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/lib/quad.S | 58 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 arch/powerpc/lib/quad.S (limited to 'arch/powerpc/lib/quad.S') diff --git a/arch/powerpc/lib/quad.S b/arch/powerpc/lib/quad.S new file mode 100644 index 000000000..da71760e5 --- /dev/null +++ b/arch/powerpc/lib/quad.S @@ -0,0 +1,58 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Quadword loads and stores + * for use in instruction emulation. + * + * Copyright 2017 Paul Mackerras, IBM Corp. + */ + +#include +#include +#include +#include +#include +#include + +/* do_lq(unsigned long ea, unsigned long *regs) */ +_GLOBAL(do_lq) +1: lq r6, 0(r3) + std r6, 0(r4) + std r7, 8(r4) + li r3, 0 + blr +2: li r3, -EFAULT + blr + EX_TABLE(1b, 2b) + +/* do_stq(unsigned long ea, unsigned long val0, unsigned long val1) */ +_GLOBAL(do_stq) +1: stq r4, 0(r3) + li r3, 0 + blr +2: li r3, -EFAULT + blr + EX_TABLE(1b, 2b) + +/* do_lqarx(unsigned long ea, unsigned long *regs) */ +_GLOBAL(do_lqarx) +1: PPC_LQARX(6, 0, 3, 0) + std r6, 0(r4) + std r7, 8(r4) + li r3, 0 + blr +2: li r3, -EFAULT + blr + EX_TABLE(1b, 2b) + +/* do_stqcx(unsigned long ea, unsigned long val0, unsigned long val1, + unsigned int *crp) */ + +_GLOBAL(do_stqcx) +1: PPC_STQCX(4, 0, 3) + mfcr r5 + stw r5, 0(r6) + li r3, 0 + blr +2: li r3, -EFAULT + blr + EX_TABLE(1b, 2b) -- cgit v1.3.1