, please?
> 
> I can pick it up, I'm assuming this is all untested?

Compile tested only. So I assume the answer is yes, untested.

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH v2 0/9] pktdvd: Clean up the driver

[Jens Axboe]

On 6/7/23 2:08 PM, Andy Shevchenko wrote:
> On Tue, Jun 06, 2023 at 02:23:03PM -0600, Jens Axboe wrote:
>> On 6/6/23 8:58 AM, Andy Shevchenko wrote:
>>> On Fri, Mar 10, 2023 at 06:45:40PM +0200, Andy Shevchenko wrote:
>>>> Some cleanups to the recently resurrected driver.
>>>
>>> Anybody to pick this up, please?
>>
>> I can pick it up, I'm assuming this is all untested?
> 
> Compile tested only. So I assume the answer is yes, untested.

I'd be surprised if you said you actually ran it. Series looks sane,
I'll get it applied. Thanks.

-- 
Jens Axboe

Re: [PATCH v2 0/9] pktdvd: Clean up the driver

[Jens Axboe]

On Fri, 10 Mar 2023 18:45:40 +0200, Andy Shevchenko wrote:
> Some cleanups to the recently resurrected driver.
> 
> v2:
> - added tags (Greg)
> 
> Andy Shevchenko (9):
>   pktcdvd: Get rid of custom printing macros
>   pktcdvd: replace sscanf() by kstrtoul()
>   pktcdvd: use sysfs_emit() to instead of scnprintf()
>   pktcdvd: Get rid of pkt_seq_show() forward declaration
>   pktcdvd: Drop redundant castings for sector_t
>   pktcdvd: Use DEFINE_SHOW_ATTRIBUTE() to simplify code
>   pktcdvd: Use put_unaligned_be16() and get_unaligned_be16()
>   pktcdvd: Get rid of redundant 'else'
>   pktcdvd: Sort headers
> 
> [...]

Applied, thanks!

[1/9] pktcdvd: Get rid of custom printing macros
      commit: 3a41db531e5124adaa3a9ab9ca0c724aee85b10c
[2/9] pktcdvd: replace sscanf() by kstrtoul()
      commit: 1a0ddd56e545b743af510b5a1b8dbdfe7d35cd3b
[3/9] pktcdvd: use sysfs_emit() to instead of scnprintf()
      commit: 3bb5746c26cdfcc354af4867c02f1e0ec1131a62
[4/9] pktcdvd: Get rid of pkt_seq_show() forward declaration
      commit: f023faaa988671f0f1d1a965dc5d7e61d0f5e65e
[5/9] pktcdvd: Drop redundant castings for sector_t
      commit: 93c8f6f38be67e30adf8d8eb5e7e9ccb89326119
[6/9] pktcdvd: Use DEFINE_SHOW_ATTRIBUTE() to simplify code
      commit: 80d994d2a71f88e0809dcaccef2259c791d2e3ef
[7/9] pktcdvd: Use put_unaligned_be16() and get_unaligned_be16()
      commit: 046636a4bac575aff78e44c7e1cff84c83a345a9
[8/9] pktcdvd: Get rid of redundant 'else'
      commit: 6a5945a8eb5a626afe6feb341824e7e1d007c8ff
[9/9] pktcdvd: Sort headers
      commit: 7da15fb0318f18398feea2848d099a8d0d7b5965

Best regards,
-- 
Jens Axboe