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Message-Id: <20180928071414.30703-3-brgl@bgdev.pl>
Date: Fri, 28 Sep 2018 09:14:12 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
"Rafael J . Wysocki" <rafael@...nel.org>,
Jassi Brar <jassisinghbrar@...il.com>,
Thierry Reding <thierry.reding@...il.com>,
Jonathan Hunter <jonathanh@...dia.com>,
Arnd Bergmann <arnd@...db.de>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
Geert Uytterhoeven <geert@...ux-m68k.org>,
Rasmus Villemoes <linux@...musvillemoes.dk>
Cc: linux-kernel@...r.kernel.org, linux-tegra@...r.kernel.org,
linux-arch@...r.kernel.org, linux-mm@...ck.org,
Bartosz Golaszewski <brgl@...ev.pl>
Subject: [PATCH v5 2/4] 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_const().
Signed-off-by: Bartosz Golaszewski <brgl@...ev.pl>
Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>
Acked-by: Mike Rapoport <rppt@...ux.vnet.ibm.com>
---
include/asm-generic/sections.h | 14 ++++++++++++++
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
--
2.18.0
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