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(parent: 6b85e9a) | patch
riscv: cmpxchg: Use riscv_has_extension_likely
authorVivian Wang <wangruikang@iscas.ac.cn>
Tue, 18 Nov 2025 04:19:23 +0000 (21:19 -0700)
committerPaul Walmsley <pjw@kernel.org>
Wed, 19 Nov 2025 16:19:28 +0000 (09:19 -0700)
commit724c69447975e1e0854082c324b6871c8e2214f8
tree74a397b47966c555c507a0c3272a091bf88b3c91tree | snapshot
parent6b85e9ac4a25c5e69f8121e95eea14da6e3df2facommit | diff
riscv: cmpxchg: Use riscv_has_extension_likely

Use riscv_has_extension_likely() to check for RISCV_ISA_EXT_ZAWRS,
replacing the use of asm goto with ALTERNATIVE.

The "likely" variant is used to match the behavior of the original
implementation using ALTERNATIVE("j %l[no_zawrs]", "nop", ...).

Signed-off-by: Vivian Wang <wangruikang@iscas.ac.cn>
Link: https://patch.msgid.link/20251020-riscv-altn-helper-wip-v4-5-ef941c87669a@iscas.ac.cn
Signed-off-by: Paul Walmsley <pjw@kernel.org>
arch/riscv/include/asm/cmpxchg.h diff | blob | blame | history
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