linux-kernel - pstore: fix compression

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Date:   Thu, 18 Feb 2021 12:15:47 +0100
From:   Jiri Bohac <jbohac@...e.cz>
To:     Kees Cook <keescook@...omium.org>,
        Anton Vorontsov <anton@...msg.org>,
        Colin Cross <ccross@...roid.com>,
        Tony Luck <tony.luck@...el.com>
Cc:     Matteo Croce <mcroce@...ux.microsoft.com>, stable@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: pstore: fix compression

pstore_compress() and decompress_record() use a mistyped config option
name ("PSTORE_COMPRESSION" instead of "PSTORE_COMPRESS").
As a result compression and decompressionm of pstore records is always
disabled.

Use the correct config option name.

Signed-off-by: Jiri Bohac <jbohac@...e.cz>
Fixes: fd49e03280e596e54edb93a91bc96170f8e97e4a ("pstore: Fix linking when crypto API disabled")

diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index 32f64abc277c..d963ae7902f9 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -269,7 +269,7 @@ static int pstore_compress(const void *in, void *out,
 {
 	int ret;
 
-	if (!IS_ENABLED(CONFIG_PSTORE_COMPRESSION))
+	if (!IS_ENABLED(CONFIG_PSTORE_COMPRESS))
 		return -EINVAL;
 
 	ret = crypto_comp_compress(tfm, in, inlen, out, &outlen);
@@ -671,7 +671,7 @@ static void decompress_record(struct pstore_record *record)
 	int unzipped_len;
 	char *unzipped, *workspace;
 
-	if (!IS_ENABLED(CONFIG_PSTORE_COMPRESSION) || !record->compressed)
+	if (!IS_ENABLED(CONFIG_PSTORE_COMPRESS) || !record->compressed)
 		return;
 
 	/* Only PSTORE_TYPE_DMESG support compression. */

-- 
Jiri Bohac <jbohac@...e.cz>
SUSE Labs, Prague, Czechia