Messages in this thread | | | Subject | Re: [PATCH] x86/mce: Add compat_ioctl assignment to make it compatible with 32-bit system | From | He Zhe <> | Date | Thu, 16 Apr 2020 16:40:31 +0800 |
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Can this be considered for the moment?
Thanks, Zhe
On 3/4/20 2:39 PM, zhe.he@windriver.com wrote: > From: He Zhe <zhe.he@windriver.com> > > 32-bit user-space program would get errors like the following from ioctl > syscall due to missing compat_ioctl. > MCE_GET_RECORD_LEN: Inappropriate ioctl for device > > compat_ptr_ioctl is provided as a generic implementation of .compat_ioctl > file operation to ioctl functions that either ignore the argument or pass > a pointer to a compatible data type. > > Signed-off-by: He Zhe <zhe.he@windriver.com> > --- > arch/x86/kernel/cpu/mce/dev-mcelog.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/x86/kernel/cpu/mce/dev-mcelog.c b/arch/x86/kernel/cpu/mce/dev-mcelog.c > index 7c8958d..6c9b91b7 100644 > --- a/arch/x86/kernel/cpu/mce/dev-mcelog.c > +++ b/arch/x86/kernel/cpu/mce/dev-mcelog.c > @@ -328,6 +328,7 @@ static const struct file_operations mce_chrdev_ops = { > .write = mce_chrdev_write, > .poll = mce_chrdev_poll, > .unlocked_ioctl = mce_chrdev_ioctl, > + .compat_ioctl = compat_ptr_ioctl, > .llseek = no_llseek, > }; >
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