Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
To:     gregkh@linuxfoundation.org
Cc:     hemantk@codeaurora.org, bbhatt@codeaurora.org,
        linux-arm-msm@vger.kernel.org, jhugo@codeaurora.org,
        linux-kernel@vger.kernel.org, loic.poulain@linaro.org,
        kvalo@codeaurora.org, ath11k@lists.infradead.org,
        Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Subject: [PATCH 08/10] ath11k: set register access length for MHI driver
Date:   Fri, 25 Jun 2021 18:03:53 +0530
Message-Id: <20210625123355.11578-9-manivannan.sadhasivam@linaro.org>
In-Reply-To: <20210625123355.11578-1-manivannan.sadhasivam@linaro.org>
References: <20210625123355.11578-1-manivannan.sadhasivam@linaro.org>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

From: Bhaumik Bhatt <bbhatt@codeaurora.org>

MHI driver requires register space length to add range checks and
prevent memory region accesses outside of that for MMIO space.
Set it before registering the MHI controller.

Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Reviewed-by: Hemant Kumar <hemantk@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1620330705-40192-5-git-send-email-bbhatt@codeaurora.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
---
 drivers/net/wireless/ath/ath11k/mhi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/ath/ath11k/mhi.c b/drivers/net/wireless/ath/ath11k/mhi.c
index 27b394d115e2..e097ae52e257 100644
--- a/drivers/net/wireless/ath/ath11k/mhi.c
+++ b/drivers/net/wireless/ath/ath11k/mhi.c
@@ -330,6 +330,7 @@ int ath11k_mhi_register(struct ath11k_pci *ab_pci)
 	mhi_ctrl->cntrl_dev = ab->dev;
 	mhi_ctrl->fw_image = ab_pci->amss_path;
 	mhi_ctrl->regs = ab->mem;
+	mhi_ctrl->reg_len = ab->mem_len;
 
 	ret = ath11k_mhi_get_msi(ab_pci);
 	if (ret) {
-- 
2.25.1