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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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a6c6193a36
We should be using resource_size_t and unsigned types correctly, otherwise we sign extend the flags on a 64bit box, which is not what we want. Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
74 lines
1.7 KiB
C
74 lines
1.7 KiB
C
/*
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* rsrc_mgr.c -- Resource management routines and/or wrappers
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* The initial developer of the original code is David A. Hinds
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* <dahinds@users.sourceforge.net>. Portions created by David A. Hinds
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* are Copyright (C) 1999 David A. Hinds. All Rights Reserved.
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*
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* (C) 1999 David A. Hinds
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*/
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <pcmcia/ss.h>
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#include <pcmcia/cistpl.h>
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#include "cs_internal.h"
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int static_init(struct pcmcia_socket *s)
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{
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/* the good thing about SS_CAP_STATIC_MAP sockets is
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* that they don't need a resource database */
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s->resource_setup_done = 1;
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return 0;
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}
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struct resource *pcmcia_make_resource(resource_size_t start,
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resource_size_t end,
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unsigned long flags, const char *name)
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{
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struct resource *res = kzalloc(sizeof(*res), GFP_KERNEL);
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if (res) {
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res->name = name;
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res->start = start;
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res->end = start + end - 1;
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res->flags = flags;
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}
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return res;
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}
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static int static_find_io(struct pcmcia_socket *s, unsigned int attr,
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unsigned int *base, unsigned int num,
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unsigned int align, struct resource **parent)
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{
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if (!s->io_offset)
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return -EINVAL;
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*base = s->io_offset | (*base & 0x0fff);
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*parent = NULL;
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return 0;
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}
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struct pccard_resource_ops pccard_static_ops = {
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.validate_mem = NULL,
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.find_io = static_find_io,
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.find_mem = NULL,
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.init = static_init,
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.exit = NULL,
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};
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EXPORT_SYMBOL(pccard_static_ops);
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MODULE_AUTHOR("David A. Hinds, Dominik Brodowski");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("rsrc_nonstatic");
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