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| author | Jisheng Zhang <jszhang@kernel.org> | 2023-09-12 18:40:40 +0300 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2023-11-05 20:05:51 +0300 |
| commit | c20d36cc2a2073d4cdcda92bd7a1bb9b3b3b7c79 (patch) | |
| tree | 27fdb74d2935c6f6d6f1166be5af4d9ecc1924e6 /arch/riscv/mm/dma-noncoherent.c | |
| parent | 07863871dfb162965b21bb8c2e4861bdb0019da3 (diff) | |
| download | linux-c20d36cc2a2073d4cdcda92bd7a1bb9b3b3b7c79.tar.xz | |
riscv: don't probe unaligned access speed if already done
If misaligned_access_speed percpu var isn't so called "HWPROBE
MISALIGNED UNKNOWN", it means the probe has happened(this is possible
for example, hotplug off then hotplug on one cpu), and the percpu var
has been set, don't probe again in this case.
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Fixes: 584ea6564bca ("RISC-V: Probe for unaligned access speed")
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230912154040.3306-1-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/mm/dma-noncoherent.c')
0 files changed, 0 insertions, 0 deletions