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| author | Arnd Bergmann <arnd@arndb.de> | 2019-06-17 14:41:33 +0200 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2019-06-20 12:13:19 +0300 |
| commit | f99bc332c713b7672bad5236060b02f0c41c7242 (patch) | |
| tree | 0febffe47a36cfacfa965f8d26acffb0caf6d2b5 | |
| parent | 6ad805b82dc5fc0ffd2de1d1f0de47214a050278 (diff) | |
| download | linux-f99bc332c713b7672bad5236060b02f0c41c7242.tar.bz2 | |
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 <arnd@arndb.de>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
| -rw-r--r-- | drivers/misc/habanalabs/habanalabs_ioctl.c | 2 |
1 files changed, 1 insertions, 1 deletions
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); |