On Thu, May 21, 2020 at 1:44 AM He Zhe <[email protected]> wrote: > > Could you please merge this? This has been accepted but not in mainline > master. >
You need to be more specific .. I assume you mean to linux-yocto-dev, since it is already in the other kernel versions. I've cherry picked it from v5.4 and pushed the branches. Bruce > Thanks, > Zhe > > On 3/4/20 2:48 PM, He Zhe wrote: > > From: He Zhe <[email protected]> > > > > 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. > > > > https://lore.kernel.org/lkml/[email protected]/ > > > > Signed-off-by: He Zhe <[email protected]> > > --- > > 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, > > }; > > > > > > > -- - Thou shalt not follow the NULL pointer, for chaos and madness await thee at its end - "Use the force Harry" - Gandalf, Star Trek II
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