From patchwork Fri Aug 23 03:11:28 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kunwu Chan X-Patchwork-Id: 13774525 Received: from out-189.mta0.migadu.com (out-189.mta0.migadu.com [91.218.175.189]) (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 B3B4729CEA for ; Fri, 23 Aug 2024 03:12:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.189 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724382781; cv=none; b=n1Ks0X2oJCex8mSqrTTKNCNdXpvAFgmU2PDtMXnSyutOfrIwM9IqUHV3enIDQJxS6X9kB9I4BsseSMWraZ4peHM8sQ0Ict8pRF6g8AdsTV0d3S1P5F5yMrzay674AmIk6QM2ZUOCudpU32sC16K8oGUqiE945+Eaba2y2xYnwcY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724382781; c=relaxed/simple; bh=e8M4hGn3F6HeLuW+kugt6mk213gGZGxeB9qx6qGGYJY=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=M3Oth1UUMR3rh/O/Us1L98uKm+hlO2/9T+LVxGJRKjQQg8nXzzBnYvTRAUexZN9WuOLvZP6KvTpT+ypkW6CjYzKFRDJn8ZRRNO7WXWV7KlNSniTHLobqLDPWz8SXqhxibFgX9Eki0lGw+hxIvnsUUBK4943wBz19RyJd+hxSQCA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=MV6UcXue; arc=none smtp.client-ip=91.218.175.189 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="MV6UcXue" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1724382775; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=toen39aZXqfvfK7VRtTkKuy2dJycPw3LN43FvI2iTIE=; b=MV6UcXueObDmrw/ncEl82PBIJubanNZGiV4nPx2P93yD3hWnm7ijAT+NfjAqGDkPpPUQ0O BnBGfchKJwHNKAL/zxECDQLruoo7y6XdwUDwoZLthzhPgFT/c7iBBZGE33LWjcK8GpDrcS H++1nXvpJqc7m/uedA37OTtk5Pz+Eco= From: Kunwu Chan To: manivannan.sadhasivam@linaro.org Cc: gregkh@linuxfoundation.org, mhi@lists.linux.dev, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Kunwu Chan Subject: [PATCH] bus: mhi: host: make mhi_bus_type const Date: Fri, 23 Aug 2024 11:11:28 +0800 Message-ID: <20240823031129.49010-1-kunwu.chan@linux.dev> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Migadu-Flow: FLOW_OUT From: Kunwu Chan Now that the driver core can properly handle constant struct bus_type, move the mhi_bus_type variable to be a constant structure as well, placing it into read-only memory which can not be modified at runtime. Suggested-by: Greg Kroah-Hartman Signed-off-by: Kunwu Chan Reviewed-by: Manivannan Sadhasivam --- drivers/bus/mhi/host/init.c | 2 +- drivers/bus/mhi/host/internal.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/bus/mhi/host/init.c b/drivers/bus/mhi/host/init.c index ce7d2e62c2f1..a9b1f8beee7b 100644 --- a/drivers/bus/mhi/host/init.c +++ b/drivers/bus/mhi/host/init.c @@ -1464,7 +1464,7 @@ static int mhi_match(struct device *dev, const struct device_driver *drv) return 0; }; -struct bus_type mhi_bus_type = { +const struct bus_type mhi_bus_type = { .name = "mhi", .dev_name = "mhi", .match = mhi_match, diff --git a/drivers/bus/mhi/host/internal.h b/drivers/bus/mhi/host/internal.h index aaad40a07f69..d057e877932e 100644 --- a/drivers/bus/mhi/host/internal.h +++ b/drivers/bus/mhi/host/internal.h @@ -9,7 +9,7 @@ #include "../common.h" -extern struct bus_type mhi_bus_type; +extern const struct bus_type mhi_bus_type; /* Host request register */ #define MHI_SOC_RESET_REQ_OFFSET 0xb0