redonkable
/
remarkable-linux
1
0
Fork 0
Code Releases Activity

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: 315bc055ed ("habanalabs: add new IOCTL for debug, tracing and profiling")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
zero-colors
Arnd Bergmann 2019-06-17 14:41:33 +02:00 committed by Oded Gabbay
parent 6ad805b82d
commit f99bc332c7
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/misc/habanalabs/habanalabs_ioctl.c
View File

@ -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);