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 --- rust/helpers/uaccess.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 rust/helpers/uaccess.c (limited to 'rust/helpers/uaccess.c') diff --git a/rust/helpers/uaccess.c b/rust/helpers/uaccess.c new file mode 100644 index 000000000..6e59cc9c6 --- /dev/null +++ b/rust/helpers/uaccess.c @@ -0,0 +1,29 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include + +__rust_helper unsigned long +rust_helper_copy_from_user(void *to, const void __user *from, unsigned long n) +{ + return copy_from_user(to, from, n); +} + +__rust_helper unsigned long +rust_helper_copy_to_user(void __user *to, const void *from, unsigned long n) +{ + return copy_to_user(to, from, n); +} + +#ifdef INLINE_COPY_USER +__rust_helper +unsigned long rust_helper__copy_from_user(void *to, const void __user *from, unsigned long n) +{ + return _inline_copy_from_user(to, from, n); +} + +__rust_helper +unsigned long rust_helper__copy_to_user(void __user *to, const void *from, unsigned long n) +{ + return _inline_copy_to_user(to, from, n); +} +#endif -- cgit v1.3.1