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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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Linus Torvalds
bf4afc53b7
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
134 lines
3.1 KiB
C
134 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Common code to handle map devices which are simple ROM
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* (C) 2000 Red Hat.
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*/
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <asm/io.h>
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#include <asm/byteorder.h>
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#include <linux/errno.h>
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#include <linux/slab.h>
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#include <linux/init.h>
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#include <linux/of.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/map.h>
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static int maprom_read (struct mtd_info *, loff_t, size_t, size_t *, u_char *);
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static int maprom_write (struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
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static void maprom_nop (struct mtd_info *);
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static struct mtd_info *map_rom_probe(struct map_info *map);
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static int maprom_erase (struct mtd_info *mtd, struct erase_info *info);
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static int maprom_point (struct mtd_info *mtd, loff_t from, size_t len,
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size_t *retlen, void **virt, resource_size_t *phys);
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static int maprom_unpoint(struct mtd_info *mtd, loff_t from, size_t len);
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static struct mtd_chip_driver maprom_chipdrv = {
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.probe = map_rom_probe,
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.name = "map_rom",
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.module = THIS_MODULE
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};
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static unsigned int default_erasesize(struct map_info *map)
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{
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const __be32 *erase_size = NULL;
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erase_size = of_get_property(map->device_node, "erase-size", NULL);
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return !erase_size ? map->size : be32_to_cpu(*erase_size);
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}
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static struct mtd_info *map_rom_probe(struct map_info *map)
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{
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struct mtd_info *mtd;
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mtd = kzalloc_obj(*mtd);
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if (!mtd)
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return NULL;
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map->fldrv = &maprom_chipdrv;
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mtd->priv = map;
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mtd->name = map->name;
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mtd->type = MTD_ROM;
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mtd->size = map->size;
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mtd->_point = maprom_point;
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mtd->_unpoint = maprom_unpoint;
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mtd->_read = maprom_read;
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mtd->_write = maprom_write;
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mtd->_sync = maprom_nop;
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mtd->_erase = maprom_erase;
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mtd->flags = MTD_CAP_ROM;
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mtd->erasesize = default_erasesize(map);
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mtd->writesize = 1;
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mtd->writebufsize = 1;
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__module_get(THIS_MODULE);
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return mtd;
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}
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static int maprom_point(struct mtd_info *mtd, loff_t from, size_t len,
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size_t *retlen, void **virt, resource_size_t *phys)
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{
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struct map_info *map = mtd->priv;
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if (!map->virt)
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return -EINVAL;
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*virt = map->virt + from;
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if (phys)
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*phys = map->phys + from;
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*retlen = len;
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return 0;
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}
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static int maprom_unpoint(struct mtd_info *mtd, loff_t from, size_t len)
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{
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return 0;
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}
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static int maprom_read (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf)
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{
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struct map_info *map = mtd->priv;
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map_copy_from(map, buf, from, len);
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*retlen = len;
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return 0;
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}
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static void maprom_nop(struct mtd_info *mtd)
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{
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/* Nothing to see here */
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}
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static int maprom_write (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf)
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{
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return -EROFS;
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}
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static int maprom_erase (struct mtd_info *mtd, struct erase_info *info)
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{
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/* We do our best 8) */
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return -EROFS;
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}
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static int __init map_rom_init(void)
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{
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register_mtd_chip_driver(&maprom_chipdrv);
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return 0;
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}
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static void __exit map_rom_exit(void)
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{
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unregister_mtd_chip_driver(&maprom_chipdrv);
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}
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module_init(map_rom_init);
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module_exit(map_rom_exit);
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MODULE_LICENSE("GPL");
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MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
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MODULE_DESCRIPTION("MTD chip driver for ROM chips");
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