[merged mm-stable] zram-add-pr_fmt-to-backend-files.patch removed from -mm tree

[merged mm-stable] zram-add-pr_fmt-to-backend-files.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: zram: add pr_fmt to backend files
has been removed from the -mm tree.  Its filename was
     zram-add-pr_fmt-to-backend-files.patch

This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Haoqin Huang <haoqinhuang@tencent.com>
Subject: zram: add pr_fmt to backend files
Date: Tue, 4 Aug 2026 17:38:39 +0800

Add pr_fmt to each backend so that pr_err() messages are auto-prefixed
with the algorithm name.  While at it, tweak the deflate winbits pr_err to
avoid a duplicated "deflate" prefix.

Link: https://lore.kernel.org/20260804093841.67920-4-haoqinhuang7@gmail.com
Signed-off-by: Haoqin Huang <haoqinhuang@tencent.com>
Signed-off-by: Rongwei Wang <zigiwang@tencent.com>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Tested-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: David Sterba <dsterba@suse.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nick Terrell <terrelln@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/block/zram/backend_842.c     |    2 ++
 drivers/block/zram/backend_deflate.c |    4 +++-
 drivers/block/zram/backend_lz4.c     |    4 ++++
 drivers/block/zram/backend_lz4hc.c   |    4 ++++
 drivers/block/zram/backend_lzo.c     |    2 ++
 drivers/block/zram/backend_lzorle.c  |    2 ++
 drivers/block/zram/backend_zstd.c    |    2 ++
 7 files changed, 19 insertions(+), 1 deletion(-)

--- a/drivers/block/zram/backend_842.c~zram-add-pr_fmt-to-backend-files
+++ a/drivers/block/zram/backend_842.c
@@ -1,5 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#define pr_fmt(fmt) "842: " fmt
+
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/sw842.h>
--- a/drivers/block/zram/backend_deflate.c~zram-add-pr_fmt-to-backend-files
+++ a/drivers/block/zram/backend_deflate.c
@@ -1,5 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#define pr_fmt(fmt) "deflate: " fmt
+
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
@@ -30,7 +32,7 @@ static int deflate_setup_params(struct z
 		s32 wb = params->deflate.winbits;
 
 		if ((wb < -15 || wb > -9) && (wb < 9 || wb > 15)) {
-			pr_err("invalid deflate winbits: %d\n", wb);
+			pr_err("invalid winbits %d\n", wb);
 			return -EINVAL;
 		}
 	}
--- a/drivers/block/zram/backend_lz4.c~zram-add-pr_fmt-to-backend-files
+++ a/drivers/block/zram/backend_lz4.c
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#define pr_fmt(fmt) "lz4: " fmt
+
 #include <linux/kernel.h>
 #include <linux/lz4.h>
 #include <linux/slab.h>
--- a/drivers/block/zram/backend_lz4hc.c~zram-add-pr_fmt-to-backend-files
+++ a/drivers/block/zram/backend_lz4hc.c
@@ -1,3 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#define pr_fmt(fmt) "lz4hc: " fmt
+
 #include <linux/kernel.h>
 #include <linux/lz4.h>
 #include <linux/slab.h>
--- a/drivers/block/zram/backend_lzo.c~zram-add-pr_fmt-to-backend-files
+++ a/drivers/block/zram/backend_lzo.c
@@ -1,5 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#define pr_fmt(fmt) "lzo: " fmt
+
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/lzo.h>
--- a/drivers/block/zram/backend_lzorle.c~zram-add-pr_fmt-to-backend-files
+++ a/drivers/block/zram/backend_lzorle.c
@@ -1,5 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#define pr_fmt(fmt) "lzo-rle: " fmt
+
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/lzo.h>
--- a/drivers/block/zram/backend_zstd.c~zram-add-pr_fmt-to-backend-files
+++ a/drivers/block/zram/backend_zstd.c
@@ -1,5 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+#define pr_fmt(fmt) "zstd: " fmt
+
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
_

Patches currently in -mm which might be from haoqinhuang@tencent.com are