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| author | Lukas Wunner <lukas@wunner.de> | 2024-04-06 15:52:02 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-04-11 16:02:25 +0200 |
| commit | 66bc1a173328dec3e37c203a999f2a2914c96b56 (patch) | |
| tree | 95508f1643d6969572c60178869810b3bca17a2c /init/initramfs.c | |
| parent | sysfs: Add sysfs_bin_attr_simple_read() helper (diff) | |
| download | linux-66bc1a173328dec3e37c203a999f2a2914c96b56.tar.xz linux-66bc1a173328dec3e37c203a999f2a2914c96b56.zip | |
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 <lukas@wunner.de>
Acked-by: Zhi Wang <zhiwang@kernel.org>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/92ee0a0e83a5a3f3474845db6c8575297698933a.1712410202.git.lukas@wunner.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'init/initramfs.c')
| -rw-r--r-- | init/initramfs.c | 10 |
1 files changed, 1 insertions, 9 deletions
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 <linux/initrd.h> #include <linux/kexec.h> -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) { |