cmp_http.c: extend comment in keep_alive()

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Hugo Landau <hlandau@openssl.org>
Reviewed-by: David von Oheimb <david.von.oheimb@siemens.com>
(Merged from https://github.com/openssl/openssl/pull/18702)

diff --git a/crypto/cmp/cmp_http.c b/crypto/cmp/cmp_http.c
index c7d24c17957381781b77924d43c966e2bb20aa37..22144764a48a47d2ded6d155ba292fa99a1188ae 100644 (file)
--- a/crypto/cmp/cmp_http.c
+++ b/crypto/cmp/cmp_http.c
@@ -29,7 +29,10 @@
 static int keep_alive(int keep_alive, int body_type)
 {
     if (keep_alive != 0
-        /* Ask for persistent connection only if may need more round trips */
+        /*
+         * Ask for persistent connection only if may need more round trips.
+         * Do so even with disableConfirm because polling might be needed.
+         */
             && body_type != OSSL_CMP_PKIBODY_IR
             && body_type != OSSL_CMP_PKIBODY_CR
             && body_type != OSSL_CMP_PKIBODY_P10CR