linux-kernel - Re: Define termios_1 functions for powerpc, s390, avr32 and frv

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Message-Id: <20070914.113324.104043149.davem@davemloft.net>
Date:	Fri, 14 Sep 2007 11:33:24 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	akpm@...ux-foundation.org
Cc:	lethal@...ux-sh.org, mikey@...ling.org, jdi@....org,
	paulus@...ba.org, torvalds@...ux-foundation.org,
	tony@...eyournoodle.com, linux-kernel@...r.kernel.org,
	linuxppc-dev@...abs.org, alan@...hat.com,
	heiko.carstens@...ibm.com, hskinnemoen@...el.com,
	dhowells@...hat.com
Subject: Re: Define termios_1 functions for powerpc, s390, avr32 and frv

From: Andrew Morton <akpm@...ux-foundation.org>
Date: Thu, 13 Sep 2007 03:55:06 -0700

> I think we need to go with Tony's patch.  sparc32 and sparc64 are
> presently broken too, and the patch which converts sparc to use the
> new interfaces introduces a few build errors.

The problem with the asm-generic/termios.h thing is it only works
if your copying functions are just a copy_{to,from}_user() and you
can define that __ARCH_* macro.

In retrospect what that header should do is, outside of the
ARCH_* block, define the foo_1 interfaces plainly to foo.

Alternatively, here is a patch that gets sparc compiling and
working again in the current tree.

This whole termios thing hasn't been handled very well, and it's maybe
not what we should be doing so late in the -rc cycle.  And yes,
this is coming from the guy who added the TCP oops'er two weeks ago
:-P

[SPARC]: Fix build due to termios changes.

Signed-off-by: David S. Miller <davem@...emloft.net>

diff --git a/include/asm-sparc/termios.h b/include/asm-sparc/termios.h
index d767f20..25e9cbb 100644
--- a/include/asm-sparc/termios.h
+++ b/include/asm-sparc/termios.h
@@ -142,6 +142,11 @@ struct winsize {
 	0; \
 })
 
+#define user_termios_to_kernel_termios_1(k, u) \
+	user_termios_to_kernel_termios(k, u)
+#define kernel_termios_to_user_termios_1(u, k) \
+	kernel_termios_to_user_termios(u, k)
+
 #endif	/* __KERNEL__ */
 
 #endif /* _SPARC_TERMIOS_H */
diff --git a/include/asm-sparc64/termios.h b/include/asm-sparc64/termios.h
index f05d390..6fc71e6 100644
--- a/include/asm-sparc64/termios.h
+++ b/include/asm-sparc64/termios.h
@@ -145,6 +145,11 @@ struct winsize {
 	err; \
 })
 
+#define user_termios_to_kernel_termios_1(k, u) \
+	user_termios_to_kernel_termios(k, u)
+#define kernel_termios_to_user_termios_1(u, k) \
+	kernel_termios_to_user_termios(u, k)
+
 #endif	/* __KERNEL__ */
 
 #endif /* _SPARC64_TERMIOS_H */
-
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