* arch/arm/mm/copypage-feroceon.c:65:6: warning: no previous prototype for 'feroceon_copy_user_highpage'
@ 2023-04-26 19:05 kernel test robot
0 siblings, 0 replies; 3+ messages in thread
From: kernel test robot @ 2023-04-26 19:05 UTC (permalink / raw)
To: Arnd Bergmann; +Cc: oe-kbuild-all, linux-kernel
Hi Arnd,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 5c7ecada25d2086aee607ff7deb69e77faa4aa92
commit: 8c1fb11b8a77dc489a8ef6d96c38c1297b629d06 ARM: s3c: enable s3c24xx multiplatform support
date: 1 year, 1 month ago
config: arm-randconfig-r031-20230426 (https://download.01.org/0day-ci/archive/20230427/202304270251.EhO6uTLH-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8c1fb11b8a77dc489a8ef6d96c38c1297b629d06
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 8c1fb11b8a77dc489a8ef6d96c38c1297b629d06
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash arch/arm/mm/
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202304270251.EhO6uTLH-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from include/linux/gfp.h:6,
from include/linux/xarray.h:15,
from include/linux/list_lru.h:14,
from include/linux/fs.h:13,
from include/linux/highmem.h:5,
from arch/arm/mm/copypage-feroceon.c:11:
include/linux/mmzone.h: In function '__nr_to_section':
include/linux/mmzone.h:1404:13: warning: the comparison will always evaluate as 'true' for the address of 'mem_section' will never be NULL [-Waddress]
1404 | if (!mem_section[SECTION_NR_TO_ROOT(nr)])
| ^
include/linux/mmzone.h:1390:27: note: 'mem_section' declared here
1390 | extern struct mem_section mem_section[NR_SECTION_ROOTS][SECTIONS_PER_ROOT];
| ^~~~~~~~~~~
arch/arm/mm/copypage-feroceon.c: At top level:
>> arch/arm/mm/copypage-feroceon.c:65:6: warning: no previous prototype for 'feroceon_copy_user_highpage' [-Wmissing-prototypes]
65 | void feroceon_copy_user_highpage(struct page *to, struct page *from,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>> arch/arm/mm/copypage-feroceon.c:78:6: warning: no previous prototype for 'feroceon_clear_user_highpage' [-Wmissing-prototypes]
78 | void feroceon_clear_user_highpage(struct page *page, unsigned long vaddr)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +/feroceon_copy_user_highpage +65 arch/arm/mm/copypage-feroceon.c
063b0a4207e43a Russell King 2008-10-31 @11 #include <linux/highmem.h>
d73e60b7144a86 Russell King 2008-10-31 12
b99afae1390140 Nicolas Pitre 2018-11-07 13 static void feroceon_copy_user_page(void *kto, const void *kfrom)
d73e60b7144a86 Russell King 2008-10-31 14 {
b99afae1390140 Nicolas Pitre 2018-11-07 15 int tmp;
b99afae1390140 Nicolas Pitre 2018-11-07 16
b99afae1390140 Nicolas Pitre 2018-11-07 17 asm volatile ("\
b99afae1390140 Nicolas Pitre 2018-11-07 18 1: ldmia %1!, {r2 - r7, ip, lr} \n\
b99afae1390140 Nicolas Pitre 2018-11-07 19 pld [%1, #0] \n\
b99afae1390140 Nicolas Pitre 2018-11-07 20 pld [%1, #32] \n\
b99afae1390140 Nicolas Pitre 2018-11-07 21 pld [%1, #64] \n\
b99afae1390140 Nicolas Pitre 2018-11-07 22 pld [%1, #96] \n\
b99afae1390140 Nicolas Pitre 2018-11-07 23 pld [%1, #128] \n\
b99afae1390140 Nicolas Pitre 2018-11-07 24 pld [%1, #160] \n\
b99afae1390140 Nicolas Pitre 2018-11-07 25 pld [%1, #192] \n\
b99afae1390140 Nicolas Pitre 2018-11-07 26 stmia %0, {r2 - r7, ip, lr} \n\
b99afae1390140 Nicolas Pitre 2018-11-07 27 ldmia %1!, {r2 - r7, ip, lr} \n\
b99afae1390140 Nicolas Pitre 2018-11-07 28 mcr p15, 0, %0, c7, c14, 1 @ clean and invalidate D line\n\
b99afae1390140 Nicolas Pitre 2018-11-07 29 add %0, %0, #32 \n\
b99afae1390140 Nicolas Pitre 2018-11-07 30 stmia %0, {r2 - r7, ip, lr} \n\
b99afae1390140 Nicolas Pitre 2018-11-07 31 ldmia %1!, {r2 - r7, ip, lr} \n\
b99afae1390140 Nicolas Pitre 2018-11-07 32 mcr p15, 0, %0, c7, c14, 1 @ clean and invalidate D line\n\
b99afae1390140 Nicolas Pitre 2018-11-07 33 add %0, %0, #32 \n\
b99afae1390140 Nicolas Pitre 2018-11-07 34 stmia %0, {r2 - r7, ip, lr} \n\
b99afae1390140 Nicolas Pitre 2018-11-07 35 ldmia %1!, {r2 - r7, ip, lr} \n\
b99afae1390140 Nicolas Pitre 2018-11-07 36 mcr p15, 0, %0, c7, c14, 1 @ clean and invalidate D line\n\
b99afae1390140 Nicolas Pitre 2018-11-07 37 add %0, %0, #32 \n\
b99afae1390140 Nicolas Pitre 2018-11-07 38 stmia %0, {r2 - r7, ip, lr} \n\
b99afae1390140 Nicolas Pitre 2018-11-07 39 ldmia %1!, {r2 - r7, ip, lr} \n\
b99afae1390140 Nicolas Pitre 2018-11-07 40 mcr p15, 0, %0, c7, c14, 1 @ clean and invalidate D line\n\
b99afae1390140 Nicolas Pitre 2018-11-07 41 add %0, %0, #32 \n\
b99afae1390140 Nicolas Pitre 2018-11-07 42 stmia %0, {r2 - r7, ip, lr} \n\
b99afae1390140 Nicolas Pitre 2018-11-07 43 ldmia %1!, {r2 - r7, ip, lr} \n\
b99afae1390140 Nicolas Pitre 2018-11-07 44 mcr p15, 0, %0, c7, c14, 1 @ clean and invalidate D line\n\
b99afae1390140 Nicolas Pitre 2018-11-07 45 add %0, %0, #32 \n\
b99afae1390140 Nicolas Pitre 2018-11-07 46 stmia %0, {r2 - r7, ip, lr} \n\
b99afae1390140 Nicolas Pitre 2018-11-07 47 ldmia %1!, {r2 - r7, ip, lr} \n\
b99afae1390140 Nicolas Pitre 2018-11-07 48 mcr p15, 0, %0, c7, c14, 1 @ clean and invalidate D line\n\
b99afae1390140 Nicolas Pitre 2018-11-07 49 add %0, %0, #32 \n\
b99afae1390140 Nicolas Pitre 2018-11-07 50 stmia %0, {r2 - r7, ip, lr} \n\
b99afae1390140 Nicolas Pitre 2018-11-07 51 ldmia %1!, {r2 - r7, ip, lr} \n\
b99afae1390140 Nicolas Pitre 2018-11-07 52 mcr p15, 0, %0, c7, c14, 1 @ clean and invalidate D line\n\
b99afae1390140 Nicolas Pitre 2018-11-07 53 add %0, %0, #32 \n\
b99afae1390140 Nicolas Pitre 2018-11-07 54 stmia %0, {r2 - r7, ip, lr} \n\
b99afae1390140 Nicolas Pitre 2018-11-07 55 subs %2, %2, #(32 * 8) \n\
b99afae1390140 Nicolas Pitre 2018-11-07 56 mcr p15, 0, %0, c7, c14, 1 @ clean and invalidate D line\n\
b99afae1390140 Nicolas Pitre 2018-11-07 57 add %0, %0, #32 \n\
d73e60b7144a86 Russell King 2008-10-31 58 bne 1b \n\
b99afae1390140 Nicolas Pitre 2018-11-07 59 mcr p15, 0, %2, c7, c10, 4 @ drain WB"
b99afae1390140 Nicolas Pitre 2018-11-07 60 : "+&r" (kto), "+&r" (kfrom), "=&r" (tmp)
b99afae1390140 Nicolas Pitre 2018-11-07 61 : "2" (PAGE_SIZE)
b99afae1390140 Nicolas Pitre 2018-11-07 62 : "r2", "r3", "r4", "r5", "r6", "r7", "ip", "lr");
d73e60b7144a86 Russell King 2008-10-31 63 }
d73e60b7144a86 Russell King 2008-10-31 64
063b0a4207e43a Russell King 2008-10-31 @65 void feroceon_copy_user_highpage(struct page *to, struct page *from,
f00a75c094c340 Russell King 2009-10-05 66 unsigned long vaddr, struct vm_area_struct *vma)
063b0a4207e43a Russell King 2008-10-31 67 {
063b0a4207e43a Russell King 2008-10-31 68 void *kto, *kfrom;
063b0a4207e43a Russell King 2008-10-31 69
5472e862de2bc4 Cong Wang 2011-11-25 70 kto = kmap_atomic(to);
5472e862de2bc4 Cong Wang 2011-11-25 71 kfrom = kmap_atomic(from);
2725898fc9bb21 Russell King 2009-10-05 72 flush_cache_page(vma, vaddr, page_to_pfn(from));
063b0a4207e43a Russell King 2008-10-31 73 feroceon_copy_user_page(kto, kfrom);
5472e862de2bc4 Cong Wang 2011-11-25 74 kunmap_atomic(kfrom);
5472e862de2bc4 Cong Wang 2011-11-25 75 kunmap_atomic(kto);
063b0a4207e43a Russell King 2008-10-31 76 }
063b0a4207e43a Russell King 2008-10-31 77
303c6443659bc1 Russell King 2008-10-31 @78 void feroceon_clear_user_highpage(struct page *page, unsigned long vaddr)
d73e60b7144a86 Russell King 2008-10-31 79 {
5472e862de2bc4 Cong Wang 2011-11-25 80 void *ptr, *kaddr = kmap_atomic(page);
43ae286b7d4d8c Nicolas Pitre 2008-11-04 81 asm volatile ("\
43ae286b7d4d8c Nicolas Pitre 2008-11-04 82 mov r1, %2 \n\
d73e60b7144a86 Russell King 2008-10-31 83 mov r2, #0 \n\
d73e60b7144a86 Russell King 2008-10-31 84 mov r3, #0 \n\
d73e60b7144a86 Russell King 2008-10-31 85 mov r4, #0 \n\
d73e60b7144a86 Russell King 2008-10-31 86 mov r5, #0 \n\
d73e60b7144a86 Russell King 2008-10-31 87 mov r6, #0 \n\
d73e60b7144a86 Russell King 2008-10-31 88 mov r7, #0 \n\
d73e60b7144a86 Russell King 2008-10-31 89 mov ip, #0 \n\
d73e60b7144a86 Russell King 2008-10-31 90 mov lr, #0 \n\
303c6443659bc1 Russell King 2008-10-31 91 1: stmia %0, {r2-r7, ip, lr} \n\
d73e60b7144a86 Russell King 2008-10-31 92 subs r1, r1, #1 \n\
303c6443659bc1 Russell King 2008-10-31 93 mcr p15, 0, %0, c7, c14, 1 @ clean and invalidate D line\n\
43ae286b7d4d8c Nicolas Pitre 2008-11-04 94 add %0, %0, #32 \n\
d73e60b7144a86 Russell King 2008-10-31 95 bne 1b \n\
303c6443659bc1 Russell King 2008-10-31 96 mcr p15, 0, r1, c7, c10, 4 @ drain WB"
43ae286b7d4d8c Nicolas Pitre 2008-11-04 97 : "=r" (ptr)
43ae286b7d4d8c Nicolas Pitre 2008-11-04 98 : "0" (kaddr), "I" (PAGE_SIZE / 32)
303c6443659bc1 Russell King 2008-10-31 99 : "r1", "r2", "r3", "r4", "r5", "r6", "r7", "ip", "lr");
5472e862de2bc4 Cong Wang 2011-11-25 100 kunmap_atomic(kaddr);
d73e60b7144a86 Russell King 2008-10-31 101 }
d73e60b7144a86 Russell King 2008-10-31 102
:::::: The code at line 65 was first introduced by commit
:::::: 063b0a4207e43acbeff3d4b09f43e750e0212b48 [ARM] copypage: provide our own copy_user_highpage()
:::::: TO: Russell King <rmk@dyn-67.arm.linux.org.uk>
:::::: CC: Russell King <rmk+kernel@arm.linux.org.uk>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests
^ permalink raw reply [flat|nested] 3+ messages in thread
* arch/arm/mm/copypage-feroceon.c:65:6: warning: no previous prototype for 'feroceon_copy_user_highpage'
@ 2022-08-19 22:51 kernel test robot
0 siblings, 0 replies; 3+ messages in thread
From: kernel test robot @ 2022-08-19 22:51 UTC (permalink / raw)
To: Arnd Bergmann; +Cc: kbuild-all, linux-kernel
arch/arm/configs/am200epdkit_defconfig
arch/arm/configs/cm_x300_defconfig
arch/arm/configs/colibri_pxa270_defconfig
arch/arm/configs/colibri_pxa300_defconfig
arch/arm/configs/corgi_defconfig
arch/arm/configs/eseries_pxa_defconfig
arch/arm/configs/ezx_defconfig
arch/arm/configs/h5000_defconfig
arch/arm/configs/imote2_defconfig
arch/arm/configs/lpd270_defconfig
arch/arm/configs/lubbock_defconfig
arch/arm/configs/magician_defconfig
arch/arm/configs/mainstone_defconfig
arch/arm/configs/palmz72_defconfig
arch/arm/configs/pcm027_defconfig
arch/arm/configs/pxa255-idp_defconfig
arch/arm/configs/pxa3xx_defconfig
arch/arm/configs/pxa_defconfig
arch/arm/configs/spitz_defconfig
arch/arm/configs/trizeps4_defconfig
arch/arm/configs/viper_defconfig
arch/arm/configs/xcep_defconfig
arch/arm/configs/zeus_defconfig
arch/arm/mach-pxa/Makefile.boot
arch/arm/mach-pxa/include/mach/uncompress.h
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 50cd95ac46548429e5bba7ca75cc97d11a697947
commit: 250c1a694ff304e5d69e74ab32755eddcc2b8f65 ARM: pxa: convert to multiplatform
date: 3 months ago
config: arm-randconfig-c032-20220820 (https://download.01.org/0day-ci/archive/20220820/202208200632.qCY00XWl-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=250c1a694ff304e5d69e74ab32755eddcc2b8f65
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 250c1a694ff304e5d69e74ab32755eddcc2b8f65
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash arch/arm/mach-lpc32xx/ arch/arm/mach-versatile/ arch/arm/mm/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
In file included from include/linux/gfp.h:6,
from include/linux/xarray.h:15,
from include/linux/list_lru.h:14,
from include/linux/fs.h:13,
from include/linux/highmem.h:5,
from arch/arm/mm/copypage-feroceon.c:11:
include/linux/mmzone.h: In function '__nr_to_section':
include/linux/mmzone.h:1404:13: warning: the comparison will always evaluate as 'true' for the address of 'mem_section' will never be NULL [-Waddress]
1404 | if (!mem_section[SECTION_NR_TO_ROOT(nr)])
| ^
include/linux/mmzone.h:1390:27: note: 'mem_section' declared here
1390 | extern struct mem_section mem_section[NR_SECTION_ROOTS][SECTIONS_PER_ROOT];
| ^~~~~~~~~~~
arch/arm/mm/copypage-feroceon.c: At top level:
>> arch/arm/mm/copypage-feroceon.c:65:6: warning: no previous prototype for 'feroceon_copy_user_highpage' [-Wmissing-prototypes]
65 | void feroceon_copy_user_highpage(struct page *to, struct page *from,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>> arch/arm/mm/copypage-feroceon.c:78:6: warning: no previous prototype for 'feroceon_clear_user_highpage' [-Wmissing-prototypes]
78 | void feroceon_clear_user_highpage(struct page *page, unsigned long vaddr)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
--
In file included from include/linux/topology.h:33,
from include/linux/irq.h:19,
from include/asm-generic/hardirq.h:17,
from arch/arm/include/asm/hardirq.h:10,
from include/linux/hardirq.h:11,
from include/linux/interrupt.h:11,
from include/linux/serial_core.h:13,
from arch/arm/mach-lpc32xx/serial.c:13:
include/linux/mmzone.h: In function '__nr_to_section':
include/linux/mmzone.h:1404:13: warning: the comparison will always evaluate as 'true' for the address of 'mem_section' will never be NULL [-Waddress]
1404 | if (!mem_section[SECTION_NR_TO_ROOT(nr)])
| ^
include/linux/mmzone.h:1390:27: note: 'mem_section' declared here
1390 | extern struct mem_section mem_section[NR_SECTION_ROOTS][SECTIONS_PER_ROOT];
| ^~~~~~~~~~~
arch/arm/mach-lpc32xx/serial.c: At top level:
>> arch/arm/mach-lpc32xx/serial.c:63:6: warning: no previous prototype for 'lpc32xx_loopback_set' [-Wmissing-prototypes]
63 | void lpc32xx_loopback_set(resource_size_t mapbase, int state)
| ^~~~~~~~~~~~~~~~~~~~
vim +/feroceon_copy_user_highpage +65 arch/arm/mm/copypage-feroceon.c
d73e60b7144a86 Russell King 2008-10-31 64
063b0a4207e43a Russell King 2008-10-31 @65 void feroceon_copy_user_highpage(struct page *to, struct page *from,
f00a75c094c340 Russell King 2009-10-05 66 unsigned long vaddr, struct vm_area_struct *vma)
063b0a4207e43a Russell King 2008-10-31 67 {
063b0a4207e43a Russell King 2008-10-31 68 void *kto, *kfrom;
063b0a4207e43a Russell King 2008-10-31 69
5472e862de2bc4 Cong Wang 2011-11-25 70 kto = kmap_atomic(to);
5472e862de2bc4 Cong Wang 2011-11-25 71 kfrom = kmap_atomic(from);
2725898fc9bb21 Russell King 2009-10-05 72 flush_cache_page(vma, vaddr, page_to_pfn(from));
063b0a4207e43a Russell King 2008-10-31 73 feroceon_copy_user_page(kto, kfrom);
5472e862de2bc4 Cong Wang 2011-11-25 74 kunmap_atomic(kfrom);
5472e862de2bc4 Cong Wang 2011-11-25 75 kunmap_atomic(kto);
063b0a4207e43a Russell King 2008-10-31 76 }
063b0a4207e43a Russell King 2008-10-31 77
303c6443659bc1 Russell King 2008-10-31 @78 void feroceon_clear_user_highpage(struct page *page, unsigned long vaddr)
d73e60b7144a86 Russell King 2008-10-31 79 {
5472e862de2bc4 Cong Wang 2011-11-25 80 void *ptr, *kaddr = kmap_atomic(page);
43ae286b7d4d8c Nicolas Pitre 2008-11-04 81 asm volatile ("\
43ae286b7d4d8c Nicolas Pitre 2008-11-04 82 mov r1, %2 \n\
d73e60b7144a86 Russell King 2008-10-31 83 mov r2, #0 \n\
d73e60b7144a86 Russell King 2008-10-31 84 mov r3, #0 \n\
d73e60b7144a86 Russell King 2008-10-31 85 mov r4, #0 \n\
d73e60b7144a86 Russell King 2008-10-31 86 mov r5, #0 \n\
d73e60b7144a86 Russell King 2008-10-31 87 mov r6, #0 \n\
d73e60b7144a86 Russell King 2008-10-31 88 mov r7, #0 \n\
d73e60b7144a86 Russell King 2008-10-31 89 mov ip, #0 \n\
d73e60b7144a86 Russell King 2008-10-31 90 mov lr, #0 \n\
303c6443659bc1 Russell King 2008-10-31 91 1: stmia %0, {r2-r7, ip, lr} \n\
d73e60b7144a86 Russell King 2008-10-31 92 subs r1, r1, #1 \n\
303c6443659bc1 Russell King 2008-10-31 93 mcr p15, 0, %0, c7, c14, 1 @ clean and invalidate D line\n\
43ae286b7d4d8c Nicolas Pitre 2008-11-04 94 add %0, %0, #32 \n\
d73e60b7144a86 Russell King 2008-10-31 95 bne 1b \n\
303c6443659bc1 Russell King 2008-10-31 96 mcr p15, 0, r1, c7, c10, 4 @ drain WB"
43ae286b7d4d8c Nicolas Pitre 2008-11-04 97 : "=r" (ptr)
43ae286b7d4d8c Nicolas Pitre 2008-11-04 98 : "0" (kaddr), "I" (PAGE_SIZE / 32)
303c6443659bc1 Russell King 2008-10-31 99 : "r1", "r2", "r3", "r4", "r5", "r6", "r7", "ip", "lr");
5472e862de2bc4 Cong Wang 2011-11-25 100 kunmap_atomic(kaddr);
d73e60b7144a86 Russell King 2008-10-31 101 }
d73e60b7144a86 Russell King 2008-10-31 102
:::::: The code at line 65 was first introduced by commit
:::::: 063b0a4207e43acbeff3d4b09f43e750e0212b48 [ARM] copypage: provide our own copy_user_highpage()
:::::: TO: Russell King <rmk@dyn-67.arm.linux.org.uk>
:::::: CC: Russell King <rmk+kernel@arm.linux.org.uk>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
^ permalink raw reply [flat|nested] 3+ messages in thread
* arch/arm/mm/copypage-feroceon.c:65:6: warning: no previous prototype for 'feroceon_copy_user_highpage'
@ 2022-06-11 16:12 kernel test robot
0 siblings, 0 replies; 3+ messages in thread
From: kernel test robot @ 2022-06-11 16:12 UTC (permalink / raw)
To: Arnd Bergmann; +Cc: kbuild-all, linux-kernel
Hi Arnd,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 0885eacdc81f920c3e0554d5615e69a66504a28d
commit: 7036440eab3e2d47a775d4616909f8235488d714 ARM: omap1: enable multiplatform
date: 8 days ago
config: arm-randconfig-r004-20220611 (https://download.01.org/0day-ci/archive/20220612/202206120025.LnzrdX8M-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 11.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7036440eab3e2d47a775d4616909f8235488d714
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 7036440eab3e2d47a775d4616909f8235488d714
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash arch/arm/mach-lpc32xx/ arch/arm/mach-versatile/ arch/arm/mm/ drivers/cpufreq/
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> arch/arm/mm/copypage-feroceon.c:65:6: warning: no previous prototype for 'feroceon_copy_user_highpage' [-Wmissing-prototypes]
65 | void feroceon_copy_user_highpage(struct page *to, struct page *from,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~
>> arch/arm/mm/copypage-feroceon.c:78:6: warning: no previous prototype for 'feroceon_clear_user_highpage' [-Wmissing-prototypes]
78 | void feroceon_clear_user_highpage(struct page *page, unsigned long vaddr)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
--
>> arch/arm/mach-lpc32xx/serial.c:63:6: warning: no previous prototype for 'lpc32xx_loopback_set' [-Wmissing-prototypes]
63 | void lpc32xx_loopback_set(resource_size_t mapbase, int state)
| ^~~~~~~~~~~~~~~~~~~~
--
>> arch/arm/mach-versatile/versatile.c:56:14: warning: no previous prototype for 'mmc_status' [-Wmissing-prototypes]
56 | unsigned int mmc_status(struct device *dev)
| ^~~~~~~~~~
--
>> drivers/cpufreq/davinci-cpufreq.c:151:12: warning: no previous prototype for 'davinci_cpufreq_init' [-Wmissing-prototypes]
151 | int __init davinci_cpufreq_init(void)
| ^~~~~~~~~~~~~~~~~~~~
vim +/feroceon_copy_user_highpage +65 arch/arm/mm/copypage-feroceon.c
d73e60b7144a86 Russell King 2008-10-31 64
063b0a4207e43a Russell King 2008-10-31 @65 void feroceon_copy_user_highpage(struct page *to, struct page *from,
f00a75c094c340 Russell King 2009-10-05 66 unsigned long vaddr, struct vm_area_struct *vma)
063b0a4207e43a Russell King 2008-10-31 67 {
063b0a4207e43a Russell King 2008-10-31 68 void *kto, *kfrom;
063b0a4207e43a Russell King 2008-10-31 69
5472e862de2bc4 Cong Wang 2011-11-25 70 kto = kmap_atomic(to);
5472e862de2bc4 Cong Wang 2011-11-25 71 kfrom = kmap_atomic(from);
2725898fc9bb21 Russell King 2009-10-05 72 flush_cache_page(vma, vaddr, page_to_pfn(from));
063b0a4207e43a Russell King 2008-10-31 73 feroceon_copy_user_page(kto, kfrom);
5472e862de2bc4 Cong Wang 2011-11-25 74 kunmap_atomic(kfrom);
5472e862de2bc4 Cong Wang 2011-11-25 75 kunmap_atomic(kto);
063b0a4207e43a Russell King 2008-10-31 76 }
063b0a4207e43a Russell King 2008-10-31 77
303c6443659bc1 Russell King 2008-10-31 @78 void feroceon_clear_user_highpage(struct page *page, unsigned long vaddr)
d73e60b7144a86 Russell King 2008-10-31 79 {
5472e862de2bc4 Cong Wang 2011-11-25 80 void *ptr, *kaddr = kmap_atomic(page);
43ae286b7d4d8c Nicolas Pitre 2008-11-04 81 asm volatile ("\
43ae286b7d4d8c Nicolas Pitre 2008-11-04 82 mov r1, %2 \n\
d73e60b7144a86 Russell King 2008-10-31 83 mov r2, #0 \n\
d73e60b7144a86 Russell King 2008-10-31 84 mov r3, #0 \n\
d73e60b7144a86 Russell King 2008-10-31 85 mov r4, #0 \n\
d73e60b7144a86 Russell King 2008-10-31 86 mov r5, #0 \n\
d73e60b7144a86 Russell King 2008-10-31 87 mov r6, #0 \n\
d73e60b7144a86 Russell King 2008-10-31 88 mov r7, #0 \n\
d73e60b7144a86 Russell King 2008-10-31 89 mov ip, #0 \n\
d73e60b7144a86 Russell King 2008-10-31 90 mov lr, #0 \n\
303c6443659bc1 Russell King 2008-10-31 91 1: stmia %0, {r2-r7, ip, lr} \n\
d73e60b7144a86 Russell King 2008-10-31 92 subs r1, r1, #1 \n\
303c6443659bc1 Russell King 2008-10-31 93 mcr p15, 0, %0, c7, c14, 1 @ clean and invalidate D line\n\
43ae286b7d4d8c Nicolas Pitre 2008-11-04 94 add %0, %0, #32 \n\
d73e60b7144a86 Russell King 2008-10-31 95 bne 1b \n\
303c6443659bc1 Russell King 2008-10-31 96 mcr p15, 0, r1, c7, c10, 4 @ drain WB"
43ae286b7d4d8c Nicolas Pitre 2008-11-04 97 : "=r" (ptr)
43ae286b7d4d8c Nicolas Pitre 2008-11-04 98 : "0" (kaddr), "I" (PAGE_SIZE / 32)
303c6443659bc1 Russell King 2008-10-31 99 : "r1", "r2", "r3", "r4", "r5", "r6", "r7", "ip", "lr");
5472e862de2bc4 Cong Wang 2011-11-25 100 kunmap_atomic(kaddr);
d73e60b7144a86 Russell King 2008-10-31 101 }
d73e60b7144a86 Russell King 2008-10-31 102
:::::: The code at line 65 was first introduced by commit
:::::: 063b0a4207e43acbeff3d4b09f43e750e0212b48 [ARM] copypage: provide our own copy_user_highpage()
:::::: TO: Russell King <rmk@dyn-67.arm.linux.org.uk>
:::::: CC: Russell King <rmk+kernel@arm.linux.org.uk>
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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