linux-kernel - [PATCH 1/2] bcachefs: split error messages of invalid compression into two lines

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Message-ID: <20250406152659.205997-2-integral@archlinuxcn.org>
Date: Sun,  6 Apr 2025 23:26:59 +0800
From: Integral <integral@...hlinuxcn.org>
To: Kent Overstreet <kent.overstreet@...ux.dev>,
	Kent Overstreet <kent.overstreet@...il.com>
Cc: linux-bcachefs@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Integral <integral@...hlinuxcn.org>
Subject: [PATCH 1/2] bcachefs: split error messages of invalid compression into two lines

When an invalid compression type or level is passed as an argument
to `--compression`, two error messages are squashed into one line:

    > bcachefs format --compression=lzo bcachefs-comp.img
    invalid option: invalid compression typecompression: parse error

    > bcachefs format --compression=lz4:16 bcachefs-comp.img
    invalid option: invalid compression levelcompression: parse error

To resolve this issue, add a newline character at the end of the
first error message to separate them into two lines.

Signed-off-by: Integral <integral@...hlinuxcn.org>
---
 fs/bcachefs/compress.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/bcachefs/compress.c b/fs/bcachefs/compress.c
index 28ed32449913..d68c3c7896a3 100644
--- a/fs/bcachefs/compress.c
+++ b/fs/bcachefs/compress.c
@@ -714,7 +714,7 @@ int bch2_opt_compression_parse(struct bch_fs *c, const char *_val, u64 *res,
 
 	ret = match_string(bch2_compression_opts, -1, type_str);
 	if (ret < 0 && err)
-		prt_str(err, "invalid compression type");
+		prt_str(err, "invalid compression type\n");
 	if (ret < 0)
 		goto err;
 
@@ -729,7 +729,7 @@ int bch2_opt_compression_parse(struct bch_fs *c, const char *_val, u64 *res,
 		if (!ret && level > 15)
 			ret = -EINVAL;
 		if (ret < 0 && err)
-			prt_str(err, "invalid compression level");
+			prt_str(err, "invalid compression level\n");
 		if (ret < 0)
 			goto err;
 
-- 
2.49.0