scripts/checkpatch: Avoid recommending legacy qemu_bh_new_guarded()

qemu_bh_new_guarded() is considered legacy since commit 9c86c97f12c
("async: Add an optional reentrancy guard to the BH API"); recommend
the new API: aio_bh_new_guarded().

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20250924163911.51479-1-philmd@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 40b6955c69863a304a97d76929df3152594b4c28..d3d75f3f139826fafeae1c314e961284ac18f448 100755 (executable)
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3198,9 +3198,9 @@ sub process {
                if ($line =~ /\bsignal\s*\(/ && !($line =~ /SIG_(?:IGN|DFL)/)) {
                        ERROR("use sigaction to establish signal handlers; signal is not portable\n" . $herecurr);
                }
-# recommend qemu_bh_new_guarded instead of qemu_bh_new
-        if ($realfile =~ /.*\/hw\/.*/ && $line =~ /\bqemu_bh_new\s*\(/) {
-                       ERROR("use qemu_bh_new_guarded() instead of qemu_bh_new() to avoid reentrancy problems\n" . $herecurr);
+# recommend aio_bh_new_guarded instead of legacy qemu_bh_new / qemu_bh_new_guarded
+        if ($realfile =~ /.*\/hw\/.*/ && $line =~ /\bqemu_bh_new(_guarded)?\s*\(/) {
+                       ERROR("use aio_bh_new_guarded() instead of qemu_bh_new*() to avoid reentrancy problems\n" . $herecurr);
                }
 # recommend aio_bh_new_guarded instead of aio_bh_new
         if ($realfile =~ /.*\/hw\/.*/ && $line =~ /\baio_bh_new\s*\(/) {