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authorChristoph Hellwig <hch@lst.de>2020-09-07 07:58:21 +0200
committerPalmer Dabbelt <palmerdabbelt@google.com>2020-10-04 10:27:02 -0700
commit3c57fa13f6bf3906643034c57736c778ce63fa55 (patch)
tree04270a878e3787dc1f8c206203263c595dc9a708
parent2d2d255467d4ea927fbf606c8b584512edee0f7b (diff)
asm-generic: make the set_fs implementation optional
Put all the set_fs related code under CONFIG_SET_FS so that asm-generic/uaccess.h can be used for set_fs-less builds. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
-rw-r--r--include/asm-generic/uaccess.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h
index b367f339be1a..45f9872fd747 100644
--- a/include/asm-generic/uaccess.h
+++ b/include/asm-generic/uaccess.h
@@ -94,6 +94,7 @@ raw_copy_to_user(void __user *to, const void *from, unsigned long n)
#define INLINE_COPY_TO_USER
#endif /* CONFIG_UACCESS_MEMCPY */
+#ifdef CONFIG_SET_FS
#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) })
#ifndef KERNEL_DS
@@ -116,6 +117,7 @@ static inline void set_fs(mm_segment_t fs)
#ifndef uaccess_kernel
#define uaccess_kernel() (get_fs().seg == KERNEL_DS.seg)
#endif
+#endif /* CONFIG_SET_FS */
#define access_ok(addr, size) __access_ok((unsigned long)(addr),(size))