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authorLinus Torvalds <torvalds@linux-foundation.org>2024-03-22 10:41:13 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2024-03-22 10:41:13 -0700
commitc150b809f7de2afdd3fb5a9adff2a9a68d7331ce (patch)
tree6b73865558c87f88fa34cd12b1e19fceedb39c8b /include/asm-generic/bitops/fls.h
parent1e3cd03c54b76b4cbc8b31256dc3f18c417a6876 (diff)
parenta9ad73295cc1e3af0253eee7d08943b2419444c4 (diff)
downloadlinux-c150b809f7de2afdd3fb5a9adff2a9a68d7331ce.tar.gz
Merge tag 'riscv-for-linus-6.9-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Palmer Dabbelt: - Support for various vector-accelerated crypto routines - Hibernation is now enabled for portable kernel builds - mmap_rnd_bits_max is larger on systems with larger VAs - Support for fast GUP - Support for membarrier-based instruction cache synchronization - Support for the Andes hart-level interrupt controller and PMU - Some cleanups around unaligned access speed probing and Kconfig settings - Support for ACPI LPI and CPPC - Various cleanus related to barriers - A handful of fixes * tag 'riscv-for-linus-6.9-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (66 commits) riscv: Fix syscall wrapper for >word-size arguments crypto: riscv - add vector crypto accelerated AES-CBC-CTS crypto: riscv - parallelize AES-CBC decryption riscv: Only flush the mm icache when setting an exec pte riscv: Use kcalloc() instead of kzalloc() riscv/barrier: Add missing space after ',' riscv/barrier: Consolidate fence definitions riscv/barrier: Define RISCV_FULL_BARRIER riscv/barrier: Define __{mb,rmb,wmb} RISC-V: defconfig: Enable CONFIG_ACPI_CPPC_CPUFREQ cpufreq: Move CPPC configs to common Kconfig and add RISC-V ACPI: RISC-V: Add CPPC driver ACPI: Enable ACPI_PROCESSOR for RISC-V ACPI: RISC-V: Add LPI driver cpuidle: RISC-V: Move few functions to arch/riscv riscv: Introduce set_compat_task() in asm/compat.h riscv: Introduce is_compat_thread() into compat.h riscv: add compile-time test into is_compat_task() riscv: Replace direct thread flag check with is_compat_task() riscv: Improve arch_get_mmap_end() macro ...
Diffstat (limited to 'include/asm-generic/bitops/fls.h')
-rw-r--r--include/asm-generic/bitops/fls.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/include/asm-generic/bitops/fls.h b/include/asm-generic/bitops/fls.h
index b168bb10e1be17..26f3ce1dd6e448 100644
--- a/include/asm-generic/bitops/fls.h
+++ b/include/asm-generic/bitops/fls.h
@@ -3,14 +3,14 @@
#define _ASM_GENERIC_BITOPS_FLS_H_
/**
- * fls - find last (most-significant) bit set
+ * generic_fls - find last (most-significant) bit set
* @x: the word to search
*
* This is defined the same way as ffs.
* Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
*/
-static __always_inline int fls(unsigned int x)
+static __always_inline int generic_fls(unsigned int x)
{
int r = 32;
@@ -39,4 +39,8 @@ static __always_inline int fls(unsigned int x)
return r;
}
+#ifndef __HAVE_ARCH_FLS
+#define fls(x) generic_fls(x)
+#endif
+
#endif /* _ASM_GENERIC_BITOPS_FLS_H_ */