From 3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d Mon Sep 17 00:00:00 2001 From: Kees Cook Date: Wed, 2 Sep 2026 15:31:14 -0700 Subject: treewide: refresh kmalloc_obj() conversions This is another run of the Coccinelle script for converting kmalloc() family of allocations to kmalloc_obj() via the existing rules in scripts/coccinelle/api/kmalloc_objs.cocci This catches both the set of kmalloc() uses added since the first kmalloc_obj() conversions in v7.0 and adds a large group missed in the first pass due to Coccinelle not interacting well with the cleanup.h scoped_...() family of macros[1]. I worked around this with spatch's "--macro-file" argument to a file with all the scoped_...() macros mapped to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control flow indicator I could find. Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc, riscv, and s390 with no new warnings. Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1] Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2] Signed-off-by: Kees Cook --- lib/842/842_debugfs.h | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 lib/842/842_debugfs.h (limited to 'lib/842/842_debugfs.h') diff --git a/lib/842/842_debugfs.h b/lib/842/842_debugfs.h new file mode 100644 index 000000000..4469407c3 --- /dev/null +++ b/lib/842/842_debugfs.h @@ -0,0 +1,50 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __842_DEBUGFS_H__ +#define __842_DEBUGFS_H__ + +#include + +static bool sw842_template_counts; +module_param_named(template_counts, sw842_template_counts, bool, 0444); + +static atomic_t template_count[OPS_MAX], template_repeat_count, + template_zeros_count, template_short_data_count, template_end_count; + +static struct dentry *sw842_debugfs_root; + +static int __init sw842_debugfs_create(void) +{ + umode_t m = S_IRUGO | S_IWUSR; + int i; + + if (!debugfs_initialized()) + return -ENODEV; + + sw842_debugfs_root = debugfs_create_dir(MODULE_NAME, NULL); + + for (i = 0; i < ARRAY_SIZE(template_count); i++) { + char name[32]; + + snprintf(name, 32, "template_%02x", i); + debugfs_create_atomic_t(name, m, sw842_debugfs_root, + &template_count[i]); + } + debugfs_create_atomic_t("template_repeat", m, sw842_debugfs_root, + &template_repeat_count); + debugfs_create_atomic_t("template_zeros", m, sw842_debugfs_root, + &template_zeros_count); + debugfs_create_atomic_t("template_short_data", m, sw842_debugfs_root, + &template_short_data_count); + debugfs_create_atomic_t("template_end", m, sw842_debugfs_root, + &template_end_count); + + return 0; +} + +static void __exit sw842_debugfs_remove(void) +{ + debugfs_remove_recursive(sw842_debugfs_root); +} + +#endif -- cgit v1.3.1