summaryrefslogtreecommitdiff
path: root/include/linux/sysfs.h
diff options
context:
space:
mode:
authorLukas Wunner <lukas@wunner.de>2024-05-23 13:00:00 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-06-04 15:56:45 +0200
commit44a45be57f85165761fdabf072f9a97aa026ff61 (patch)
tree103e44186a1dbf1e5a992b307a4546f411a9e556 /include/linux/sysfs.h
parent971187350602d03c4a27c0783ff412502b95720a (diff)
sysfs: Unbreak the build around sysfs_bin_attr_simple_read()
Günter reports build breakage for m68k "m5208evb_defconfig" plus CONFIG_BLK_DEV_INITRD=y caused by commit 66bc1a173328 ("treewide: Use sysfs_bin_attr_simple_read() helper"). The defconfig disables CONFIG_SYSFS, so sysfs_bin_attr_simple_read() is not compiled into the kernel. But init/initramfs.c references that function in the initializer of a struct bin_attribute. Add an empty static inline to avoid the build breakage. Fixes: 66bc1a173328 ("treewide: Use sysfs_bin_attr_simple_read() helper") Reported-by: Guenter Roeck <linux@roeck-us.net> Closes: https://lore.kernel.org/r/e12b0027-b199-4de7-b83d-668171447ccc@roeck-us.net Signed-off-by: Lukas Wunner <lukas@wunner.de> Tested-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Rafael J. Wysocki <rafael@kernel.org> Link: https://lore.kernel.org/r/05f4290439a58730738a15b0c99cd8576c4aa0d9.1716461752.git.lukas@wunner.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/sysfs.h')
-rw-r--r--include/linux/sysfs.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index a7d725fbf739..c4e64dc11206 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -750,6 +750,15 @@ static inline int sysfs_emit_at(char *buf, int at, const char *fmt, ...)
{
return 0;
}
+
+static inline ssize_t sysfs_bin_attr_simple_read(struct file *file,
+ struct kobject *kobj,
+ struct bin_attribute *attr,
+ char *buf, loff_t off,
+ size_t count)
+{
+ return 0;
+}
#endif /* CONFIG_SYSFS */
static inline int __must_check sysfs_create_file(struct kobject *kobj,