diff options
| author | Bartosz Golaszewski <brgl@bgdev.pl> | 2018-10-14 17:20:08 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-10-16 12:53:27 +0200 |
| commit | 59c3f82ad1d6ed83fde9d7608afb9fb221a211ab (patch) | |
| tree | 32f4e02710f251dbd368f329289cdc6ea9c74905 | |
| parent | 0571967dfb5d2573c2a06871517d748932a899d1 (diff) | |
| download | lwn-59c3f82ad1d6ed83fde9d7608afb9fb221a211ab.tar.gz lwn-59c3f82ad1d6ed83fde9d7608afb9fb221a211ab.zip | |
mm: move is_kernel_rodata() to asm-generic/sections.h
Export this routine so that we can use it later in devm_kstrdup_const()
and devm_kfree().
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Mike Rapoport <rppt@linux.vnet.ibm.com>
Acked-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | include/asm-generic/sections.h | 14 | ||||
| -rw-r--r-- | mm/util.c | 7 |
2 files changed, 14 insertions, 7 deletions
diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h index 849cd8eb5ca0..d79abca81a52 100644 --- a/include/asm-generic/sections.h +++ b/include/asm-generic/sections.h @@ -141,4 +141,18 @@ static inline bool init_section_intersects(void *virt, size_t size) return memory_intersects(__init_begin, __init_end, virt, size); } +/** + * is_kernel_rodata - checks if the pointer address is located in the + * .rodata section + * + * @addr: address to check + * + * Returns: true if the address is located in .rodata, false otherwise. + */ +static inline bool is_kernel_rodata(unsigned long addr) +{ + return addr >= (unsigned long)__start_rodata && + addr < (unsigned long)__end_rodata; +} + #endif /* _ASM_GENERIC_SECTIONS_H_ */ diff --git a/mm/util.c b/mm/util.c index 9e3ebd2ef65f..470f5cd80b64 100644 --- a/mm/util.c +++ b/mm/util.c @@ -15,17 +15,10 @@ #include <linux/vmalloc.h> #include <linux/userfaultfd_k.h> -#include <asm/sections.h> #include <linux/uaccess.h> #include "internal.h" -static inline int is_kernel_rodata(unsigned long addr) -{ - return addr >= (unsigned long)__start_rodata && - addr < (unsigned long)__end_rodata; -} - /** * kfree_const - conditionally free memory * @x: pointer to the memory |