linux-kernel - [PATCH] module: fix building with sysfs disabled

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Message-ID: <YgwXDqfL5ecTF9JH@google.com>
Date:   Tue, 15 Feb 2022 13:11:42 -0800
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     Luis Chamberlain <mcgrof@...nel.org>
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH] module: fix building with sysfs disabled

Sysfs support might be disabled so we need to guard the code that
instantiates "compression" attribute with an #ifdef.

Fixes: b1ae6dc41eaa ("module: add in-kernel support for decompressing")
Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
---
 kernel/module_decompress.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/module_decompress.c b/kernel/module_decompress.c
index b01c69c2ff99..ffef98a20320 100644
--- a/kernel/module_decompress.c
+++ b/kernel/module_decompress.c
@@ -250,6 +250,7 @@ void module_decompress_cleanup(struct load_info *info)
 	info->max_pages = info->used_pages = 0;
 }
 
+#ifdef CONFIG_SYSFS
 static ssize_t compression_show(struct kobject *kobj,
 				struct kobj_attribute *attr, char *buf)
 {
@@ -269,3 +270,4 @@ static int __init module_decompress_sysfs_init(void)
 	return 0;
 }
 late_initcall(module_decompress_sysfs_init);
+#endif
-- 
2.35.1.265.g69c8d7142f-goog


-- 
Dmitry