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 --- arch/powerpc/sysdev/dcr.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 arch/powerpc/sysdev/dcr.c (limited to 'arch/powerpc/sysdev/dcr.c') diff --git a/arch/powerpc/sysdev/dcr.c b/arch/powerpc/sysdev/dcr.c new file mode 100644 index 000000000..cb44a6995 --- /dev/null +++ b/arch/powerpc/sysdev/dcr.c @@ -0,0 +1,40 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * (c) Copyright 2006 Benjamin Herrenschmidt, IBM Corp. + * + */ + +#undef DEBUG + +#include +#include +#include +#include + +unsigned int dcr_resource_start(const struct device_node *np, + unsigned int index) +{ + unsigned int ds; + const u32 *dr = of_get_property(np, "dcr-reg", &ds); + + if (dr == NULL || ds & 1 || index >= (ds / 8)) + return 0; + + return dr[index * 2]; +} +EXPORT_SYMBOL_GPL(dcr_resource_start); + +unsigned int dcr_resource_len(const struct device_node *np, unsigned int index) +{ + unsigned int ds; + const u32 *dr = of_get_property(np, "dcr-reg", &ds); + + if (dr == NULL || ds & 1 || index >= (ds / 8)) + return 0; + + return dr[index * 2 + 1]; +} +EXPORT_SYMBOL_GPL(dcr_resource_len); + +DEFINE_SPINLOCK(dcr_ind_lock); +EXPORT_SYMBOL_GPL(dcr_ind_lock); -- cgit v1.3.1