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Commit c93e0f6c authored by Heiko Carstens's avatar Heiko Carstens
Browse files

mm/compat: convert to COMPAT_SYSCALL_DEFINE 



Convert all compat system call functions where all parameter types
have a size of four or less than four bytes, or are pointer types
to COMPAT_SYSCALL_DEFINE.
The implicit casts within COMPAT_SYSCALL_DEFINE will perform proper
zero and sign extension to 64 bit of all parameters if needed.

Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
parent 361d93c4

mm/mempolicy.c

+9 −9
Original line number Diff line number Diff line
@@ -1556,10 +1556,10 @@ SYSCALL_DEFINE5(get_mempolicy, int __user *, policy, 


#ifdef CONFIG_COMPAT



asmlinkage long compat_sys_get_mempolicy(int __user *policy,

				     compat_ulong_t __user *nmask,

				     compat_ulong_t maxnode,

				     compat_ulong_t addr, compat_ulong_t flags)

COMPAT_SYSCALL_DEFINE5(get_mempolicy, int __user *, policy,

		       compat_ulong_t __user *, nmask,

		       compat_ulong_t, maxnode,

		       compat_ulong_t, addr, compat_ulong_t, flags)

{

	long err;

	unsigned long __user *nm = NULL;
@@ -1586,8 +1586,8 @@ asmlinkage long compat_sys_get_mempolicy(int __user *policy, 
	return err;

}



asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask,

				     compat_ulong_t maxnode)

COMPAT_SYSCALL_DEFINE3(set_mempolicy, int, mode, compat_ulong_t __user *, nmask,

		       compat_ulong_t, maxnode)

{

	long err = 0;

	unsigned long __user *nm = NULL;
@@ -1609,9 +1609,9 @@ asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask, 
	return sys_set_mempolicy(mode, nm, nr_bits+1);

}



asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len,

			     compat_ulong_t mode, compat_ulong_t __user *nmask,

			     compat_ulong_t maxnode, compat_ulong_t flags)

COMPAT_SYSCALL_DEFINE6(mbind, compat_ulong_t, start, compat_ulong_t, len,

		       compat_ulong_t, mode, compat_ulong_t __user *, nmask,

		       compat_ulong_t, maxnode, compat_ulong_t, flags)

{

	long err = 0;

	unsigned long __user *nm = NULL;