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| author | Arnd Bergmann <arnd@arndb.de> | 2018-03-15 16:34:08 +0100 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2018-03-15 10:06:06 -0700 |
| commit | 58eb5b6707477ff458db3ee522aac317da719e2a (patch) | |
| tree | 1f7a232a7c9c1fb3fecf06bccce04f2ef9affab8 /fs/pstore/Kconfig | |
| parent | cb3bee0369bc9316e47f4ad95a3c33f4e0d50a06 (diff) | |
| download | linux-58eb5b6707477ff458db3ee522aac317da719e2a.tar.gz | |
pstore: fix crypto dependencies
The new crypto API use causes some problems with Kconfig dependencies,
including this link error:
fs/pstore/platform.o: In function `pstore_register':
platform.c:(.text+0x248): undefined reference to `crypto_has_alg'
platform.c:(.text+0x2a0): undefined reference to `crypto_alloc_base'
fs/pstore/platform.o: In function `pstore_unregister':
platform.c:(.text+0x498): undefined reference to `crypto_destroy_tfm'
crypto/lz4hc.o: In function `lz4hc_sdecompress':
lz4hc.c:(.text+0x1a): undefined reference to `LZ4_decompress_safe'
crypto/lz4hc.o: In function `lz4hc_decompress_crypto':
lz4hc.c:(.text+0x5a): undefined reference to `LZ4_decompress_safe'
crypto/lz4hc.o: In function `lz4hc_scompress':
lz4hc.c:(.text+0xaa): undefined reference to `LZ4_compress_HC'
crypto/lz4hc.o: In function `lz4hc_mod_init':
lz4hc.c:(.init.text+0xf): undefined reference to `crypto_register_alg'
lz4hc.c:(.init.text+0x1f): undefined reference to `crypto_register_scomp'
lz4hc.c:(.init.text+0x2f): undefined reference to `crypto_unregister_alg'
The problem is that with CONFIG_CRYPTO=m, we must not 'select CRYPTO_LZ4'
from a bool symbol, or call crypto API functions from a built-in
module.
This turns the sub-options into 'tristate' ones so the dependencies
are honored, and makes the pstore itself select the crypto core
if necessary.
Fixes: cb3bee0369bc ("pstore: Use crypto compress API")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'fs/pstore/Kconfig')
| -rw-r--r-- | fs/pstore/Kconfig | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/fs/pstore/Kconfig b/fs/pstore/Kconfig index 49b407eab846..09c19ef91526 100644 --- a/fs/pstore/Kconfig +++ b/fs/pstore/Kconfig @@ -1,5 +1,6 @@ config PSTORE tristate "Persistent store support" + select CRYPTO if PSTORE_COMPRESS default n help This option enables generic access to platform level @@ -13,7 +14,7 @@ config PSTORE say N. config PSTORE_DEFLATE_COMPRESS - bool "DEFLATE (ZLIB) compression" + tristate "DEFLATE (ZLIB) compression" default y depends on PSTORE select CRYPTO_DEFLATE @@ -22,21 +23,21 @@ config PSTORE_DEFLATE_COMPRESS algorithm support. config PSTORE_LZO_COMPRESS - bool "LZO compression" + tristate "LZO compression" depends on PSTORE select CRYPTO_LZO help This option enables LZO compression algorithm support. config PSTORE_LZ4_COMPRESS - bool "LZ4 compression" + tristate "LZ4 compression" depends on PSTORE select CRYPTO_LZ4 help This option enables LZ4 compression algorithm support. config PSTORE_LZ4HC_COMPRESS - bool "LZ4HC compression" + tristate "LZ4HC compression" depends on PSTORE select CRYPTO_LZ4HC help @@ -70,19 +71,19 @@ choice The default compression algorithm is deflate. config PSTORE_DEFLATE_COMPRESS_DEFAULT - bool "deflate" if PSTORE_DEFLATE_COMPRESS=y + bool "deflate" if PSTORE_DEFLATE_COMPRESS config PSTORE_LZO_COMPRESS_DEFAULT - bool "lzo" if PSTORE_LZO_COMPRESS=y + bool "lzo" if PSTORE_LZO_COMPRESS config PSTORE_LZ4_COMPRESS_DEFAULT - bool "lz4" if PSTORE_LZ4_COMPRESS=y + bool "lz4" if PSTORE_LZ4_COMPRESS config PSTORE_LZ4HC_COMPRESS_DEFAULT - bool "lz4hc" if PSTORE_LZ4HC_COMPRESS=y + bool "lz4hc" if PSTORE_LZ4HC_COMPRESS config PSTORE_842_COMPRESS_DEFAULT - bool "842" if PSTORE_842_COMPRESS=y + bool "842" if PSTORE_842_COMPRESS endchoice |