PM: Use a more common logging style

Convert printks to pr_<level>.

Miscellanea:

o Use pr_fmt with "PM:" and remove "PM: " from format strings
o Coalesce format strings and realign format arguments
o Convert an embedded incorrect function name to "%s: ", __func__
o Convert a couple multi-line formats to multiple pr_<level> calls

Signed-off-by: Joe Perches <[e-mail]>
Acked-by: Pavel Machek <[e-mail]>
Signed-off-by: Rafael J. Wysocki <[e-mail]>

kernel/power/qos.c

···
 	for (i = PM_QOS_CPU_DMA_LATENCY; i < PM_QOS_NUM_CLASSES; i++) {
 		ret = register_pm_qos_misc(pm_qos_array[i], d);
 		if (ret < 0) {
-			printk(KERN_ERR "pm_qos_param: %s setup failed\n",
-			       pm_qos_array[i]->name);
+			pr_err("%s: %s setup failed\n",
+			       __func__, pm_qos_array[i]->name);
 			return ret;
 		}
 	}

kernel/power/snapshot.c

···
  *
  */
 
+#define pr_fmt(fmt) "PM: " fmt
+
 #include <linux/version.h>
 #include <linux/module.h>
 #include <linux/mm.h>
···
 	region->end_pfn = end_pfn;
 	list_add_tail(&region->list, &nosave_regions);
  Report:
-	printk(KERN_INFO "PM: Registered nosave memory: [mem %#010llx-%#010llx]\n",
+	pr_info("Registered nosave memory: [mem %#010llx-%#010llx]\n",
 		(unsigned long long) start_pfn << PAGE_SHIFT,
 		((unsigned long long) end_pfn << PAGE_SHIFT) - 1);
 }
···
 	list_for_each_entry(region, &nosave_regions, list) {
 		unsigned long pfn;
 
-		pr_debug("PM: Marking nosave pages: [mem %#010llx-%#010llx]\n",
+		pr_debug("Marking nosave pages: [mem %#010llx-%#010llx]\n",
 			 (unsigned long long) region->start_pfn << PAGE_SHIFT,
 			 ((unsigned long long) region->end_pfn << PAGE_SHIFT)
 				- 1);
···
 	free_pages_map = bm2;
 	mark_nosave_pages(forbidden_pages_map);
 
-	pr_debug("PM: Basic memory bitmaps created\n");
+	pr_debug("Basic memory bitmaps created\n");
 
 	return 0;
 
···
 	memory_bm_free(bm2, PG_UNSAFE_CLEAR);
 	kfree(bm2);
 
-	pr_debug("PM: Basic memory bitmaps freed\n");
+	pr_debug("Basic memory bitmaps freed\n");
 }
 
 void clear_free_pages(void)
···
 		pfn = memory_bm_next_pfn(bm);
 	}
 	memory_bm_position_reset(bm);
-	pr_info("PM: free pages cleared after restore\n");
+	pr_info("free pages cleared after restore\n");
 #endif /* PAGE_POISONING_ZERO */
 }
 
···
 	ktime_t start, stop;
 	int error;
 
-	printk(KERN_INFO "PM: Preallocating image memory... ");
+	pr_info("Preallocating image memory... ");
 	start = ktime_get();
 
 	error = memory_bm_create(&orig_bm, GFP_IMAGE, PG_ANY);
···
 
  out:
 	stop = ktime_get();
-	printk(KERN_CONT "done (allocated %lu pages)\n", pages);
+	pr_cont("done (allocated %lu pages)\n", pages);
 	swsusp_show_speed(start, stop, pages, "Allocated");
 
 	return 0;
 
  err_out:
-	printk(KERN_CONT "\n");
+	pr_cont("\n");
 	swsusp_free();
 	return -ENOMEM;
 }
···
 			free += zone_page_state(zone, NR_FREE_PAGES);
 
 	nr_pages += count_pages_for_highmem(nr_highmem);
-	pr_debug("PM: Normal pages needed: %u + %u, available pages: %u\n",
-		nr_pages, PAGES_FOR_IO, free);
+	pr_debug("Normal pages needed: %u + %u, available pages: %u\n",
+		 nr_pages, PAGES_FOR_IO, free);
 
 	return free > nr_pages + PAGES_FOR_IO;
 }
···
 {
 	unsigned int nr_pages, nr_highmem;
 
-	printk(KERN_INFO "PM: Creating hibernation image:\n");
+	pr_info("Creating hibernation image:\n");
 
 	drain_local_pages(NULL);
 	nr_pages = count_data_pages();
 	nr_highmem = count_highmem_pages();
-	printk(KERN_INFO "PM: Need to copy %u pages\n", nr_pages + nr_highmem);
+	pr_info("Need to copy %u pages\n", nr_pages + nr_highmem);
 
 	if (!enough_free_mem(nr_pages, nr_highmem)) {
-		printk(KERN_ERR "PM: Not enough free memory\n");
+		pr_err("Not enough free memory\n");
 		return -ENOMEM;
 	}
 
 	if (swsusp_alloc(&copy_bm, nr_pages, nr_highmem)) {
-		printk(KERN_ERR "PM: Memory allocation failed\n");
+		pr_err("Memory allocation failed\n");
 		return -ENOMEM;
 	}
 
···
 	nr_copy_pages = nr_pages;
 	nr_meta_pages = DIV_ROUND_UP(nr_pages * sizeof(long), PAGE_SIZE);
 
-	printk(KERN_INFO "PM: Hibernation image created (%d pages copied)\n",
-		nr_pages);
+	pr_info("Hibernation image created (%d pages copied)\n", nr_pages);
 
 	return 0;
 }
···
 	if (!reason && info->num_physpages != get_num_physpages())
 		reason = "memory size";
 	if (reason) {
-		printk(KERN_ERR "PM: Image mismatch: %s\n", reason);
+		pr_err("Image mismatch: %s\n", reason);
 		return -EPERM;
 	}
 	return 0;

kernel/power/swap.c

···
  *
  */
 
+#define pr_fmt(fmt) "PM: " fmt
+
 #include <linux/module.h>
 #include <linux/file.h>
 #include <linux/delay.h>
···
 	struct page *page = bio->bi_io_vec[0].bv_page;
 
 	if (bio->bi_status) {
-		printk(KERN_ALERT "Read-error on swap-device (%u:%u:%Lu)\n",
-				MAJOR(bio_dev(bio)), MINOR(bio_dev(bio)),
-				(unsigned long long)bio->bi_iter.bi_sector);
+		pr_alert("Read-error on swap-device (%u:%u:%Lu)\n",
+			 MAJOR(bio_dev(bio)), MINOR(bio_dev(bio)),
+			 (unsigned long long)bio->bi_iter.bi_sector);
 	}
 
 	if (bio_data_dir(bio) == WRITE)
···
 	bio_set_op_attrs(bio, op, op_flags);
 
 	if (bio_add_page(bio, page, PAGE_SIZE, 0) < PAGE_SIZE) {
-		printk(KERN_ERR "PM: Adding page to bio failed at %llu\n",
-			(unsigned long long)bio->bi_iter.bi_sector);
+		pr_err("Adding page to bio failed at %llu\n",
+		       (unsigned long long)bio->bi_iter.bi_sector);
 		bio_put(bio);
 		return -EFAULT;
 	}
···
 		error = hib_submit_io(REQ_OP_WRITE, REQ_SYNC,
 				      swsusp_resume_block, swsusp_header, NULL);
 	} else {
-		printk(KERN_ERR "PM: Swap header not found!\n");
+		pr_err("Swap header not found!\n");
 		error = -ENODEV;
 	}
 	return error;
···
 	ret = swsusp_swap_check();
 	if (ret) {
 		if (ret != -ENOSPC)
-			printk(KERN_ERR "PM: Cannot find swap device, try "
-					"swapon -a.\n");
+			pr_err("Cannot find swap device, try swapon -a\n");
 		return ret;
 	}
 	handle->cur = (struct swap_map_page *)get_zeroed_page(GFP_KERNEL);
···
 {
 	if (!error) {
 		flush_swap_writer(handle);
-		printk(KERN_INFO "PM: S");
+		pr_info("S");
 		error = mark_swapfiles(handle, flags);
-		printk("|\n");
+		pr_cont("|\n");
 	}
 
 	if (error)
···
 
 	hib_init_batch(&hb);
 
-	printk(KERN_INFO "PM: Saving image data pages (%u pages)...\n",
+	pr_info("Saving image data pages (%u pages)...\n",
 		nr_to_write);
 	m = nr_to_write / 10;
 	if (!m)
···
 		if (ret)
 			break;
 		if (!(nr_pages % m))
-			printk(KERN_INFO "PM: Image saving progress: %3d%%\n",
-			       nr_pages / m * 10);
+			pr_info("Image saving progress: %3d%%\n",
+				nr_pages / m * 10);
 		nr_pages++;
 	}
 	err2 = hib_wait_io(&hb);
···
 	if (!ret)
 		ret = err2;
 	if (!ret)
-		printk(KERN_INFO "PM: Image saving done.\n");
+		pr_info("Image saving done\n");
 	swsusp_show_speed(start, stop, nr_to_write, "Wrote");
 	return ret;
 }
···
 
 	page = (void *)__get_free_page(__GFP_RECLAIM | __GFP_HIGH);
 	if (!page) {
-		printk(KERN_ERR "PM: Failed to allocate LZO page\n");
+		pr_err("Failed to allocate LZO page\n");
 		ret = -ENOMEM;
 		goto out_clean;
 	}
 
 	data = vmalloc(sizeof(*data) * nr_threads);
 	if (!data) {
-		printk(KERN_ERR "PM: Failed to allocate LZO data\n");
+		pr_err("Failed to allocate LZO data\n");
 		ret = -ENOMEM;
 		goto out_clean;
 	}
···
 
 	crc = kmalloc(sizeof(*crc), GFP_KERNEL);
 	if (!crc) {
-		printk(KERN_ERR "PM: Failed to allocate crc\n");
+		pr_err("Failed to allocate crc\n");
 		ret = -ENOMEM;
 		goto out_clean;
 	}
···
 		                            "image_compress/%u", thr);
 		if (IS_ERR(data[thr].thr)) {
 			data[thr].thr = NULL;
-			printk(KERN_ERR
-			       "PM: Cannot start compression threads\n");
+			pr_err("Cannot start compression threads\n");
 			ret = -ENOMEM;
 			goto out_clean;
 		}
···
 	crc->thr = kthread_run(crc32_threadfn, crc, "image_crc32");
 	if (IS_ERR(crc->thr)) {
 		crc->thr = NULL;
-		printk(KERN_ERR "PM: Cannot start CRC32 thread\n");
+		pr_err("Cannot start CRC32 thread\n");
 		ret = -ENOMEM;
 		goto out_clean;
 	}
···
 	 */
 	handle->reqd_free_pages = reqd_free_pages();
 
-	printk(KERN_INFO
-		"PM: Using %u thread(s) for compression.\n"
-		"PM: Compressing and saving image data (%u pages)...\n",
-		nr_threads, nr_to_write);
+	pr_info("Using %u thread(s) for compression\n", nr_threads);
+	pr_info("Compressing and saving image data (%u pages)...\n",
+		nr_to_write);
 	m = nr_to_write / 10;
 	if (!m)
 		m = 1;
···
 				       data_of(*snapshot), PAGE_SIZE);
 
 				if (!(nr_pages % m))
-					printk(KERN_INFO
-					       "PM: Image saving progress: "
-					       "%3d%%\n",
-				               nr_pages / m * 10);
+					pr_info("Image saving progress: %3d%%\n",
+						nr_pages / m * 10);
 				nr_pages++;
 			}
 			if (!off)
···
 			ret = data[thr].ret;
 
 			if (ret < 0) {
-				printk(KERN_ERR "PM: LZO compression failed\n");
+				pr_err("LZO compression failed\n");
 				goto out_finish;
 			}
 
 			if (unlikely(!data[thr].cmp_len ||
 			             data[thr].cmp_len >
 			             lzo1x_worst_compress(data[thr].unc_len))) {
-				printk(KERN_ERR
-				       "PM: Invalid LZO compressed length\n");
+				pr_err("Invalid LZO compressed length\n");
 				ret = -1;
 				goto out_finish;
 			}
···
 	if (!ret)
 		ret = err2;
 	if (!ret)
-		printk(KERN_INFO "PM: Image saving done.\n");
+		pr_info("Image saving done\n");
 	swsusp_show_speed(start, stop, nr_to_write, "Wrote");
 out_clean:
 	if (crc) {
···
 	unsigned int free_swap = count_swap_pages(root_swap, 1);
 	unsigned int required;
 
-	pr_debug("PM: Free swap pages: %u\n", free_swap);
+	pr_debug("Free swap pages: %u\n", free_swap);
 
 	required = PAGES_FOR_IO + nr_pages;
 	return free_swap > required;
···
 	pages = snapshot_get_image_size();
 	error = get_swap_writer(&handle);
 	if (error) {
-		printk(KERN_ERR "PM: Cannot get swap writer\n");
+		pr_err("Cannot get swap writer\n");
 		return error;
 	}
 	if (flags & SF_NOCOMPRESS_MODE) {
 		if (!enough_swap(pages, flags)) {
-			printk(KERN_ERR "PM: Not enough free swap\n");
+			pr_err("Not enough free swap\n");
 			error = -ENOSPC;
 			goto out_finish;
 		}
···
 	hib_init_batch(&hb);
 
 	clean_pages_on_read = true;
-	printk(KERN_INFO "PM: Loading image data pages (%u pages)...\n",
-		nr_to_read);
+	pr_info("Loading image data pages (%u pages)...\n", nr_to_read);
 	m = nr_to_read / 10;
 	if (!m)
 		m = 1;
···
 		if (ret)
 			break;
 		if (!(nr_pages % m))
-			printk(KERN_INFO "PM: Image loading progress: %3d%%\n",
-			       nr_pages / m * 10);
+			pr_info("Image loading progress: %3d%%\n",
+				nr_pages / m * 10);
 		nr_pages++;
 	}
 	err2 = hib_wait_io(&hb);
···
 	if (!ret)
 		ret = err2;
 	if (!ret) {
-		printk(KERN_INFO "PM: Image loading done.\n");
+		pr_info("Image loading done\n");
 		snapshot_write_finalize(snapshot);
 		if (!snapshot_image_loaded(snapshot))
 			ret = -ENODATA;
···
 
 	page = vmalloc(sizeof(*page) * LZO_MAX_RD_PAGES);
 	if (!page) {
-		printk(KERN_ERR "PM: Failed to allocate LZO page\n");
+		pr_err("Failed to allocate LZO page\n");
 		ret = -ENOMEM;
 		goto out_clean;
 	}
 
 	data = vmalloc(sizeof(*data) * nr_threads);
 	if (!data) {
-		printk(KERN_ERR "PM: Failed to allocate LZO data\n");
+		pr_err("Failed to allocate LZO data\n");
 		ret = -ENOMEM;
 		goto out_clean;
 	}
···
 
 	crc = kmalloc(sizeof(*crc), GFP_KERNEL);
 	if (!crc) {
-		printk(KERN_ERR "PM: Failed to allocate crc\n");
+		pr_err("Failed to allocate crc\n");
 		ret = -ENOMEM;
 		goto out_clean;
 	}
···
 		                            "image_decompress/%u", thr);
 		if (IS_ERR(data[thr].thr)) {
 			data[thr].thr = NULL;
-			printk(KERN_ERR
-			       "PM: Cannot start decompression threads\n");
+			pr_err("Cannot start decompression threads\n");
 			ret = -ENOMEM;
 			goto out_clean;
 		}
···
 	crc->thr = kthread_run(crc32_threadfn, crc, "image_crc32");
 	if (IS_ERR(crc->thr)) {
 		crc->thr = NULL;
-		printk(KERN_ERR "PM: Cannot start CRC32 thread\n");
+		pr_err("Cannot start CRC32 thread\n");
 		ret = -ENOMEM;
 		goto out_clean;
 	}
···
 		if (!page[i]) {
 			if (i < LZO_CMP_PAGES) {
 				ring_size = i;
-				printk(KERN_ERR
-				       "PM: Failed to allocate LZO pages\n");
+				pr_err("Failed to allocate LZO pages\n");
 				ret = -ENOMEM;
 				goto out_clean;
 			} else {
···
 	}
 	want = ring_size = i;
 
-	printk(KERN_INFO
-		"PM: Using %u thread(s) for decompression.\n"
-		"PM: Loading and decompressing image data (%u pages)...\n",
-		nr_threads, nr_to_read);
+	pr_info("Using %u thread(s) for decompression\n", nr_threads);
+	pr_info("Loading and decompressing image data (%u pages)...\n",
+		nr_to_read);
 	m = nr_to_read / 10;
 	if (!m)
 		m = 1;
···
 			if (unlikely(!data[thr].cmp_len ||
 			             data[thr].cmp_len >
 			             lzo1x_worst_compress(LZO_UNC_SIZE))) {
-				printk(KERN_ERR
-				       "PM: Invalid LZO compressed length\n");
+				pr_err("Invalid LZO compressed length\n");
 				ret = -1;
 				goto out_finish;
 			}
···
 			ret = data[thr].ret;
 
 			if (ret < 0) {
-				printk(KERN_ERR
-				       "PM: LZO decompression failed\n");
+				pr_err("LZO decompression failed\n");
 				goto out_finish;
 			}
 
 			if (unlikely(!data[thr].unc_len ||
 			             data[thr].unc_len > LZO_UNC_SIZE ||
 			             data[thr].unc_len & (PAGE_SIZE - 1))) {
-				printk(KERN_ERR
-				       "PM: Invalid LZO uncompressed length\n");
+				pr_err("Invalid LZO uncompressed length\n");
 				ret = -1;
 				goto out_finish;
 			}
···
 				       data[thr].unc + off, PAGE_SIZE);
 
 				if (!(nr_pages % m))
-					printk(KERN_INFO
-					       "PM: Image loading progress: "
-					       "%3d%%\n",
-					       nr_pages / m * 10);
+					pr_info("Image loading progress: %3d%%\n",
+						nr_pages / m * 10);
 				nr_pages++;
 
 				ret = snapshot_write_next(snapshot);
···
 	}
 	stop = ktime_get();
 	if (!ret) {
-		printk(KERN_INFO "PM: Image loading done.\n");
+		pr_info("Image loading done\n");
 		snapshot_write_finalize(snapshot);
 		if (!snapshot_image_loaded(snapshot))
 			ret = -ENODATA;
 		if (!ret) {
 			if (swsusp_header->flags & SF_CRC32_MODE) {
 				if(handle->crc32 != swsusp_header->crc32) {
-					printk(KERN_ERR
-					       "PM: Invalid image CRC32!\n");
+					pr_err("Invalid image CRC32!\n");
 					ret = -ENODATA;
 				}
 			}
···
 	swap_reader_finish(&handle);
 end:
 	if (!error)
-		pr_debug("PM: Image successfully loaded\n");
+		pr_debug("Image successfully loaded\n");
 	else
-		pr_debug("PM: Error %d resuming\n", error);
+		pr_debug("Error %d resuming\n", error);
 	return error;
 }
 
···
 		if (error)
 			blkdev_put(hib_resume_bdev, FMODE_READ);
 		else
-			pr_debug("PM: Image signature found, resuming\n");
+			pr_debug("Image signature found, resuming\n");
 	} else {
 		error = PTR_ERR(hib_resume_bdev);
 	}
 
 	if (error)
-		pr_debug("PM: Image not found (code %d)\n", error);
+		pr_debug("Image not found (code %d)\n", error);
 
 	return error;
 }
···
 void swsusp_close(fmode_t mode)
 {
 	if (IS_ERR(hib_resume_bdev)) {
-		pr_debug("PM: Image device not initialised\n");
+		pr_debug("Image device not initialised\n");
 		return;
 	}
 
···
 					swsusp_resume_block,
 					swsusp_header, NULL);
 	} else {
-		printk(KERN_ERR "PM: Cannot find swsusp signature!\n");
+		pr_err("Cannot find swsusp signature!\n");
 		error = -ENODEV;
 	}