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Subject[PATCH v2 05/12] crypto: caam - fix implicit casts in endianness helpers
Date
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
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