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kdb: Merge identical case statements in kdb_read()

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The code that handles case 14 (down) and case 16 (up) has been copy and
pasted despite being byte-for-byte identical. Combine them.

Cc: stable@vger.kernel.org # Not a bug fix but it is needed for later bug fixes
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Justin Stitt <justinstitt@google.com>
Link: https://lore.kernel.org/r/20240424-kgdb_read_refactor-v3-4-f236dbe9828d@linaro.org
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
This commit is contained in:
Daniel Thompson 2024-04-24 15:03:37 +01:00
parent db2f9c7dc2
commit 6244917f37
1 changed files with 1 additions and 9 deletions
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10
kernel/debug/kdb/kdb_io.c
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@ -317,6 +317,7 @@ static char *kdb_read(char *buffer, size_t bufsize)
}
break;
case 14: /* Down */
case 16: /* Up */
memset(tmpbuffer, ' ',
strlen(kdb_prompt_str) + (lastchar-buffer));
*(tmpbuffer+strlen(kdb_prompt_str) +
@ -331,15 +332,6 @@ static char *kdb_read(char *buffer, size_t bufsize)
++cp;
}
break;
case 16: /* Up */
memset(tmpbuffer, ' ',
strlen(kdb_prompt_str) + (lastchar-buffer));
*(tmpbuffer+strlen(kdb_prompt_str) +
(lastchar-buffer)) = '\0';
kdb_printf("\r%s\r", tmpbuffer);
*lastchar = (char)key;
*(lastchar+1) = '\0';
return lastchar;
case 9: /* Tab */
if (tab < 2)
++tab;