diff options
Diffstat (limited to 'src/xdp/include/linux/err.h')
-rw-r--r-- | src/xdp/include/linux/err.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/xdp/include/linux/err.h b/src/xdp/include/linux/err.h new file mode 100644 index 000000000..a3db4cf5e --- /dev/null +++ b/src/xdp/include/linux/err.h @@ -0,0 +1,33 @@ +/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */ + +#ifndef __LINUX_ERR_H +#define __LINUX_ERR_H + +#include <linux/types.h> +#include <asm/errno.h> + +#define MAX_ERRNO 4095 + +#define IS_ERR_VALUE(x) ((x) >= (unsigned long)-MAX_ERRNO) + +static inline void * ERR_PTR(long error_) +{ + return (void *) error_; +} + +static inline long PTR_ERR(const void *ptr) +{ + return (long) ptr; +} + +static inline bool IS_ERR(const void *ptr) +{ + return IS_ERR_VALUE((unsigned long)ptr); +} + +static inline bool IS_ERR_OR_NULL(const void *ptr) +{ + return (!ptr) || IS_ERR_VALUE((unsigned long)ptr); +} + +#endif |