Using <limits.h> to gain access to INT_MAX introduces a dependency on a
libc, which UAPI headers should not do.

Use the equivalent UAPI constant.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
---
 include/uapi/linux/ethtool.h | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index eb7ff2602fbb..9500236a9d2e 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -15,13 +15,10 @@
 #define _UAPI_LINUX_ETHTOOL_H
 
 #include <linux/const.h>
+#include <linux/limits.h>
 #include <linux/types.h>
 #include <linux/if_ether.h>
 
-#ifndef __KERNEL__
-#include <limits.h> /* for INT_MAX */
-#endif
-
 /* All structures exposed to userland should be defined such that they
  * have the same layout for 32-bit and 64-bit userland.
  */
@@ -2200,7 +2197,7 @@ enum ethtool_link_mode_bit_indices {
 
 static inline int ethtool_validate_speed(__u32 speed)
 {
-	return speed <= INT_MAX || speed == (__u32)SPEED_UNKNOWN;
+	return speed <= __KERNEL_INT_MAX || speed == (__u32)SPEED_UNKNOWN;
 }
 
 /* Duplex, half or full. */

-- 
2.52.0