linux-kernel - [PATCH] xtensa: add asm-prototypes.h

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <20230609023433.1694994-1-jcmvbkbc@gmail.com>
Date:   Thu,  8 Jun 2023 19:34:33 -0700
From:   Max Filippov <jcmvbkbc@...il.com>
To:     linux-kernel@...r.kernel.org
Cc:     Chris Zankel <chris@...kel.net>, Max Filippov <jcmvbkbc@...il.com>
Subject: [PATCH] xtensa: add asm-prototypes.h

Move assembly source prototypes from xtensa_ksyms.c to
asm/asm-prototypes.h and enable HAVE_ASM_MODVERSIONS for xtensa.

Signed-off-by: Max Filippov <jcmvbkbc@...il.com>
---
 arch/xtensa/Kconfig                      |  1 +
 arch/xtensa/include/asm/asm-prototypes.h | 22 ++++++++++++++++++++++
 arch/xtensa/kernel/xtensa_ksyms.c        | 16 +---------------
 3 files changed, 24 insertions(+), 15 deletions(-)
 create mode 100644 arch/xtensa/include/asm/asm-prototypes.h

diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 3c6e5471f025..46051edc5ed3 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -35,6 +35,7 @@ config XTENSA
 	select HAVE_ARCH_KCSAN
 	select HAVE_ARCH_SECCOMP_FILTER
 	select HAVE_ARCH_TRACEHOOK
+	select HAVE_ASM_MODVERSIONS
 	select HAVE_CONTEXT_TRACKING_USER
 	select HAVE_DEBUG_KMEMLEAK
 	select HAVE_DMA_CONTIGUOUS
diff --git a/arch/xtensa/include/asm/asm-prototypes.h b/arch/xtensa/include/asm/asm-prototypes.h
new file mode 100644
index 000000000000..5220226e956c
--- /dev/null
+++ b/arch/xtensa/include/asm/asm-prototypes.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_PROTOTYPES_H
+#define __ASM_PROTOTYPES_H
+
+#include <asm-generic/asm-prototypes.h>
+
+/*
+ * gcc internal math functions
+ */
+long long __ashrdi3(long long, int);
+long long __ashldi3(long long, int);
+long long __bswapdi2(long long);
+int __bswapsi2(int);
+long long __lshrdi3(long long, int);
+int __divsi3(int, int);
+int __modsi3(int, int);
+int __mulsi3(int, int);
+unsigned int __udivsi3(unsigned int, unsigned int);
+unsigned int __umodsi3(unsigned int, unsigned int);
+unsigned long long __umulsidi3(unsigned int, unsigned int);
+
+#endif /* __ASM_PROTOTYPES_H */
diff --git a/arch/xtensa/kernel/xtensa_ksyms.c b/arch/xtensa/kernel/xtensa_ksyms.c
index 17a7ef86fd0d..3b2c088ae11f 100644
--- a/arch/xtensa/kernel/xtensa_ksyms.c
+++ b/arch/xtensa/kernel/xtensa_ksyms.c
@@ -20,6 +20,7 @@
 #include <linux/in6.h>
 
 #include <linux/uaccess.h>
+#include <asm/asm-prototypes.h>
 #include <asm/cacheflush.h>
 #include <asm/checksum.h>
 #include <asm/dma.h>
@@ -51,21 +52,6 @@ EXPORT_SYMBOL(copy_page);
 
 EXPORT_SYMBOL(empty_zero_page);
 
-/*
- * gcc internal math functions
- */
-extern long long __ashrdi3(long long, int);
-extern long long __ashldi3(long long, int);
-extern long long __bswapdi2(long long);
-extern int __bswapsi2(int);
-extern long long __lshrdi3(long long, int);
-extern int __divsi3(int, int);
-extern int __modsi3(int, int);
-extern int __mulsi3(int, int);
-extern unsigned int __udivsi3(unsigned int, unsigned int);
-extern unsigned int __umodsi3(unsigned int, unsigned int);
-extern unsigned long long __umulsidi3(unsigned int, unsigned int);
-
 EXPORT_SYMBOL(__ashldi3);
 EXPORT_SYMBOL(__ashrdi3);
 EXPORT_SYMBOL(__bswapdi2);
-- 
2.30.2