fix build err:
 ld.lld: error: undefined symbol: crypto_req_done
   referenced by decompressor_crypto.c
       fs/erofs/decompressor_crypto.o:(z_erofs_crypto_decompress) in archive vmlinux.a
   referenced by decompressor_crypto.c
       fs/erofs/decompressor_crypto.o:(z_erofs_crypto_decompress) in archive vmlinux.a

 ld.lld: error: undefined symbol: crypto_acomp_decompress
   referenced by decompressor_crypto.c
       fs/erofs/decompressor_crypto.o:(z_erofs_crypto_decompress) in archive vmlinux.a

 ld.lld: error: undefined symbol: crypto_alloc_acomp
   referenced by decompressor_crypto.c
       fs/erofs/decompressor_crypto.o:(z_erofs_crypto_enable_engine) in archive vmlinux.a

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202507161032.QholMPtn-lkp@intel.com/
Fixes: b4a29efc5146 ("erofs: support DEFLATE decompression by using Intel QAT")
Signed-off-by: Bo Liu <liubo03@inspur.com>

change since v3:
- change Kconfg to select CRYPTO and CRYPTO_DEFLATE

---
 fs/erofs/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/erofs/Kconfig b/fs/erofs/Kconfig
index 6beeb7063871..7b26efc271ee 100644
--- a/fs/erofs/Kconfig
+++ b/fs/erofs/Kconfig
@@ -147,6 +147,8 @@ config EROFS_FS_ZIP_ZSTD
 config EROFS_FS_ZIP_ACCEL
 	bool "EROFS hardware decompression support"
 	depends on EROFS_FS_ZIP
+	select CRYPTO
+	select CRYPTO_DEFLATE
 	help
 	  Saying Y here includes hardware accelerator support for reading
 	  EROFS file systems containing compressed data.  It gives better
-- 
2.31.1

On 2025/7/18 11:30, Bo Liu wrote:
> fix build err:
>   ld.lld: error: undefined symbol: crypto_req_done
>     referenced by decompressor_crypto.c
>         fs/erofs/decompressor_crypto.o:(z_erofs_crypto_decompress) in archive vmlinux.a
>     referenced by decompressor_crypto.c
>         fs/erofs/decompressor_crypto.o:(z_erofs_crypto_decompress) in archive vmlinux.a
> 
>   ld.lld: error: undefined symbol: crypto_acomp_decompress
>     referenced by decompressor_crypto.c
>         fs/erofs/decompressor_crypto.o:(z_erofs_crypto_decompress) in archive vmlinux.a
> 
>   ld.lld: error: undefined symbol: crypto_alloc_acomp
>     referenced by decompressor_crypto.c
>         fs/erofs/decompressor_crypto.o:(z_erofs_crypto_enable_engine) in archive vmlinux.a
> 
> Reported-by: kernel test robot <lkp@intel.com>
> Closes: https://lore.kernel.org/oe-kbuild-all/202507161032.QholMPtn-lkp@intel.com/
> Fixes: b4a29efc5146 ("erofs: support DEFLATE decompression by using Intel QAT")
> Signed-off-by: Bo Liu <liubo03@inspur.com>

Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com>

> 
> change since v3:
> - change Kconfg to select CRYPTO and CRYPTO_DEFLATE

These two lines should be moved under the line `----`, since
it shouldn't be part of the commit message, but I've removed
this time.

Thanks,
Gao Xiang