From patchwork Sat May 18 11:34:24 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jarkko Sakkinen X-Patchwork-Id: 13667579 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 E6B4D39FC1; Sat, 18 May 2024 11:34:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716032073; cv=none; b=fwbWQCth9qRRwkoGMdmyZ6WZOLddky4xOaJNljfaspTlGhAkNuANZgc4kZzPZ5kUigBOt49qcTkW6cMR5qhh0eR/kBB8uK5SRtBnoH0r6PBpYULFaNYO6NgN0iPA4LeZRHnkJJ3QaCYpv9tsnWgwRF2p5vEqg0UjaHcOcuZlx4E= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716032073; c=relaxed/simple; bh=lh54TV2ei8xvwUkn4mkrDUhs2EQCaYP+o8zISbosFVo=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=pNruluUG8h/Njfq9LvG35s3sAR13vAXbZQ6cgpIdP/ezTIVaDnd/4txwzNOloheFjhqvUFPiFSfO13hBAMTeuBAUXMZxqzjo2s+a9yjqBWRTcypcAKdrBjY3IHuwY5IUhq6W52JH0upQWbxGw+YLVb7TWodeXCMdYFkURMrhMP0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=OiDzSSuc; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="OiDzSSuc" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E2BADC113CC; Sat, 18 May 2024 11:34:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1716032072; bh=lh54TV2ei8xvwUkn4mkrDUhs2EQCaYP+o8zISbosFVo=; h=From:To:Cc:Subject:Date:From; b=OiDzSSucr/DxyvTLqvETRdx5EVpumXoBBJiMPCxfLsYaEKZgPCrWhQPjzo+8jgfhC vC3Ql87au/4nFYBr3hiOtAvIAoE36UaLXvD9BVStKz+oD8W/GoelAnoYWm/Nagbp6q 7rh5LG71FshBVpSSKb6z8WwJSR8txuQQPArLvWea51iZOh2fvrYU8znCii+mAg6L4Y W2hacrzNGKepwiiqZIqTfeirpwX/b5DJL9xJ2oKXQFThGACWMGzN4Bh+cnTKYLM9Z/ N/qSDoOLx4gMaL3aRAFH1gtnG2RaYVzGJQmCaCtJbnv3Nxtkhs2v9BwRJ/Jjya2DjW bh2C6zZi+y0Jw== From: Jarkko Sakkinen To: linux-integrity@vger.kernel.org Cc: keyrings@vger.kernel.org, Jarkko Sakkinen , Vitor Soares , Peter Huewe , Jason Gunthorpe , James Bottomley , linux-kernel@vger.kernel.org (open list) Subject: [PATCH] tpm: Disable TCG_TPM2_HMAC by default Date: Sat, 18 May 2024 14:34:24 +0300 Message-ID: <20240518113424.13486-1-jarkko@kernel.org> X-Mailer: git-send-email 2.45.0 Precedence: bulk X-Mailing-List: linux-integrity@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Causes performance drop in initialization so needs to be opt-in. Distributors are capable of opt-in enabling this. Could be also handled by kernel-command line in the future. Reported-by: Vitor Soares Closes: https://lore.kernel.org/linux-integrity/bf67346ef623ff3c452c4f968b7d900911e250c3.camel@gmail.com/#t Fixes: d2add27cf2b8 ("tpm: Add NULL primary creation") Signed-off-by: Jarkko Sakkinen --- drivers/char/tpm/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig index e63a6a17793c..db41301e63f2 100644 --- a/drivers/char/tpm/Kconfig +++ b/drivers/char/tpm/Kconfig @@ -29,7 +29,7 @@ if TCG_TPM config TCG_TPM2_HMAC bool "Use HMAC and encrypted transactions on the TPM bus" - default y + default n select CRYPTO_ECDH select CRYPTO_LIB_AESCFB select CRYPTO_LIB_SHA256