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Date: Tue, 7 Feb 2017 00:58:58 +0800
From: kbuild test robot <lkp@...el.com>
To: Herbert Xu <herbert@...dor.apana.org.au>
Cc: kbuild-all@...org, Stephen Rothwell <sfr@...b.auug.org.au>,
linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
Cyrille Pitchen <cyrille.pitchen@...el.com>,
Linux Crypto Mailing List <linux-crypto@...r.kernel.org>
Subject: Re: crypto: atmel - Fix authenc compile test warnings
Hi Herbert,
[auto build test WARNING on cryptodev/master]
[also build test WARNING on v4.10-rc7 next-20170206]
[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/Herbert-Xu/crypto-atmel-Fix-authenc-compile-test-warnings/20170206-171201
base: https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master
reproduce:
# apt-get install sparse
make ARCH=x86_64 allmodconfig
make C=1 CF=-D__CHECK_ENDIAN__
sparse warnings: (new ones prefixed by >>)
include/linux/compiler.h:253:8: sparse: attribute 'no_sanitize_address': unknown attribute
>> drivers/crypto/atmel-tdes.c:157:25: sparse: incompatible types in comparison expression (different type sizes)
drivers/crypto/atmel-tdes.c:528:25: sparse: incompatible types in comparison expression (different type sizes)
drivers/crypto/atmel-tdes.c:529:25: sparse: incompatible types in comparison expression (different type sizes)
In file included from drivers/crypto/atmel-tdes.c:17:0:
drivers/crypto/atmel-tdes.c: In function 'atmel_tdes_sg_copy':
include/linux/kernel.h:753:16: warning: comparison of distinct pointer types lacks a cast
(void) (&min1 == &min2); \
^
include/linux/kernel.h:756:2: note: in expansion of macro '__min'
__min(typeof(x), typeof(y), \
^~~~~
drivers/crypto/atmel-tdes.c:157:11: note: in expansion of macro 'min'
count = min(count, buflen);
^~~
In file included from include/linux/printk.h:6:0,
from include/linux/kernel.h:13,
from drivers/crypto/atmel-tdes.c:17:
drivers/crypto/atmel-tdes.c: In function 'atmel_tdes_crypt_pdc_stop':
include/linux/kern_levels.h:4:18: warning: format '%u' expects argument of type 'unsigned int', but argument 2 has type 'size_t {aka long unsigned int}' [-Wformat=]
#define KERN_SOH "\001" /* ASCII Start Of Header */
^
include/linux/kern_levels.h:10:18: note: in expansion of macro 'KERN_SOH'
#define KERN_ERR KERN_SOH "3" /* error conditions */
^~~~~~~~
include/linux/printk.h:292:9: note: in expansion of macro 'KERN_ERR'
printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
^~~~~~~~
drivers/crypto/atmel-tdes.c:339:4: note: in expansion of macro 'pr_err'
pr_err("not all data converted: %u\n", count);
^~~~~~
drivers/crypto/atmel-tdes.c: In function 'atmel_tdes_buff_init':
drivers/crypto/atmel-tdes.c:364:26: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t {aka long unsigned int}' [-Wformat=]
dev_err(dd->dev, "dma %d bytes error\n", dd->buflen);
^
drivers/crypto/atmel-tdes.c:372:26: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t {aka long unsigned int}' [-Wformat=]
dev_err(dd->dev, "dma %d bytes error\n", dd->buflen);
^
In file included from drivers/crypto/atmel-tdes.c:17:0:
drivers/crypto/atmel-tdes.c: In function 'atmel_tdes_crypt_start':
include/linux/kernel.h:753:16: warning: comparison of distinct pointer types lacks a cast
(void) (&min1 == &min2); \
^
include/linux/kernel.h:756:2: note: in expansion of macro '__min'
__min(typeof(x), typeof(y), \
^~~~~
drivers/crypto/atmel-tdes.c:528:11: note: in expansion of macro 'min'
count = min(dd->total, sg_dma_len(dd->in_sg));
^~~
include/linux/kernel.h:753:16: warning: comparison of distinct pointer types lacks a cast
(void) (&min1 == &min2); \
^
include/linux/kernel.h:756:2: note: in expansion of macro '__min'
__min(typeof(x), typeof(y), \
^~~~~
drivers/crypto/atmel-tdes.c:529:11: note: in expansion of macro 'min'
count = min(count, sg_dma_len(dd->out_sg));
^~~
In file included from include/linux/printk.h:6:0,
from include/linux/kernel.h:13,
from drivers/crypto/atmel-tdes.c:17:
drivers/crypto/atmel-tdes.c: In function 'atmel_tdes_crypt_dma_stop':
include/linux/kern_levels.h:4:18: warning: format '%u' expects argument of type 'unsigned int', but argument 2 has type 'size_t {aka long unsigned int}' [-Wformat=]
#define KERN_SOH "\001" /* ASCII Start Of Header */
^
include/linux/kern_levels.h:10:18: note: in expansion of macro 'KERN_SOH'
#define KERN_ERR KERN_SOH "3" /* error conditions */
^~~~~~~~
include/linux/printk.h:292:9: note: in expansion of macro 'KERN_ERR'
printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
^~~~~~~~
drivers/crypto/atmel-tdes.c:664:5: note: in expansion of macro 'pr_err'
pr_err("not all data converted: %u\n", count);
^~~~~~
vim +157 drivers/crypto/atmel-tdes.c
13802005 Nicolas Royer 2012-07-01 141 struct list_head dev_list;
13802005 Nicolas Royer 2012-07-01 142 spinlock_t lock;
13802005 Nicolas Royer 2012-07-01 143 };
13802005 Nicolas Royer 2012-07-01 144
13802005 Nicolas Royer 2012-07-01 145 static struct atmel_tdes_drv atmel_tdes = {
13802005 Nicolas Royer 2012-07-01 146 .dev_list = LIST_HEAD_INIT(atmel_tdes.dev_list),
13802005 Nicolas Royer 2012-07-01 147 .lock = __SPIN_LOCK_UNLOCKED(atmel_tdes.lock),
13802005 Nicolas Royer 2012-07-01 148 };
13802005 Nicolas Royer 2012-07-01 149
13802005 Nicolas Royer 2012-07-01 150 static int atmel_tdes_sg_copy(struct scatterlist **sg, size_t *offset,
13802005 Nicolas Royer 2012-07-01 151 void *buf, size_t buflen, size_t total, int out)
13802005 Nicolas Royer 2012-07-01 152 {
13802005 Nicolas Royer 2012-07-01 153 unsigned int count, off = 0;
13802005 Nicolas Royer 2012-07-01 154
13802005 Nicolas Royer 2012-07-01 155 while (buflen && total) {
13802005 Nicolas Royer 2012-07-01 156 count = min((*sg)->length - *offset, total);
13802005 Nicolas Royer 2012-07-01 @157 count = min(count, buflen);
13802005 Nicolas Royer 2012-07-01 158
13802005 Nicolas Royer 2012-07-01 159 if (!count)
13802005 Nicolas Royer 2012-07-01 160 return off;
13802005 Nicolas Royer 2012-07-01 161
13802005 Nicolas Royer 2012-07-01 162 scatterwalk_map_and_copy(buf + off, *sg, *offset, count, out);
13802005 Nicolas Royer 2012-07-01 163
13802005 Nicolas Royer 2012-07-01 164 off += count;
13802005 Nicolas Royer 2012-07-01 165 buflen -= count;
:::::: The code at line 157 was first introduced by commit
:::::: 13802005d8f2db244ec1f5d7f6923de8f7a463db crypto: atmel - add Atmel DES/TDES driver
:::::: TO: Nicolas Royer <nicolas@...rea.com>
:::::: CC: Herbert Xu <herbert@...dor.apana.org.au>
---
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