[PATCH v3 2/9] kallsyms: Fix address-checks for kernel related range

[Kefeng Wang]

The is_kernel_inittext/is_kernel_text/is_kernel function should not
include the end address(the labels _einittext, _etext and _end) when
check the address range, the issue exists since Linux v2.6.12.

Cc: Arnd Bergmann <a...@arndb.de>
Cc: Sergey Senozhatsky <sergey.senozhat...@gmail.com>
Cc: Petr Mladek <pmla...@suse.com>
Reviewed-by: Petr Mladek <pmla...@suse.com>
Reviewed-by: Steven Rostedt (VMware) <rost...@goodmis.org>
Acked-by: Sergey Senozhatsky <senozhat...@chromium.org>
Signed-off-by: Kefeng Wang <wangkefeng.w...@huawei.com>
---
 include/linux/kallsyms.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index 2a241e3f063f..b016c62f30a6 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -27,21 +27,21 @@ struct module;
 static inline int is_kernel_inittext(unsigned long addr)
 {
        if (addr >= (unsigned long)_sinittext
-           && addr <= (unsigned long)_einittext)
+           && 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))
+       if ((addr >= (unsigned long)_stext && addr < (unsigned long)_etext))
                return 1;
        return in_gate_area_no_mm(addr);
 }
 
 static inline int is_kernel(unsigned long addr)
 {
-       if (addr >= (unsigned long)_stext && addr <= (unsigned long)_end)
+       if (addr >= (unsigned long)_stext && addr < (unsigned long)_end)
                return 1;
        return in_gate_area_no_mm(addr);
 }
-- 
2.26.2