From f99bc332c713b7672bad5236060b02f0c41c7242 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 17 Jun 2019 14:41:33 +0200 Subject: [PATCH] habanalabs: use u64_to_user_ptr() for reading user pointers We cannot cast a 64-bit integer to a pointer on 32-bit architectures without a warning: drivers/misc/habanalabs/habanalabs_ioctl.c: In function 'debug_coresight': drivers/misc/habanalabs/habanalabs_ioctl.c:143:23: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast] input = memdup_user((const void __user *) args->input_ptr, Use the macro that was defined for this purpose. Fixes: 315bc055ed56 ("habanalabs: add new IOCTL for debug, tracing and profiling") Signed-off-by: Arnd Bergmann Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay --- drivers/misc/habanalabs/habanalabs_ioctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/misc/habanalabs/habanalabs_ioctl.c b/drivers/misc/habanalabs/habanalabs_ioctl.c index eeefb22023e9..b7a0eecf6b6c 100644 --- a/drivers/misc/habanalabs/habanalabs_ioctl.c +++ b/drivers/misc/habanalabs/habanalabs_ioctl.c @@ -140,7 +140,7 @@ static int debug_coresight(struct hl_device *hdev, struct hl_debug_args *args) params->op = args->op; if (args->input_ptr && args->input_size) { - input = memdup_user((const void __user *) args->input_ptr, + input = memdup_user(u64_to_user_ptr(args->input_ptr), args->input_size); if (IS_ERR(input)) { rc = PTR_ERR(input);