From: Peng Fan <peng....@nxp.com>
krealloc_array is used in drivers/vhost/vringh.c, add it to avoid build
failure.
Drop WARN_ON_ONCE, because duplicated with the one in bug.h
Signed-off-by: Peng Fan <peng....@nxp.com>
---
tools/virtio/linux/kernel.h | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/tools/virtio/linux/kernel.h b/tools/virtio/linux/kernel.h
index 315e85cabeda..0b493542e61a 100644
--- a/tools/virtio/linux/kernel.h
+++ b/tools/virtio/linux/kernel.h
@@ -11,6 +11,7 @@
#include <linux/compiler.h>
#include <linux/types.h>
+#include <linux/overflow.h>
#include <linux/list.h>
#include <linux/printk.h>
#include <linux/bug.h>
@@ -117,6 +118,16 @@ static inline void free_page(unsigned long addr)
# define unlikely(x) (__builtin_expect(!!(x), 0))
# endif
+static inline void *krealloc_array(void *p, size_t new_n, size_t new_size,
gfp_t gfp)
+{
+ size_t bytes;
+
+ if (unlikely(check_mul_overflow(new_n, new_size, &bytes)))
+ return NULL;
+
+ return krealloc(p, bytes, gfp);
+}
+
#define pr_err(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
#ifdef DEBUG
#define pr_debug(format, ...) fprintf (stderr, format, ## __VA_ARGS__)
@@ -126,8 +137,6 @@ static inline void free_page(unsigned long addr)
#define dev_err(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__)
#define dev_warn(dev, format, ...) fprintf (stderr, format, ## __VA_ARGS__)
-#define WARN_ON_ONCE(cond) (unlikely(cond) ? fprintf (stderr, "WARNING\n") : 0)
-
#define min(x, y) ({ \
typeof(x) _min1 = (x); \
typeof(y) _min2 = (y); \
--
2.28.0
