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SubjectRe: [PATCH 3/3] crypto: Added Chelsio Menu to the Kconfig file
Hi,

[auto build test WARNING on net-next/master]
[also build test WARNING on v4.7-rc7 next-20160711]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Yeshaswi-M-R-Gowda/crypto-chcr-Add-Chelsio-Crypto-Driver/20160712-023513
config: i386-allmodconfig (attached as .config)
compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430
reproduce:
# save the attached .config to linux build tree
make ARCH=i386

All warnings (new ones prefixed by >>):

drivers/crypto/chelsio/chcr_core.c: In function 'cpl_fw6_pld_handler':
>> drivers/crypto/chelsio/chcr_core.c:134:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
req = (struct crypto_async_request *)cookie;
^
--
In file included from include/linux/swab.h:4:0,
from include/uapi/linux/byteorder/little_endian.h:12,
from include/linux/byteorder/little_endian.h:4,
from arch/x86/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/x86/include/asm/bitops.h:504,
from include/linux/bitops.h:36,
from include/linux/kernel.h:10,
from drivers/crypto/chelsio/chcr_algo.c:42:
drivers/crypto/chelsio/chcr_algo.c: In function 'create_wreq':
>> drivers/crypto/chelsio/chcr_algo.c:454:29: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
wreq->cookie = cpu_to_be64((u64)req);
^
include/uapi/linux/swab.h:126:54: note: in definition of macro '__swab64'
#define __swab64(x) (__u64)__builtin_bswap64((__u64)(x))
^
>> include/linux/byteorder/generic.h:91:21: note: in expansion of macro '__cpu_to_be64'
#define cpu_to_be64 __cpu_to_be64
^~~~~~~~~~~~~
>> drivers/crypto/chelsio/chcr_algo.c:454:17: note: in expansion of macro 'cpu_to_be64'
wreq->cookie = cpu_to_be64((u64)req);
^~~~~~~~~~~
drivers/crypto/chelsio/chcr_algo.c: In function 'chcr_register_alg':
>> drivers/crypto/chelsio/chcr_algo.c:1471:48: warning: operation on 'driver_algs[i].alg.hash.halg.base.cra_init' may be undefined [-Wsequence-point]
driver_algs[i].alg.hash.halg.base.cra_init =
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
driver_algs[i].alg.hash.halg.base.cra_init =
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
chcr_hmac_cra_init;
~~~~~~~~~~~~~~~~~~

vim +134 drivers/crypto/chelsio/chcr_core.c

5c923415 Yeshaswi M R Gowda 2016-07-11 118 u_ctx->dev = NULL;
5c923415 Yeshaswi M R Gowda 2016-07-11 119 atomic_dec(&dev_count);
5c923415 Yeshaswi M R Gowda 2016-07-11 120 return 0;
5c923415 Yeshaswi M R Gowda 2016-07-11 121 }
5c923415 Yeshaswi M R Gowda 2016-07-11 122
5c923415 Yeshaswi M R Gowda 2016-07-11 123 static int cpl_fw6_pld_handler(struct chcr_dev *dev,
5c923415 Yeshaswi M R Gowda 2016-07-11 124 unsigned char *input)
5c923415 Yeshaswi M R Gowda 2016-07-11 125 {
5c923415 Yeshaswi M R Gowda 2016-07-11 126 struct crypto_async_request *req;
5c923415 Yeshaswi M R Gowda 2016-07-11 127 struct cpl_fw6_pld *fw6_pld;
5c923415 Yeshaswi M R Gowda 2016-07-11 128 u64 cookie;
5c923415 Yeshaswi M R Gowda 2016-07-11 129 u32 ack_err_status = 0;
5c923415 Yeshaswi M R Gowda 2016-07-11 130 int error_status = 0;
5c923415 Yeshaswi M R Gowda 2016-07-11 131
5c923415 Yeshaswi M R Gowda 2016-07-11 132 fw6_pld = (struct cpl_fw6_pld *)input;
5c923415 Yeshaswi M R Gowda 2016-07-11 133 cookie = be64_to_cpu(fw6_pld->data[1]);
5c923415 Yeshaswi M R Gowda 2016-07-11 @134 req = (struct crypto_async_request *)cookie;
5c923415 Yeshaswi M R Gowda 2016-07-11 135
5c923415 Yeshaswi M R Gowda 2016-07-11 136 ack_err_status =
5c923415 Yeshaswi M R Gowda 2016-07-11 137 ntohl(*(__be32 *)((unsigned char *)&fw6_pld->data[0] + 4));
5c923415 Yeshaswi M R Gowda 2016-07-11 138 if (ack_err_status) {
5c923415 Yeshaswi M R Gowda 2016-07-11 139 if (CHK_MAC_ERR_BIT(ack_err_status) ||
5c923415 Yeshaswi M R Gowda 2016-07-11 140 CHK_PAD_ERR_BIT(ack_err_status))
5c923415 Yeshaswi M R Gowda 2016-07-11 141 error_status = -EINVAL;
5c923415 Yeshaswi M R Gowda 2016-07-11 142 }

:::::: The code at line 134 was first introduced by commit
:::::: 5c9234157776103907606c9f4c93a311467e246f chcr: Support for Chelsio's Crypto Hardware

:::::: TO: Yeshaswi M R Gowda <yeshaswi@chelsio.com>
:::::: CC: 0day robot <fengguang.wu@intel.com>

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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