From patchwork Wed Jun 12 13:54:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marek_Beh=C3=BAn?= X-Patchwork-Id: 13695079 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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.lore.kernel.org (Postfix) with ESMTPS id 3864EC27C53 for ; Wed, 12 Jun 2024 13:54:56 +0000 (UTC) Received: by smtp.kernel.org (Postfix) id 264EEC4AF48; Wed, 12 Jun 2024 13:54:56 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0C647C116B1; Wed, 12 Jun 2024 13:54:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1718200496; bh=ZR/ZhtvNAnjkQJ27zWhiI+4NFBGnWk7aiuC44C9rRjQ=; h=From:List-Id:To:Cc:Subject:Date:In-Reply-To:References:From; b=q83sJv7pplM0ZJ4BQtadWFO76tM7noly3ajrIMkfTiA8XyDzNDqxIDy1wD9GtRnpw I16uDiHjNLeRi86iNghX0Z8TvNtONo8Hg+MKZnNDPcKoWs+nLx2NS2ECOFxvgPRtZ1 9zTRF7yFnR3sACgMaJYsBi4OBPKAUtE4Vq5eNJ4EUTl6ggpxO1g8TMIg1VRyvWZrLD 6DQWNQkXxtToLu0ncoES/Sf2pGY4mptOGqoL0FhJzE5oHDW7U5KoZVgQ0YcsiSGZQb Cg+rg/6zAqLpfWmDimT3FK0BpZwkqZbM9i+ZkU3MkCsQV2t1XNU6mN1Po/5UzcnMRR WROsnLBV0VoKA== From: =?utf-8?q?Marek_Beh=C3=BAn?= List-Id: To: Gregory CLEMENT , Andrew Lunn , Arnd Bergmann , soc@kernel.org, arm@kernel.org, Andy Shevchenko , Hans de Goede , =?utf-8?q?Ilpo_J=C3=A4rvinen?= Cc: =?utf-8?q?Marek_Beh=C3=BAn?= Subject: [PATCH 03/19] firmware: turris-mox-rwtm: Use PAGE_SIZE instead of hardcoded 4096 Date: Wed, 12 Jun 2024 15:54:27 +0200 Message-ID: <20240612135443.30239-4-kabel@kernel.org> X-Mailer: git-send-email 2.44.2 In-Reply-To: <20240612135443.30239-1-kabel@kernel.org> References: <20240612135443.30239-1-kabel@kernel.org> MIME-Version: 1.0 The 4096 bytes limit in mox_hwrng_read() is due to the DMA buffer being allocated to one PAGE_SIZE bytes. The PAGE_SIZE macro is used when allocating the buffer, use it in mox_hwrng_read() as well. Signed-off-by: Marek Behún --- drivers/firmware/turris-mox-rwtm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/firmware/turris-mox-rwtm.c b/drivers/firmware/turris-mox-rwtm.c index 3f4758e03c81..5acdde1bb6d9 100644 --- a/drivers/firmware/turris-mox-rwtm.c +++ b/drivers/firmware/turris-mox-rwtm.c @@ -287,8 +287,8 @@ static int mox_hwrng_read(struct hwrng *rng, void *data, size_t max, bool wait) struct armada_37xx_rwtm_tx_msg msg; int ret; - if (max > 4096) - max = 4096; + if (max > PAGE_SIZE) + max = PAGE_SIZE; msg.command = MBOX_CMD_GET_RANDOM; msg.args[0] = 1;