diff options
| author | Kefeng Wang <wangkefeng.wang@huawei.com> | 2021-11-09 05:33:51 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-11-09 21:02:50 +0300 |
| commit | a20deb3a348719adaf8c12e1bf4b599bfc51836e (patch) | |
| tree | e57341508425e6f3199c6dc8d2aafd3d677482a7 /include | |
| parent | e7d5c4b0eb9be6ea5c2cfb510a9d6f56925118eb (diff) | |
| download | linux-a20deb3a348719adaf8c12e1bf4b599bfc51836e.tar.xz | |
sections: move and rename core_kernel_data() to is_kernel_core_data()
Move core_kernel_data() into sections.h and rename it to
is_kernel_core_data(), also make it return bool value, then update all the
callers.
Link: https://lkml.kernel.org/r/20210930071143.63410-4-wangkefeng.wang@huawei.com
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "David S. Miller" <davem@davemloft.net>
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: 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: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/sections.h | 16 | ||||
| -rw-r--r-- | include/linux/kernel.h | 1 |
2 files changed, 16 insertions, 1 deletions
diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h index 614fc809de34..7cba8ff10d3a 100644 --- a/include/asm-generic/sections.h +++ b/include/asm-generic/sections.h @@ -129,6 +129,22 @@ static inline bool init_section_intersects(void *virt, size_t size) } /** + * is_kernel_core_data - checks if the pointer address is located in the + * .data section + * + * @addr: address to check + * + * Returns: true if the address is located in .data, false otherwise. + * Note: On some archs it may return true for core RODATA, and false + * for others. But will always be true for core RW data. + */ +static inline bool is_kernel_core_data(unsigned long addr) +{ + return addr >= (unsigned long)_sdata && + addr < (unsigned long)_edata; +} + +/** * is_kernel_rodata - checks if the pointer address is located in the * .rodata section * diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 46ca4404fb93..23f57a2d5a13 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -227,7 +227,6 @@ 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 core_kernel_data(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); |