There's nothing special about zram and lzo. It works just fine without it, so as long as at least one of the other supported compression algorithms is selected.
Signed-off-by: Rui Salvaterra <[email protected]> --- v2: fix the dependency on CRYPTO. drivers/block/zram/Kconfig | 6 +++++- drivers/block/zram/zcomp.c | 2 ++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/block/zram/Kconfig b/drivers/block/zram/Kconfig index fe7a4b7d30cf..14b2b098d662 100644 --- a/drivers/block/zram/Kconfig +++ b/drivers/block/zram/Kconfig @@ -2,7 +2,6 @@ config ZRAM tristate "Compressed RAM block device support" depends on BLOCK && SYSFS && ZSMALLOC && CRYPTO - select CRYPTO_LZO help Creates virtual block devices called /dev/zramX (X = 0, 1, ...). Pages written to these disks are compressed and stored in memory @@ -37,3 +36,8 @@ config ZRAM_MEMORY_TRACKING /sys/kernel/debug/zram/zramX/block_state. See Documentation/admin-guide/blockdev/zram.rst for more information. + +config ZRAM_AUTOSEL_ALGO + def_bool y + depends on ZRAM && !(CRYPTO_LZ4 || CRYPTO_LZ4HC || CRYPTO_842 || CRYPTO_ZSTD) + select CRYPTO_LZO diff --git a/drivers/block/zram/zcomp.c b/drivers/block/zram/zcomp.c index 33e3b76c4fa9..052aa3f65514 100644 --- a/drivers/block/zram/zcomp.c +++ b/drivers/block/zram/zcomp.c @@ -15,8 +15,10 @@ #include "zcomp.h" static const char * const backends[] = { +#if IS_ENABLED(CONFIG_CRYPTO_LZO) "lzo", "lzo-rle", +#endif #if IS_ENABLED(CONFIG_CRYPTO_LZ4) "lz4", #endif -- 2.28.0
