UBI: print less

UBI currently prints a lot of information when it mounts a volume, which
bothers some people. Make it less chatty - print only important information
by default.

Get rid of 'dbg_msg()' macro completely.
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

drivers/mtd/ubi/attach.c

@@ -794,8 +794,8 @@ static int check_corruption(struct ubi_device *ubi, struct ubi_vid_hdr *vid_hdr,
 		pnum);
 	ubi_err("this may be a non-UBI PEB or a severe VID header corruption which requires manual inspection");
 	ubi_dump_vid_hdr(vid_hdr);
-	dbg_msg("hexdump of PEB %d offset %d, length %d",
-		pnum, ubi->leb_start, ubi->leb_size);
+	pr_err("hexdump of PEB %d offset %d, length %d",
+	       pnum, ubi->leb_start, ubi->leb_size);
 	ubi_dbg_print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 1,
 			       ubi->peb_buf, ubi->leb_size, 1);
 	err = 1;
@@ -1170,7 +1170,7 @@ static struct ubi_attach_info *scan_all(struct ubi_device *ubi)
 			goto out_vidh;
 	}
 
-	dbg_msg("scanning is finished");
+	ubi_msg("scanning is finished");
 
 	/* Calculate mean erase counter */
 	if (ai->ec_count)
@@ -1242,7 +1242,7 @@ int ubi_attach(struct ubi_device *ubi)
 	ubi->corr_peb_count = ai->corr_peb_count;
 	ubi->max_ec = ai->max_ec;
 	ubi->mean_ec = ai->mean_ec;
-	ubi_msg("max. sequence number:       %llu", ai->max_sqnum);
+	dbg_gen("max. sequence number:       %llu", ai->max_sqnum);
 
 	err = ubi_read_volume_table(ubi, ai);
 	if (err)

drivers/mtd/ubi/build.c

@@ -619,6 +619,9 @@ static int get_bad_peb_limit(const struct ubi_device *ubi, int max_beb_per1024)
  */
 static int io_init(struct ubi_device *ubi, int max_beb_per1024)
 {
+	dbg_gen("sizeof(struct ubi_ainf_peb) %zu", sizeof(struct ubi_ainf_peb));
+	dbg_gen("sizeof(struct ubi_wl_entry) %zu", sizeof(struct ubi_wl_entry));
+
 	if (ubi->mtd->numeraseregions != 0) {
 		/*
 		 * Some flashes have several erase regions. Different regions
@@ -690,11 +693,11 @@ static int io_init(struct ubi_device *ubi, int max_beb_per1024)
 	ubi->ec_hdr_alsize = ALIGN(UBI_EC_HDR_SIZE, ubi->hdrs_min_io_size);
 	ubi->vid_hdr_alsize = ALIGN(UBI_VID_HDR_SIZE, ubi->hdrs_min_io_size);
 
-	dbg_msg("min_io_size      %d", ubi->min_io_size);
-	dbg_msg("max_write_size   %d", ubi->max_write_size);
-	dbg_msg("hdrs_min_io_size %d", ubi->hdrs_min_io_size);
-	dbg_msg("ec_hdr_alsize    %d", ubi->ec_hdr_alsize);
-	dbg_msg("vid_hdr_alsize   %d", ubi->vid_hdr_alsize);
+	dbg_gen("min_io_size      %d", ubi->min_io_size);
+	dbg_gen("max_write_size   %d", ubi->max_write_size);
+	dbg_gen("hdrs_min_io_size %d", ubi->hdrs_min_io_size);
+	dbg_gen("ec_hdr_alsize    %d", ubi->ec_hdr_alsize);
+	dbg_gen("vid_hdr_alsize   %d", ubi->vid_hdr_alsize);
 
 	if (ubi->vid_hdr_offset == 0)
 		/* Default offset */
@@ -711,10 +714,10 @@ static int io_init(struct ubi_device *ubi, int max_beb_per1024)
 	ubi->leb_start = ubi->vid_hdr_offset + UBI_VID_HDR_SIZE;
 	ubi->leb_start = ALIGN(ubi->leb_start, ubi->min_io_size);
 
-	dbg_msg("vid_hdr_offset   %d", ubi->vid_hdr_offset);
-	dbg_msg("vid_hdr_aloffset %d", ubi->vid_hdr_aloffset);
-	dbg_msg("vid_hdr_shift    %d", ubi->vid_hdr_shift);
-	dbg_msg("leb_start        %d", ubi->leb_start);
+	dbg_gen("vid_hdr_offset   %d", ubi->vid_hdr_offset);
+	dbg_gen("vid_hdr_aloffset %d", ubi->vid_hdr_aloffset);
+	dbg_gen("vid_hdr_shift    %d", ubi->vid_hdr_shift);
+	dbg_gen("leb_start        %d", ubi->leb_start);
 
 	/* The shift must be aligned to 32-bit boundary */
 	if (ubi->vid_hdr_shift % 4) {
@@ -740,7 +743,7 @@ static int io_init(struct ubi_device *ubi, int max_beb_per1024)
 	ubi->max_erroneous = ubi->peb_count / 10;
 	if (ubi->max_erroneous < 16)
 		ubi->max_erroneous = 16;
-	dbg_msg("max_erroneous    %d", ubi->max_erroneous);
+	dbg_gen("max_erroneous    %d", ubi->max_erroneous);
 
 	/*
 	 * It may happen that EC and VID headers are situated in one minimal
@@ -760,17 +763,6 @@ static int io_init(struct ubi_device *ubi, int max_beb_per1024)
 		ubi->ro_mode = 1;
 	}
 
-	ubi_msg("physical eraseblock size:   %d bytes (%d KiB)",
-		ubi->peb_size, ubi->peb_size >> 10);
-	ubi_msg("logical eraseblock size:    %d bytes", ubi->leb_size);
-	ubi_msg("smallest flash I/O unit:    %d", ubi->min_io_size);
-	if (ubi->hdrs_min_io_size != ubi->min_io_size)
-		ubi_msg("sub-page size:              %d",
-			ubi->hdrs_min_io_size);
-	ubi_msg("VID header offset:          %d (aligned %d)",
-		ubi->vid_hdr_offset, ubi->vid_hdr_aloffset);
-	ubi_msg("data offset:                %d", ubi->leb_start);
-
 	/*
 	 * Note, ideally, we have to initialize @ubi->bad_peb_count here. But
 	 * unfortunately, MTD does not provide this information. We should loop
@@ -932,8 +924,6 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num,
 	spin_lock_init(&ubi->volumes_lock);
 
 	ubi_msg("attaching mtd%d to ubi%d", mtd->index, ubi_num);
-	dbg_msg("sizeof(struct ubi_ainf_peb) %zu", sizeof(struct ubi_ainf_peb));
-	dbg_msg("sizeof(struct ubi_wl_entry) %zu", sizeof(struct ubi_wl_entry));
 
 	err = io_init(ubi, max_beb_per1024);
 	if (err)
@@ -976,23 +966,24 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num,
 		goto out_debugfs;
 	}
 
-	ubi_msg("attached mtd%d to ubi%d", mtd->index, ubi_num);
-	ubi_msg("MTD device name:            \"%s\"", mtd->name);
-	ubi_msg("MTD device size:            %llu MiB", ubi->flash_size >> 20);
-	ubi_msg("number of good PEBs:        %d", ubi->good_peb_count);
-	ubi_msg("number of bad PEBs:         %d", ubi->bad_peb_count);
-	ubi_msg("number of corrupted PEBs:   %d", ubi->corr_peb_count);
-	ubi_msg("max. allowed volumes:       %d", ubi->vtbl_slots);
-	ubi_msg("wear-leveling threshold:    %d", CONFIG_MTD_UBI_WL_THRESHOLD);
-	ubi_msg("number of internal volumes: %d", UBI_INT_VOL_COUNT);
-	ubi_msg("number of user volumes:     %d",
-		ubi->vol_count - UBI_INT_VOL_COUNT);
-	ubi_msg("available PEBs:             %d", ubi->avail_pebs);
-	ubi_msg("total number of reserved PEBs: %d", ubi->rsvd_pebs);
-	ubi_msg("number of PEBs reserved for bad PEB handling: %d",
-		ubi->beb_rsvd_pebs);
-	ubi_msg("max/mean erase counter: %d/%d", ubi->max_ec, ubi->mean_ec);
-	ubi_msg("image sequence number:  %u", ubi->image_seq);
+	ubi_msg("attached mtd%d (name \"%s\", size %llu MiB) to ubi%d",
+		mtd->index, mtd->name, ubi->flash_size >> 20, ubi_num);
+	ubi_msg("PEB size: %d bytes (%d KiB), LEB size: %d bytes",
+		ubi->peb_size, ubi->peb_size >> 10, ubi->leb_size);
+	ubi_msg("min./max. I/O unit sizes: %d/%d, sub-page size %d",
+		ubi->min_io_size, ubi->max_write_size, ubi->hdrs_min_io_size);
+	ubi_msg("VID header offset: %d (aligned %d), data offset: %d",
+		ubi->vid_hdr_offset, ubi->vid_hdr_aloffset, ubi->leb_start);
+	ubi_msg("good PEBs: %d, bad PEBs: %d, corrupted PEBs: %d",
+		ubi->good_peb_count, ubi->bad_peb_count, ubi->corr_peb_count);
+	ubi_msg("user volume: %d, internal volumes: %d, max. volumes count: %d",
+		ubi->vol_count - UBI_INT_VOL_COUNT, UBI_INT_VOL_COUNT,
+		ubi->vtbl_slots);
+	ubi_msg("max/mean erase counter: %d/%d, WL threshold: %d, image sequence number: %u",
+		ubi->max_ec, ubi->mean_ec, CONFIG_MTD_UBI_WL_THRESHOLD,
+		ubi->image_seq);
+	ubi_msg("available PEBs: %d, total reserved PEBs: %d, PEBs reserved for bad PEB handling: %d",
+		ubi->avail_pebs, ubi->rsvd_pebs, ubi->beb_rsvd_pebs);
 
 	/*
 	 * The below lock makes sure we do not race with 'ubi_thread()' which
@@ -1069,7 +1060,7 @@ int ubi_detach_mtd_dev(int ubi_num, int anyway)
 
 	ubi_assert(ubi_num == ubi->ubi_num);
 	ubi_notify_all(ubi, UBI_VOLUME_REMOVED, NULL);
-	dbg_msg("detaching mtd%d from ubi%d", ubi->mtd->index, ubi_num);
+	ubi_msg("detaching mtd%d from ubi%d", ubi->mtd->index, ubi_num);
 
 	/*
 	 * Before freeing anything, we have to stop the background thread to

drivers/mtd/ubi/cdev.c

@@ -754,7 +754,7 @@ static int rename_volumes(struct ubi_device *ubi,
 		re->new_name_len = name_len;
 		memcpy(re->new_name, name, name_len);
 		list_add_tail(&re->list, &rename_list);
-		dbg_msg("will rename volume %d from \"%s\" to \"%s\"",
+		dbg_gen("will rename volume %d from \"%s\" to \"%s\"",
 			vol_id, re->desc->vol->name, name);
 	}
 
@@ -812,7 +812,7 @@ static int rename_volumes(struct ubi_device *ubi,
 		re1->remove = 1;
 		re1->desc = desc;
 		list_add(&re1->list, &rename_list);
-		dbg_msg("will remove volume %d, name \"%s\"",
+		dbg_gen("will remove volume %d, name \"%s\"",
 			re1->desc->vol->vol_id, re1->desc->vol->name);
 	}
 
@@ -943,7 +943,7 @@ static long ubi_cdev_ioctl(struct file *file, unsigned int cmd,
 	{
 		struct ubi_rnvol_req *req;
 
-		dbg_msg("re-name volumes");
+		dbg_gen("re-name volumes");
 		req = kmalloc(sizeof(struct ubi_rnvol_req), GFP_KERNEL);
 		if (!req) {
 			err = -ENOMEM;

drivers/mtd/ubi/debug.h

@@ -42,11 +42,6 @@ void ubi_dump_vid_hdr(const struct ubi_vid_hdr *vid_hdr);
 	pr_debug("UBI DBG " type " (pid %d): " fmt "\n", current->pid,       \
 		 ##__VA_ARGS__)
 
-/* Just a debugging messages not related to any specific UBI subsystem */
-#define dbg_msg(fmt, ...)                                                    \
-	pr_err("UBI DBG (pid %d): %s: " fmt "\n",                            \
-	       current->pid, __func__, ##__VA_ARGS__)
-
 /* General debugging messages */
 #define dbg_gen(fmt, ...) ubi_dbg_msg("gen", fmt, ##__VA_ARGS__)
 /* Messages from the eraseblock association sub-system */

drivers/mtd/ubi/io.c

@@ -177,7 +177,7 @@ int ubi_io_read(const struct ubi_device *ubi, void *buf, int pnum, int offset,
 			 * enabled. A corresponding message will be printed
 			 * later, when it is has been scrubbed.
 			 */
-			dbg_msg("fixable bit-flip detected at PEB %d", pnum);
+			ubi_msg("fixable bit-flip detected at PEB %d", pnum);
 			ubi_assert(len == read);
 			return UBI_IO_BITFLIPS;
 		}

drivers/mtd/ubi/vtbl.c

@@ -304,7 +304,7 @@ static int create_vtbl(struct ubi_device *ubi, struct ubi_attach_info *ai,
 	struct ubi_vid_hdr *vid_hdr;
 	struct ubi_ainf_peb *new_aeb;
 
-	ubi_msg("create volume table (copy #%d)", copy + 1);
+	dbg_gen("create volume table (copy #%d)", copy + 1);
 
 	vid_hdr = ubi_zalloc_vid_hdr(ubi, GFP_KERNEL);
 	if (!vid_hdr)

drivers/mtd/ubi/wl.c

@@ -1201,7 +1201,7 @@ int ubi_wl_scrub_peb(struct ubi_device *ubi, int pnum)
 {
 	struct ubi_wl_entry *e;
 
-	dbg_msg("schedule PEB %d for scrubbing", pnum);
+	ubi_msg("schedule PEB %d for scrubbing", pnum);
 
 retry:
 	spin_lock(&ubi->wl_lock);