From 66bc1a173328dec3e37c203a999f2a2914c96b56 Mon Sep 17 00:00:00 2001 From: Lukas Wunner Date: Sat, 6 Apr 2024 15:52:02 +0200 Subject: treewide: Use sysfs_bin_attr_simple_read() helper Deduplicate ->read() callbacks of bin_attributes which are backed by a simple buffer in memory: Use the newly introduced sysfs_bin_attr_simple_read() helper instead, either by referencing it directly or by declaring such bin_attributes with BIN_ATTR_SIMPLE_RO() or BIN_ATTR_SIMPLE_ADMIN_RO(). Aside from a reduction of LoC, this shaves off a few bytes from vmlinux (304 bytes on an x86_64 allyesconfig). No functional change intended. Signed-off-by: Lukas Wunner Acked-by: Zhi Wang Acked-by: Michael Ellerman Acked-by: Rafael J. Wysocki Acked-by: Ard Biesheuvel Link: https://lore.kernel.org/r/92ee0a0e83a5a3f3474845db6c8575297698933a.1712410202.git.lukas@wunner.de Signed-off-by: Greg Kroah-Hartman --- init/initramfs.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) (limited to 'init') diff --git a/init/initramfs.c b/init/initramfs.c index da79760b8be3..5193fae330c3 100644 --- a/init/initramfs.c +++ b/init/initramfs.c @@ -575,15 +575,7 @@ extern unsigned long __initramfs_size; #include #include -static ssize_t raw_read(struct file *file, struct kobject *kobj, - struct bin_attribute *attr, char *buf, - loff_t pos, size_t count) -{ - memcpy(buf, attr->private + pos, count); - return count; -} - -static BIN_ATTR(initrd, 0440, raw_read, NULL, 0); +static BIN_ATTR(initrd, 0440, sysfs_bin_attr_simple_read, NULL, 0); void __init reserve_initrd_mem(void) { -- cgit v1.2.3