[PATCH 04/36] tty/vt: consolemap: decrypt inverse_translate()

Jiri Slaby
2022-06-07T10:51:25Z

Fix invalid indentation and demystify the code by removing superfluous
"else"s. The "else"s are unneeded as they always follow an "if"-true
branch containing a "return". The code is now way more readable.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
drivers/tty/vt/consolemap.c | 31 ++++++++++++++++---------------
1 file changed, 16 insertions(+), 15 deletions(-)

diff --git a/drivers/tty/vt/consolemap.c b/drivers/tty/vt/consolemap.c
index 15aa10ff87ad..fb61158f4dc6 100644
--- a/drivers/tty/vt/consolemap.c
+++ b/drivers/tty/vt/consolemap.c
@@ -285,25 +285,26 @@ u16 inverse_translate(const struct vc_data *conp, int glyph, int use_unicode)
{
struct uni_pagedict *p;
int m;
+
if (glyph < 0 || glyph >= MAX_GLYPH)
return 0;
- else {
- p = *conp->vc_uni_pagedir_loc;
- if (!p)
+
+ p = *conp->vc_uni_pagedir_loc;
+ if (!p)
+ return glyph;
+
+ if (use_unicode) {
+ if (!p->inverse_trans_unicode)
return glyph;
- else if (use_unicode) {
- if (!p->inverse_trans_unicode)
- return glyph;
- else
- return p->inverse_trans_unicode[glyph];
- } else {
- m = inv_translate[conp->vc_num];
- if (!p->inverse_translations[m])
- return glyph;
- else
- return p->inverse_translations[m][glyph];
- }
+
+ return p->inverse_trans_unicode[glyph];
}
+
+ m = inv_translate[conp->vc_num];
+ if (!p->inverse_translations[m])
+ return glyph;
+
+ return p->inverse_translations[m][glyph];
}
EXPORT_SYMBOL_GPL(inverse_translate);

--
2.36.1