From 6cf25e17064cb213ef8c3a9c84ab787dd2852f2a Mon Sep 17 00:00:00 2001
From: Michal Marek <mmarek@suse.cz>
Date: Wed, 5 Mar 2014 15:02:44 +0100
Subject: [PATCH 4/6] modprobe: Implement --allow-unsupported-modules

References: fate#316971
Patch-mainline: never
---
 Makefile.am                   |    4 +++-
 libkmod/libkmod-unsupported.c |    9 +++++++++
 libkmod/libkmod-unsupported.h |    8 ++++++++
 tools/modprobe.c              |    8 +++++++-
 4 files changed, 27 insertions(+), 2 deletions(-)
 create mode 100644 libkmod/libkmod-unsupported.c
 create mode 100644 libkmod/libkmod-unsupported.h

diff -u kmod-28.orig/Makefile.am kmod-28/Makefile.am
--- kmod-28.orig/Makefile.am	2021-01-07 19:29:12.972438665 +0100
+++ kmod-28/Makefile.am	2021-01-28 12:59:16.613421834 +0100
@@ -108,7 +108,9 @@
 	${libzstd_LIBS} ${liblzma_LIBS} ${zlib_LIBS} ${libcrypto_LIBS}
 
 noinst_LTLIBRARIES += libkmod/libkmod-internal.la
-libkmod_libkmod_internal_la_SOURCES = $(libkmod_libkmod_la_SOURCES)
+libkmod_libkmod_internal_la_SOURCES = $(libkmod_libkmod_la_SOURCES) \
+				      libkmod/libkmod-unsupported.c \
+				      libkmod/libkmod-unsupported.h
 libkmod_libkmod_internal_la_LDFLAGS = $(AM_LDFLAGS) \
 	-Wl,--version-script=$(top_srcdir)/libkmod/libkmod.sym
 libkmod_libkmod_internal_la_DEPENDENCIES  = $(libkmod_libkmod_la_DEPENDENCIES)
Index: kmod-27/libkmod/libkmod-unsupported.c
===================================================================
--- /dev/null
+++ kmod-27/libkmod/libkmod-unsupported.c
@@ -0,0 +1,9 @@
+#include "libkmod-internal.h"
+#include "libkmod-unsupported.h"
+
+void kmod_internal_allow_unsupported(struct kmod_ctx *ctx)
+{
+	struct kmod_config *config = (struct kmod_config *)kmod_get_config(ctx);
+
+	config->block_unsupported = 0;
+}
Index: kmod-27/libkmod/libkmod-unsupported.h
===================================================================
--- /dev/null
+++ kmod-27/libkmod/libkmod-unsupported.h
@@ -0,0 +1,8 @@
+#pragma once
+
+/*
+ * This function implements the --allow-unsupported-modules modprobe
+ * option. It is not part of the kmod API and not exported by the shared
+ * library
+ */
+void kmod_internal_allow_unsupported(struct kmod_ctx *ctx);
Index: kmod-27/tools/modprobe.c
===================================================================
--- kmod-27.orig/tools/modprobe.c
+++ kmod-27/tools/modprobe.c
@@ -38,6 +38,8 @@
 
 #include "kmod.h"
 
+#include "libkmod/libkmod-unsupported.h"
+
 static int log_priority = LOG_CRIT;
 static int use_syslog = 0;
 #define LOG(...) log_printf(log_priority, __VA_ARGS__)
@@ -761,6 +763,7 @@ static int do_modprobe(int argc, char **
 	const char *dirname = NULL;
 	const char *root = NULL;
 	const char *kversion = NULL;
+	int allow_unsupported = 0;
 	int use_all = 0;
 	int do_remove = 0;
 	int do_show_config = 0;
@@ -852,7 +855,7 @@ static int do_modprobe(int argc, char **
 			kversion = optarg;
 			break;
 		case 128:
-			/* --allow-unsupported-modules does nothing for now */
+			allow_unsupported = 1;
 			break;
 		case 's':
 			env_modprobe_options_append("-s");
@@ -925,6 +928,9 @@ static int do_modprobe(int argc, char **
 
 	log_setup_kmod_log(ctx, verbose);
 
+	if (allow_unsupported)
+		kmod_internal_allow_unsupported(ctx);
+
 	kmod_load_resources(ctx);
 
 	if (do_show_config)