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* [PATCH] alpha: don't reference obsolete termio struct for TC* constants
@ 2025-10-01 23:00 Sam James
  2025-10-19 19:18 ` Sam James
                   ` (3 more replies)
  0 siblings, 4 replies; 8+ messages in thread
From: Sam James @ 2025-10-01 23:00 UTC (permalink / raw)
  To: Richard Henderson, Matt Turner
  Cc: Sam James, Stian Halseth, Magnus Lindholm, linux-alpha,
	linux-kernel

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@itx.no>
Co-authored-by: Magnus Lindholm <linmag7@gmail.com>
Signed-off-by: Sam James <sam@gentoo.org>
---
v3: Fix constants per Magnus.
v2: Fix title.

 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..a09d04b49cc65 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          0x40127417
+#define TCSETA          0x80127418
+#define TCSETAW         0x80127419
+#define TCSETAF         0x8012741c
 
 #define TCSBRK		_IO('t', 29)
 #define TCXONC		_IO('t', 30)
-- 
2.51.0


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Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2025-10-01 23:00 [PATCH] alpha: don't reference obsolete termio struct for TC* constants Sam James
2025-10-19 19:18 ` Sam James
2025-11-29 16:31 ` Magnus Lindholm
2025-11-29 17:59 ` Magnus Lindholm
2025-12-01  3:50 ` Maciej W. Rozycki
2025-12-01  3:59   ` Sam James
2025-12-01  6:34     ` Magnus Lindholm
2025-12-01  6:40       ` Sam James

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