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Date: Fri, 8 Jan 2016 18:54:54 +0900 From: Herbert Xu <herbert@...dor.apana.org.au> To: Tom Lendacky <thomas.lendacky@....com> Cc: Tim Chen <tim.c.chen@...ux.intel.com>, Russell King - ARM Linux <linux@....linux.org.uk>, linux-kernel <linux-kernel@...r.kernel.org>, linux-crypto <linux-crypto@...r.kernel.org>, "megha.dey" <megha.dey@...el.com> Subject: Re: ahash alg that does not implement import/export failed to register On Thu, Jan 07, 2016 at 08:49:31AM -0600, Tom Lendacky wrote: > > Is it expected that import and export should work across algorithm > implementations (eg. export sha1 state from hardware driver and import > into sha1-generic algorithm)? Or is the state purely meant for use by > the driver only? I see a few hardware drivers exporting/importing > to/from sha1_state and sha256_state and that is what prompts this > question. For algorithms in general there is no requirement for the states to be exported in a particular format. For certain special cases such as crc32c we do require a specific format but you don't have to worry about this for SHA. Cheers, -- Email: Herbert Xu <herbert@...dor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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