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| author | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-03-22 16:09:17 +0300 |
|---|---|---|
| committer | Dominik Brodowski <linux@dominikbrodowski.net> | 2018-04-02 21:16:18 +0300 |
| commit | 3e2052e5dd4062ccc7a10e8860aa7d2e58627001 (patch) | |
| tree | 0597bf56694c0c24c19198ea0f85c1495ad5c329 /include/linux/compat.h | |
| parent | c679a08983db7c1eb09930570b92ff7c9fd59c1c (diff) | |
| download | linux-3e2052e5dd4062ccc7a10e8860aa7d2e58627001.tar.xz | |
syscalls/x86: auto-create compat_sys_*() prototypes
compat_sys_*() functions are no longer called from within the kernel on
x86 except from the system call table. Linking the system call does not
require compat_sys_*() function prototypes at least on x86. Therefore,
generate compat_sys_*() prototypes on-the-fly within the
COMPAT_SYSCALL_DEFINEx() macro, and remove x86-specific prototypes from
various header files.
Suggested-by: Andy Lutomirski <luto@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: David S. Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: x86@kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Diffstat (limited to 'include/linux/compat.h')
| -rw-r--r-- | include/linux/compat.h | 17 |
1 files changed, 3 insertions, 14 deletions
diff --git a/include/linux/compat.h b/include/linux/compat.h index f881cce627f6..8cb8710db0ab 100644 --- a/include/linux/compat.h +++ b/include/linux/compat.h @@ -49,6 +49,7 @@ COMPAT_SYSCALL_DEFINEx(6, _##name, __VA_ARGS__) #define COMPAT_SYSCALL_DEFINEx(x, name, ...) \ + asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\ asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))\ __attribute__((alias(__stringify(compat_SyS##name)))); \ static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__));\ @@ -507,8 +508,8 @@ int __compat_save_altstack(compat_stack_t __user *, unsigned long); /* * These syscall function prototypes are kept in the same order as - * include/uapi/asm-generic/unistd.h. Architecture specific entries go below, - * followed by deprecated or obsolete system calls. + * include/uapi/asm-generic/unistd.h. Deprecated or obsolete system calls + * go below. * * Please note that these prototypes here are only provided for information * purposes, for static analysis, and for linking from the syscall table. @@ -883,18 +884,6 @@ asmlinkage long compat_sys_pwritev64v2(unsigned long fd, /* - * Architecture-specific system calls - */ - -/* fs/quota/compat.c -- x86 only */ -asmlinkage long compat_sys_quotactl32(unsigned int cmd, - const char __user *special, qid_t id, void __user *addr); - -/* arch_prctl -- x86 */ -asmlinkage long compat_sys_arch_prctl(int option, unsigned long arg2); - - -/* * Deprecated system calls which are still defined in * include/uapi/asm-generic/unistd.h and wanted by >= 1 arch */ |