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authorKefeng Wang <wangkefeng.wang@huawei.com>2021-11-09 03:33:51 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2021-11-09 19:02:50 +0100
commita20deb3a348719adaf8c12e1bf4b599bfc51836e (patch)
treee57341508425e6f3199c6dc8d2aafd3d677482a7 /include/asm-generic/sections.h
parentkallsyms: fix address-checks for kernel related range (diff)
downloadlinux-a20deb3a348719adaf8c12e1bf4b599bfc51836e.tar.xz
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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/asm-generic/sections.h')
-rw-r--r--include/asm-generic/sections.h16
1 files changed, 16 insertions, 0 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
*