From: kernel test robot <lkp@intel.com>
To: Ignacio Encinas <ignacio@iencinas.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Alexandre Ghiti <alex@ghiti.fr>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
linux-kernel-mentees@lists.linux.dev, skhan@linuxfoundation.org,
linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
Ignacio Encinas <ignacio@iencinas.com>
Subject: Re: [PATCH v5] riscv: introduce asm/swab.h
Date: Sat, 19 Jul 2025 00:26:55 +0800 [thread overview]
Message-ID: <202507190051.ejnrjSs3-lkp@intel.com> (raw)
In-Reply-To: <20250717-riscv-swab-v5-1-1d5bb7c42f38@iencinas.com>
Hi Ignacio,
kernel test robot noticed the following build errors:
[auto build test ERROR on 155a3c003e555a7300d156a5252c004c392ec6b0]
url: https://github.com/intel-lab-lkp/linux/commits/Ignacio-Encinas/riscv-introduce-asm-swab-h/20250718-024715
base: 155a3c003e555a7300d156a5252c004c392ec6b0
patch link: https://lore.kernel.org/r/20250717-riscv-swab-v5-1-1d5bb7c42f38%40iencinas.com
patch subject: [PATCH v5] riscv: introduce asm/swab.h
config: riscv-allyesconfig (https://download.01.org/0day-ci/archive/20250719/202507190051.ejnrjSs3-lkp@intel.com/config)
compiler: clang version 16.0.6 (https://github.com/llvm/llvm-project 7cbf1a2591520c2491aa35339f227775f4d3adf6)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250719/202507190051.ejnrjSs3-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/202507190051.ejnrjSs3-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from lib/decompress_unlzo.c:28:
In file included from include/linux/decompress/mm.h:79:
In file included from include/linux/kernel.h:23:
In file included from include/linux/bitops.h:28:
In file included from include/asm-generic/bitops/generic-non-atomic.h:7:
In file included from arch/riscv/include/asm/barrier.h:14:
In file included from arch/riscv/include/asm/cmpxchg.h:9:
In file included from include/linux/bug.h:5:
In file included from arch/riscv/include/asm/bug.h:83:
In file included from include/asm-generic/bug.h:22:
In file included from include/linux/printk.h:9:
In file included from include/linux/ratelimit_types.h:7:
In file included from include/linux/spinlock_types_raw.h:7:
In file included from ./arch/riscv/include/generated/asm/spinlock_types.h:1:
In file included from include/asm-generic/spinlock_types.h:7:
In file included from include/asm-generic/qrwlock_types.h:6:
In file included from arch/riscv/include/uapi/asm/byteorder.h:10:
In file included from include/linux/byteorder/little_endian.h:5:
In file included from include/uapi/linux/byteorder/little_endian.h:14:
In file included from include/linux/swab.h:5:
In file included from include/uapi/linux/swab.h:8:
arch/riscv/include/asm/swab.h:53:9: warning: unknown option, expected 'push', 'pop', 'rvc', 'norvc', 'relax' or 'norelax' [-Winline-asm]
return ARCH_SWAB(16, value);
^
arch/riscv/include/asm/swab.h:40:11: note: expanded from macro 'ARCH_SWAB'
".option arch,+zbb\n" \
^
<inline asm>:2:9: note: instantiated into assembly here
.option arch,+zbb
^
In file included from lib/decompress_unlzo.c:28:
In file included from include/linux/decompress/mm.h:79:
In file included from include/linux/kernel.h:23:
In file included from include/linux/bitops.h:28:
In file included from include/asm-generic/bitops/generic-non-atomic.h:7:
In file included from arch/riscv/include/asm/barrier.h:14:
In file included from arch/riscv/include/asm/cmpxchg.h:9:
In file included from include/linux/bug.h:5:
In file included from arch/riscv/include/asm/bug.h:83:
In file included from include/asm-generic/bug.h:22:
In file included from include/linux/printk.h:9:
In file included from include/linux/ratelimit_types.h:7:
In file included from include/linux/spinlock_types_raw.h:7:
In file included from ./arch/riscv/include/generated/asm/spinlock_types.h:1:
In file included from include/asm-generic/spinlock_types.h:7:
In file included from include/asm-generic/qrwlock_types.h:6:
In file included from arch/riscv/include/uapi/asm/byteorder.h:10:
In file included from include/linux/byteorder/little_endian.h:5:
In file included from include/uapi/linux/byteorder/little_endian.h:14:
In file included from include/linux/swab.h:5:
In file included from include/uapi/linux/swab.h:8:
>> arch/riscv/include/asm/swab.h:53:9: error: instruction requires the following: 'Zbb' (Basic Bit-Manipulation) or 'Zbkb' (Bitmanip instructions for Cryptography)
return ARCH_SWAB(16, value);
^
arch/riscv/include/asm/swab.h:41:11: note: expanded from macro 'ARCH_SWAB'
"rev8 %0, %1\n" \
^
<inline asm>:3:1: note: instantiated into assembly here
rev8 a0, s1
^
In file included from lib/decompress_unlzo.c:28:
In file included from include/linux/decompress/mm.h:79:
In file included from include/linux/kernel.h:23:
In file included from include/linux/bitops.h:28:
In file included from include/asm-generic/bitops/generic-non-atomic.h:7:
In file included from arch/riscv/include/asm/barrier.h:14:
In file included from arch/riscv/include/asm/cmpxchg.h:9:
In file included from include/linux/bug.h:5:
In file included from arch/riscv/include/asm/bug.h:83:
In file included from include/asm-generic/bug.h:22:
In file included from include/linux/printk.h:9:
In file included from include/linux/ratelimit_types.h:7:
In file included from include/linux/spinlock_types_raw.h:7:
In file included from ./arch/riscv/include/generated/asm/spinlock_types.h:1:
In file included from include/asm-generic/spinlock_types.h:7:
In file included from include/asm-generic/qrwlock_types.h:6:
In file included from arch/riscv/include/uapi/asm/byteorder.h:10:
In file included from include/linux/byteorder/little_endian.h:5:
In file included from include/uapi/linux/byteorder/little_endian.h:14:
In file included from include/linux/swab.h:5:
In file included from include/uapi/linux/swab.h:8:
arch/riscv/include/asm/swab.h:58:9: warning: unknown option, expected 'push', 'pop', 'rvc', 'norvc', 'relax' or 'norelax' [-Winline-asm]
return ARCH_SWAB(32, value);
^
arch/riscv/include/asm/swab.h:40:11: note: expanded from macro 'ARCH_SWAB'
".option arch,+zbb\n" \
^
<inline asm>:2:9: note: instantiated into assembly here
.option arch,+zbb
^
In file included from lib/decompress_unlzo.c:28:
In file included from include/linux/decompress/mm.h:79:
In file included from include/linux/kernel.h:23:
In file included from include/linux/bitops.h:28:
In file included from include/asm-generic/bitops/generic-non-atomic.h:7:
In file included from arch/riscv/include/asm/barrier.h:14:
In file included from arch/riscv/include/asm/cmpxchg.h:9:
In file included from include/linux/bug.h:5:
In file included from arch/riscv/include/asm/bug.h:83:
In file included from include/asm-generic/bug.h:22:
In file included from include/linux/printk.h:9:
In file included from include/linux/ratelimit_types.h:7:
In file included from include/linux/spinlock_types_raw.h:7:
In file included from ./arch/riscv/include/generated/asm/spinlock_types.h:1:
In file included from include/asm-generic/spinlock_types.h:7:
In file included from include/asm-generic/qrwlock_types.h:6:
In file included from arch/riscv/include/uapi/asm/byteorder.h:10:
In file included from include/linux/byteorder/little_endian.h:5:
In file included from include/uapi/linux/byteorder/little_endian.h:14:
In file included from include/linux/swab.h:5:
In file included from include/uapi/linux/swab.h:8:
arch/riscv/include/asm/swab.h:58:9: error: instruction requires the following: 'Zbb' (Basic Bit-Manipulation) or 'Zbkb' (Bitmanip instructions for Cryptography)
return ARCH_SWAB(32, value);
^
arch/riscv/include/asm/swab.h:41:11: note: expanded from macro 'ARCH_SWAB'
"rev8 %0, %1\n" \
^
<inline asm>:3:1: note: instantiated into assembly here
rev8 a0, s1
^
In file included from lib/decompress_unlzo.c:28:
In file included from include/linux/decompress/mm.h:79:
In file included from include/linux/kernel.h:23:
In file included from include/linux/bitops.h:28:
In file included from include/asm-generic/bitops/generic-non-atomic.h:7:
In file included from arch/riscv/include/asm/barrier.h:14:
In file included from arch/riscv/include/asm/cmpxchg.h:9:
In file included from include/linux/bug.h:5:
In file included from arch/riscv/include/asm/bug.h:83:
In file included from include/asm-generic/bug.h:22:
In file included from include/linux/printk.h:9:
In file included from include/linux/ratelimit_types.h:7:
In file included from include/linux/spinlock_types_raw.h:7:
In file included from ./arch/riscv/include/generated/asm/spinlock_types.h:1:
In file included from include/asm-generic/spinlock_types.h:7:
In file included from include/asm-generic/qrwlock_types.h:6:
In file included from arch/riscv/include/uapi/asm/byteorder.h:10:
In file included from include/linux/byteorder/little_endian.h:5:
In file included from include/uapi/linux/byteorder/little_endian.h:14:
In file included from include/linux/swab.h:5:
In file included from include/uapi/linux/swab.h:8:
arch/riscv/include/asm/swab.h:58:9: warning: unknown option, expected 'push', 'pop', 'rvc', 'norvc', 'relax' or 'norelax' [-Winline-asm]
return ARCH_SWAB(32, value);
^
arch/riscv/include/asm/swab.h:40:11: note: expanded from macro 'ARCH_SWAB'
".option arch,+zbb\n" \
^
<inline asm>:2:9: note: instantiated into assembly here
.option arch,+zbb
^
In file included from lib/decompress_unlzo.c:28:
In file included from include/linux/decompress/mm.h:79:
--
In file included from include/linux/ratelimit_types.h:7:
In file included from include/linux/spinlock_types_raw.h:7:
In file included from ./arch/riscv/include/generated/asm/spinlock_types.h:1:
In file included from include/asm-generic/spinlock_types.h:7:
In file included from include/asm-generic/qrwlock_types.h:6:
In file included from arch/riscv/include/uapi/asm/byteorder.h:10:
In file included from include/linux/byteorder/little_endian.h:5:
In file included from include/uapi/linux/byteorder/little_endian.h:14:
In file included from include/linux/swab.h:5:
In file included from include/uapi/linux/swab.h:8:
arch/riscv/include/asm/swab.h:58:9: warning: unknown option, expected 'push', 'pop', 'rvc', 'norvc', 'relax' or 'norelax' [-Winline-asm]
return ARCH_SWAB(32, value);
^
arch/riscv/include/asm/swab.h:40:11: note: expanded from macro 'ARCH_SWAB'
".option arch,+zbb\n" \
^
<inline asm>:2:9: note: instantiated into assembly here
.option arch,+zbb
^
In file included from lib/vsprintf.c:22:
In file included from include/linux/clk.h:13:
In file included from include/linux/kernel.h:23:
In file included from include/linux/bitops.h:28:
In file included from include/asm-generic/bitops/generic-non-atomic.h:7:
In file included from arch/riscv/include/asm/barrier.h:14:
In file included from arch/riscv/include/asm/cmpxchg.h:9:
In file included from include/linux/bug.h:5:
In file included from arch/riscv/include/asm/bug.h:83:
In file included from include/asm-generic/bug.h:22:
In file included from include/linux/printk.h:9:
In file included from include/linux/ratelimit_types.h:7:
In file included from include/linux/spinlock_types_raw.h:7:
In file included from ./arch/riscv/include/generated/asm/spinlock_types.h:1:
In file included from include/asm-generic/spinlock_types.h:7:
In file included from include/asm-generic/qrwlock_types.h:6:
In file included from arch/riscv/include/uapi/asm/byteorder.h:10:
In file included from include/linux/byteorder/little_endian.h:5:
In file included from include/uapi/linux/byteorder/little_endian.h:14:
In file included from include/linux/swab.h:5:
In file included from include/uapi/linux/swab.h:8:
arch/riscv/include/asm/swab.h:58:9: error: instruction requires the following: 'Zbb' (Basic Bit-Manipulation) or 'Zbkb' (Bitmanip instructions for Cryptography)
return ARCH_SWAB(32, value);
^
arch/riscv/include/asm/swab.h:41:11: note: expanded from macro 'ARCH_SWAB'
"rev8 %0, %1\n" \
^
<inline asm>:3:1: note: instantiated into assembly here
rev8 a0, s7
^
In file included from lib/vsprintf.c:22:
In file included from include/linux/clk.h:13:
In file included from include/linux/kernel.h:23:
In file included from include/linux/bitops.h:28:
In file included from include/asm-generic/bitops/generic-non-atomic.h:7:
In file included from arch/riscv/include/asm/barrier.h:14:
In file included from arch/riscv/include/asm/cmpxchg.h:9:
In file included from include/linux/bug.h:5:
In file included from arch/riscv/include/asm/bug.h:83:
In file included from include/asm-generic/bug.h:22:
In file included from include/linux/printk.h:9:
In file included from include/linux/ratelimit_types.h:7:
In file included from include/linux/spinlock_types_raw.h:7:
In file included from ./arch/riscv/include/generated/asm/spinlock_types.h:1:
In file included from include/asm-generic/spinlock_types.h:7:
In file included from include/asm-generic/qrwlock_types.h:6:
In file included from arch/riscv/include/uapi/asm/byteorder.h:10:
In file included from include/linux/byteorder/little_endian.h:5:
In file included from include/uapi/linux/byteorder/little_endian.h:14:
In file included from include/linux/swab.h:5:
In file included from include/uapi/linux/swab.h:8:
arch/riscv/include/asm/swab.h:53:9: warning: unknown option, expected 'push', 'pop', 'rvc', 'norvc', 'relax' or 'norelax' [-Winline-asm]
return ARCH_SWAB(16, value);
^
arch/riscv/include/asm/swab.h:40:11: note: expanded from macro 'ARCH_SWAB'
".option arch,+zbb\n" \
^
<inline asm>:2:9: note: instantiated into assembly here
.option arch,+zbb
^
In file included from lib/vsprintf.c:22:
In file included from include/linux/clk.h:13:
In file included from include/linux/kernel.h:23:
In file included from include/linux/bitops.h:28:
In file included from include/asm-generic/bitops/generic-non-atomic.h:7:
In file included from arch/riscv/include/asm/barrier.h:14:
In file included from arch/riscv/include/asm/cmpxchg.h:9:
In file included from include/linux/bug.h:5:
In file included from arch/riscv/include/asm/bug.h:83:
In file included from include/asm-generic/bug.h:22:
In file included from include/linux/printk.h:9:
In file included from include/linux/ratelimit_types.h:7:
In file included from include/linux/spinlock_types_raw.h:7:
In file included from ./arch/riscv/include/generated/asm/spinlock_types.h:1:
In file included from include/asm-generic/spinlock_types.h:7:
In file included from include/asm-generic/qrwlock_types.h:6:
In file included from arch/riscv/include/uapi/asm/byteorder.h:10:
In file included from include/linux/byteorder/little_endian.h:5:
In file included from include/uapi/linux/byteorder/little_endian.h:14:
In file included from include/linux/swab.h:5:
In file included from include/uapi/linux/swab.h:8:
>> arch/riscv/include/asm/swab.h:53:9: error: instruction requires the following: 'Zbb' (Basic Bit-Manipulation) or 'Zbkb' (Bitmanip instructions for Cryptography)
return ARCH_SWAB(16, value);
^
arch/riscv/include/asm/swab.h:41:11: note: expanded from macro 'ARCH_SWAB'
"rev8 %0, %1\n" \
^
<inline asm>:3:1: note: instantiated into assembly here
rev8 a0, s2
^
In file included from lib/vsprintf.c:22:
In file included from include/linux/clk.h:13:
In file included from include/linux/kernel.h:23:
In file included from include/linux/bitops.h:28:
In file included from include/asm-generic/bitops/generic-non-atomic.h:7:
In file included from arch/riscv/include/asm/barrier.h:14:
In file included from arch/riscv/include/asm/cmpxchg.h:9:
In file included from include/linux/bug.h:5:
In file included from arch/riscv/include/asm/bug.h:83:
In file included from include/asm-generic/bug.h:22:
In file included from include/linux/printk.h:9:
In file included from include/linux/ratelimit_types.h:7:
In file included from include/linux/spinlock_types_raw.h:7:
In file included from ./arch/riscv/include/generated/asm/spinlock_types.h:1:
In file included from include/asm-generic/spinlock_types.h:7:
In file included from include/asm-generic/qrwlock_types.h:6:
In file included from arch/riscv/include/uapi/asm/byteorder.h:10:
In file included from include/linux/byteorder/little_endian.h:5:
In file included from include/uapi/linux/byteorder/little_endian.h:14:
In file included from include/linux/swab.h:5:
In file included from include/uapi/linux/swab.h:8:
arch/riscv/include/asm/swab.h:53:9: warning: unknown option, expected 'push', 'pop', 'rvc', 'norvc', 'relax' or 'norelax' [-Winline-asm]
return ARCH_SWAB(16, value);
^
arch/riscv/include/asm/swab.h:40:11: note: expanded from macro 'ARCH_SWAB'
".option arch,+zbb\n" \
^
<inline asm>:2:9: note: instantiated into assembly here
.option arch,+zbb
^
In file included from lib/vsprintf.c:22:
In file included from include/linux/clk.h:13:
In file included from include/linux/kernel.h:23:
In file included from include/linux/bitops.h:28:
In file included from include/asm-generic/bitops/generic-non-atomic.h:7:
In file included from arch/riscv/include/asm/barrier.h:14:
In file included from arch/riscv/include/asm/cmpxchg.h:9:
In file included from include/linux/bug.h:5:
In file included from arch/riscv/include/asm/bug.h:83:
In file included from include/asm-generic/bug.h:22:
In file included from include/linux/printk.h:9:
In file included from include/linux/ratelimit_types.h:7:
In file included from include/linux/spinlock_types_raw.h:7:
In file included from ./arch/riscv/include/generated/asm/spinlock_types.h:1:
In file included from include/asm-generic/spinlock_types.h:7:
In file included from include/asm-generic/qrwlock_types.h:6:
In file included from arch/riscv/include/uapi/asm/byteorder.h:10:
In file included from include/linux/byteorder/little_endian.h:5:
In file included from include/uapi/linux/byteorder/little_endian.h:14:
In file included from include/linux/swab.h:5:
In file included from include/uapi/linux/swab.h:8:
>> arch/riscv/include/asm/swab.h:53:9: error: instruction requires the following: 'Zbb' (Basic Bit-Manipulation) or 'Zbkb' (Bitmanip instructions for Cryptography)
return ARCH_SWAB(16, value);
^
arch/riscv/include/asm/swab.h:41:11: note: expanded from macro 'ARCH_SWAB'
"rev8 %0, %1\n" \
^
<inline asm>:3:1: note: instantiated into assembly here
rev8 a0, s2
^
In file included from lib/vsprintf.c:22:
In file included from include/linux/clk.h:13:
In file included from include/linux/kernel.h:23:
In file included from include/linux/bitops.h:28:
In file included from include/asm-generic/bitops/generic-non-atomic.h:7:
In file included from arch/riscv/include/asm/barrier.h:14:
In file included from arch/riscv/include/asm/cmpxchg.h:9:
In file included from include/linux/bug.h:5:
In file included from arch/riscv/include/asm/bug.h:83:
In file included from include/asm-generic/bug.h:22:
In file included from include/linux/printk.h:9:
In file included from include/linux/ratelimit_types.h:7:
In file included from include/linux/spinlock_types_raw.h:7:
In file included from ./arch/riscv/include/generated/asm/spinlock_types.h:1:
In file included from include/asm-generic/spinlock_types.h:7:
In file included from include/asm-generic/qrwlock_types.h:6:
In file included from arch/riscv/include/uapi/asm/byteorder.h:10:
In file included from include/linux/byteorder/little_endian.h:5:
In file included from include/uapi/linux/byteorder/little_endian.h:14:
In file included from include/linux/swab.h:5:
In file included from include/uapi/linux/swab.h:8:
arch/riscv/include/asm/swab.h:58:9: warning: unknown option, expected 'push', 'pop', 'rvc', 'norvc', 'relax' or 'norelax' [-Winline-asm]
return ARCH_SWAB(32, value);
^
arch/riscv/include/asm/swab.h:40:11: note: expanded from macro 'ARCH_SWAB'
".option arch,+zbb\n" \
^
<inline asm>:2:9: note: instantiated into assembly here
.option arch,+zbb
^
In file included from lib/vsprintf.c:22:
In file included from include/linux/clk.h:13:
In file included from include/linux/kernel.h:23:
In file included from include/linux/bitops.h:28:
In file included from include/asm-generic/bitops/generic-non-atomic.h:7:
In file included from arch/riscv/include/asm/barrier.h:14:
In file included from arch/riscv/include/asm/cmpxchg.h:9:
In file included from include/linux/bug.h:5:
In file included from arch/riscv/include/asm/bug.h:83:
In file included from include/asm-generic/bug.h:22:
In file included from include/linux/printk.h:9:
In file included from include/linux/ratelimit_types.h:7:
In file included from include/linux/spinlock_types_raw.h:7:
In file included from ./arch/riscv/include/generated/asm/spinlock_types.h:1:
In file included from include/asm-generic/spinlock_types.h:7:
In file included from include/asm-generic/qrwlock_types.h:6:
In file included from arch/riscv/include/uapi/asm/byteorder.h:10:
In file included from include/linux/byteorder/little_endian.h:5:
In file included from include/uapi/linux/byteorder/little_endian.h:14:
In file included from include/linux/swab.h:5:
In file included from include/uapi/linux/swab.h:8:
arch/riscv/include/asm/swab.h:58:9: error: instruction requires the following: 'Zbb' (Basic Bit-Manipulation) or 'Zbkb' (Bitmanip instructions for Cryptography)
return ARCH_SWAB(32, value);
^
arch/riscv/include/asm/swab.h:41:11: note: expanded from macro 'ARCH_SWAB'
"rev8 %0, %1\n" \
^
<inline asm>:3:1: note: instantiated into assembly here
rev8 a0, s1
^
In file included from lib/vsprintf.c:22:
In file included from include/linux/clk.h:13:
In file included from include/linux/kernel.h:23:
In file included from include/linux/bitops.h:28:
In file included from include/asm-generic/bitops/generic-non-atomic.h:7:
In file included from arch/riscv/include/asm/barrier.h:14:
In file included from arch/riscv/include/asm/cmpxchg.h:9:
In file included from include/linux/bug.h:5:
In file included from arch/riscv/include/asm/bug.h:83:
In file included from include/asm-generic/bug.h:22:
In file included from include/linux/printk.h:9:
In file included from include/linux/ratelimit_types.h:7:
In file included from include/linux/spinlock_types_raw.h:7:
In file included from ./arch/riscv/include/generated/asm/spinlock_types.h:1:
In file included from include/asm-generic/spinlock_types.h:7:
In file included from include/asm-generic/qrwlock_types.h:6:
In file included from arch/riscv/include/uapi/asm/byteorder.h:10:
In file included from include/linux/byteorder/little_endian.h:5:
In file included from include/uapi/linux/byteorder/little_endian.h:14:
In file included from include/linux/swab.h:5:
In file included from include/uapi/linux/swab.h:8:
arch/riscv/include/asm/swab.h:53:9: warning: unknown option, expected 'push', 'pop', 'rvc', 'norvc', 'relax' or 'norelax' [-Winline-asm]
return ARCH_SWAB(16, value);
^
arch/riscv/include/asm/swab.h:40:11: note: expanded from macro 'ARCH_SWAB'
".option arch,+zbb\n" \
^
<inline asm>:2:9: note: instantiated into assembly here
.option arch,+zbb
^
In file included from lib/vsprintf.c:22:
In file included from include/linux/clk.h:13:
In file included from include/linux/kernel.h:23:
In file included from include/linux/bitops.h:28:
In file included from include/asm-generic/bitops/generic-non-atomic.h:7:
In file included from arch/riscv/include/asm/barrier.h:14:
In file included from arch/riscv/include/asm/cmpxchg.h:9:
In file included from include/linux/bug.h:5:
In file included from arch/riscv/include/asm/bug.h:83:
In file included from include/asm-generic/bug.h:22:
In file included from include/linux/printk.h:9:
In file included from include/linux/ratelimit_types.h:7:
In file included from include/linux/spinlock_types_raw.h:7:
In file included from ./arch/riscv/include/generated/asm/spinlock_types.h:1:
In file included from include/asm-generic/spinlock_types.h:7:
In file included from include/asm-generic/qrwlock_types.h:6:
In file included from arch/riscv/include/uapi/asm/byteorder.h:10:
In file included from include/linux/byteorder/little_endian.h:5:
In file included from include/uapi/linux/byteorder/little_endian.h:14:
In file included from include/linux/swab.h:5:
In file included from include/uapi/linux/swab.h:8:
>> arch/riscv/include/asm/swab.h:53:9: error: instruction requires the following: 'Zbb' (Basic Bit-Manipulation) or 'Zbkb' (Bitmanip instructions for Cryptography)
return ARCH_SWAB(16, value);
^
arch/riscv/include/asm/swab.h:41:11: note: expanded from macro 'ARCH_SWAB'
"rev8 %0, %1\n" \
^
<inline asm>:3:1: note: instantiated into assembly here
rev8 s1, s1
^
7 warnings and 7 errors generated.
..
vim +53 arch/riscv/include/asm/swab.h
50
51 static __always_inline __u16 __arch_swab16(__u16 value)
52 {
> 53 return ARCH_SWAB(16, value);
54 }
55
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
parent reply other threads:[~2025-07-18 16:27 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <20250717-riscv-swab-v5-1-1d5bb7c42f38@iencinas.com>]
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