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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/powerpc/boot/redboot-83xx.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/powerpc/boot/redboot-83xx.c')
-rw-r--r--arch/powerpc/boot/redboot-83xx.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/powerpc/boot/redboot-83xx.c b/arch/powerpc/boot/redboot-83xx.c
new file mode 100644
index 000000000..b610e78b4
--- /dev/null
+++ b/arch/powerpc/boot/redboot-83xx.c
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * RedBoot firmware support
+ *
+ * Author: Scott Wood <scottwood@freescale.com>
+ *
+ * Copyright (c) 2007 Freescale Semiconductor, Inc.
+ * Copyright (c) 2008 Codehermit
+ */
+
+#include "ops.h"
+#include "stdio.h"
+#include "redboot.h"
+#include "fsl-soc.h"
+#include "io.h"
+
+static bd_t bd;
+BSS_STACK(4096);
+
+#define MHZ(x) ((x + 500000) / 1000000)
+
+static void platform_fixups(void)
+{
+ void *node;
+
+ dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
+ dt_fixup_mac_addresses(bd.bi_enetaddr);
+ dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 16, bd.bi_busfreq);
+
+ node = finddevice("/soc/cpm/brg");
+ if (node) {
+ printf("BRG clock-frequency <- 0x%x (%dMHz)\r\n",
+ bd.bi_busfreq, MHZ(bd.bi_busfreq));
+ setprop(node, "clock-frequency", &bd.bi_busfreq, 4);
+ }
+
+}
+
+void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
+ unsigned long r6, unsigned long r7)
+{
+ memcpy(&bd, (char *)r3, sizeof(bd));
+
+ if (bd.bi_tag != 0x42444944)
+ return;
+
+ simple_alloc_init(_end,
+ bd.bi_memstart + bd.bi_memsize - (unsigned long)_end,
+ 32, 64);
+
+ fdt_init(_dtb_start);
+ serial_console_init();
+ platform_ops.fixups = platform_fixups;
+
+ loader_info.cmdline = (char *)bd.bi_cmdline;
+ loader_info.cmdline_len = strlen((char *)bd.bi_cmdline);
+}