crypto: caam - fix SHA support detection

The addition of Chacha20 + Poly1305 authenc support inadvertently broke
detection of algorithms supported by MDHA (Message Digest Hardware
Accelerator), fix it.

Fixes: d6bbd4ee ("crypto: caam/jr - add support for Chacha20 + Poly1305")
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/caam/caamalg.c

@@ -3476,7 +3476,7 @@ static int __init caam_algapi_init(void)
 		 * Skip algorithms requiring message digests
 		 * if MD or MD size is not supported by device.
 		 */
-		if ((c2_alg_sel & ~OP_ALG_ALGSEL_SUBMASK) == 0x40 &&
+		if (is_mdha(c2_alg_sel) &&
 		    (!md_inst || t_alg->aead.maxauthsize > md_limit))
 			continue;
 

drivers/crypto/caam/desc.h

@@ -1155,6 +1155,7 @@
 #define OP_ALG_ALGSEL_DES	(0x20 << OP_ALG_ALGSEL_SHIFT)
 #define OP_ALG_ALGSEL_3DES	(0x21 << OP_ALG_ALGSEL_SHIFT)
 #define OP_ALG_ALGSEL_ARC4	(0x30 << OP_ALG_ALGSEL_SHIFT)
+#define OP_ALG_CHA_MDHA		(0x40 << OP_ALG_ALGSEL_SHIFT)
 #define OP_ALG_ALGSEL_MD5	(0x40 << OP_ALG_ALGSEL_SHIFT)
 #define OP_ALG_ALGSEL_SHA1	(0x41 << OP_ALG_ALGSEL_SHIFT)
 #define OP_ALG_ALGSEL_SHA224	(0x42 << OP_ALG_ALGSEL_SHIFT)

drivers/crypto/caam/error.h

@@ -7,6 +7,9 @@
 
 #ifndef CAAM_ERROR_H
 #define CAAM_ERROR_H
+
+#include "desc.h"
+
 #define CAAM_ERROR_STR_MAX 302
 
 void caam_strstatus(struct device *dev, u32 status, bool qi_v2);
@@ -17,4 +20,10 @@ void caam_strstatus(struct device *dev, u32 status, bool qi_v2);
 void caam_dump_sg(const char *level, const char *prefix_str, int prefix_type,
 		  int rowsize, int groupsize, struct scatterlist *sg,
 		  size_t tlen, bool ascii);
+
+static inline bool is_mdha(u32 algtype)
+{
+	return (algtype & OP_ALG_ALGSEL_MASK & ~OP_ALG_ALGSEL_SUBMASK) ==
+	       OP_ALG_CHA_MDHA;
+}
 #endif /* CAAM_ERROR_H */