linux-kernel - [PATCH 20/38] vc: simplify condition in vc_con_write

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Date:   Mon, 15 Jun 2020 09:48:52 +0200
From:   Jiri Slaby <jslaby@...e.cz>
To:     gregkh@...uxfoundation.org
Cc:     linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 20/38] vc: simplify condition in vc_con_write_normal

Convert (!(A && !B) || C) into (!A || B || C) to improve readability.

No functional changes, as was just proven by objdump.

Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 drivers/tty/vt/vt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 893f72dc812c..d3cd256ba0fa 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -2747,7 +2747,7 @@ static int vc_con_write_normal(struct vc_data *vc, int tc, int c,
 			return -1; /* nothing to display */
 
 		/* Glyph not found */
-		if ((!(vc->vc_utf && !vc->vc_disp_ctrl) || c < 128) &&
+		if ((!vc->vc_utf || vc->vc_disp_ctrl || c < 128) &&
 				!(c & ~charmask)) {
 			/*
 			 * In legacy mode use the glyph we get by a 1:1
-- 
2.27.0