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SubjectRe: [PATCH 1/5] mtip32xx: Delete an error message for a failed memory allocation in five functions
Hi Markus,

[auto build test WARNING on linus/master]
[also build test WARNING on v4.13-rc4 next-20170804]
[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/SF-Markus-Elfring/mtip32xx-Adjustments-for-some-function-implementations/20170807-033055
config: x86_64-randconfig-b0-08071209 (attached as .config)
compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64

All warnings (new ones prefixed by >>):

In file included from include/uapi/linux/uuid.h:21,
from include/linux/uuid.h:19,
from include/linux/mod_devicetable.h:12,
from include/linux/pci.h:20,
from drivers/block/mtip32xx/mtip32xx.c:21:
include/linux/string.h: In function 'strncpy':
include/linux/string.h:209: warning: '______f' is static but declared in inline function 'strncpy' which is not static
include/linux/string.h:211: warning: '______f' is static but declared in inline function 'strncpy' which is not static
include/linux/string.h: In function 'strcat':
include/linux/string.h:219: warning: '______f' is static but declared in inline function 'strcat' which is not static
include/linux/string.h:221: warning: '______f' is static but declared in inline function 'strcat' which is not static
include/linux/string.h: In function 'strlen':
include/linux/string.h:230: warning: '______f' is static but declared in inline function 'strlen' which is not static
include/linux/string.h:233: warning: '______f' is static but declared in inline function 'strlen' which is not static
include/linux/string.h: In function 'strnlen':
include/linux/string.h:243: warning: '______f' is static but declared in inline function 'strnlen' which is not static
include/linux/string.h: In function 'strlcpy':
include/linux/string.h:255: warning: '______f' is static but declared in inline function 'strlcpy' which is not static
include/linux/string.h:258: warning: '______f' is static but declared in inline function 'strlcpy' which is not static
include/linux/string.h:260: warning: '______f' is static but declared in inline function 'strlcpy' which is not static
include/linux/string.h:262: warning: '______f' is static but declared in inline function 'strlcpy' which is not static
include/linux/string.h: In function 'strncat':
include/linux/string.h:276: warning: '______f' is static but declared in inline function 'strncat' which is not static
include/linux/string.h:280: warning: '______f' is static but declared in inline function 'strncat' which is not static
include/linux/string.h: In function 'memset':
include/linux/string.h:290: warning: '______f' is static but declared in inline function 'memset' which is not static
include/linux/string.h:292: warning: '______f' is static but declared in inline function 'memset' which is not static
include/linux/string.h: In function 'memcpy':
include/linux/string.h:301: warning: '______f' is static but declared in inline function 'memcpy' which is not static
include/linux/string.h:302: warning: '______f' is static but declared in inline function 'memcpy' which is not static
include/linux/string.h:304: warning: '______f' is static but declared in inline function 'memcpy' which is not static
include/linux/string.h:307: warning: '______f' is static but declared in inline function 'memcpy' which is not static
include/linux/string.h: In function 'memmove':
include/linux/string.h:316: warning: '______f' is static but declared in inline function 'memmove' which is not static
include/linux/string.h:317: warning: '______f' is static but declared in inline function 'memmove' which is not static
include/linux/string.h:319: warning: '______f' is static but declared in inline function 'memmove' which is not static
include/linux/string.h:322: warning: '______f' is static but declared in inline function 'memmove' which is not static
include/linux/string.h: In function 'memscan':
include/linux/string.h:331: warning: '______f' is static but declared in inline function 'memscan' which is not static
include/linux/string.h:333: warning: '______f' is static but declared in inline function 'memscan' which is not static
include/linux/string.h: In function 'memcmp':
include/linux/string.h:342: warning: '______f' is static but declared in inline function 'memcmp' which is not static
include/linux/string.h:343: warning: '______f' is static but declared in inline function 'memcmp' which is not static
include/linux/string.h:345: warning: '______f' is static but declared in inline function 'memcmp' which is not static
include/linux/string.h:348: warning: '______f' is static but declared in inline function 'memcmp' which is not static
include/linux/string.h: In function 'memchr':
include/linux/string.h:356: warning: '______f' is static but declared in inline function 'memchr' which is not static
include/linux/string.h:358: warning: '______f' is static but declared in inline function 'memchr' which is not static
include/linux/string.h: In function 'memchr_inv':
include/linux/string.h:367: warning: '______f' is static but declared in inline function 'memchr_inv' which is not static
include/linux/string.h:369: warning: '______f' is static but declared in inline function 'memchr_inv' which is not static
include/linux/string.h: In function 'kmemdup':
include/linux/string.h:378: warning: '______f' is static but declared in inline function 'kmemdup' which is not static
include/linux/string.h:380: warning: '______f' is static but declared in inline function 'kmemdup' which is not static
include/linux/string.h: In function 'strcpy':
include/linux/string.h:390: warning: '______f' is static but declared in inline function 'strcpy' which is not static
drivers/block/mtip32xx/mtip32xx.c: In function 'mtip_hw_read_device_status':
>> drivers/block/mtip32xx/mtip32xx.c:2373: warning: unused variable 'dd'

vim +/dd +2373 drivers/block/mtip32xx/mtip32xx.c

0caff003 Asai Thambi S P 2013-04-03 2369
0caff003 Asai Thambi S P 2013-04-03 2370 static ssize_t mtip_hw_read_device_status(struct file *f, char __user *ubuf,
0caff003 Asai Thambi S P 2013-04-03 2371 size_t len, loff_t *offset)
0caff003 Asai Thambi S P 2013-04-03 2372 {
c8afd0dc David Milburn 2013-05-23 @2373 struct driver_data *dd = (struct driver_data *)f->private_data;
0caff003 Asai Thambi S P 2013-04-03 2374 int size = *offset;
c8afd0dc David Milburn 2013-05-23 2375 char *buf;
c8afd0dc David Milburn 2013-05-23 2376 int rv = 0;
0caff003 Asai Thambi S P 2013-04-03 2377
0caff003 Asai Thambi S P 2013-04-03 2378 if (!len || *offset)
0caff003 Asai Thambi S P 2013-04-03 2379 return 0;
0caff003 Asai Thambi S P 2013-04-03 2380
c8afd0dc David Milburn 2013-05-23 2381 buf = kzalloc(MTIP_DFS_MAX_BUF_SIZE, GFP_KERNEL);
b4f96ba8 Markus Elfring 2017-08-06 2382 if (!buf)
c8afd0dc David Milburn 2013-05-23 2383 return -ENOMEM;
c8afd0dc David Milburn 2013-05-23 2384
0caff003 Asai Thambi S P 2013-04-03 2385 size += show_device_status(NULL, buf);
0caff003 Asai Thambi S P 2013-04-03 2386
0caff003 Asai Thambi S P 2013-04-03 2387 *offset = size <= len ? size : len;
0caff003 Asai Thambi S P 2013-04-03 2388 size = copy_to_user(ubuf, buf, *offset);
0caff003 Asai Thambi S P 2013-04-03 2389 if (size)
c8afd0dc David Milburn 2013-05-23 2390 rv = -EFAULT;
0caff003 Asai Thambi S P 2013-04-03 2391
c8afd0dc David Milburn 2013-05-23 2392 kfree(buf);
c8afd0dc David Milburn 2013-05-23 2393 return rv ? rv : *offset;
0caff003 Asai Thambi S P 2013-04-03 2394 }
0caff003 Asai Thambi S P 2013-04-03 2395

:::::: The code at line 2373 was first introduced by commit
:::::: c8afd0dcbd14e2352258f2e2d359b36d0edd459f mtip32xx: dynamically allocate buffer in debugfs functions

:::::: TO: David Milburn <dmilburn@redhat.com>
:::::: CC: Jens Axboe <axboe@kernel.dk>

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