From 77d6354bd422c8a451ef7d2235322dbf33e7427b Mon Sep 17 00:00:00 2001 From: David Disseldorp Date: Tue, 6 Sep 2022 10:03:18 +0200 Subject: [PATCH] module/decompress: generate sysfs string at compile time compression_show() before (with noinline): 0xffffffff810b5ff0 <+0>: mov %rdx,%rdi 0xffffffff810b5ff3 <+3>: mov $0xffffffff81b55629,%rsi 0xffffffff810b5ffa <+10>: mov $0xffffffff81b0cde2,%rdx 0xffffffff810b6001 <+17>: call 0xffffffff811b8fd0 0xffffffff810b6006 <+22>: cltq 0xffffffff810b6008 <+24>: ret After: 0xffffffff810b5ff0 <+0>: mov $0xffffffff81b0cde2,%rsi 0xffffffff810b5ff7 <+7>: mov %rdx,%rdi 0xffffffff810b5ffa <+10>: call 0xffffffff811b8fd0 0xffffffff810b5fff <+15>: cltq 0xffffffff810b6001 <+17>: ret Signed-off-by: David Disseldorp Reviewed-by: Aaron Tomlin Reviewed-by: Dmitry Torokhov Signed-off-by: Luis Chamberlain --- kernel/module/decompress.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/module/decompress.c b/kernel/module/decompress.c index 4d0bcb3..c033572 100644 --- a/kernel/module/decompress.c +++ b/kernel/module/decompress.c @@ -256,7 +256,7 @@ void module_decompress_cleanup(struct load_info *info) static ssize_t compression_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf) { - return sysfs_emit(buf, "%s\n", __stringify(MODULE_COMPRESSION)); + return sysfs_emit(buf, __stringify(MODULE_COMPRESSION) "\n"); } static struct kobj_attribute module_compression_attr = __ATTR_RO(compression); -- 2.7.4