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authorKees Cook <kees+treewide@kernel.org>2026-09-02 15:31:14 -0700
committerKees Cook <kees@kernel.org>2026-09-04 21:37:00 -0700
commit3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d (patch)
treec65086f9bdcd48c6360fb7cb4598bca084da1f32 /arch/m68k/virt/config.c
downloadlinux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.tar.gz
linux-stable-3a2c4d55e32ad65efebdb6de44eef3bfa08bb49d.zip
treewide: refresh kmalloc_obj() conversionsgrafted
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 <kees+treewide@kernel.org>
Diffstat (limited to 'arch/m68k/virt/config.c')
-rw-r--r--arch/m68k/virt/config.c92
1 files changed, 92 insertions, 0 deletions
diff --git a/arch/m68k/virt/config.c b/arch/m68k/virt/config.c
new file mode 100644
index 000000000..b338e2a8d
--- /dev/null
+++ b/arch/m68k/virt/config.c
@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/reboot.h>
+#include <linux/serial_core.h>
+#include <clocksource/timer-goldfish.h>
+
+#include <asm/bootinfo.h>
+#include <asm/bootinfo-virt.h>
+#include <asm/byteorder.h>
+#include <asm/machdep.h>
+#include <asm/virt.h>
+#include <asm/config.h>
+
+struct virt_booter_data virt_bi_data;
+
+static void virt_get_model(char *str)
+{
+ /* str is 80 characters long */
+ sprintf(str, "QEMU Virtual M68K Machine (%u.%u.%u)",
+ (u8)(virt_bi_data.qemu_version >> 24),
+ (u8)(virt_bi_data.qemu_version >> 16),
+ (u8)(virt_bi_data.qemu_version >> 8));
+}
+static void virt_reset(void)
+{
+ do_kernel_restart(NULL);
+}
+
+/*
+ * Parse a virtual-m68k-specific record in the bootinfo
+ */
+
+int __init virt_parse_bootinfo(const struct bi_record *record)
+{
+ int unknown = 0;
+ const void *data = record->data;
+
+ switch (be16_to_cpu(record->tag)) {
+ case BI_VIRT_QEMU_VERSION:
+ virt_bi_data.qemu_version = be32_to_cpup(data);
+ break;
+ case BI_VIRT_GF_PIC_BASE:
+ virt_bi_data.pic.mmio = be32_to_cpup(data);
+ data += 4;
+ virt_bi_data.pic.irq = be32_to_cpup(data);
+ break;
+ case BI_VIRT_GF_RTC_BASE:
+ virt_bi_data.rtc.mmio = be32_to_cpup(data);
+ data += 4;
+ virt_bi_data.rtc.irq = be32_to_cpup(data);
+ break;
+ case BI_VIRT_GF_TTY_BASE:
+ virt_bi_data.tty.mmio = be32_to_cpup(data);
+ data += 4;
+ virt_bi_data.tty.irq = be32_to_cpup(data);
+ break;
+ case BI_VIRT_CTRL_BASE:
+ virt_bi_data.ctrl.mmio = be32_to_cpup(data);
+ data += 4;
+ virt_bi_data.ctrl.irq = be32_to_cpup(data);
+ break;
+ case BI_VIRT_VIRTIO_BASE:
+ virt_bi_data.virtio.mmio = be32_to_cpup(data);
+ data += 4;
+ virt_bi_data.virtio.irq = be32_to_cpup(data);
+ break;
+ default:
+ unknown = 1;
+ break;
+ }
+ return unknown;
+}
+
+static void __init virt_sched_init(void)
+{
+ goldfish_timer_init(virt_bi_data.rtc.irq,
+ (void __iomem *)virt_bi_data.rtc.mmio);
+}
+
+void __init config_virt(void)
+{
+ char earlycon[24];
+
+ snprintf(earlycon, sizeof(earlycon), "early_gf_tty,0x%08x",
+ virt_bi_data.tty.mmio);
+ setup_earlycon(earlycon);
+
+ mach_init_IRQ = virt_init_IRQ;
+ mach_sched_init = virt_sched_init;
+ mach_get_model = virt_get_model;
+ mach_reset = virt_reset;
+}