linux-kernel - [PATCH v4] sparc: don't reference obsolete termio struct for TC* constants

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Message-ID: <db618c0a5a47e512fafc06304042cdda147c5088.1770212429.git.sam@gentoo.org>
Date: Wed,  4 Feb 2026 13:40:29 +0000
From: Sam James <sam@...too.org>
To: "David S. Miller" <davem@...emloft.net>,
	Andreas Larsson <andreas@...sler.com>
Cc: glaubitz@...sik.fu-berlin.de,
	Sam James <sam@...too.org>,
	sparclinux@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v4] sparc: don't reference obsolete termio struct for TC* constants

Similar in nature to commit ab107276607a ("powerpc: Fix struct termio related ioctl macros").

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
Signed-off-by: Sam James <sam@...too.org>
---
v4: Tweak commit message for commit ref and add comments for old definitions.
v3: Fix constants.
v2: Fix title.

 arch/sparc/include/uapi/asm/ioctls.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/sparc/include/uapi/asm/ioctls.h b/arch/sparc/include/uapi/asm/ioctls.h
index 7fd2f5873c9e..a8bbdf9877a4 100644
--- a/arch/sparc/include/uapi/asm/ioctls.h
+++ b/arch/sparc/include/uapi/asm/ioctls.h
@@ -5,10 +5,10 @@
 #include <asm/ioctl.h>
 
 /* Big T */
-#define TCGETA		_IOR('T', 1, struct termio)
-#define TCSETA		_IOW('T', 2, struct termio)
-#define TCSETAW		_IOW('T', 3, struct termio)
-#define TCSETAF		_IOW('T', 4, struct termio)
+#define TCGETA          0x40125401 /* _IOR('T', 1, struct termio) */
+#define TCSETA          0x80125402 /* _IOW('T', 2, struct termio) */
+#define TCSETAW         0x80125403 /* _IOW('T', 3, struct termio) */
+#define TCSETAF         0x80125404 /* _IOW('T', 4, struct termio) */
 #define TCSBRK		_IO('T', 5)
 #define TCXONC		_IO('T', 6)
 #define TCFLSH		_IO('T', 7)
-- 
2.53.0