linux-kernel - [PATCH 2/3] alpha: don't reference obsolete termio struct for TC* constants

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Message-ID: <01fd56ffad6a29c92a93938a55f56dc4a6e8371e.1759347592.git.sam@gentoo.org>
Date: Wed,  1 Oct 2025 20:39:51 +0100
From: Sam James <sam@...too.org>
To: Richard Henderson <richard.henderson@...aro.org>,
	Matt Turner <mattst88@...il.com>
Cc: Sam James <sam@...too.org>,
	Stian Halseth <stian@....no>,
	linux-alpha@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 2/3] alpha: don't reference obsolete termio struct for TC* constants

Similar in nature to ab107276607af90b13a5994997e19b7b9731e251. glibc-2.42
drops the legacy termio struct, but the ioctls.h header still defines some
TC* constants in terms of termio (via sizeof). Hardcode the values instead.

This fixes building Python for example, which falls over like:
  ./Modules/termios.c:1119:16: error: invalid application of 'sizeof' to incomplete type 'struct termio'

Link: https://bugs.gentoo.org/961769
Link: https://bugs.gentoo.org/962600
Co-authored-by: Stian Halseth <stian@....no>
Signed-off-by: Sam James <sam@...too.org>
---
 arch/alpha/include/uapi/asm/ioctls.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/ioctls.h b/arch/alpha/include/uapi/asm/ioctls.h
index 971311605288f..857e280f95d1e 100644
--- a/arch/alpha/include/uapi/asm/ioctls.h
+++ b/arch/alpha/include/uapi/asm/ioctls.h
@@ -23,10 +23,10 @@
 #define TCSETSW		_IOW('t', 21, struct termios)
 #define TCSETSF		_IOW('t', 22, struct termios)
 
-#define TCGETA		_IOR('t', 23, struct termio)
-#define TCSETA		_IOW('t', 24, struct termio)
-#define TCSETAW		_IOW('t', 25, struct termio)
-#define TCSETAF		_IOW('t', 28, struct termio)
+#define TCGETA          0x5405
+#define TCSETA          0x5406
+#define TCSETAW         0x5407
+#define TCSETAF         0x5408
 
 #define TCSBRK		_IO('t', 29)
 #define TCXONC		_IO('t', 30)
-- 
2.51.0