Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
btf: Switch vmlinux BTF attribute to sysfs_bin_attr_simple_read()
The generic function from the sysfs core can replace the custom one.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/r/20241228-sysfs-const-bin_attr-simple-v2-2-7c6f3f1767a3@weissschuh.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
authored by
Thomas Weißschuh
and committed by
Greg Kroah-Hartman
42369b9a
3675a926
+2
-10
+2
-10
kernel/bpf/sysfs_btf.c
+2
-10
kernel/bpf/sysfs_btf.c
···
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extern char __start_BTF[];
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extern char __stop_BTF[];
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-
static ssize_t
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btf_vmlinux_read(struct file *file, struct kobject *kobj,
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struct bin_attribute *bin_attr,
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char *buf, loff_t off, size_t len)
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{
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memcpy(buf, __start_BTF + off, len);
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return len;
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}
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-
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static struct bin_attribute bin_attr_btf_vmlinux __ro_after_init = {
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.attr = { .name = "vmlinux", .mode = 0444, },
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.read = btf_vmlinux_read,
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.read_new = sysfs_bin_attr_simple_read,
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};
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struct kobject *btf_kobj;
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static int __init btf_vmlinux_init(void)
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{
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bin_attr_btf_vmlinux.private = __start_BTF;
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bin_attr_btf_vmlinux.size = __stop_BTF - __start_BTF;
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if (bin_attr_btf_vmlinux.size == 0)