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From:   =?UTF-8?q?Horia=20Geant=C4=83?= <horia.geanta@nxp.com>
To:     Herbert Xu <herbert@gondor.apana.org.au>,
        Stuart Yoder <stuyoder@gmail.com>,
        Laurentiu Tudor <laurentiu.tudor@nxp.com>,
        Li Yang <leoyang.li@nxp.com>, Roy Pledge <roy.pledge@nxp.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will.deacon@arm.com>
Cc:     "David S . Miller" <davem@davemloft.net>,
        Aymen Sghaier <aymen.sghaier@nxp.com>,
        linux-crypto@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH v2 05/12] crypto: caam - fix implicit casts in endianness helpers
Date:   Wed, 12 Sep 2018 11:59:30 +0300
Message-Id: <20180912085937.22489-6-horia.geanta@nxp.com>
In-Reply-To: <20180912085937.22489-1-horia.geanta@nxp.com>
References: <20180912085937.22489-1-horia.geanta@nxp.com>
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Sender: linux-kernel-owner@vger.kernel.org
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Fix the following sparse endianness warnings:

drivers/crypto/caam/regs.h:95:1: sparse: incorrect type in return expression (different base types) @@    expected unsigned int @@    got restricted __le32unsigned int @@
drivers/crypto/caam/regs.h:95:1:    expected unsigned int
drivers/crypto/caam/regs.h:95:1:    got restricted __le32 [usertype] <noident>
drivers/crypto/caam/regs.h:95:1: sparse: incorrect type in return expression (different base types) @@    expected unsigned int @@    got restricted __be32unsigned int @@
drivers/crypto/caam/regs.h:95:1:    expected unsigned int
drivers/crypto/caam/regs.h:95:1:    got restricted __be32 [usertype] <noident>

drivers/crypto/caam/regs.h:92:1: sparse: cast to restricted __le32
drivers/crypto/caam/regs.h:92:1: sparse: cast to restricted __be32

Fixes: 261ea058f016 ("crypto: caam - handle core endianness != caam endianness")
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
---
 drivers/crypto/caam/regs.h | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/crypto/caam/regs.h b/drivers/crypto/caam/regs.h
index 4fb91ba39c36..ce3f9ad7120f 100644
--- a/drivers/crypto/caam/regs.h
+++ b/drivers/crypto/caam/regs.h
@@ -70,22 +70,22 @@
 extern bool caam_little_end;
 extern bool caam_imx;
 
-#define caam_to_cpu(len)				\
-static inline u##len caam##len ## _to_cpu(u##len val)	\
-{							\
-	if (caam_little_end)				\
-		return le##len ## _to_cpu(val);		\
-	else						\
-		return be##len ## _to_cpu(val);		\
+#define caam_to_cpu(len)						\
+static inline u##len caam##len ## _to_cpu(u##len val)			\
+{									\
+	if (caam_little_end)						\
+		return le##len ## _to_cpu((__force __le##len)val);	\
+	else								\
+		return be##len ## _to_cpu((__force __be##len)val);	\
 }
 
-#define cpu_to_caam(len)				\
-static inline u##len cpu_to_caam##len(u##len val)	\
-{							\
-	if (caam_little_end)				\
-		return cpu_to_le##len(val);		\
-	else						\
-		return cpu_to_be##len(val);		\
+#define cpu_to_caam(len)					\
+static inline u##len cpu_to_caam##len(u##len val)		\
+{								\
+	if (caam_little_end)					\
+		return (__force u##len)cpu_to_le##len(val);	\
+	else							\
+		return (__force u##len)cpu_to_be##len(val);	\
 }
 
 caam_to_cpu(16)
-- 
2.16.2