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https://github.com/torvalds/linux
27 March 2024, 02:37:15 UTC
Revision 5e62d124f75aae0e96fd8a588ad31659a2468710 authored by Jakub Kicinski on 14 January 2021, 01:49:08 UTC, committed by Jakub Kicinski on 14 January 2021, 18:53:48 UTC 
MAINTAINERS: vrf: move Shrijeet to CREDITS
 
Shrijeet has moved on from VRF-related work.

Subsystem VRF
  Changes 30 / 120 (25%)
  Last activity: 2020-12-09
  David Ahern <dsahern@kernel.org>:
    Author 1b6687e31a2d 2020-07-23 00:00:00 1
    Tags 9125abe7b9cb 2020-12-09 00:00:00 4
  Shrijeet Mukherjee <shrijeet@gmail.com>:
  Top reviewers:
    [13]: dsahern@gmail.com
    [4]: dsa@cumulusnetworks.com
  INACTIVE MAINTAINER Shrijeet Mukherjee <shrijeet@gmail.com>

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
1 parent 09cd3f4
Raw File
Tip revision: 5e62d124f75aae0e96fd8a588ad31659a2468710 authored by Jakub Kicinski on 14 January 2021, 01:49:08 UTC
MAINTAINERS: vrf: move Shrijeet to CREDITS
Tip revision: 5e62d12
check_signature.c 
// SPDX-License-Identifier: GPL-2.0
#include <linux/io.h>
#include <linux/export.h>

/**
 *	check_signature		-	find BIOS signatures
 *	@io_addr: mmio address to check
 *	@signature:  signature block
 *	@length: length of signature
 *
 *	Perform a signature comparison with the mmio address io_addr. This
 *	address should have been obtained by ioremap.
 *	Returns 1 on a match.
 */

int check_signature(const volatile void __iomem *io_addr,
			const unsigned char *signature, int length)
{
	while (length--) {
		if (readb(io_addr) != *signature)
			return 0;
		io_addr++;
		signature++;
	}
	return 1;
}
EXPORT_SYMBOL(check_signature);
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