diff options
| author | Tobias Regnery <tobias.regnery@gmail.com> | 2018-04-06 09:25:17 +0200 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2018-04-06 15:45:33 -0700 |
| commit | e698aaf37f9fac419ac6c1867137cce83c90c80b (patch) | |
| tree | 90b83e1acb2f454b6c44e734001c81979cd6002d | |
| parent | 58eb5b6707477ff458db3ee522aac317da719e2a (diff) | |
| download | linux-e698aaf37f9fac419ac6c1867137cce83c90c80b.tar.bz2 | |
pstore: fix crypto dependencies without compression
Commit 58eb5b670747 ("pstore: fix crypto dependencies") fixed up the crypto
dependencies but missed the case when no compression is selected.
With CONFIG_PSTORE=y, CONFIG_PSTORE_COMPRESS=n and CONFIG_CRYPTO=m we see
the following link error:
fs/pstore/platform.o: In function `pstore_register':
(.text+0x1b1): undefined reference to `crypto_has_alg'
(.text+0x205): undefined reference to `crypto_alloc_base'
fs/pstore/platform.o: In function `pstore_unregister':
(.text+0x3b0): undefined reference to `crypto_destroy_tfm'
Fix this by checking at compile-time if CONFIG_PSTORE_COMPRESS is enabled.
Fixes: 58eb5b670747 ("pstore: fix crypto dependencies")
Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
| -rw-r--r-- | fs/pstore/platform.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c index 1143ef351c58..dc720573fd53 100644 --- a/fs/pstore/platform.c +++ b/fs/pstore/platform.c @@ -258,7 +258,7 @@ static int pstore_decompress(void *in, void *out, static void allocate_buf_for_compression(void) { - if (!zbackend) + if (!IS_ENABLED(CONFIG_PSTORE_COMPRESS) || !zbackend) return; if (!crypto_has_comp(zbackend->name, 0, 0)) { @@ -287,7 +287,7 @@ static void allocate_buf_for_compression(void) static void free_buf_for_compression(void) { - if (!IS_ERR_OR_NULL(tfm)) + if (IS_ENABLED(CONFIG_PSTORE_COMPRESS) && !IS_ERR_OR_NULL(tfm)) crypto_free_comp(tfm); kfree(big_oops_buf); big_oops_buf = NULL; |