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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /lib/of-reconfig-notifier-error-inject.c | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | lib/of-reconfig-notifier-error-inject.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/lib/of-reconfig-notifier-error-inject.c b/lib/of-reconfig-notifier-error-inject.c new file mode 100644 index 0000000000..b26f16402a --- /dev/null +++ b/lib/of-reconfig-notifier-error-inject.c @@ -0,0 +1,52 @@ +// SPDX-License-Identifier: GPL-2.0-only +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of.h> + +#include "notifier-error-inject.h" + +static int priority; +module_param(priority, int, 0); +MODULE_PARM_DESC(priority, "specify OF reconfig notifier priority"); + +static struct notifier_err_inject reconfig_err_inject = { + .actions = { + { NOTIFIER_ERR_INJECT_ACTION(OF_RECONFIG_ATTACH_NODE) }, + { NOTIFIER_ERR_INJECT_ACTION(OF_RECONFIG_DETACH_NODE) }, + { NOTIFIER_ERR_INJECT_ACTION(OF_RECONFIG_ADD_PROPERTY) }, + { NOTIFIER_ERR_INJECT_ACTION(OF_RECONFIG_REMOVE_PROPERTY) }, + { NOTIFIER_ERR_INJECT_ACTION(OF_RECONFIG_UPDATE_PROPERTY) }, + {} + } +}; + +static struct dentry *dir; + +static int err_inject_init(void) +{ + int err; + + dir = notifier_err_inject_init("OF-reconfig", + notifier_err_inject_dir, &reconfig_err_inject, priority); + if (IS_ERR(dir)) + return PTR_ERR(dir); + + err = of_reconfig_notifier_register(&reconfig_err_inject.nb); + if (err) + debugfs_remove_recursive(dir); + + return err; +} + +static void err_inject_exit(void) +{ + of_reconfig_notifier_unregister(&reconfig_err_inject.nb); + debugfs_remove_recursive(dir); +} + +module_init(err_inject_init); +module_exit(err_inject_exit); + +MODULE_DESCRIPTION("OF reconfig notifier error injection module"); +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Akinobu Mita <akinobu.mita@gmail.com>"); |