linux-kernel - [PATCH v3 1/3] blk-integrity: use sysfs

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Message-Id: <20230309-kobj_release-gendisk_integrity-v3-1-ceccb4493c46@weissschuh.net>
Date:   Sat, 18 Mar 2023 17:36:23 +0000
From:   Thomas Weißschuh <linux@...ssschuh.net>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Christoph Hellwig <hch@...radead.org>,
        Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH v3 1/3] blk-integrity: use sysfs_emit

The correct way to emit data into sysfs is via sysfs_emit(), use it.

Also perform some trivial syntactic cleanups.

Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
 block/blk-integrity.c | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/block/blk-integrity.c b/block/blk-integrity.c
index 8f01d786f5cb..aca8c783d749 100644
--- a/block/blk-integrity.c
+++ b/block/blk-integrity.c
@@ -248,20 +248,19 @@ static ssize_t integrity_attr_store(struct kobject *kobj,
 static ssize_t integrity_format_show(struct blk_integrity *bi, char *page)
 {
 	if (bi->profile && bi->profile->name)
-		return sprintf(page, "%s\n", bi->profile->name);
-	else
-		return sprintf(page, "none\n");
+		return sysfs_emit(page, "%s\n", bi->profile->name);
+	return sysfs_emit(page, "none\n");
 }
 
 static ssize_t integrity_tag_size_show(struct blk_integrity *bi, char *page)
 {
-	return sprintf(page, "%u\n", bi->tag_size);
+	return sysfs_emit(page, "%u\n", bi->tag_size);
 }
 
 static ssize_t integrity_interval_show(struct blk_integrity *bi, char *page)
 {
-	return sprintf(page, "%u\n",
-		       bi->interval_exp ? 1 << bi->interval_exp : 0);
+	return sysfs_emit(page, "%u\n",
+			  bi->interval_exp ? 1 << bi->interval_exp : 0);
 }
 
 static ssize_t integrity_verify_store(struct blk_integrity *bi,
@@ -280,7 +279,7 @@ static ssize_t integrity_verify_store(struct blk_integrity *bi,
 
 static ssize_t integrity_verify_show(struct blk_integrity *bi, char *page)
 {
-	return sprintf(page, "%d\n", (bi->flags & BLK_INTEGRITY_VERIFY) != 0);
+	return sysfs_emit(page, "%d\n", !!(bi->flags & BLK_INTEGRITY_VERIFY));
 }
 
 static ssize_t integrity_generate_store(struct blk_integrity *bi,
@@ -299,13 +298,13 @@ static ssize_t integrity_generate_store(struct blk_integrity *bi,
 
 static ssize_t integrity_generate_show(struct blk_integrity *bi, char *page)
 {
-	return sprintf(page, "%d\n", (bi->flags & BLK_INTEGRITY_GENERATE) != 0);
+	return sysfs_emit(page, "%d\n", !!(bi->flags & BLK_INTEGRITY_GENERATE));
 }
 
 static ssize_t integrity_device_show(struct blk_integrity *bi, char *page)
 {
-	return sprintf(page, "%u\n",
-		       (bi->flags & BLK_INTEGRITY_DEVICE_CAPABLE) != 0);
+	return sysfs_emit(page, "%u\n",
+			  !!(bi->flags & BLK_INTEGRITY_DEVICE_CAPABLE));
 }
 
 static struct integrity_sysfs_entry integrity_format_entry = {

-- 
2.40.0