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From fdf1fdebaa00f81de18c227f32f8074c8b352d50 Mon Sep 17 00:00:00 2001 From: Arjan van de Ven <arjan@linux.intel.com> Date: Sun, 30 Oct 2011 19:06:07 -0700 Subject: [PATCH] drm: Make the per-driver file_operations struct const The DRM layer keeps a copy of struct file_operations inside its big driver struct... which prevents it from being consistent and static. For consistency (and the general security objective of having such things static), it's desirable to get this fixed. This patch splits out the file_operations field to its own struct, which is then "static const", and just stick a pointer to this into the driver struct, making it more consistent with how the rest of the kernel does this. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
/* savage_drv.c -- Savage driver for Linux
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*
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* Copyright 2004 Felix Kuehling
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sub license,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NON-INFRINGEMENT. IN NO EVENT SHALL FELIX KUEHLING BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <linux/module.h>
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#include "drmP.h"
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#include "savage_drm.h"
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#include "savage_drv.h"
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#include "drm_pciids.h"
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static struct pci_device_id pciidlist[] = {
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savage_PCI_IDS
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};
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static const struct file_operations savage_driver_fops = {
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.owner = THIS_MODULE,
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.open = drm_open,
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.release = drm_release,
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.unlocked_ioctl = drm_ioctl,
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.mmap = drm_mmap,
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.poll = drm_poll,
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.fasync = drm_fasync,
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.llseek = noop_llseek,
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};
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static struct drm_driver driver = {
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.driver_features =
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DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_HAVE_DMA | DRIVER_PCI_DMA,
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.dev_priv_size = sizeof(drm_savage_buf_priv_t),
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.load = savage_driver_load,
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.firstopen = savage_driver_firstopen,
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.lastclose = savage_driver_lastclose,
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.unload = savage_driver_unload,
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.reclaim_buffers = savage_reclaim_buffers,
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.ioctls = savage_ioctls,
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.dma_ioctl = savage_bci_buffers,
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.fops = &savage_driver_fops,
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.name = DRIVER_NAME,
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.desc = DRIVER_DESC,
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.date = DRIVER_DATE,
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.major = DRIVER_MAJOR,
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.minor = DRIVER_MINOR,
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.patchlevel = DRIVER_PATCHLEVEL,
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};
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static struct pci_driver savage_pci_driver = {
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.name = DRIVER_NAME,
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.id_table = pciidlist,
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};
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static int __init savage_init(void)
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{
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driver.num_ioctls = savage_max_ioctl;
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return drm_pci_init(&driver, &savage_pci_driver);
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}
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static void __exit savage_exit(void)
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{
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drm_pci_exit(&driver, &savage_pci_driver);
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}
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module_init(savage_init);
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module_exit(savage_exit);
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MODULE_AUTHOR(DRIVER_AUTHOR);
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MODULE_DESCRIPTION(DRIVER_DESC);
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MODULE_LICENSE("GPL and additional rights");
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