On Thu, Dec 5, 2024 at 9:35 AM Thomas Weißschuh [off-list ref] wrote:
The generic function from the sysfs core can replace the custom one.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
---
kernel/bpf/btf.c | 15 ++-------------
1 file changed, 2 insertions(+), 13 deletions(-)
LGTM
Acked-by: Andrii Nakryiko <andrii@kernel.org>
quoted hunk ↗ jump to hunk
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index e7a59e6462a9331d0acb17a88a4ebf641509c050..69caa86ae6085dce17e95107c4497d2d8cf81544 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -7870,17 +7870,6 @@ struct btf_module {
static LIST_HEAD(btf_modules);
static DEFINE_MUTEX(btf_module_mutex);
-static ssize_t
-btf_module_read(struct file *file, struct kobject *kobj,
- struct bin_attribute *bin_attr,
- char *buf, loff_t off, size_t len)
-{
- const struct btf *btf = bin_attr->private;
-
- memcpy(buf, btf->data + off, len);
- return len;
-}
-
static void purge_cand_cache(struct btf *btf);
static int btf_module_notify(struct notifier_block *nb, unsigned long op,@@ -7941,8 +7930,8 @@ static int btf_module_notify(struct notifier_block *nb, unsigned long op,
attr->attr.name = btf->name;
attr->attr.mode = 0444;
attr->size = btf->data_size;
- attr->private = btf;
- attr->read = btf_module_read;
+ attr->private = btf->data;
+ attr->read_new = sysfs_bin_attr_simple_read;
err = sysfs_create_bin_file(btf_kobj, attr);
if (err) {
--2.47.1