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Remove broken drm2 vm_mmap stub. Can't possibly have ever worked.

This commit is contained in:
riastradh 2015-04-17 15:02:50 +00:00
parent e35af46bce
commit 48db6abd52
1 changed files with 7 additions and 52 deletions
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59
sys/external/bsd/drm2/include/linux/mm.h vendored
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@ -1,4 +1,4 @@
/* $NetBSD: mm.h,v 1.4 2014/12/14 23:48:58 chs Exp $ */
/* $NetBSD: mm.h,v 1.5 2015/04/17 15:02:50 riastradh Exp $ */
/*-
* Copyright (c) 2013 The NetBSD Foundation, Inc.
@ -32,18 +32,12 @@
#ifndef _LINUX_MM_H_
#define _LINUX_MM_H_
#include <sys/kauth.h>
#include <sys/file.h>
#include <sys/mman.h>
#include <sys/proc.h>
#include <sys/vnode.h>
#include <miscfs/specfs/specdev.h>
#include <uvm/uvm_extern.h>
#include <asm/page.h>
struct file;
/* XXX Ugh bletch! Whattakludge! Linux's sense is reversed... */
#undef PAGE_MASK
#define PAGE_MASK (~(PAGE_SIZE-1))
@ -67,52 +61,13 @@ si_meminfo(struct sysinfo *si)
/* XXX Fill in more as needed. */
}
/*
* ###################################################################
* ############### XXX THIS NEEDS SERIOUS SCRUTINY XXX ###############
* ###################################################################
*/
/*
* XXX unsigned long is a loser but will probably work accidentally.
* XXX struct file might not map quite right between Linux and NetBSD.
* XXX This is large enough it should take its own file.
*/
static inline unsigned long
vm_mmap(struct file *file, unsigned long base, unsigned long size,
unsigned long prot, unsigned long flags, unsigned long token)
vm_mmap(struct file *file __unused, unsigned long base __unused,
unsigned long size __unused, unsigned long prot __unused,
unsigned long flags __unused, unsigned long token __unused)
{
struct vnode *vp;
void *addr;
int error;
/*
* Cargo-culted from sys_mmap. Various conditions kasserted
* rather than checked for expedience and safey.
*/
KASSERT(base == 0);
KASSERT(prot == (PROT_READ | PROT_WRITE));
KASSERT(flags == MAP_SHARED);
KASSERT(file->f_type == DTYPE_VNODE);
vp = file->f_data;
KASSERT(vp->v_type == VCHR);
KASSERT((file->f_flag & (FREAD | FWRITE)) == (FREAD | FWRITE));
/* XXX pax_mprotect? pax_aslr? */
addr = NULL;
error = uvm_mmap_dev(curproc, &addr, size, vp->v_rdev, (off_t)base);
if (error)
goto out;
KASSERT((uintptr_t)addr <= -1024UL); /* XXX Kludgerosity! */
out: /* XXX errno NetBSD->Linux (kludgerific) */
return (error? (-error) : (unsigned long)addr);
return -ENODEV;
}
#endif /* _LINUX_MM_H_ */