[Xen-users] Xen serial console has only 7 bit?

["Manfred Haertel, DB3HM" <Manfred.Haertel@xxxxxxxxxxxx>]

I tried to use the Xen serial console, as described in 
http://wiki.xen.org/wiki/Xen_Serial_Console . I also used the resulting 
xvc0 device as a console of the DOM0 Linux.
Everything was working fine, and I could explore the features of the Xen 
console. Almost everything... Finally I discovered, that when logging in 
to Linux on the serial console, I could not use german umlauts. It 
seemed as if the most significant bit was masked off during input.
After a long search, what I was doing wrong I saw this line of code 
inside the Xen serial driver:
http://xenbits.xen.org/gitweb/?p=xen.git;a=blob;f=xen/drivers/char/serial.c;h=c583a48c0823e7bf2619a1a63f05da3bfbd20e3d;hb=HEAD#l300

OK, this explains the behaviour. But what is the intention of this line? 
Shouldn't this actually be something like
if (handle & SERHND_HI)
{
    c &= 0x7f;
}
return c;

--
Manfred HÃrtel, DB3HM    mailto:Manfred.Haertel@xxxxxxxxxxxx
                         http://rz-home.de/mhaertel

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