linux-kernel - [PATCH 21/38] vt: simplify vc_attr handling in vc_con_write

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20200615074910.19267-21-jslaby@suse.cz>
Date:   Mon, 15 Jun 2020 09:48:53 +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 21/38] vt: simplify vc_attr handling in vc_con_write_normal

Invert the attribute on the only place, without the need of checking
'inverse'.

Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 drivers/tty/vt/vt.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index d3cd256ba0fa..72ae8ede1ac9 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -2730,7 +2730,7 @@ static int vc_con_write_normal(struct vc_data *vc, int tc, int c,
 		struct vc_draw_region *draw)
 {
 	int next_c;
-	unsigned char vc_attr;
+	unsigned char vc_attr = vc->vc_attr;
 	u16 himask = vc->vc_hi_font_mask, charmask = himask ? 0x1ff : 0xff;
 	u8 width = 1;
 	bool inverse = false;
@@ -2769,17 +2769,13 @@ static int vc_con_write_normal(struct vc_data *vc, int tc, int c,
 				tc = conv_uni_to_pc(vc, '?');
 				if (tc < 0)
 					tc = '?';
+
+				vc_attr = vc_invert_attr(vc);
+				con_flush(vc, draw);
 			}
 		}
 	}
 
-	if (!inverse) {
-		vc_attr = vc->vc_attr;
-	} else {
-		vc_attr = vc_invert_attr(vc);
-		con_flush(vc, draw);
-	}
-
 	next_c = c;
 	while (1) {
 		if (vc->vc_need_wrap || vc->vc_decim)
-- 
2.27.0