From 42369b9a1ecf777ab2f6075747ecfb825db4552b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Thomas=20Wei=C3=9Fschuh?= Date: Sat, 28 Dec 2024 09:43:42 +0100 Subject: [PATCH] btf: Switch vmlinux BTF attribute to sysfs_bin_attr_simple_read() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The generic function from the sysfs core can replace the custom one. Signed-off-by: Thomas Weißschuh Acked-by: Andrii Nakryiko Link: https://lore.kernel.org/r/20241228-sysfs-const-bin_attr-simple-v2-2-7c6f3f1767a3@weissschuh.net Signed-off-by: Greg Kroah-Hartman --- kernel/bpf/sysfs_btf.c | 12 ++---------- 1 file changed, 2 insertions(+), 10 deletions(-) diff --git a/kernel/bpf/sysfs_btf.c b/kernel/bpf/sysfs_btf.c index fedb54c94cdb..81d6cf90584a 100644 --- a/kernel/bpf/sysfs_btf.c +++ b/kernel/bpf/sysfs_btf.c @@ -12,24 +12,16 @@ extern char __start_BTF[]; extern char __stop_BTF[]; -static ssize_t -btf_vmlinux_read(struct file *file, struct kobject *kobj, - struct bin_attribute *bin_attr, - char *buf, loff_t off, size_t len) -{ - memcpy(buf, __start_BTF + off, len); - return len; -} - static struct bin_attribute bin_attr_btf_vmlinux __ro_after_init = { .attr = { .name = "vmlinux", .mode = 0444, }, - .read = btf_vmlinux_read, + .read_new = sysfs_bin_attr_simple_read, }; struct kobject *btf_kobj; static int __init btf_vmlinux_init(void) { + bin_attr_btf_vmlinux.private = __start_BTF; bin_attr_btf_vmlinux.size = __stop_BTF - __start_BTF; if (bin_attr_btf_vmlinux.size == 0)