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Clang warns when one enumerated type is implicitly converted to another
and this happens in several locations in this driver, ultimately related
to the set_cipher_{mode,config0} functions. set_cipher_mode expects a mode
of type drv_cipher_mode and set_cipher_config0 expects a mode of type
drv_crypto_direction.
drivers/crypto/ccree/cc_ivgen.c:58:35: warning: implicit conversion from
enumeration type 'enum cc_desc_direction' to different enumeration type
'enum drv_crypto_direction' [-Wenum-conversion]
set_cipher_config0(&iv_seq[idx], DESC_DIRECTION_ENCRYPT_ENCRYPT);
drivers/crypto/ccree/cc_hash.c:99:28: warning: implicit conversion from
enumeration type 'enum cc_hash_conf_pad' to different enumeration type
'enum drv_crypto_direction' [-Wenum-conversion]
set_cipher_config0(desc, HASH_DIGEST_RESULT_LITTLE_ENDIAN);
drivers/crypto/ccree/cc_aead.c:1643:30: warning: implicit conversion
from enumeration type 'enum drv_hash_hw_mode' to different enumeration
type 'enum drv_cipher_mode' [-Wenum-conversion]
set_cipher_mode(&desc[idx], DRV_HASH_HW_GHASH);
Since this fundamentally isn't a problem because these values just
represent simple integers for a shift operation, make it clear to Clang
that this is okay by making the mode parameter in both functions an int.
Link: https://github.com/ClangBuiltLinux/linux/issues/46
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Gilad Ben-Yossef <gilad@benyossef.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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|---|---|---|
| .. | ||
| cc_aead.c | ||
| cc_aead.h | ||
| cc_buffer_mgr.c | ||
| cc_buffer_mgr.h | ||
| cc_cipher.c | ||
| cc_cipher.h | ||
| cc_crypto_ctx.h | ||
| cc_debugfs.c | ||
| cc_debugfs.h | ||
| cc_driver.c | ||
| cc_driver.h | ||
| cc_fips.c | ||
| cc_fips.h | ||
| cc_hash.c | ||
| cc_hash.h | ||
| cc_host_regs.h | ||
| cc_hw_queue_defs.h | ||
| cc_ivgen.c | ||
| cc_ivgen.h | ||
| cc_kernel_regs.h | ||
| cc_lli_defs.h | ||
| cc_pm.c | ||
| cc_pm.h | ||
| cc_request_mgr.c | ||
| cc_request_mgr.h | ||
| cc_sram_mgr.c | ||
| cc_sram_mgr.h | ||
| Makefile | ||