linux-kernel - [PATCH] remoteproc: qcom: use %pap format string for phys_addr

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Date:   Mon,  6 Nov 2017 14:37:17 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Ohad Ben-Cohen <ohad@...ery.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Avaneesh Kumar Dwivedi <akdwived@...eaurora.org>,
        Andy Gross <andy.gross@...aro.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        linux-remoteproc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] remoteproc: qcom: use %pap format string for phys_addr_t

We cannot cast a phys_addr_t variable to a pointer on 32-bit architectures
with CONFIG_PHYS_ADDR_T_64BIT set:

In file included from include/linux/kernel.h:14:0,
                 from include/linux/clk.h:16,
                 from drivers/remoteproc/qcom_q6v5_pil.c:18:
drivers/remoteproc/qcom_q6v5_pil.c: In function 'q6v5_xfer_mem_ownership':
drivers/remoteproc/qcom_q6v5_pil.c:337:10: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]
          (void *)addr, (void *)(addr + size),
          ^

The correct way to print the contents is to use the %pap format
string, passing the phys address by reference.

Fixes: 6c5a9dc2481b ("remoteproc: qcom: Make secure world call for mem ownership switch")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/remoteproc/qcom_q6v5_pil.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/remoteproc/qcom_q6v5_pil.c b/drivers/remoteproc/qcom_q6v5_pil.c
index 5460f61ee21c..4576f88499cb 100644
--- a/drivers/remoteproc/qcom_q6v5_pil.c
+++ b/drivers/remoteproc/qcom_q6v5_pil.c
@@ -333,9 +333,9 @@ static int q6v5_xfer_mem_ownership(struct q6v5 *qproc, int *current_perm,
 	ret = qcom_scm_assign_mem(addr, ALIGN(size, SZ_4K),
 				  current_perm, &next, 1);
 	if (ret < 0) {
-		pr_err("Failed to assign memory access in range %p to %p to %s ret = %d\n",
-		       (void *)addr, (void *)(addr + size),
-		       remote_owner ? "mss" : "hlos", ret);
+		phys_addr_t end = addr + size;
+		pr_err("Failed to assign memory access in range %pap to %pap to %s ret = %d\n",
+		       &addr, &end, remote_owner ? "mss" : "hlos", ret);
 		return ret;
 	}
 
-- 
2.9.0