okay, do it the hard way

chromium-86.0.4240.75-epel7-no-kcmp-h.patch

@@ -1,15 +1,28 @@
 diff -up chromium-86.0.4240.75/sandbox/policy/linux/bpf_cros_amd_gpu_policy_linux.cc.epel7-kcmp chromium-86.0.4240.75/sandbox/policy/linux/bpf_cros_amd_gpu_policy_linux.cc
 --- chromium-86.0.4240.75/sandbox/policy/linux/bpf_cros_amd_gpu_policy_linux.cc.epel7-kcmp	2020-10-19 19:05:20.249786458 -0400
-+++ chromium-86.0.4240.75/sandbox/policy/linux/bpf_cros_amd_gpu_policy_linux.cc	2020-10-19 19:07:09.814720097 -0400
++++ chromium-86.0.4240.75/sandbox/policy/linux/bpf_cros_amd_gpu_policy_linux.cc	2020-10-20 10:50:21.560402023 -0400
-@@ -5,8 +5,10 @@
+@@ -6,7 +6,24 @@
- #include "sandbox/policy/linux/bpf_cros_amd_gpu_policy_linux.h"
  
  #include <errno.h>
--#include <fcntl.h>
+ #include <fcntl.h>
 -#include <linux/kcmp.h>
-+#include <linux/fcntl.h>
 +#ifndef KCMP_FILE
 +#define KCMP_FILE 0
++#endif
++#ifndef F_LINUX_SPECIFIC_BASE
++#define F_LINUX_SPECIFIC_BASE 1024
++#endif
++#ifndef F_SEAL_SEAL
++#define F_SEAL_SEAL 0x0001
++#endif
++#ifndef F_SEAL_SHRINK
++#define F_SEAL_SHRINK 0x0002
++#endif
++#ifndef F_SEAL_GROW
++#define F_SEAL_GROW 0x0004
++#endif
++#ifndef F_ADD_SEALS
++#define F_ADD_SEALS (F_LINUX_SPECIFIC_BASE + 9)
 +#endif
  #include <sys/socket.h>