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Revision e09e200e07222467ef82367bff7cc6f44ad00397 authored by Andy Shevchenko on 30 September 2020, 14:20:12 UTC, committed by Linus Walleij on 01 October 2020, 08:00:17 UTC 
gpio: pca953x: Use bitmap API over implicit GCC extension
 
In IRQ handler we have to clear bitmap before use. Currently
the GCC extension has been used for that. For sake of the consistency
switch to bitmap API. As expected bloat-o-meter shows no difference
in the object size.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Link: https://lore.kernel.org/r/20200930142013.59247-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
1 parent 17479aa
Raw File
acl.h 
/* SPDX-License-Identifier: GPL-2.0 */
/*
  File: fs/ext2/acl.h

  (C) 2001 Andreas Gruenbacher, <a.gruenbacher@computer.org>
*/

#include <linux/posix_acl_xattr.h>

#define EXT2_ACL_VERSION	0x0001

typedef struct {
	__le16		e_tag;
	__le16		e_perm;
	__le32		e_id;
} ext2_acl_entry;

typedef struct {
	__le16		e_tag;
	__le16		e_perm;
} ext2_acl_entry_short;

typedef struct {
	__le32		a_version;
} ext2_acl_header;

static inline size_t ext2_acl_size(int count)
{
	if (count <= 4) {
		return sizeof(ext2_acl_header) +
		       count * sizeof(ext2_acl_entry_short);
	} else {
		return sizeof(ext2_acl_header) +
		       4 * sizeof(ext2_acl_entry_short) +
		       (count - 4) * sizeof(ext2_acl_entry);
	}
}

static inline int ext2_acl_count(size_t size)
{
	ssize_t s;
	size -= sizeof(ext2_acl_header);
	s = size - 4 * sizeof(ext2_acl_entry_short);
	if (s < 0) {
		if (size % sizeof(ext2_acl_entry_short))
			return -1;
		return size / sizeof(ext2_acl_entry_short);
	} else {
		if (s % sizeof(ext2_acl_entry))
			return -1;
		return s / sizeof(ext2_acl_entry) + 4;
	}
}

#ifdef CONFIG_EXT2_FS_POSIX_ACL

/* acl.c */
extern struct posix_acl *ext2_get_acl(struct inode *inode, int type);
extern int ext2_set_acl(struct inode *inode, struct posix_acl *acl, int type);
extern int ext2_init_acl (struct inode *, struct inode *);

#else
#include <linux/sched.h>
#define ext2_get_acl	NULL
#define ext2_set_acl	NULL

static inline int ext2_init_acl (struct inode *inode, struct inode *dir)
{
	return 0;
}
#endif
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