[PATCH v3 6/8] riscv: lib: add strnlen implementation

[Feng Jiang]

On 2026/1/20 15:31, Andy Shevchenko wrote:
> On Tue, Jan 20, 2026 at 02:58:50PM +0800, Feng Jiang wrote:
>> Add an optimized strnlen() implementation for RISC-V. This version
>> includes a generic word-at-a-time optimization and a Zbb-powered
>> optimization using the 'orc.b' instruction, derived from the strlen
>> implementation.
>>
>> Benchmark results (QEMU TCG, rv64):
>>   Length | Original (MB/s) | Optimized (MB/s) | Improvement
>>   -------|-----------------|------------------|------------
>>   16 B   | 189             | 310              | +64.0%
>>   512 B  | 344             | 1535             | +346.2%
>>   4096 B | 363             | 1854             | +410.7%
> 
>> Suggested-by: Andy Shevchenko <andy at kernel.org>
> 
> Wrong tag, I have zero knowledge about RISC V.
> 

Sorry for the confusion. I misunderstood the scope of the 'Suggested-by' tag.
I will remove it from the RISC-V specific implementation patches and only keep
relevant credits in the benchmarking/testing patches where your feedback was
applied. 

Thanks for clarifying!

-- 
With Best Regards,
Feng Jiang