Release 4.15 include/linux/adfs_fs.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ADFS_FS_H

#define _ADFS_FS_H

#include <uapi/linux/adfs_fs.h>

/*
 * Calculate the boot block checksum on an ADFS drive.  Note that this will
 * appear to be correct if the sector contains all zeros, so also check that
 * the disk size is non-zero!!!
 */


static inline int adfs_checkbblk(unsigned char *ptr)
{
	unsigned int result = 0;
	unsigned char *p = ptr + 511;

	do {
	        result = (result & 0xff) + (result >> 8);
        	result = result + *--p;
	} while (p != ptr);

	return (result & 0xff) != ptr[511];
}
Contributors
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CommitProp
Linus Torvalds (pre-git)
71
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3
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Total
71
100.00%
3
100.00%

#endif
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
82
97.62%
4
66.67%
David Howells
1
1.19%
1
16.67%
Greg Kroah-Hartman
1
1.19%
1
16.67%
Total
84
100.00%
6
100.00%
Directory: include/linux

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