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authorRussell King <rmk+kernel@armlinux.org.uk>2017-04-10 16:28:31 +0100
committerDavid S. Miller <davem@davemloft.net>2017-04-13 10:59:12 -0400
commit96cb4342382290c935d933a08feb57d6d0183071 (patch)
tree6afd9388b916eddcb5f0fb03456116a47c91bb41 /include/uapi/linux/errqueue.h
parentdt-bindings: allow up to three clocks for orion-mdio (diff)
net: mvmdio: allow up to three clocks to be specified for orion-mdio
Allow up to three clocks to be specified and enabled for the orion-mdio interface, which are required for this interface to be accessible on Armada 8k platforms. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi/linux/errqueue.h')
0 files changed, 0 insertions, 0 deletions
Copyright © 1996 – 2026 Jason A. Donenfeld. All Rights Reverse Engineered.
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// SPDX-License-Identifier: GPL-2.0
/*
 * Provide kernel headers useful to build tracing programs
 * such as for running eBPF tracing tools.
 *
 * (Borrowed code from kernel/configs.c)
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/kobject.h>
#include <linux/init.h>

/*
 * Define kernel_headers_data and kernel_headers_data_end, within which the
 * compressed kernel headers are stored. The file is first compressed with xz.
 */

asm (
"	.pushsection .rodata, \"a\"		\n"
"	.global kernel_headers_data		\n"
"kernel_headers_data:				\n"
"	.incbin \"kernel/kheaders_data.tar.xz\"	\n"
"	.global kernel_headers_data_end		\n"
"kernel_headers_data_end:			\n"
"	.popsection				\n"
);

extern char kernel_headers_data;
extern char kernel_headers_data_end;

static ssize_t
ikheaders_read(struct file *file,  struct kobject *kobj,
	       struct bin_attribute *bin_attr,
	       char *buf, loff_t off, size_t len)
{
	memcpy(buf, &kernel_headers_data + off, len);
	return len;
}

static struct bin_attribute kheaders_attr __ro_after_init = {
	.attr = {
		.name = "kheaders.tar.xz",
		.mode = 0444,
	},
	.read = &ikheaders_read,
};

static int __init ikheaders_init(void)
{
	kheaders_attr.size = (&kernel_headers_data_end -
			      &kernel_headers_data);
	return sysfs_create_bin_file(kernel_kobj, &kheaders_attr);
}

static void __exit ikheaders_cleanup(void)
{
	sysfs_remove_bin_file(kernel_kobj, &kheaders_attr);
}

module_init(ikheaders_init);
module_exit(ikheaders_cleanup);

MODULE_LICENSE("GPL v2");
MODULE_AUTHOR("Joel Fernandes");
MODULE_DESCRIPTION("Echo the kernel header artifacts used to build the kernel");