[PATCH 2/2] drm: Used DRM_LEGACY for all legacy functions
Daniel Vetter
daniel at ffwll.ch
Thu Aug 4 08:20:02 UTC 2016
On Thu, Aug 04, 2016 at 08:37:49AM +0100, Frank Binns wrote:
> On 03/08/16 20:11, Daniel Vetter wrote:
> > Except for nouveau, only legacy drivers need this really. And nouveau
> > is already marked up with DRIVER_KMS_LEGACY_CONTEXT as the special
> > case.
> >
> > I've tried to be careful to leave everything related to modeset still
> > using the DRIVER_MODESET flag. Otherwise it's a direct replacement of
> > !DRIVER_MODESET with DRIVER_LEGACY checks. Also helps readability
> > since fewer negative checks overall.
> >
> > Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
>
> I don't think this goes far enough. For example, the documentation
> for the 'firstopen' callback says that it's called for legacy UMS drivers
> but it does a check based on DRIVER_MODESET. There are also some
> places in drm_pci.c that should be changed as well.
I switched the check for firstopen from DRIVER_MODESET to DRIVER_LEGACY.
And which hook in drm_pci.c should be converted in your opinion?
-Daniel
>
> Anyway, this is progress so:
> Reviewed-by: Frank Binns <frank.binns at imgtec.com>
>
> > ---
> > drivers/gpu/drm/drm_agpsupport.c | 6 ++----
> > drivers/gpu/drm/drm_auth.c | 2 +-
> > drivers/gpu/drm/drm_bufs.c | 22 +++++++++++-----------
> > drivers/gpu/drm/drm_context.c | 24 ++++++++++++------------
> > drivers/gpu/drm/drm_dma.c | 6 ++----
> > drivers/gpu/drm/drm_fops.c | 6 +++---
> > drivers/gpu/drm/drm_ioctl.c | 4 ++--
> > drivers/gpu/drm/drm_irq.c | 10 +++++-----
> > drivers/gpu/drm/drm_lock.c | 4 ++--
> > drivers/gpu/drm/drm_pci.c | 8 ++++----
> > drivers/gpu/drm/drm_scatter.c | 6 +++---
> > 11 files changed, 47 insertions(+), 51 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/drm_agpsupport.c b/drivers/gpu/drm/drm_agpsupport.c
> > index 605bd243fb36..d621c8a4cf00 100644
> > --- a/drivers/gpu/drm/drm_agpsupport.c
> > +++ b/drivers/gpu/drm/drm_agpsupport.c
> > @@ -430,9 +430,7 @@ struct drm_agp_head *drm_agp_init(struct drm_device *dev)
> > * intact so it can still be used. It is safe to call this if AGP is disabled or
> > * was already removed.
> > *
> > - * If DRIVER_MODESET is active, nothing is done to protect the modesetting
> > - * resources from getting destroyed. Drivers are responsible of cleaning them up
> > - * during device shutdown.
> > + * Cleanup is only done for drivers who have DRIVER_LEGACY set.
> > */
> > void drm_legacy_agp_clear(struct drm_device *dev)
> > {
> > @@ -440,7 +438,7 @@ void drm_legacy_agp_clear(struct drm_device *dev)
> > if (!dev->agp)
> > return;
> > - if (drm_core_check_feature(dev, DRIVER_MODESET))
> > + if (!drm_core_check_feature(dev, DRIVER_LEGACY))
> > return;
> > list_for_each_entry_safe(entry, tempe, &dev->agp->memory, head) {
> > diff --git a/drivers/gpu/drm/drm_auth.c b/drivers/gpu/drm/drm_auth.c
> > index 4153e8a193af..6b143514a566 100644
> > --- a/drivers/gpu/drm/drm_auth.c
> > +++ b/drivers/gpu/drm/drm_auth.c
> > @@ -251,7 +251,7 @@ void drm_master_release(struct drm_file *file_priv)
> > if (!drm_is_current_master(file_priv))
> > goto out;
> > - if (!drm_core_check_feature(dev, DRIVER_MODESET)) {
> > + if (drm_core_check_feature(dev, DRIVER_LEGACY)) {
> > /*
> > * Since the master is disappearing, so is the
> > * possibility to lock.
> > diff --git a/drivers/gpu/drm/drm_bufs.c b/drivers/gpu/drm/drm_bufs.c
> > index c3a12cd8bd0d..32191513e82d 100644
> > --- a/drivers/gpu/drm/drm_bufs.c
> > +++ b/drivers/gpu/drm/drm_bufs.c
> > @@ -397,7 +397,7 @@ int drm_legacy_addmap_ioctl(struct drm_device *dev, void *data,
> > return -EPERM;
> > if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
> > - drm_core_check_feature(dev, DRIVER_MODESET))
> > + !drm_core_check_feature(dev, DRIVER_LEGACY))
> > return -EINVAL;
> > err = drm_addmap_core(dev, map->offset, map->size, map->type,
> > @@ -443,7 +443,7 @@ int drm_legacy_getmap_ioctl(struct drm_device *dev, void *data,
> > int i;
> > if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
> > - drm_core_check_feature(dev, DRIVER_MODESET))
> > + !drm_core_check_feature(dev, DRIVER_LEGACY))
> > return -EINVAL;
> > idx = map->offset;
> > @@ -545,7 +545,7 @@ EXPORT_SYMBOL(drm_legacy_rmmap_locked);
> > void drm_legacy_rmmap(struct drm_device *dev, struct drm_local_map *map)
> > {
> > if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
> > - drm_core_check_feature(dev, DRIVER_MODESET))
> > + !drm_core_check_feature(dev, DRIVER_LEGACY))
> > return;
> > mutex_lock(&dev->struct_mutex);
> > @@ -558,7 +558,7 @@ void drm_legacy_master_rmmaps(struct drm_device *dev, struct drm_master *master)
> > {
> > struct drm_map_list *r_list, *list_temp;
> > - if (drm_core_check_feature(dev, DRIVER_MODESET))
> > + if (!drm_core_check_feature(dev, DRIVER_LEGACY))
> > return;
> > mutex_lock(&dev->struct_mutex);
> > @@ -595,7 +595,7 @@ int drm_legacy_rmmap_ioctl(struct drm_device *dev, void *data,
> > int ret;
> > if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
> > - drm_core_check_feature(dev, DRIVER_MODESET))
> > + !drm_core_check_feature(dev, DRIVER_LEGACY))
> > return -EINVAL;
> > mutex_lock(&dev->struct_mutex);
> > @@ -1220,7 +1220,7 @@ int drm_legacy_addbufs(struct drm_device *dev, void *data,
> > struct drm_buf_desc *request = data;
> > int ret;
> > - if (drm_core_check_feature(dev, DRIVER_MODESET))
> > + if (!drm_core_check_feature(dev, DRIVER_LEGACY))
> > return -EINVAL;
> > if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
> > @@ -1266,7 +1266,7 @@ int drm_legacy_infobufs(struct drm_device *dev, void *data,
> > int i;
> > int count;
> > - if (drm_core_check_feature(dev, DRIVER_MODESET))
> > + if (!drm_core_check_feature(dev, DRIVER_LEGACY))
> > return -EINVAL;
> > if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
> > @@ -1347,7 +1347,7 @@ int drm_legacy_markbufs(struct drm_device *dev, void *data,
> > int order;
> > struct drm_buf_entry *entry;
> > - if (drm_core_check_feature(dev, DRIVER_MODESET))
> > + if (!drm_core_check_feature(dev, DRIVER_LEGACY))
> > return -EINVAL;
> > if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
> > @@ -1395,7 +1395,7 @@ int drm_legacy_freebufs(struct drm_device *dev, void *data,
> > int idx;
> > struct drm_buf *buf;
> > - if (drm_core_check_feature(dev, DRIVER_MODESET))
> > + if (!drm_core_check_feature(dev, DRIVER_LEGACY))
> > return -EINVAL;
> > if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
> > @@ -1450,7 +1450,7 @@ int drm_legacy_mapbufs(struct drm_device *dev, void *data,
> > struct drm_buf_map *request = data;
> > int i;
> > - if (drm_core_check_feature(dev, DRIVER_MODESET))
> > + if (!drm_core_check_feature(dev, DRIVER_LEGACY))
> > return -EINVAL;
> > if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA))
> > @@ -1530,7 +1530,7 @@ int drm_legacy_mapbufs(struct drm_device *dev, void *data,
> > int drm_legacy_dma_ioctl(struct drm_device *dev, void *data,
> > struct drm_file *file_priv)
> > {
> > - if (drm_core_check_feature(dev, DRIVER_MODESET))
> > + if (!drm_core_check_feature(dev, DRIVER_LEGACY))
> > return -EINVAL;
> > if (dev->driver->dma_ioctl)
> > diff --git a/drivers/gpu/drm/drm_context.c b/drivers/gpu/drm/drm_context.c
> > index 192a5f9eeb74..3c4000facb36 100644
> > --- a/drivers/gpu/drm/drm_context.c
> > +++ b/drivers/gpu/drm/drm_context.c
> > @@ -54,7 +54,7 @@ struct drm_ctx_list {
> > void drm_legacy_ctxbitmap_free(struct drm_device * dev, int ctx_handle)
> > {
> > if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
> > - drm_core_check_feature(dev, DRIVER_MODESET))
> > + !drm_core_check_feature(dev, DRIVER_LEGACY))
> > return;
> > mutex_lock(&dev->struct_mutex);
> > @@ -92,7 +92,7 @@ static int drm_legacy_ctxbitmap_next(struct drm_device * dev)
> > void drm_legacy_ctxbitmap_init(struct drm_device * dev)
> > {
> > if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
> > - drm_core_check_feature(dev, DRIVER_MODESET))
> > + !drm_core_check_feature(dev, DRIVER_LEGACY))
> > return;
> > idr_init(&dev->ctx_idr);
> > @@ -109,7 +109,7 @@ void drm_legacy_ctxbitmap_init(struct drm_device * dev)
> > void drm_legacy_ctxbitmap_cleanup(struct drm_device * dev)
> > {
> > if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
> > - drm_core_check_feature(dev, DRIVER_MODESET))
> > + !drm_core_check_feature(dev, DRIVER_LEGACY))
> > return;
> > mutex_lock(&dev->struct_mutex);
> > @@ -131,7 +131,7 @@ void drm_legacy_ctxbitmap_flush(struct drm_device *dev, struct drm_file *file)
> > struct drm_ctx_list *pos, *tmp;
> > if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
> > - drm_core_check_feature(dev, DRIVER_MODESET))
> > + !drm_core_check_feature(dev, DRIVER_LEGACY))
> > return;
> > mutex_lock(&dev->ctxlist_mutex);
> > @@ -177,7 +177,7 @@ int drm_legacy_getsareactx(struct drm_device *dev, void *data,
> > struct drm_map_list *_entry;
> > if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
> > - drm_core_check_feature(dev, DRIVER_MODESET))
> > + !drm_core_check_feature(dev, DRIVER_LEGACY))
> > return -EINVAL;
> > mutex_lock(&dev->struct_mutex);
> > @@ -225,7 +225,7 @@ int drm_legacy_setsareactx(struct drm_device *dev, void *data,
> > struct drm_map_list *r_list = NULL;
> > if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
> > - drm_core_check_feature(dev, DRIVER_MODESET))
> > + !drm_core_check_feature(dev, DRIVER_LEGACY))
> > return -EINVAL;
> > mutex_lock(&dev->struct_mutex);
> > @@ -329,7 +329,7 @@ int drm_legacy_resctx(struct drm_device *dev, void *data,
> > int i;
> > if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
> > - drm_core_check_feature(dev, DRIVER_MODESET))
> > + !drm_core_check_feature(dev, DRIVER_LEGACY))
> > return -EINVAL;
> > if (res->count >= DRM_RESERVED_CONTEXTS) {
> > @@ -363,7 +363,7 @@ int drm_legacy_addctx(struct drm_device *dev, void *data,
> > struct drm_ctx *ctx = data;
> > if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
> > - drm_core_check_feature(dev, DRIVER_MODESET))
> > + !drm_core_check_feature(dev, DRIVER_LEGACY))
> > return -EINVAL;
> > ctx->handle = drm_legacy_ctxbitmap_next(dev);
> > @@ -410,7 +410,7 @@ int drm_legacy_getctx(struct drm_device *dev, void *data,
> > struct drm_ctx *ctx = data;
> > if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
> > - drm_core_check_feature(dev, DRIVER_MODESET))
> > + !drm_core_check_feature(dev, DRIVER_LEGACY))
> > return -EINVAL;
> > /* This is 0, because we don't handle any context flags */
> > @@ -436,7 +436,7 @@ int drm_legacy_switchctx(struct drm_device *dev, void *data,
> > struct drm_ctx *ctx = data;
> > if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
> > - drm_core_check_feature(dev, DRIVER_MODESET))
> > + !drm_core_check_feature(dev, DRIVER_LEGACY))
> > return -EINVAL;
> > DRM_DEBUG("%d\n", ctx->handle);
> > @@ -460,7 +460,7 @@ int drm_legacy_newctx(struct drm_device *dev, void *data,
> > struct drm_ctx *ctx = data;
> > if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
> > - drm_core_check_feature(dev, DRIVER_MODESET))
> > + !drm_core_check_feature(dev, DRIVER_LEGACY))
> > return -EINVAL;
> > DRM_DEBUG("%d\n", ctx->handle);
> > @@ -486,7 +486,7 @@ int drm_legacy_rmctx(struct drm_device *dev, void *data,
> > struct drm_ctx *ctx = data;
> > if (!drm_core_check_feature(dev, DRIVER_KMS_LEGACY_CONTEXT) &&
> > - drm_core_check_feature(dev, DRIVER_MODESET))
> > + !drm_core_check_feature(dev, DRIVER_LEGACY))
> > return -EINVAL;
> > DRM_DEBUG("%d\n", ctx->handle);
> > diff --git a/drivers/gpu/drm/drm_dma.c b/drivers/gpu/drm/drm_dma.c
> > index ea481800ef56..3f83e2ca80ad 100644
> > --- a/drivers/gpu/drm/drm_dma.c
> > +++ b/drivers/gpu/drm/drm_dma.c
> > @@ -50,9 +50,8 @@ int drm_legacy_dma_setup(struct drm_device *dev)
> > int i;
> > if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA) ||
> > - drm_core_check_feature(dev, DRIVER_MODESET)) {
> > + !drm_core_check_feature(dev, DRIVER_LEGACY))
> > return 0;
> > - }
> > dev->buf_use = 0;
> > atomic_set(&dev->buf_alloc, 0);
> > @@ -81,9 +80,8 @@ void drm_legacy_dma_takedown(struct drm_device *dev)
> > int i, j;
> > if (!drm_core_check_feature(dev, DRIVER_HAVE_DMA) ||
> > - drm_core_check_feature(dev, DRIVER_MODESET)) {
> > + !drm_core_check_feature(dev, DRIVER_LEGACY))
> > return;
> > - }
> > if (!dma)
> > return;
> > diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
> > index 323c238fcac7..036cd275c53e 100644
> > --- a/drivers/gpu/drm/drm_fops.c
> > +++ b/drivers/gpu/drm/drm_fops.c
> > @@ -92,7 +92,7 @@ static int drm_setup(struct drm_device * dev)
> > int ret;
> > if (dev->driver->firstopen &&
> > - !drm_core_check_feature(dev, DRIVER_MODESET)) {
> > + drm_core_check_feature(dev, DRIVER_LEGACY)) {
> > ret = dev->driver->firstopen(dev);
> > if (ret != 0)
> > return ret;
> > @@ -346,7 +346,7 @@ void drm_lastclose(struct drm_device * dev)
> > dev->driver->lastclose(dev);
> > DRM_DEBUG("driver lastclose completed\n");
> > - if (!drm_core_check_feature(dev, DRIVER_MODESET))
> > + if (drm_core_check_feature(dev, DRIVER_LEGACY))
> > drm_legacy_dev_reinit(dev);
> > }
> > @@ -389,7 +389,7 @@ int drm_release(struct inode *inode, struct file *filp)
> > (long)old_encode_dev(file_priv->minor->kdev->devt),
> > dev->open_count);
> > - if (!drm_core_check_feature(dev, DRIVER_MODESET))
> > + if (drm_core_check_feature(dev, DRIVER_LEGACY))
> > drm_legacy_lock_release(dev, filp);
> > if (drm_core_check_feature(dev, DRIVER_HAVE_DMA))
> > diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
> > index 5085fd90f74d..0663a92922a8 100644
> > --- a/drivers/gpu/drm/drm_ioctl.c
> > +++ b/drivers/gpu/drm/drm_ioctl.c
> > @@ -714,9 +714,9 @@ long drm_ioctl(struct file *filp,
> > if (ksize > in_size)
> > memset(kdata + in_size, 0, ksize - in_size);
> > - /* Enforce sane locking for kms driver ioctls. Core ioctls are
> > + /* Enforce sane locking for modern driver ioctls. Core ioctls are
> > * too messy still. */
> > - if ((drm_core_check_feature(dev, DRIVER_MODESET) && is_driver_ioctl) ||
> > + if ((!drm_core_check_feature(dev, DRIVER_LEGACY) && is_driver_ioctl) ||
> > (ioctl->flags & DRM_UNLOCKED))
> > retcode = func(dev, kdata, file_priv);
> > else {
> > diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
> > index a33465d8e133..d6d022b7c29b 100644
> > --- a/drivers/gpu/drm/drm_irq.c
> > +++ b/drivers/gpu/drm/drm_irq.c
> > @@ -482,7 +482,7 @@ int drm_irq_install(struct drm_device *dev, int irq)
> > return ret;
> > }
> > - if (!drm_core_check_feature(dev, DRIVER_MODESET))
> > + if (drm_core_check_feature(dev, DRIVER_LEGACY))
> > vga_client_register(dev->pdev, (void *)dev, drm_irq_vgaarb_nokms, NULL);
> > /* After installing handler */
> > @@ -491,7 +491,7 @@ int drm_irq_install(struct drm_device *dev, int irq)
> > if (ret < 0) {
> > dev->irq_enabled = false;
> > - if (!drm_core_check_feature(dev, DRIVER_MODESET))
> > + if (drm_core_check_feature(dev, DRIVER_LEGACY))
> > vga_client_register(dev->pdev, NULL, NULL, NULL);
> > free_irq(irq, dev);
> > } else {
> > @@ -557,7 +557,7 @@ int drm_irq_uninstall(struct drm_device *dev)
> > DRM_DEBUG("irq=%d\n", dev->irq);
> > - if (!drm_core_check_feature(dev, DRIVER_MODESET))
> > + if (drm_core_check_feature(dev, DRIVER_LEGACY))
> > vga_client_register(dev->pdev, NULL, NULL, NULL);
> > if (dev->driver->irq_uninstall)
> > @@ -592,7 +592,7 @@ int drm_control(struct drm_device *dev, void *data,
> > if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
> > return 0;
> > - if (drm_core_check_feature(dev, DRIVER_MODESET))
> > + if (!drm_core_check_feature(dev, DRIVER_LEGACY))
> > return 0;
> > /* UMS was only ever supported on pci devices. */
> > if (WARN_ON(!dev->pdev))
> > @@ -1488,7 +1488,7 @@ int drm_modeset_ctl(struct drm_device *dev, void *data,
> > return 0;
> > /* KMS drivers handle this internally */
> > - if (drm_core_check_feature(dev, DRIVER_MODESET))
> > + if (!drm_core_check_feature(dev, DRIVER_LEGACY))
> > return 0;
> > pipe = modeset->crtc;
> > diff --git a/drivers/gpu/drm/drm_lock.c b/drivers/gpu/drm/drm_lock.c
> > index 48ac0ebbd663..c901f3c5b269 100644
> > --- a/drivers/gpu/drm/drm_lock.c
> > +++ b/drivers/gpu/drm/drm_lock.c
> > @@ -163,7 +163,7 @@ int drm_legacy_lock(struct drm_device *dev, void *data,
> > struct drm_master *master = file_priv->master;
> > int ret = 0;
> > - if (drm_core_check_feature(dev, DRIVER_MODESET))
> > + if (!drm_core_check_feature(dev, DRIVER_LEGACY))
> > return -EINVAL;
> > ++file_priv->lock_count;
> > @@ -252,7 +252,7 @@ int drm_legacy_unlock(struct drm_device *dev, void *data, struct drm_file *file_
> > struct drm_lock *lock = data;
> > struct drm_master *master = file_priv->master;
> > - if (drm_core_check_feature(dev, DRIVER_MODESET))
> > + if (!drm_core_check_feature(dev, DRIVER_LEGACY))
> > return -EINVAL;
> > if (lock->context == DRM_KERNEL_CONTEXT) {
> > diff --git a/drivers/gpu/drm/drm_pci.c b/drivers/gpu/drm/drm_pci.c
> > index b2f8f1062d5f..d86362fc8ac6 100644
> > --- a/drivers/gpu/drm/drm_pci.c
> > +++ b/drivers/gpu/drm/drm_pci.c
> > @@ -175,7 +175,7 @@ int drm_irq_by_busid(struct drm_device *dev, void *data,
> > {
> > struct drm_irq_busid *p = data;
> > - if (drm_core_check_feature(dev, DRIVER_MODESET))
> > + if (!drm_core_check_feature(dev, DRIVER_LEGACY))
> > return -EINVAL;
> > /* UMS was only ever support on PCI devices. */
> > @@ -263,7 +263,7 @@ int drm_get_pci_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
> > /* No locking needed since shadow-attach is single-threaded since it may
> > * only be called from the per-driver module init hook. */
> > - if (!drm_core_check_feature(dev, DRIVER_MODESET))
> > + if (drm_core_check_feature(dev, DRIVER_LEGACY))
> > list_add_tail(&dev->legacy_dev_list, &driver->legacy_dev_list);
> > return 0;
> > @@ -299,7 +299,7 @@ int drm_pci_init(struct drm_driver *driver, struct pci_driver *pdriver)
> > DRM_DEBUG("\n");
> > - if (driver->driver_features & DRIVER_MODESET)
> > + if (!(driver->driver_features & DRIVER_LEGACY))
> > return pci_register_driver(pdriver);
> > /* If not using KMS, fall back to stealth mode manual scanning. */
> > @@ -421,7 +421,7 @@ void drm_pci_exit(struct drm_driver *driver, struct pci_driver *pdriver)
> > struct drm_device *dev, *tmp;
> > DRM_DEBUG("\n");
> > - if (driver->driver_features & DRIVER_MODESET) {
> > + if (!(driver->driver_features & DRIVER_LEGACY)) {
> > pci_unregister_driver(pdriver);
> > } else {
> > list_for_each_entry_safe(dev, tmp, &driver->legacy_dev_list,
> > diff --git a/drivers/gpu/drm/drm_scatter.c b/drivers/gpu/drm/drm_scatter.c
> > index bf70431073f6..275bca44f38c 100644
> > --- a/drivers/gpu/drm/drm_scatter.c
> > +++ b/drivers/gpu/drm/drm_scatter.c
> > @@ -68,7 +68,7 @@ static void drm_sg_cleanup(struct drm_sg_mem * entry)
> > void drm_legacy_sg_cleanup(struct drm_device *dev)
> > {
> > if (drm_core_check_feature(dev, DRIVER_SG) && dev->sg &&
> > - !drm_core_check_feature(dev, DRIVER_MODESET)) {
> > + drm_core_check_feature(dev, DRIVER_LEGACY)) {
> > drm_sg_cleanup(dev->sg);
> > dev->sg = NULL;
> > }
> > @@ -88,7 +88,7 @@ int drm_legacy_sg_alloc(struct drm_device *dev, void *data,
> > DRM_DEBUG("\n");
> > - if (drm_core_check_feature(dev, DRIVER_MODESET))
> > + if (!drm_core_check_feature(dev, DRIVER_LEGACY))
> > return -EINVAL;
> > if (!drm_core_check_feature(dev, DRIVER_SG))
> > @@ -201,7 +201,7 @@ int drm_legacy_sg_free(struct drm_device *dev, void *data,
> > struct drm_scatter_gather *request = data;
> > struct drm_sg_mem *entry;
> > - if (drm_core_check_feature(dev, DRIVER_MODESET))
> > + if (!drm_core_check_feature(dev, DRIVER_LEGACY))
> > return -EINVAL;
> > if (!drm_core_check_feature(dev, DRIVER_SG))
>
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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