From d22c3e0088e85be8131f7a9283f759cdbb20726d Mon Sep 17 00:00:00 2001 From: Sven Schnelle Date: Wed, 9 Sep 2026 11:29:53 +0200 Subject: selftests/ftrace: Fix unique symbol check in kprobe_non_uniq_symbol.tc The current regex also matches symbols in modules, which makes the test fail on s390 where name_show is present only once in the kernel, but also multiple times in modules: 000001b1401cdc20 t name_show 000001b0c05e6c40 t name_show [mdev] 000001b0c0495f30 t name_show [i2c_core] Fix this by changing the regular expression to only match the function name. Link: https://lore.kernel.org/all/20260909092954.2200558-1-svens@linux.ibm.com/ Fixes: 03b80ff8023a ("selftests/ftrace: Add new test case which checks non unique symbol") Signed-off-by: Sven Schnelle Reviewed-by: Steven Rostedt Signed-off-by: Masami Hiramatsu (Google) --- drivers/edac/debugfs.c | 91 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 91 insertions(+) create mode 100644 drivers/edac/debugfs.c (limited to 'drivers/edac/debugfs.c') diff --git a/drivers/edac/debugfs.c b/drivers/edac/debugfs.c new file mode 100644 index 000000000..447d0c620 --- /dev/null +++ b/drivers/edac/debugfs.c @@ -0,0 +1,91 @@ +// SPDX-License-Identifier: GPL-2.0-only + +#include "edac_module.h" + +static struct dentry *edac_debugfs; + +void __init edac_debugfs_init(void) +{ + edac_debugfs = debugfs_create_dir("edac", NULL); +} + +void edac_debugfs_exit(void) +{ + debugfs_remove_recursive(edac_debugfs); +} + +void edac_create_debugfs_nodes(struct mem_ctl_info *mci) +{ + mci->debugfs = debugfs_create_dir(mci->dev.kobj.name, edac_debugfs); +} + +/* Create a toplevel dir under EDAC's debugfs hierarchy */ +struct dentry *edac_debugfs_create_dir(const char *dirname) +{ + if (!edac_debugfs) + return NULL; + + return debugfs_create_dir(dirname, edac_debugfs); +} +EXPORT_SYMBOL_GPL(edac_debugfs_create_dir); + +/* Create a toplevel dir under EDAC's debugfs hierarchy with parent @parent */ +struct dentry * +edac_debugfs_create_dir_at(const char *dirname, struct dentry *parent) +{ + return debugfs_create_dir(dirname, parent); +} +EXPORT_SYMBOL_GPL(edac_debugfs_create_dir_at); + +/* + * Create a file under EDAC's hierarchy or a sub-hierarchy: + * + * @name: file name + * @mode: file permissions + * @parent: parent dentry. If NULL, it becomes the toplevel EDAC dir + * @data: private data of caller + * @fops: file operations of this file + */ +struct dentry * +edac_debugfs_create_file(const char *name, umode_t mode, struct dentry *parent, + void *data, const struct file_operations *fops) +{ + if (!parent) + parent = edac_debugfs; + + return debugfs_create_file(name, mode, parent, data, fops); +} +EXPORT_SYMBOL_GPL(edac_debugfs_create_file); + +/* Wrapper for debugfs_create_x8() */ +void edac_debugfs_create_x8(const char *name, umode_t mode, + struct dentry *parent, u8 *value) +{ + if (!parent) + parent = edac_debugfs; + + debugfs_create_x8(name, mode, parent, value); +} +EXPORT_SYMBOL_GPL(edac_debugfs_create_x8); + +/* Wrapper for debugfs_create_x16() */ +void edac_debugfs_create_x16(const char *name, umode_t mode, + struct dentry *parent, u16 *value) +{ + if (!parent) + parent = edac_debugfs; + + debugfs_create_x16(name, mode, parent, value); +} +EXPORT_SYMBOL_GPL(edac_debugfs_create_x16); + +/* Wrapper for debugfs_create_x32() */ +void edac_debugfs_create_x32(const char *name, umode_t mode, + struct dentry *parent, u32 *value) +{ + if (!parent) + parent = edac_debugfs; + + debugfs_create_x32(name, mode, parent, value); +} +EXPORT_SYMBOL_GPL(edac_debugfs_create_x32); -- cgit v1.3.1