forked from mirrors/linux
c5ef1c42c5
Many struct inode_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
25 lines
545 B
C
25 lines
545 B
C
#ifndef __LINUX_PHONEDEV_H
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#define __LINUX_PHONEDEV_H
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#include <linux/types.h>
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#ifdef __KERNEL__
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#include <linux/poll.h>
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struct phone_device {
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struct phone_device *next;
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const struct file_operations *f_op;
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int (*open) (struct phone_device *, struct file *);
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int board; /* Device private index */
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int minor;
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};
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extern int phonedev_init(void);
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#define PHONE_MAJOR 100
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extern int phone_register_device(struct phone_device *, int unit);
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#define PHONE_UNIT_ANY -1
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extern void phone_unregister_device(struct phone_device *);
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#endif
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#endif
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