add ax88772_rst

hc

2024-05-10 9999e48639b3cecb08ffb37358bcba3b48161b29

 kernel/kernel/extable.c
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@@ -1,19 +1,7 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /* Rewritten by Rusty Russell, on the backs of many others...
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    Copyright (C) 2001 Rusty Russell, 2002 Rusty Russell IBM.
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-    This program is free software; you can redistribute it and/or modify
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-    it under the terms of the GNU General Public License as published by
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-    the Free Software Foundation; either version 2 of the License, or
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-    (at your option) any later version.
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-
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-    This program is distributed in the hope that it will be useful,
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-    but WITHOUT ANY WARRANTY; without even the implied warranty of
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-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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-    GNU General Public License for more details.
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-
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-    You should have received a copy of the GNU General Public License
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-    along with this program; if not, write to the Free Software
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-    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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 */
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 #include <linux/ftrace.h>
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 #include <linux/memory.h>
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@@ -46,10 +34,19 @@
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 /* Sort the kernel's built-in exception table */
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 void __init sort_main_extable(void)
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 {
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-	if (main_extable_sort_needed && __stop___ex_table > __start___ex_table) {
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+	if (main_extable_sort_needed &&
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+	    &__stop___ex_table > &__start___ex_table) {
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 		pr_notice("Sorting __ex_table...\n");
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 		sort_extable(__start___ex_table, __stop___ex_table);
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 	}
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+}
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+
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+/* Given an address, look for it in the kernel exception table */
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+const
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+struct exception_table_entry *search_kernel_exception_table(unsigned long addr)
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+{
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+	return search_extable(__start___ex_table,
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+			      __stop___ex_table - __start___ex_table, addr);
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 }
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 /* Given an address, look for it in the exception tables. */
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@@ -57,10 +54,11 @@
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 {
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 	const struct exception_table_entry *e;
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-	e = search_extable(__start___ex_table,
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-			   __stop___ex_table - __start___ex_table, addr);
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+	e = search_kernel_exception_table(addr);
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 	if (!e)
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 		e = search_module_extables(addr);
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+	if (!e)
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+		e = search_bpf_extables(addr);
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 	return e;
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 }
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@@ -134,8 +132,9 @@
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 	 * triggers a stack trace, or a WARN() that happens during
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 	 * coming back from idle, or cpu on or offlining.
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 	 *
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-	 * is_module_text_address() as well as the kprobe slots
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-	 * and is_bpf_text_address() require RCU to be watching.
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+	 * is_module_text_address() as well as the kprobe slots,
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+	 * is_bpf_text_address() and is_bpf_image_address require
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+	 * RCU to be watching.
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 	 */
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 	no_rcu = !rcu_is_watching();
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