From 6778948f9de86c3cfaf36725a7c87dcff9ba247f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 08:20:59 +0000
Subject: [PATCH] kernel_5.10 no rt
---
kernel/arch/arc/kernel/unwind.c | 23 +++++++++--------------
1 files changed, 9 insertions(+), 14 deletions(-)
diff --git a/kernel/arch/arc/kernel/unwind.c b/kernel/arch/arc/kernel/unwind.c
index 9cf2ee8..74ad425 100644
--- a/kernel/arch/arc/kernel/unwind.c
+++ b/kernel/arch/arc/kernel/unwind.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
* Copyright (C) 2002-2006 Novell, Inc.
* Jan Beulich <jbeulich@novell.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*
* A simple API for unwinding kernel stacks. This is used for
* debugging and error reporting purposes. The kernel doesn't need
@@ -15,7 +12,7 @@
#include <linux/sched.h>
#include <linux/module.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
#include <linux/sort.h>
#include <linux/slab.h>
#include <linux/stop_machine.h>
@@ -45,10 +42,10 @@
#define EXTRA_INFO(f) { \
BUILD_BUG_ON_ZERO(offsetof(struct unwind_frame_info, f) \
- % FIELD_SIZEOF(struct unwind_frame_info, f)) \
+ % sizeof_field(struct unwind_frame_info, f)) \
+ offsetof(struct unwind_frame_info, f) \
- / FIELD_SIZEOF(struct unwind_frame_info, f), \
- FIELD_SIZEOF(struct unwind_frame_info, f) \
+ / sizeof_field(struct unwind_frame_info, f), \
+ sizeof_field(struct unwind_frame_info, f) \
}
#define PTREGS_INFO(f) EXTRA_INFO(regs.f)
@@ -181,8 +178,7 @@
*/
static void *__init unw_hdr_alloc_early(unsigned long sz)
{
- return __alloc_bootmem_nopanic(sz, sizeof(unsigned int),
- MAX_DMA_ADDRESS);
+ return memblock_alloc_from(sz, sizeof(unsigned int), MAX_DMA_ADDRESS);
}
static void init_unwind_table(struct unwind_table *table, const char *name,
@@ -576,6 +572,7 @@
#else
BUILD_BUG_ON(sizeof(u32) != sizeof(value));
#endif
+ fallthrough;
case DW_EH_PE_native:
if (end < (const void *)(ptr.pul + 1))
return 0;
@@ -830,7 +827,7 @@
case DW_CFA_def_cfa:
state->cfa.reg = get_uleb128(&ptr.p8, end);
unw_debug("cfa_def_cfa: r%lu ", state->cfa.reg);
- /*nobreak*/
+ fallthrough;
case DW_CFA_def_cfa_offset:
state->cfa.offs = get_uleb128(&ptr.p8, end);
unw_debug("cfa_def_cfa_offset: 0x%lx ",
@@ -838,7 +835,7 @@
break;
case DW_CFA_def_cfa_sf:
state->cfa.reg = get_uleb128(&ptr.p8, end);
- /*nobreak */
+ fallthrough;
case DW_CFA_def_cfa_offset_sf:
state->cfa.offs = get_sleb128(&ptr.p8, end)
* state->dataAlign;
@@ -1181,11 +1178,9 @@
#endif
/* update frame */
-#ifndef CONFIG_AS_CFI_SIGNAL_FRAME
if (frame->call_frame
&& !UNW_DEFAULT_RA(state.regs[retAddrReg], state.dataAlign))
frame->call_frame = 0;
-#endif
cfa = FRAME_REG(state.cfa.reg, unsigned long) + state.cfa.offs;
startLoc = min_t(unsigned long, UNW_SP(frame), cfa);
endLoc = max_t(unsigned long, UNW_SP(frame), cfa);
--
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