* Re: [PATCH v4 2/5] Replace generic memcpy and memset by IO memcpy functions
[not found] <20240924092223.534040-3-jvetter@kalrayinc.com>
@ 2024-09-24 20:25 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2024-09-24 20:25 UTC (permalink / raw)
To: Julian Vetter, Arnd Bergmann, Catalin Marinas, Will Deacon,
Guo Ren, Huacai Chen, WANG Xuerui, Andrew Morton
Cc: llvm, oe-kbuild-all, Linux Memory Management List,
linux-arm-kernel, linux-kernel, linux-csky, loongarch,
Yann Sionneau, Julian Vetter
Hi Julian,
kernel test robot noticed the following build errors:
[auto build test ERROR on akpm-mm/mm-nonmm-unstable]
[also build test ERROR on arm64/for-next/core soc/for-next linus/master v6.11 next-20240924]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Julian-Vetter/Consolidate-__memcpy_-to-from-io-and-__memset_io-into-a-single-lib/20240924-172751
base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-nonmm-unstable
patch link: https://lore.kernel.org/r/20240924092223.534040-3-jvetter%40kalrayinc.com
patch subject: [PATCH v4 2/5] Replace generic memcpy and memset by IO memcpy functions
config: um-x86_64_defconfig (https://download.01.org/0day-ci/archive/20240925/202409250346.N624LLrr-lkp@intel.com/config)
compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240925/202409250346.N624LLrr-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202409250346.N624LLrr-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from kernel/time/time.c:31:
In file included from include/linux/timekeeper_internal.h:10:
In file included from include/linux/clocksource.h:22:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __raw_readb(PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
^
In file included from kernel/time/time.c:31:
In file included from include/linux/timekeeper_internal.h:10:
In file included from include/linux/clocksource.h:22:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from kernel/time/time.c:31:
In file included from include/linux/timekeeper_internal.h:10:
In file included from include/linux/clocksource.h:22:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:693:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:701:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:709:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:718:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:727:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:736:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
>> include/asm-generic/io.h:1166:2: error: call to undeclared function '__memset_io'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
__memset_io(__io_virt(addr), value, size);
^
include/asm-generic/io.h:1166:2: note: did you mean 'memset_io'?
include/asm-generic/io.h:1163:20: note: 'memset_io' declared here
static inline void memset_io(volatile void __iomem *addr, int value,
^
include/asm-generic/io.h:1154:19: note: expanded from macro 'memset_io'
#define memset_io memset_io
^
>> include/asm-generic/io.h:1184:2: error: call to undeclared function '__memcpy_fromio'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
__memcpy_fromio(buffer, __io_virt(addr), size);
^
include/asm-generic/io.h:1184:2: note: did you mean 'memcpy_fromio'?
include/asm-generic/io.h:1180:20: note: 'memcpy_fromio' declared here
static inline void memcpy_fromio(void *buffer,
^
include/asm-generic/io.h:1171:23: note: expanded from macro 'memcpy_fromio'
#define memcpy_fromio memcpy_fromio
^
>> include/asm-generic/io.h:1201:2: error: call to undeclared function '__memcpy_toio'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
__memcpy_toio(__io_virt(addr), buffer, size);
^
include/asm-generic/io.h:1201:2: note: did you mean 'memcpy_toio'?
include/asm-generic/io.h:1198:20: note: 'memcpy_toio' declared here
static inline void memcpy_toio(volatile void __iomem *addr, const void *buffer,
^
include/asm-generic/io.h:1189:21: note: expanded from macro 'memcpy_toio'
#define memcpy_toio memcpy_toio
^
12 warnings and 3 errors generated.
--
In file included from kernel/time/hrtimer.c:30:
In file included from include/linux/syscalls.h:93:
In file included from include/trace/syscall.h:7:
In file included from include/linux/trace_events.h:9:
In file included from include/linux/hardirq.h:11:
In file included from arch/um/include/asm/hardirq.h:5:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:14:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __raw_readb(PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) ((__force __u16)(__le16)(x))
^
In file included from kernel/time/hrtimer.c:30:
In file included from include/linux/syscalls.h:93:
In file included from include/trace/syscall.h:7:
In file included from include/linux/trace_events.h:9:
In file included from include/linux/hardirq.h:11:
In file included from arch/um/include/asm/hardirq.h:5:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:14:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) ((__force __u32)(__le32)(x))
^
In file included from kernel/time/hrtimer.c:30:
In file included from include/linux/syscalls.h:93:
In file included from include/trace/syscall.h:7:
In file included from include/linux/trace_events.h:9:
In file included from include/linux/hardirq.h:11:
In file included from arch/um/include/asm/hardirq.h:5:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:14:
In file included from arch/um/include/asm/io.h:24:
include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:693:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:701:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:709:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:718:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:727:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:736:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
>> include/asm-generic/io.h:1166:2: error: call to undeclared function '__memset_io'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
__memset_io(__io_virt(addr), value, size);
^
include/asm-generic/io.h:1166:2: note: did you mean 'memset_io'?
include/asm-generic/io.h:1163:20: note: 'memset_io' declared here
static inline void memset_io(volatile void __iomem *addr, int value,
^
include/asm-generic/io.h:1154:19: note: expanded from macro 'memset_io'
#define memset_io memset_io
^
>> include/asm-generic/io.h:1184:2: error: call to undeclared function '__memcpy_fromio'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
__memcpy_fromio(buffer, __io_virt(addr), size);
^
include/asm-generic/io.h:1184:2: note: did you mean 'memcpy_fromio'?
include/asm-generic/io.h:1180:20: note: 'memcpy_fromio' declared here
static inline void memcpy_fromio(void *buffer,
^
include/asm-generic/io.h:1171:23: note: expanded from macro 'memcpy_fromio'
#define memcpy_fromio memcpy_fromio
^
>> include/asm-generic/io.h:1201:2: error: call to undeclared function '__memcpy_toio'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
__memcpy_toio(__io_virt(addr), buffer, size);
^
include/asm-generic/io.h:1201:2: note: did you mean 'memcpy_toio'?
include/asm-generic/io.h:1198:20: note: 'memcpy_toio' declared here
static inline void memcpy_toio(volatile void __iomem *addr, const void *buffer,
^
include/asm-generic/io.h:1189:21: note: expanded from macro 'memcpy_toio'
#define memcpy_toio memcpy_toio
^
kernel/time/hrtimer.c:121:21: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
[CLOCK_REALTIME] = HRTIMER_BASE_REALTIME,
^~~~~~~~~~~~~~~~~~~~~
kernel/time/hrtimer.c:119:27: note: previous initialization is here
[0 ... MAX_CLOCKS - 1] = HRTIMER_MAX_CLOCK_BASES,
^~~~~~~~~~~~~~~~~~~~~~~
kernel/time/hrtimer.c:122:22: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
[CLOCK_MONOTONIC] = HRTIMER_BASE_MONOTONIC,
^~~~~~~~~~~~~~~~~~~~~~
kernel/time/hrtimer.c:119:27: note: previous initialization is here
[0 ... MAX_CLOCKS - 1] = HRTIMER_MAX_CLOCK_BASES,
^~~~~~~~~~~~~~~~~~~~~~~
kernel/time/hrtimer.c:123:21: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
[CLOCK_BOOTTIME] = HRTIMER_BASE_BOOTTIME,
^~~~~~~~~~~~~~~~~~~~~
kernel/time/hrtimer.c:119:27: note: previous initialization is here
[0 ... MAX_CLOCKS - 1] = HRTIMER_MAX_CLOCK_BASES,
^~~~~~~~~~~~~~~~~~~~~~~
kernel/time/hrtimer.c:124:17: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
[CLOCK_TAI] = HRTIMER_BASE_TAI,
^~~~~~~~~~~~~~~~
kernel/time/hrtimer.c:119:27: note: previous initialization is here
[0 ... MAX_CLOCKS - 1] = HRTIMER_MAX_CLOCK_BASES,
^~~~~~~~~~~~~~~~~~~~~~~
16 warnings and 3 errors generated.
vim +/__memset_io +1166 include/asm-generic/io.h
1152
1153 #ifndef memset_io
1154 #define memset_io memset_io
1155 /**
1156 * memset_io Set a range of I/O memory to a constant value
1157 * @addr: The beginning of the I/O-memory range to set
1158 * @val: The value to set the memory to
1159 * @count: The number of bytes to set
1160 *
1161 * Set a range of I/O memory to a given value.
1162 */
1163 static inline void memset_io(volatile void __iomem *addr, int value,
1164 size_t size)
1165 {
> 1166 __memset_io(__io_virt(addr), value, size);
1167 }
1168 #endif
1169
1170 #ifndef memcpy_fromio
1171 #define memcpy_fromio memcpy_fromio
1172 /**
1173 * memcpy_fromio Copy a block of data from I/O memory
1174 * @dst: The (RAM) destination for the copy
1175 * @src: The (I/O memory) source for the data
1176 * @count: The number of bytes to copy
1177 *
1178 * Copy a block of data from I/O memory.
1179 */
1180 static inline void memcpy_fromio(void *buffer,
1181 const volatile void __iomem *addr,
1182 size_t size)
1183 {
> 1184 __memcpy_fromio(buffer, __io_virt(addr), size);
1185 }
1186 #endif
1187
1188 #ifndef memcpy_toio
1189 #define memcpy_toio memcpy_toio
1190 /**
1191 * memcpy_toio Copy a block of data into I/O memory
1192 * @dst: The (I/O memory) destination for the copy
1193 * @src: The (RAM) source for the data
1194 * @count: The number of bytes to copy
1195 *
1196 * Copy a block of data to I/O memory.
1197 */
1198 static inline void memcpy_toio(volatile void __iomem *addr, const void *buffer,
1199 size_t size)
1200 {
> 1201 __memcpy_toio(__io_virt(addr), buffer, size);
1202 }
1203 #endif
1204
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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