linux-kernel - [PATCH v2 6/8] make generic INIT_C

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Message-Id: <20220821010239.1554132-6-viro@zeniv.linux.org.uk>
Date:   Sun, 21 Aug 2022 02:02:37 +0100
From:   Al Viro <viro@...iv.linux.org.uk>
To:     linux-arch@...r.kernel.org
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH v2 6/8] make generic INIT_C_CC a bit more generic

turn it into an array initializer; then alpha, mips and powerpc
variants fold into it.

Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
 arch/alpha/include/asm/termios.h   |  8 --------
 arch/mips/include/asm/termios.h    |  9 ---------
 arch/powerpc/include/asm/termios.h |  3 ---
 include/linux/termios_internal.h   | 15 ++++++++++++++-
 4 files changed, 14 insertions(+), 21 deletions(-)

diff --git a/arch/alpha/include/asm/termios.h b/arch/alpha/include/asm/termios.h
index 9cc784d0a83c..3894fd92c508 100644
--- a/arch/alpha/include/asm/termios.h
+++ b/arch/alpha/include/asm/termios.h
@@ -5,12 +5,4 @@
 #include <linux/uaccess.h>
 #include <uapi/asm/termios.h>
 
-/*	eof=^D		eol=\0		eol2=\0		erase=del
-	werase=^W	kill=^U		reprint=^R	sxtc=\0
-	intr=^C		quit=^\		susp=^Z		<OSF/1 VDSUSP>
-	start=^Q	stop=^S		lnext=^V	discard=^O
-	vmin=\1		vtime=\0
-*/
-#define INIT_C_CC "\004\000\000\177\027\025\022\000\003\034\032\000\021\023\026\017\001\000"
-
 #endif	/* _ALPHA_TERMIOS_H */
diff --git a/arch/mips/include/asm/termios.h b/arch/mips/include/asm/termios.h
index 059c800afaa1..12bc56857bf1 100644
--- a/arch/mips/include/asm/termios.h
+++ b/arch/mips/include/asm/termios.h
@@ -12,13 +12,4 @@
 #include <linux/uaccess.h>
 #include <uapi/asm/termios.h>
 
-/*
- *	intr=^C		quit=^\		erase=del	kill=^U
- *	vmin=\1		vtime=\0	eol2=\0		swtc=\0
- *	start=^Q	stop=^S		susp=^Z		vdsusp=
- *	reprint=^R	discard=^O	werase=^W	lnext=^V
- *	eof=^D		eol=\0
- */
-#define INIT_C_CC "\003\034\177\025\1\0\0\0\021\023\032\0\022\017\027\026\004\0"
-
 #endif /* _ASM_TERMIOS_H */
diff --git a/arch/powerpc/include/asm/termios.h b/arch/powerpc/include/asm/termios.h
index e18a05a6ed34..83794533f607 100644
--- a/arch/powerpc/include/asm/termios.h
+++ b/arch/powerpc/include/asm/termios.h
@@ -10,7 +10,4 @@
 
 #include <uapi/asm/termios.h>
 
-/*                   ^C  ^\ del  ^U  ^D   1   0   0   0   0  ^W  ^R  ^Z  ^Q  ^S  ^V  ^O  */
-#define INIT_C_CC "\003\034\177\025\004\001\000\000\000\000\027\022\032\021\023\026\017"
-
 #endif	/* _ASM_POWERPC_TERMIOS_H */
diff --git a/include/linux/termios_internal.h b/include/linux/termios_internal.h
index 7eb3598c109d..8a53141ab44a 100644
--- a/include/linux/termios_internal.h
+++ b/include/linux/termios_internal.h
@@ -12,7 +12,20 @@
 	reprint=^R	discard=^O	werase=^W	lnext=^V
 	eol2=\0
 */
-#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
+#define INIT_C_CC {		\
+	[VINTR] = 'C'-0x40,	\
+	[VQUIT] = '\\'-0x40,	\
+	[VERASE] = '\177',	\
+	[VKILL] = 'U'-0x40,	\
+	[VEOF] = 'D'-0x40,	\
+	[VSTART] = 'Q'-0x40,	\
+	[VSTOP] = 'S'-0x40,	\
+	[VSUSP] = 'Z'-0x40,	\
+	[VREPRINT] = 'R'-0x40,	\
+	[VDISCARD] = 'O'-0x40,	\
+	[VWERASE] = 'W'-0x40,	\
+	[VLNEXT] = 'V'-0x40,	\
+	[VMIN] = 1 }
 #endif
 
 int user_termio_to_kernel_termios(struct ktermios *, struct termio __user *);
-- 
2.30.2