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kexec/compat: convert to COMPAT_SYSCALL_DEFINE with changing parameter types

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In order to allow the COMPAT_SYSCALL_DEFINE macro generate code that
performs proper zero and sign extension convert all 64 bit parameters
to their corresponding 32 bit compat counterparts.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
This commit is contained in:
Heiko Carstens
2014-03-04 17:13:42 +01:00
parent 3a49a0f718
commit ca2c405ab9
3 changed files with 7 additions and 13 deletions
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8
kernel/kexec.c
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@@ -1039,10 +1039,10 @@ void __weak crash_unmap_reserved_pages(void)
{}
#ifdef CONFIG_COMPAT
asmlinkage long compat_sys_kexec_load(unsigned long entry,
unsigned long nr_segments,
struct compat_kexec_segment __user *segments,
unsigned long flags)
COMPAT_SYSCALL_DEFINE4(kexec_load, compat_ulong_t, entry,
compat_ulong_t, nr_segments,
struct compat_kexec_segment __user *, segments,
compat_ulong_t, flags)
{
struct compat_kexec_segment in;
struct kexec_segment out, __user *ksegments;