A driver can be loaded as a dynamic module or a built-in module.
In commit 681a67288655 ("usertools: check if module is loaded
before binding"), script only checks modules in /sys/module/.
However, for built-in kernel driver, it only shows up in /sys/module/,
if it has a version or at least one parameter. So add check for
modules in /lib/modules/$(uname -r)/modules.builtin.
Signed-off-by: Yongxin Liu <yongxin....@windriver.com>
---
v5:
- Make code robust and more memory efficient.
v4:
- Replace shell call with platform.uname(). Check file existence
before reading.
v3:
- Add built-in module list in loaded_modules for checking
instead of removing error check.
v2:
- fix git commit description style in commit log
- fix typo spelling
---
usertools/dpdk-devbind.py | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
diff --git a/usertools/dpdk-devbind.py b/usertools/dpdk-devbind.py
index 054ad2e1c..4bc0b6207 100755
--- a/usertools/dpdk-devbind.py
+++ b/usertools/dpdk-devbind.py
@@ -7,6 +7,7 @@
import os
import subprocess
import argparse
+import platform
from glob import glob
from os.path import exists, basename
@@ -107,7 +108,17 @@ def module_is_loaded(module):
loaded_modules = sysfs_mods
- return module in sysfs_mods
+ # add built-in modules as loaded
+ release = platform.uname().release
+ filename = os.path.join("/lib/modules/", release, "modules.builtin")
+ if os.path.exists(filename):
+ try:
+ with open(filename) as f:
+ loaded_modules += [os.path.splitext(os.path.basename(mod))[0]
for mod in f]
+ except IOError:
+ print("Warning: cannot read list of built-in kernel modules")
+
+ return module in loaded_modules
def check_modules():
--
2.14.4
