linux-kernel - [PATCH v3 8/9] asm-generic: remove extra strn{cpy_from,len}

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Date:   Thu, 22 Jul 2021 14:48:13 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     linux-arch@...r.kernel.org
Cc:     Arnd Bergmann <arnd@...db.de>,
        "James E.J. Bottomley" <James.Bottomley@...senPartnership.com>,
        Al Viro <viro@...iv.linux.org.uk>,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>,
        Brian Cain <bcain@...eaurora.org>,
        Chris Zankel <chris@...kel.net>,
        Christian Borntraeger <borntraeger@...ibm.com>,
        Christoph Hellwig <hch@....de>, Guo Ren <guoren@...nel.org>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Helge Deller <deller@....de>, Jeff Dike <jdike@...toit.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Max Filippov <jcmvbkbc@...il.com>,
        Michal Simek <monstr@...str.eu>,
        Richard Weinberger <richard@....at>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Vineet Gupta <vgupta@...opsys.com>,
        Yoshinori Sato <ysato@...rs.sourceforge.jp>,
        linux-csky@...r.kernel.org, linux-hexagon@...r.kernel.org,
        linux-ia64@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mips@...r.kernel.org, linux-parisc@...r.kernel.org,
        linux-s390@...r.kernel.org, linux-snps-arc@...ts.infradead.org,
        linux-um@...ts.infradead.org, linux-xtensa@...ux-xtensa.org,
        uclinux-h8-devel@...ts.sourceforge.jp
Subject: [PATCH v3 8/9] asm-generic: remove extra strn{cpy_from,len}_user declarations

From: Arnd Bergmann <arnd@...db.de>

As these are now in asm-generic, it's no longer necessary to
declare them in the architecture.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 arch/arc/include/asm/uaccess.h     | 5 -----
 arch/hexagon/include/asm/uaccess.h | 6 ------
 arch/um/include/asm/uaccess.h      | 5 +----
 3 files changed, 1 insertion(+), 15 deletions(-)

diff --git a/arch/arc/include/asm/uaccess.h b/arch/arc/include/asm/uaccess.h
index 754a23f26736..783bfdb3bfa3 100644
--- a/arch/arc/include/asm/uaccess.h
+++ b/arch/arc/include/asm/uaccess.h
@@ -667,11 +667,6 @@ extern unsigned long arc_clear_user_noinline(void __user *to,
 #define __clear_user(d, n)		arc_clear_user_noinline(d, n)
 #endif
 
-extern long strncpy_from_user(char *dst, const char __user *src, long count);
-#define strncpy_from_user(d, s, n)	strncpy_from_user(d, s, n)
-extern long strnlen_user(const char __user *src, long n);
-#define strnlen_user(s, n)		strnlen_user(s, n)
-
 #include <asm/segment.h>
 #include <asm-generic/uaccess.h>
 
diff --git a/arch/hexagon/include/asm/uaccess.h b/arch/hexagon/include/asm/uaccess.h
index d950df12d8c5..ef5bfef8d490 100644
--- a/arch/hexagon/include/asm/uaccess.h
+++ b/arch/hexagon/include/asm/uaccess.h
@@ -57,12 +57,6 @@ unsigned long raw_copy_to_user(void __user *to, const void *from,
 __kernel_size_t __clear_user_hexagon(void __user *dest, unsigned long count);
 #define __clear_user(a, s) __clear_user_hexagon((a), (s))
 
-extern long strnlen_user(const char __user *src, long n);
-#define strnlen_user strnlen_user
-
-extern long strncpy_from_user(char *dst, const char __user *src, long n)
-#define strncpy_from_user strncpy_from_user
-
 #include <asm-generic/uaccess.h>
 
 
diff --git a/arch/um/include/asm/uaccess.h b/arch/um/include/asm/uaccess.h
index 3bf209f683f8..191ef36dd543 100644
--- a/arch/um/include/asm/uaccess.h
+++ b/arch/um/include/asm/uaccess.h
@@ -23,16 +23,13 @@
 
 extern unsigned long raw_copy_from_user(void *to, const void __user *from, unsigned long n);
 extern unsigned long raw_copy_to_user(void __user *to, const void *from, unsigned long n);
-extern long strncpy_from_user(char *dst, const char __user *src, long count);
-extern long strnlen_user(const void __user *str, long len);
 extern unsigned long __clear_user(void __user *mem, unsigned long len);
 static inline int __access_ok(unsigned long addr, unsigned long size);
 
 /* Teach asm-generic/uaccess.h that we have C functions for these. */
 #define __access_ok __access_ok
 #define __clear_user __clear_user
-#define strnlen_user strnlen_user
-#define strncpy_from_user strncpy_from_user
+
 #define INLINE_COPY_FROM_USER
 #define INLINE_COPY_TO_USER
 
-- 
2.29.2