From: Guenter Roeck <linux@roeck-us.net>
To: Chris Mason <clm@fb.com>, Josef Bacik <josef@toxicpanda.com>
Cc: linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org,
Guenter Roeck <linux@roeck-us.net>,
David Sterba <dsterba@suse.com>
Subject: [PATCH -next] btrfs: Select LIBCRC32C again
Date: Mon, 8 Jul 2019 06:43:23 -0700 [thread overview]
Message-ID: <1562593403-19545-1-git-send-email-linux@roeck-us.net> (raw)
With CONFIG_BTRFS_FS=y and CONFIG_CRYPTO_CRC32C=m, we get:
fs/btrfs/super.o: In function `btrfs_mount_root':
fs/btrfs/super.c:1557: undefined reference to `crc32c_impl'
fs/btrfs/super.o: In function `btrfs_print_mod_info':
fs/btrfs/super.c:2348: undefined reference to `crc32c_impl'
fs/btrfs/extent-tree.o: In function `btrfs_crc32c':
fs/btrfs/ctree.h:2609: undefined reference to `crc32c'
fs/btrfs/ctree.h:2609: undefined reference to `crc32c'
fs/btrfs/ctree.h:2609: undefined reference to `crc32c'
fs/btrfs/dir-item.o: In function `btrfs_name_hash':
fs/btrfs/ctree.h:2619: undefined reference to `crc32c'
fs/btrfs/ctree.h:2619: undefined reference to `crc32c'
and more.
Note that the comment in the offending commit "The module dependency on
crc32c is preserved via MODULE_SOFTDEP("pre: crc32c"), which was previously
provided by LIBCRC32C config option doing the same." is wrong, since it
permits CONFIG_BTRFS_FS=y in combination with CONFIG_CRYPTO_CRC32C=m.
Cc: David Sterba <dsterba@suse.com>
Fixes: d5178578bcd4 ("btrfs: directly call into crypto framework for checksumming")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
fs/btrfs/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/fs/btrfs/Kconfig b/fs/btrfs/Kconfig
index 212b4a854f2c..4c80c70597f9 100644
--- a/fs/btrfs/Kconfig
+++ b/fs/btrfs/Kconfig
@@ -2,6 +2,7 @@
config BTRFS_FS
tristate "Btrfs filesystem support"
+ select LIBCRC32C
select CRYPTO
select CRYPTO_CRC32C
select ZLIB_INFLATE
--
2.7.4
next reply other threads:[~2019-07-08 13:43 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-08 13:43 Guenter Roeck [this message]
2019-07-09 16:10 ` [PATCH -next] btrfs: Select LIBCRC32C again Guenter Roeck
2019-07-17 14:10 ` David Sterba
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