net/mlx4: Use is_kdump_kernel() to detect kdump kernel

Use is_kdump_kernel() to detect kdump kernel, instead of reset_devices.
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/linux/mlx4/device.h

@@ -38,6 +38,7 @@
 #include <linux/completion.h>
 #include <linux/radix-tree.h>
 #include <linux/cpu_rmap.h>
+#include <linux/crash_dump.h>
 
 #include <linux/atomic.h>
 
@@ -1275,7 +1276,7 @@ int mlx4_mr_rereg_mem_write(struct mlx4_dev *dev, struct mlx4_mr *mr,
 /* Returns true if running in low memory profile (kdump kernel) */
 static inline bool mlx4_low_memory_profile(void)
 {
-	return reset_devices;
+	return is_kdump_kernel();
 }
 
 #endif /* MLX4_DEVICE_H */