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linux/scripts/dtc/libfdt/fdt_wip.c
Rob Herring 6e9c9686d8 scripts/dtc: Update to upstream version v1.6.0-31-gcbca977ea121
This adds the following commits from upstream:

cbca977ea121 checks: Allow PCI bridge child nodes without an address
73e0f143b73d libfdt: fdt_strerror(): Fix comparison warning
6c2be7d85315 libfdt: fdt_get_string(): Fix sequential write comparison warnings
82525f41d59e libfdt: libfdt_wip: Fix comparison warning
fb1f65f15832 libfdt: fdt_create_with_flags(): Fix comparison warning
f28aa271000b libfdt: fdt_move(): Fix comparison warnings
3d7c6f44195a libfdt: fdt_add_string_(): Fix comparison warning
10f682788c30 libfdt: fdt_node_offset_by_phandle(): Fix comparison warning
07158f4cf2a2 libfdt: overlay: Fix comparison warning
ce9e1f25a7de libfdt: fdt_resize(): Fix comparison warning
faa76fc10bc5 libfdt: fdt_splice_(): Fix comparison warning
54dca0985316 libfdt: fdt_get_string(): Fix comparison warnings
f8e11e61624e libfdt: fdt_grab_space_(): Fix comparison warning
0c43d4d7bf5a libfdt: fdt_mem_rsv(): Fix comparison warnings
442ea3dd1579 libfdt: fdt_offset_ptr(): Fix comparison warnings
ca19c3db2bf6 Makefile: Specify cflags for libyaml
7bb86f1c0956 libfdt: fix fdt_check_node_offset_ w/ VALID_INPUT
3d522abc7571 dtc: Include stdlib.h in util.h
808cdaaf524f dtc: Avoid UB when shifting
3e3138b4a956 libfdt: fix fdt_check_full buffer overrun

Signed-off-by: Rob Herring <robh@kernel.org>
2020-10-12 09:58:15 -05:00

95 lines
1.9 KiB
C

// SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
/*
* libfdt - Flat Device Tree manipulation
* Copyright (C) 2006 David Gibson, IBM Corporation.
*/
#include "libfdt_env.h"
#include <fdt.h>
#include <libfdt.h>
#include "libfdt_internal.h"
int fdt_setprop_inplace_namelen_partial(void *fdt, int nodeoffset,
const char *name, int namelen,
uint32_t idx, const void *val,
int len)
{
void *propval;
int proplen;
propval = fdt_getprop_namelen_w(fdt, nodeoffset, name, namelen,
&proplen);
if (!propval)
return proplen;
if ((unsigned)proplen < (len + idx))
return -FDT_ERR_NOSPACE;
memcpy((char *)propval + idx, val, len);
return 0;
}
int fdt_setprop_inplace(void *fdt, int nodeoffset, const char *name,
const void *val, int len)
{
const void *propval;
int proplen;
propval = fdt_getprop(fdt, nodeoffset, name, &proplen);
if (!propval)
return proplen;
if (proplen != len)
return -FDT_ERR_NOSPACE;
return fdt_setprop_inplace_namelen_partial(fdt, nodeoffset, name,
strlen(name), 0,
val, len);
}
static void fdt_nop_region_(void *start, int len)
{
fdt32_t *p;
for (p = start; (char *)p < ((char *)start + len); p++)
*p = cpu_to_fdt32(FDT_NOP);
}
int fdt_nop_property(void *fdt, int nodeoffset, const char *name)
{
struct fdt_property *prop;
int len;
prop = fdt_get_property_w(fdt, nodeoffset, name, &len);
if (!prop)
return len;
fdt_nop_region_(prop, len + sizeof(*prop));
return 0;
}
int fdt_node_end_offset_(void *fdt, int offset)
{
int depth = 0;
while ((offset >= 0) && (depth >= 0))
offset = fdt_next_node(fdt, offset, &depth);
return offset;
}
int fdt_nop_node(void *fdt, int nodeoffset)
{
int endoffset;
endoffset = fdt_node_end_offset_(fdt, nodeoffset);
if (endoffset < 0)
return endoffset;
fdt_nop_region_(fdt_offset_ptr_w(fdt, nodeoffset, 0),
endoffset - nodeoffset);
return 0;
}