linux-kernel - Re: [PATCH v2 06/18] loongarch/crc32: expose CRC32 functions through lib

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Message-ID: <DA8BCDFFEACDA1C6+20241103133655.217375-1-wangyuli@uniontech.com>
Date: Sun,  3 Nov 2024 21:36:55 +0800
From: WangYuli <wangyuli@...ontech.com>
To: ebiggers@...nel.org
Cc: ardb@...nel.org,
	linux-arch@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
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Subject: Re: [PATCH v2 06/18] loongarch/crc32: expose CRC32 functions through lib

Even though the narrower CRC instructions doesn't require GRLEN=64, they still *aren't* part of LA32 (LoongArch reference manual v1.10, Volume 1, Table 2-1).
Link: https://lore.kernel.org/all/0a7d0a9e-c56e-4ee2-a83b-00164a450abe@xen0n.name/

Therefore, we could not directly add ARCH_HAS_CRC32 to config LOONGARCH.

Thanks,
--
WangYuli