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SubjectRe: [PATCH v3 7/7] vga: Optimise console scrolling
Hi Matthew,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.11-rc3 next-20170324]
[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/Matthew-Wilcox/Add-memsetN-functions/20170326-140108
config: sparc-allyesconfig (attached as .config)
compiler: sparc64-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=sparc

All error/warnings (new ones prefixed by >>):

In file included from include/video/vga.h:22:0,
from include/linux/vgaarb.h:34,
from drivers/gpu//drm/amd/amdgpu/amdgpu_device.c:35:
arch/sparc/include/asm/vga.h: In function 'scr_memsetw':
>> arch/sparc/include/asm/vga.h:39:11: error: 's' undeclared (first use in this function)
memset16(s, cpu_to_le16(v), n / 2);
^
arch/sparc/include/asm/vga.h:39:11: note: each undeclared identifier is reported only once for each function it appears in
--
In file included from include/video/vga.h:22:0,
from include/linux/vgaarb.h:34,
from drivers/gpu//drm/nouveau/nouveau_vga.c:1:
arch/sparc/include/asm/vga.h: In function 'scr_memsetw':
>> arch/sparc/include/asm/vga.h:39:2: error: implicit declaration of function 'memset16' [-Werror=implicit-function-declaration]
memset16(s, cpu_to_le16(v), n / 2);
^~~~~~~~
>> arch/sparc/include/asm/vga.h:39:11: error: 's' undeclared (first use in this function)
memset16(s, cpu_to_le16(v), n / 2);
^
arch/sparc/include/asm/vga.h:39:11: note: each undeclared identifier is reported only once for each function it appears in
arch/sparc/include/asm/vga.h: In function 'scr_memcpyw':
>> arch/sparc/include/asm/vga.h:46:2: error: implicit declaration of function 'memcpy' [-Werror=implicit-function-declaration]
memcpy(d, s, n);
^~~~~~
>> arch/sparc/include/asm/vga.h:46:2: warning: incompatible implicit declaration of built-in function 'memcpy'
arch/sparc/include/asm/vga.h:46:2: note: include '<string.h>' or provide a declaration of 'memcpy'
arch/sparc/include/asm/vga.h: In function 'scr_memmovew':
>> arch/sparc/include/asm/vga.h:53:2: error: implicit declaration of function 'memmove' [-Werror=implicit-function-declaration]
memmove(d, s, n);
^~~~~~~
>> arch/sparc/include/asm/vga.h:53:2: warning: incompatible implicit declaration of built-in function 'memmove'
arch/sparc/include/asm/vga.h:53:2: note: include '<string.h>' or provide a declaration of 'memmove'
In file included from include/uapi/linux/uuid.h:21:0,
from include/linux/uuid.h:19,
from include/linux/mod_devicetable.h:12,
from include/linux/i2c.h:29,
from include/uapi/linux/fb.h:5,
from include/linux/fb.h:5,
from include/linux/vga_switcheroo.h:34,
from drivers/gpu//drm/nouveau/nouveau_vga.c:2:
include/linux/string.h: At top level:
>> include/linux/string.h:104:14: error: conflicting types for 'memset16'
extern void *memset16(uint16_t *, uint16_t, __kernel_size_t);
^~~~~~~~
In file included from include/video/vga.h:22:0,
from include/linux/vgaarb.h:34,
from drivers/gpu//drm/nouveau/nouveau_vga.c:1:
arch/sparc/include/asm/vga.h:39:2: note: previous implicit declaration of 'memset16' was here
memset16(s, cpu_to_le16(v), n / 2);
^~~~~~~~
cc1: some warnings being treated as errors

vim +/s +39 arch/sparc/include/asm/vga.h

33 }
34
35 static inline void scr_memsetw(u16 *p, u16 v, unsigned int n)
36 {
37 BUG_ON((long) p >= 0);
38
> 39 memset16(s, cpu_to_le16(v), n / 2);
40 }
41
42 static inline void scr_memcpyw(u16 *d, u16 *s, unsigned int n)
43 {
44 BUG_ON((long) d >= 0);
45
> 46 memcpy(d, s, n);
47 }
48
49 static inline void scr_memmovew(u16 *d, u16 *s, unsigned int n)
50 {
51 BUG_ON((long) d >= 0);
52
> 53 memmove(d, s, n);
54 }
55
56 #define VGA_MAP_MEM(x,s) (x)

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