From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from abb.hmeau.com (abb.hmeau.com [180.181.231.80]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B5AE8355F5A; Sat, 7 Mar 2026 05:24:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=180.181.231.80 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772861051; cv=none; b=umuH8SYG4W67GwMJNASMmCDE1xvf1BkJdgOcf+oy2PG/2GiEPnZ1EhFjMO2D7f5nquXhGv6ns1Rp1Jv4cA6lYjIa7VN1RzTxCoaKbMWrFRwjl7PdPRoWfgY1LqhSvlQRcTHEbeyhsNS8Tj7gVXvxXk1W7MrH32IpjAKBaMmoOLA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772861051; c=relaxed/simple; bh=RVVnKtbXOFSwyK7wKbW42rOuYypJ/78S0lBwCh6kSB8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Vt2U9bsnNV6yF1U5I7vb+JM25yTxVXLYiPlEvnru2th/fz/2fRiUPj7enIFnNOAAB2RWYIl4+B81ef3P12tmtbJKxbL4PAZN6eBDuXSGrCN/iOvbLrwYR9FIy8O7r6ziALyj/Ghord+Di5LOHwDTwzJ3yuxO3eyPTEh290ibpko= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=gondor.apana.org.au; spf=pass smtp.mailfrom=gondor.apana.org.au; dkim=pass (2048-bit key) header.d=gondor.apana.org.au header.i=@gondor.apana.org.au header.b=gEOtoIvz; arc=none smtp.client-ip=180.181.231.80 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=gondor.apana.org.au Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gondor.apana.org.au Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gondor.apana.org.au header.i=@gondor.apana.org.au header.b="gEOtoIvz" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gondor.apana.org.au; s=h01; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:cc:to:subject:message-id:date: from:content-type:reply-to; bh=TZtYTKdHqFobo9IEwiD6UTjJ7mG6N0xczjmjrh5PM/o=; b=gEOtoIvzl0PHIx4ehnYpeSytPCruDIvSir2FYbwvAE5U2oBqXHffoKGtV8JhM3iDB2eW9F3InmI uRWOT7bKVM0AmkaTJh0C5th5Hoadx82m6cAcroIb/5TGw18QGsN2uDD9ooAN97XV9/IL02a4gtRFd GWbNPYTMDf85DyAgPT+eHqKeHb9nB4dDj2ZpcX5nH/1r1DV3OCDobiGOcLVTA/i/e84BrxkiLwsIT okJbYDyVvS+urDlI330QoTw3J53vtA0zNfF3THZHJGLKKuX5aWl7fxiurMzR7h0n80WKOvLT/p0sK cB8rBhyLI+r2w8MS/v8M6LTZKdCXfbxcdOHw==; Received: from loth.rohan.me.apana.org.au ([192.168.167.2]) by formenos.hmeau.com with smtp (Exim 4.96 #2 (Debian)) id 1vyk8s-00CJRR-09; Sat, 07 Mar 2026 13:23:59 +0800 Received: by loth.rohan.me.apana.org.au (sSMTP sendmail emulation); Sat, 07 Mar 2026 14:23:58 +0900 Date: Sat, 7 Mar 2026 14:23:58 +0900 From: Herbert Xu To: T Pratham Cc: "David S. Miller" , Manorit Chawdhry , Kamlesh Gurudasani , Shiva Tripathi , Kavitha Malarvizhi , Vishal Mahaveer , Praneeth Bajjuri , linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v10 2/3] crypto: ti - Add support for AES-GCM in DTHEv2 driver Message-ID: References: <20260226125441.3559664-1-t-pratham@ti.com> <20260226125441.3559664-3-t-pratham@ti.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260226125441.3559664-3-t-pratham@ti.com> On Thu, Feb 26, 2026 at 06:24:40PM +0530, T Pratham wrote: > > + src = dthe_aead_prep_src(req->src, req->assoclen, cryptlen, > + src_assoc_padbuf, src_crypt_padbuf); > + if (IS_ERR(src)) { > + ret = PTR_ERR(src); > + goto aead_prep_src_err; > + } > + > + if (req->assoclen % AES_BLOCK_SIZE) > + assoclen += AES_BLOCK_SIZE - (req->assoclen % AES_BLOCK_SIZE); > + if (cryptlen % AES_BLOCK_SIZE) > + cryptlen += AES_BLOCK_SIZE - (cryptlen % AES_BLOCK_SIZE); > + > + src_nents = sg_nents_for_len(src, assoclen + cryptlen); > + > + if (cryptlen != 0) { > + dst = dthe_aead_prep_dst(req->dst, req->assoclen, unpadded_cryptlen, > + dst_crypt_padbuf); > + if (IS_ERR(dst)) { > + ret = PTR_ERR(dst); > + goto aead_prep_dst_err; > + } > + > + dst_nents = sg_nents_for_len(dst, cryptlen); > + } > + /* Prep finished */ How does this handle the case where req->src == req->dst? Thanks, -- Email: Herbert Xu Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt