scripts/find-unused-docs: Fix massive false positives

BugLink: https://bugs.launchpad.net/bugs/1863588
commit 1630146db2111412e7524d05d812ff8f2c75977e upstream.

scripts/find-unused-docs.sh invokes scripts/kernel-doc to find out if a
source file contains kerneldoc or not.

However, as it passes the no longer supported "-text" option to
scripts/kernel-doc, the latter prints out its help text, causing all
files to be considered containing kerneldoc.

Get rid of these false positives by removing the no longer supported
"-text" option from the scripts/kernel-doc invocation.

Cc: stable@vger.kernel.org  # 4.16+
Fixes: b05142675310d2ac ("scripts: kernel-doc: get rid of unused output formats")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200127093107.26401-1-geert+renesas@glider.be
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>

diff --git a/scripts/find-unused-docs.sh b/scripts/find-unused-docs.sh
index 3f46f8977dc4dc8882cc9c89e8d80e4effd0bb4f..ee6a50e33aba805dfd1ea056adf24d80ebe8b283 100755 (executable)
--- a/scripts/find-unused-docs.sh
+++ b/scripts/find-unused-docs.sh
@@ -54,7 +54,7 @@ for file in `find $1 -name '*.c'`; do
        if [[ ${FILES_INCLUDED[$file]+_} ]]; then
        continue;
        fi
-       str=$(scripts/kernel-doc -text -export "$file" 2>/dev/null)
+       str=$(scripts/kernel-doc -export "$file" 2>/dev/null)
        if [[ -n "$str" ]]; then
        echo "$file"
        fi