From: Randy Dunlap rdunlap@infradead.org
[ Upstream commit b04b076fb56560b39d695ac3744db457e12278fd ]
Fix build warnings when DEBUG_FS is not enabled by using an empty do-while loop instead of a value:
In file included from ../drivers/crypto/nx/nx.c:27: ../drivers/crypto/nx/nx.c: In function 'nx_register_algs': ../drivers/crypto/nx/nx.h:173:33: warning: statement with no effect [-Wunused-value] 173 | #define NX_DEBUGFS_INIT(drv) (0) ../drivers/crypto/nx/nx.c:573:9: note: in expansion of macro 'NX_DEBUGFS_INIT' 573 | NX_DEBUGFS_INIT(&nx_driver); ../drivers/crypto/nx/nx.c: In function 'nx_remove': ../drivers/crypto/nx/nx.h:174:33: warning: statement with no effect [-Wunused-value] 174 | #define NX_DEBUGFS_FINI(drv) (0) ../drivers/crypto/nx/nx.c:793:17: note: in expansion of macro 'NX_DEBUGFS_FINI' 793 | NX_DEBUGFS_FINI(&nx_driver);
Also, there is no need to build nx_debugfs.o when DEBUG_FS is not enabled, so change the Makefile to accommodate that.
Fixes: ae0222b7289d ("powerpc/crypto: nx driver code supporting nx encryption") Fixes: aef7b31c8833 ("powerpc/crypto: Build files for the nx device driver") Signed-off-by: Randy Dunlap rdunlap@infradead.org Cc: Breno Leitão leitao@debian.org Cc: Nayna Jain nayna@linux.ibm.com Cc: Paulo Flabiano Smorigo pfsmorigo@gmail.com Cc: Herbert Xu herbert@gondor.apana.org.au Cc: "David S. Miller" davem@davemloft.net Cc: linux-crypto@vger.kernel.org Cc: Michael Ellerman mpe@ellerman.id.au Cc: Nicholas Piggin npiggin@gmail.com Cc: Christophe Leroy christophe.leroy@csgroup.eu Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Herbert Xu herbert@gondor.apana.org.au Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/crypto/nx/Makefile | 2 +- drivers/crypto/nx/nx.h | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/crypto/nx/Makefile b/drivers/crypto/nx/Makefile index 015155da59c29..76139865d7fa1 100644 --- a/drivers/crypto/nx/Makefile +++ b/drivers/crypto/nx/Makefile @@ -1,7 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 obj-$(CONFIG_CRYPTO_DEV_NX_ENCRYPT) += nx-crypto.o nx-crypto-objs := nx.o \ - nx_debugfs.o \ nx-aes-cbc.o \ nx-aes-ecb.o \ nx-aes-gcm.o \ @@ -11,6 +10,7 @@ nx-crypto-objs := nx.o \ nx-sha256.o \ nx-sha512.o
+nx-crypto-$(CONFIG_DEBUG_FS) += nx_debugfs.o obj-$(CONFIG_CRYPTO_DEV_NX_COMPRESS_PSERIES) += nx-compress-pseries.o nx-compress.o obj-$(CONFIG_CRYPTO_DEV_NX_COMPRESS_POWERNV) += nx-compress-powernv.o nx-compress.o nx-compress-objs := nx-842.o diff --git a/drivers/crypto/nx/nx.h b/drivers/crypto/nx/nx.h index 7ecca168f8c48..5c77aba450cf8 100644 --- a/drivers/crypto/nx/nx.h +++ b/drivers/crypto/nx/nx.h @@ -169,8 +169,8 @@ struct nx_sg *nx_walk_and_build(struct nx_sg *, unsigned int, void nx_debugfs_init(struct nx_crypto_driver *); void nx_debugfs_fini(struct nx_crypto_driver *); #else -#define NX_DEBUGFS_INIT(drv) (0) -#define NX_DEBUGFS_FINI(drv) (0) +#define NX_DEBUGFS_INIT(drv) do {} while (0) +#define NX_DEBUGFS_FINI(drv) do {} while (0) #endif
#define NX_PAGE_NUM(x) ((u64)(x) & 0xfffffffffffff000ULL)