summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorKefeng Wang <wangkefeng.wang@huawei.com>2021-11-09 05:33:54 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2021-11-09 21:02:50 +0300
commitb9ad8fe7b8cab3814d1de41e8ddca602b2646f4b (patch)
treea2d027b46faf8e94ff17ffe602cc0ddb9070028e
parenta20deb3a348719adaf8c12e1bf4b599bfc51836e (diff)
downloadlinux-b9ad8fe7b8cab3814d1de41e8ddca602b2646f4b.tar.xz
sections: move is_kernel_inittext() into sections.h
The is_kernel_inittext() and init_kernel_text() are with same functionality, let's just keep is_kernel_inittext() and move it into sections.h, then update all the callers. Link: https://lkml.kernel.org/r/20210930071143.63410-5-wangkefeng.wang@huawei.com Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Alexander Potapenko <glider@google.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Andrey Konovalov <andreyknvl@gmail.com> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Matt Turner <mattst88@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Paul Mackerras <paulus@samba.org> Cc: Petr Mladek <pmladek@suse.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--arch/x86/kernel/unwind_orc.c2
-rw-r--r--include/asm-generic/sections.h14
-rw-r--r--include/linux/kallsyms.h8
-rw-r--r--include/linux/kernel.h1
-rw-r--r--kernel/extable.c12
5 files changed, 17 insertions, 20 deletions
diff --git a/arch/x86/kernel/unwind_orc.c b/arch/x86/kernel/unwind_orc.c
index a1202536fc57..d92ec2ced059 100644
--- a/arch/x86/kernel/unwind_orc.c
+++ b/arch/x86/kernel/unwind_orc.c
@@ -175,7 +175,7 @@ static struct orc_entry *orc_find(unsigned long ip)
}
/* vmlinux .init slow lookup: */
- if (init_kernel_text(ip))
+ if (is_kernel_inittext(ip))
return __orc_find(__start_orc_unwind_ip, __start_orc_unwind,
__stop_orc_unwind_ip - __start_orc_unwind_ip, ip);
diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h
index 7cba8ff10d3a..f82806ca8756 100644
--- a/include/asm-generic/sections.h
+++ b/include/asm-generic/sections.h
@@ -158,4 +158,18 @@ static inline bool is_kernel_rodata(unsigned long addr)
addr < (unsigned long)__end_rodata;
}
+/**
+ * is_kernel_inittext - checks if the pointer address is located in the
+ * .init.text section
+ *
+ * @addr: address to check
+ *
+ * Returns: true if the address is located in .init.text, false otherwise.
+ */
+static inline bool is_kernel_inittext(unsigned long addr)
+{
+ return addr >= (unsigned long)_sinittext &&
+ addr < (unsigned long)_einittext;
+}
+
#endif /* _ASM_GENERIC_SECTIONS_H_ */
diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index 62ce22b27ea8..bb5d9ec78e13 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -24,14 +24,6 @@
struct cred;
struct module;
-static inline int is_kernel_inittext(unsigned long addr)
-{
- if (addr >= (unsigned long)_sinittext
- && addr < (unsigned long)_einittext)
- return 1;
- return 0;
-}
-
static inline int is_kernel_text(unsigned long addr)
{
if ((addr >= (unsigned long)_stext && addr < (unsigned long)_etext))
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 23f57a2d5a13..be84ab369650 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -226,7 +226,6 @@ extern bool parse_option_str(const char *str, const char *option);
extern char *next_arg(char *args, char **param, char **val);
extern int core_kernel_text(unsigned long addr);
-extern int init_kernel_text(unsigned long addr);
extern int __kernel_text_address(unsigned long addr);
extern int kernel_text_address(unsigned long addr);
extern int func_ptr_is_kernel_text(void *ptr);
diff --git a/kernel/extable.c b/kernel/extable.c
index 0e3412b48bba..6505207aa7e6 100644
--- a/kernel/extable.c
+++ b/kernel/extable.c
@@ -62,14 +62,6 @@ const struct exception_table_entry *search_exception_tables(unsigned long addr)
return e;
}
-int init_kernel_text(unsigned long addr)
-{
- if (addr >= (unsigned long)_sinittext &&
- addr < (unsigned long)_einittext)
- return 1;
- return 0;
-}
-
int notrace core_kernel_text(unsigned long addr)
{
if (addr >= (unsigned long)_stext &&
@@ -77,7 +69,7 @@ int notrace core_kernel_text(unsigned long addr)
return 1;
if (system_state < SYSTEM_FREEING_INITMEM &&
- init_kernel_text(addr))
+ is_kernel_inittext(addr))
return 1;
return 0;
}
@@ -94,7 +86,7 @@ int __kernel_text_address(unsigned long addr)
* Since we are after the module-symbols check, there's
* no danger of address overlap:
*/
- if (init_kernel_text(addr))
+ if (is_kernel_inittext(addr))
return 1;
return 0;
}