linux-kernel - Re: [PATCH v9 2/5] crypto: loongson - add Loongson RNG driver support

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Message-ID: <aCrxQqo1UYdNdt8l@gondor.apana.org.au>
Date: Mon, 19 May 2025 16:52:18 +0800
From: Herbert Xu <herbert@...dor.apana.org.au>
To: Qunqin Zhao <zhaoqunqin@...ngson.cn>
Cc: lee@...nel.org, davem@...emloft.net, peterhuewe@....de,
	jarkko@...nel.org, linux-kernel@...r.kernel.org,
	loongarch@...ts.linux.dev, linux-crypto@...r.kernel.org,
	jgg@...pe.ca, linux-integrity@...r.kernel.org,
	pmenzel@...gen.mpg.de, Yinggang Gu <guyinggang@...ngson.cn>,
	Huacai Chen <chenhuacai@...ngson.cn>
Subject: Re: [PATCH v9 2/5] crypto: loongson - add Loongson RNG driver support

On Mon, May 19, 2025 at 04:49:45PM +0800, Qunqin Zhao wrote:
>
> Is it fine waiting in init-callback until someone calls exit-callback?

No that's just as bad as failing.  Remember this is exposed to
user-space through af_alg.  If you make it wait it'll just appear
to hang for the user invoking this.

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