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/arm/mach-davinci/common.c | 100 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 100 insertions(+) create mode 100644 arch/arm/mach-davinci/common.c (limited to 'arch/arm/mach-davinci/common.c') diff --git a/arch/arm/mach-davinci/common.c b/arch/arm/mach-davinci/common.c new file mode 100644 index 000000000..7bc701868 --- /dev/null +++ b/arch/arm/mach-davinci/common.c @@ -0,0 +1,100 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Code commons to all DaVinci SoCs. + * + * Author: Mark A. Greer + * + * 2009 (c) MontaVista Software, Inc. + */ +#include +#include +#include +#include +#include +#include + +#include +#include + +#include "common.h" +#include "cputype.h" + +struct davinci_soc_info davinci_soc_info; +EXPORT_SYMBOL(davinci_soc_info); + +static int __init davinci_init_id(struct davinci_soc_info *soc_info) +{ + int i; + struct davinci_id *dip; + u8 variant; + u16 part_no; + void __iomem *base; + + base = ioremap(soc_info->jtag_id_reg, SZ_4K); + if (!base) { + pr_err("Unable to map JTAG ID register\n"); + return -ENOMEM; + } + + soc_info->jtag_id = __raw_readl(base); + iounmap(base); + + variant = (soc_info->jtag_id & 0xf0000000) >> 28; + part_no = (soc_info->jtag_id & 0x0ffff000) >> 12; + + for (i = 0, dip = soc_info->ids; i < soc_info->ids_num; + i++, dip++) + /* Don't care about the manufacturer right now */ + if ((dip->part_no == part_no) && (dip->variant == variant)) { + soc_info->cpu_id = dip->cpu_id; + pr_info("DaVinci %s variant 0x%x\n", dip->name, + dip->variant); + return 0; + } + + pr_err("Unknown DaVinci JTAG ID 0x%x\n", soc_info->jtag_id); + return -EINVAL; +} + +void __init davinci_common_init(const struct davinci_soc_info *soc_info) +{ + int ret; + + if (!soc_info) { + ret = -EINVAL; + goto err; + } + + memcpy(&davinci_soc_info, soc_info, sizeof(struct davinci_soc_info)); + + if (davinci_soc_info.io_desc && (davinci_soc_info.io_desc_num > 0)) + iotable_init(davinci_soc_info.io_desc, + davinci_soc_info.io_desc_num); + + /* + * Normally devicemaps_init() would flush caches and tlb after + * mdesc->map_io(), but we must also do it here because of the CPU + * revision check below. + */ + local_flush_tlb_all(); + flush_cache_all(); + + /* + * We want to check CPU revision early for cpu_is_xxxx() macros. + * IO space mapping must be initialized before we can do that. + */ + ret = davinci_init_id(&davinci_soc_info); + if (ret < 0) + goto err; + + + return; + +err: + panic("davinci_common_init: SoC Initialization failed\n"); +} + +void __init davinci_init_late(void) +{ + davinci_cpufreq_init(); +} -- cgit v1.3.1