From: Logan Gunthorpe <logang@deltatee.com>
To: linux-kernel@vger.kernel.org, intel-gfx@lists.freedesktop.org,
linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org,
linux-tegra@vger.kernel.org, devel@driverdev.osuosl.org
Cc: "Christoph Hellwig" <hch@lst.de>,
"Sumit Semwal" <sumit.semwal@linaro.org>,
"Russell King" <linux@armlinux.org.uk>,
"David Airlie" <airlied@linux.ie>,
"Daniel Vetter" <daniel.vetter@intel.com>,
"Jani Nikula" <jani.nikula@linux.intel.com>,
"Sean Paul" <seanpaul@chromium.org>,
"Tomi Valkeinen" <tomi.valkeinen@ti.com>,
"Thierry Reding" <thierry.reding@gmail.com>,
"Stephen Warren" <swarren@wwwdotorg.org>,
"Alexandre Courbot" <gnurou@gmail.com>,
"VMware Graphics" <linux-graphics-maintainer@vmware.com>,
"Sinclair Yeh" <syeh@vmware.com>,
"Thomas Hellstrom" <thellstrom@vmware.com>,
"Pawel Osciak" <pawel@osciak.com>,
"Marek Szyprowski" <m.szyprowski@samsung.com>,
"Kyungmin Park" <kyungmin.park@samsung.com>,
"Mauro Carvalho Chehab" <mchehab@kernel.org>,
"Laura Abbott" <labbott@redhat.com>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Arve Hjønnevåg" <arve@android.com>,
"Riley Andrews" <riandrews@android.com>,
"Logan Gunthorpe" <logang@deltatee.com>
Subject: [PATCH] dma-buf: Rename dma-ops to prevent conflict with kunmap_atomic macro
Date: Tue, 18 Apr 2017 18:17:00 -0600 [thread overview]
Message-ID: <1492561021-9533-1-git-send-email-logang@deltatee.com> (raw)
Seeing the kunmap_atomic dma_buf_op shares the same name with a macro
in higmem.h, the former can be aliased if any dma-buf user includes
that header.
I'm personally trying to include highmem.h inside scatterlist.h and this
breaks the dma-buf code proper.
Christoph Hellwig suggested [1] renaming it and pushing this patch ASAP.
To maintain consistency I've renamed all four of kmap* and kunmap* to be
map* and unmap*. (Even though only kmap_atomic presently conflicts.)
[1] https://www.spinics.net/lists/target-devel/msg15070.html
Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
---
drivers/dma-buf/dma-buf.c | 16 ++++++++--------
drivers/gpu/drm/armada/armada_gem.c | 8 ++++----
drivers/gpu/drm/drm_prime.c | 8 ++++----
drivers/gpu/drm/i915/i915_gem_dmabuf.c | 8 ++++----
drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c | 8 ++++----
drivers/gpu/drm/tegra/gem.c | 4 ++--
drivers/gpu/drm/udl/udl_dmabuf.c | 8 ++++----
drivers/gpu/drm/vmwgfx/vmwgfx_prime.c | 8 ++++----
drivers/media/v4l2-core/videobuf2-dma-contig.c | 4 ++--
drivers/media/v4l2-core/videobuf2-dma-sg.c | 4 ++--
drivers/media/v4l2-core/videobuf2-vmalloc.c | 4 ++--
drivers/staging/android/ion/ion.c | 8 ++++----
include/linux/dma-buf.h | 22 +++++++++++-----------
13 files changed, 55 insertions(+), 55 deletions(-)
diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
index 0007b79..7cc2bfe 100644
--- a/drivers/dma-buf/dma-buf.c
+++ b/drivers/dma-buf/dma-buf.c
@@ -405,8 +405,8 @@ struct dma_buf *dma_buf_export(const struct dma_buf_export_info *exp_info)
|| !exp_info->ops->map_dma_buf
|| !exp_info->ops->unmap_dma_buf
|| !exp_info->ops->release
- || !exp_info->ops->kmap_atomic
- || !exp_info->ops->kmap
+ || !exp_info->ops->map_atomic
+ || !exp_info->ops->map
|| !exp_info->ops->mmap)) {
return ERR_PTR(-EINVAL);
}
@@ -872,7 +872,7 @@ void *dma_buf_kmap_atomic(struct dma_buf *dmabuf, unsigned long page_num)
{
WARN_ON(!dmabuf);
- return dmabuf->ops->kmap_atomic(dmabuf, page_num);
+ return dmabuf->ops->map_atomic(dmabuf, page_num);
}
EXPORT_SYMBOL_GPL(dma_buf_kmap_atomic);
@@ -889,8 +889,8 @@ void dma_buf_kunmap_atomic(struct dma_buf *dmabuf, unsigned long page_num,
{
WARN_ON(!dmabuf);
- if (dmabuf->ops->kunmap_atomic)
- dmabuf->ops->kunmap_atomic(dmabuf, page_num, vaddr);
+ if (dmabuf->ops->unmap_atomic)
+ dmabuf->ops->unmap_atomic(dmabuf, page_num, vaddr);
}
EXPORT_SYMBOL_GPL(dma_buf_kunmap_atomic);
@@ -907,7 +907,7 @@ void *dma_buf_kmap(struct dma_buf *dmabuf, unsigned long page_num)
{
WARN_ON(!dmabuf);
- return dmabuf->ops->kmap(dmabuf, page_num);
+ return dmabuf->ops->map(dmabuf, page_num);
}
EXPORT_SYMBOL_GPL(dma_buf_kmap);
@@ -924,8 +924,8 @@ void dma_buf_kunmap(struct dma_buf *dmabuf, unsigned long page_num,
{
WARN_ON(!dmabuf);
- if (dmabuf->ops->kunmap)
- dmabuf->ops->kunmap(dmabuf, page_num, vaddr);
+ if (dmabuf->ops->unmap)
+ dmabuf->ops->unmap(dmabuf, page_num, vaddr);
}
EXPORT_SYMBOL_GPL(dma_buf_kunmap);
diff --git a/drivers/gpu/drm/armada/armada_gem.c b/drivers/gpu/drm/armada/armada_gem.c
index 1597458..d6c2a5d 100644
--- a/drivers/gpu/drm/armada/armada_gem.c
+++ b/drivers/gpu/drm/armada/armada_gem.c
@@ -529,10 +529,10 @@ static const struct dma_buf_ops armada_gem_prime_dmabuf_ops = {
.map_dma_buf = armada_gem_prime_map_dma_buf,
.unmap_dma_buf = armada_gem_prime_unmap_dma_buf,
.release = drm_gem_dmabuf_release,
- .kmap_atomic = armada_gem_dmabuf_no_kmap,
- .kunmap_atomic = armada_gem_dmabuf_no_kunmap,
- .kmap = armada_gem_dmabuf_no_kmap,
- .kunmap = armada_gem_dmabuf_no_kunmap,
+ .map_atomic = armada_gem_dmabuf_no_kmap,
+ .unmap_atomic = armada_gem_dmabuf_no_kunmap,
+ .map = armada_gem_dmabuf_no_kmap,
+ .unmap = armada_gem_dmabuf_no_kunmap,
.mmap = armada_gem_dmabuf_mmap,
};
diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c
index 25aa455..48ffd25 100644
--- a/drivers/gpu/drm/drm_prime.c
+++ b/drivers/gpu/drm/drm_prime.c
@@ -402,10 +402,10 @@ static const struct dma_buf_ops drm_gem_prime_dmabuf_ops = {
.map_dma_buf = drm_gem_map_dma_buf,
.unmap_dma_buf = drm_gem_unmap_dma_buf,
.release = drm_gem_dmabuf_release,
- .kmap = drm_gem_dmabuf_kmap,
- .kmap_atomic = drm_gem_dmabuf_kmap_atomic,
- .kunmap = drm_gem_dmabuf_kunmap,
- .kunmap_atomic = drm_gem_dmabuf_kunmap_atomic,
+ .map = drm_gem_dmabuf_kmap,
+ .map_atomic = drm_gem_dmabuf_kmap_atomic,
+ .unmap = drm_gem_dmabuf_kunmap,
+ .unmap_atomic = drm_gem_dmabuf_kunmap_atomic,
.mmap = drm_gem_dmabuf_mmap,
.vmap = drm_gem_dmabuf_vmap,
.vunmap = drm_gem_dmabuf_vunmap,
diff --git a/drivers/gpu/drm/i915/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/i915_gem_dmabuf.c
index 29bb801..6f3d674 100644
--- a/drivers/gpu/drm/i915/i915_gem_dmabuf.c
+++ b/drivers/gpu/drm/i915/i915_gem_dmabuf.c
@@ -200,10 +200,10 @@ static const struct dma_buf_ops i915_dmabuf_ops = {
.map_dma_buf = i915_gem_map_dma_buf,
.unmap_dma_buf = i915_gem_unmap_dma_buf,
.release = drm_gem_dmabuf_release,
- .kmap = i915_gem_dmabuf_kmap,
- .kmap_atomic = i915_gem_dmabuf_kmap_atomic,
- .kunmap = i915_gem_dmabuf_kunmap,
- .kunmap_atomic = i915_gem_dmabuf_kunmap_atomic,
+ .map = i915_gem_dmabuf_kmap,
+ .map_atomic = i915_gem_dmabuf_kmap_atomic,
+ .unmap = i915_gem_dmabuf_kunmap,
+ .unmap_atomic = i915_gem_dmabuf_kunmap_atomic,
.mmap = i915_gem_dmabuf_mmap,
.vmap = i915_gem_dmabuf_vmap,
.vunmap = i915_gem_dmabuf_vunmap,
diff --git a/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c b/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c
index ee5883f..0dbe030 100644
--- a/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c
+++ b/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c
@@ -160,10 +160,10 @@ static struct dma_buf_ops omap_dmabuf_ops = {
.release = omap_gem_dmabuf_release,
.begin_cpu_access = omap_gem_dmabuf_begin_cpu_access,
.end_cpu_access = omap_gem_dmabuf_end_cpu_access,
- .kmap_atomic = omap_gem_dmabuf_kmap_atomic,
- .kunmap_atomic = omap_gem_dmabuf_kunmap_atomic,
- .kmap = omap_gem_dmabuf_kmap,
- .kunmap = omap_gem_dmabuf_kunmap,
+ .map_atomic = omap_gem_dmabuf_kmap_atomic,
+ .unmap_atomic = omap_gem_dmabuf_kunmap_atomic,
+ .map = omap_gem_dmabuf_kmap,
+ .unmap = omap_gem_dmabuf_kunmap,
.mmap = omap_gem_dmabuf_mmap,
};
diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c
index 17e62ec..1788b14 100644
--- a/drivers/gpu/drm/tegra/gem.c
+++ b/drivers/gpu/drm/tegra/gem.c
@@ -112,8 +112,8 @@ static const struct host1x_bo_ops tegra_bo_ops = {
.unpin = tegra_bo_unpin,
.mmap = tegra_bo_mmap,
.munmap = tegra_bo_munmap,
- .kmap = tegra_bo_kmap,
- .kunmap = tegra_bo_kunmap,
+ .map = tegra_bo_kmap,
+ .unmap = tegra_bo_kunmap,
};
static int tegra_bo_iommu_map(struct tegra_drm *tegra, struct tegra_bo *bo)
diff --git a/drivers/gpu/drm/udl/udl_dmabuf.c b/drivers/gpu/drm/udl/udl_dmabuf.c
index ac90ffd..ed0e636 100644
--- a/drivers/gpu/drm/udl/udl_dmabuf.c
+++ b/drivers/gpu/drm/udl/udl_dmabuf.c
@@ -191,10 +191,10 @@ static struct dma_buf_ops udl_dmabuf_ops = {
.detach = udl_detach_dma_buf,
.map_dma_buf = udl_map_dma_buf,
.unmap_dma_buf = udl_unmap_dma_buf,
- .kmap = udl_dmabuf_kmap,
- .kmap_atomic = udl_dmabuf_kmap_atomic,
- .kunmap = udl_dmabuf_kunmap,
- .kunmap_atomic = udl_dmabuf_kunmap_atomic,
+ .map = udl_dmabuf_kmap,
+ .map_atomic = udl_dmabuf_kmap_atomic,
+ .unmap = udl_dmabuf_kunmap,
+ .unmap_atomic = udl_dmabuf_kunmap_atomic,
.mmap = udl_dmabuf_mmap,
.release = drm_gem_dmabuf_release,
};
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c b/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c
index 31fe32d..0d42a46 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c
@@ -108,10 +108,10 @@ const struct dma_buf_ops vmw_prime_dmabuf_ops = {
.map_dma_buf = vmw_prime_map_dma_buf,
.unmap_dma_buf = vmw_prime_unmap_dma_buf,
.release = NULL,
- .kmap = vmw_prime_dmabuf_kmap,
- .kmap_atomic = vmw_prime_dmabuf_kmap_atomic,
- .kunmap = vmw_prime_dmabuf_kunmap,
- .kunmap_atomic = vmw_prime_dmabuf_kunmap_atomic,
+ .map = vmw_prime_dmabuf_kmap,
+ .map_atomic = vmw_prime_dmabuf_kmap_atomic,
+ .unmap = vmw_prime_dmabuf_kunmap,
+ .unmap_atomic = vmw_prime_dmabuf_kunmap_atomic,
.mmap = vmw_prime_dmabuf_mmap,
.vmap = vmw_prime_dmabuf_vmap,
.vunmap = vmw_prime_dmabuf_vunmap,
diff --git a/drivers/media/v4l2-core/videobuf2-dma-contig.c b/drivers/media/v4l2-core/videobuf2-dma-contig.c
index fb6a177..2db0413 100644
--- a/drivers/media/v4l2-core/videobuf2-dma-contig.c
+++ b/drivers/media/v4l2-core/videobuf2-dma-contig.c
@@ -356,8 +356,8 @@ static struct dma_buf_ops vb2_dc_dmabuf_ops = {
.detach = vb2_dc_dmabuf_ops_detach,
.map_dma_buf = vb2_dc_dmabuf_ops_map,
.unmap_dma_buf = vb2_dc_dmabuf_ops_unmap,
- .kmap = vb2_dc_dmabuf_ops_kmap,
- .kmap_atomic = vb2_dc_dmabuf_ops_kmap,
+ .map = vb2_dc_dmabuf_ops_kmap,
+ .map_atomic = vb2_dc_dmabuf_ops_kmap,
.vmap = vb2_dc_dmabuf_ops_vmap,
.mmap = vb2_dc_dmabuf_ops_mmap,
.release = vb2_dc_dmabuf_ops_release,
diff --git a/drivers/media/v4l2-core/videobuf2-dma-sg.c b/drivers/media/v4l2-core/videobuf2-dma-sg.c
index ecff8f4..6fd1343 100644
--- a/drivers/media/v4l2-core/videobuf2-dma-sg.c
+++ b/drivers/media/v4l2-core/videobuf2-dma-sg.c
@@ -504,8 +504,8 @@ static struct dma_buf_ops vb2_dma_sg_dmabuf_ops = {
.detach = vb2_dma_sg_dmabuf_ops_detach,
.map_dma_buf = vb2_dma_sg_dmabuf_ops_map,
.unmap_dma_buf = vb2_dma_sg_dmabuf_ops_unmap,
- .kmap = vb2_dma_sg_dmabuf_ops_kmap,
- .kmap_atomic = vb2_dma_sg_dmabuf_ops_kmap,
+ .map = vb2_dma_sg_dmabuf_ops_kmap,
+ .map_atomic = vb2_dma_sg_dmabuf_ops_kmap,
.vmap = vb2_dma_sg_dmabuf_ops_vmap,
.mmap = vb2_dma_sg_dmabuf_ops_mmap,
.release = vb2_dma_sg_dmabuf_ops_release,
diff --git a/drivers/media/v4l2-core/videobuf2-vmalloc.c b/drivers/media/v4l2-core/videobuf2-vmalloc.c
index 3f77814..27d1db3 100644
--- a/drivers/media/v4l2-core/videobuf2-vmalloc.c
+++ b/drivers/media/v4l2-core/videobuf2-vmalloc.c
@@ -342,8 +342,8 @@ static struct dma_buf_ops vb2_vmalloc_dmabuf_ops = {
.detach = vb2_vmalloc_dmabuf_ops_detach,
.map_dma_buf = vb2_vmalloc_dmabuf_ops_map,
.unmap_dma_buf = vb2_vmalloc_dmabuf_ops_unmap,
- .kmap = vb2_vmalloc_dmabuf_ops_kmap,
- .kmap_atomic = vb2_vmalloc_dmabuf_ops_kmap,
+ .map = vb2_vmalloc_dmabuf_ops_kmap,
+ .map_atomic = vb2_vmalloc_dmabuf_ops_kmap,
.vmap = vb2_vmalloc_dmabuf_ops_vmap,
.mmap = vb2_vmalloc_dmabuf_ops_mmap,
.release = vb2_vmalloc_dmabuf_ops_release,
diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
index f45115f..95a7f16 100644
--- a/drivers/staging/android/ion/ion.c
+++ b/drivers/staging/android/ion/ion.c
@@ -1020,10 +1020,10 @@ static const struct dma_buf_ops dma_buf_ops = {
.release = ion_dma_buf_release,
.begin_cpu_access = ion_dma_buf_begin_cpu_access,
.end_cpu_access = ion_dma_buf_end_cpu_access,
- .kmap_atomic = ion_dma_buf_kmap,
- .kunmap_atomic = ion_dma_buf_kunmap,
- .kmap = ion_dma_buf_kmap,
- .kunmap = ion_dma_buf_kunmap,
+ .map_atomic = ion_dma_buf_kmap,
+ .unmap_atomic = ion_dma_buf_kunmap,
+ .map = ion_dma_buf_kmap,
+ .unmap = ion_dma_buf_kunmap,
};
struct dma_buf *ion_share_dma_buf(struct ion_client *client,
diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h
index bfb3704..79f27d6 100644
--- a/include/linux/dma-buf.h
+++ b/include/linux/dma-buf.h
@@ -39,13 +39,13 @@ struct dma_buf_attachment;
/**
* struct dma_buf_ops - operations possible on struct dma_buf
- * @kmap_atomic: maps a page from the buffer into kernel address
- * space, users may not block until the subsequent unmap call.
- * This callback must not sleep.
- * @kunmap_atomic: [optional] unmaps a atomically mapped page from the buffer.
- * This Callback must not sleep.
- * @kmap: maps a page from the buffer into kernel address space.
- * @kunmap: [optional] unmaps a page from the buffer.
+ * @map_atomic: maps a page from the buffer into kernel address
+ * space, users may not block until the subsequent unmap call.
+ * This callback must not sleep.
+ * @unmap_atomic: [optional] unmaps a atomically mapped page from the buffer.
+ * This Callback must not sleep.
+ * @map: maps a page from the buffer into kernel address space.
+ * @unmap: [optional] unmaps a page from the buffer.
* @vmap: [optional] creates a virtual mapping for the buffer into kernel
* address space. Same restrictions as for vmap and friends apply.
* @vunmap: [optional] unmaps a vmap from the buffer
@@ -206,10 +206,10 @@ struct dma_buf_ops {
* to be restarted.
*/
int (*end_cpu_access)(struct dma_buf *, enum dma_data_direction);
- void *(*kmap_atomic)(struct dma_buf *, unsigned long);
- void (*kunmap_atomic)(struct dma_buf *, unsigned long, void *);
- void *(*kmap)(struct dma_buf *, unsigned long);
- void (*kunmap)(struct dma_buf *, unsigned long, void *);
+ void *(*map_atomic)(struct dma_buf *, unsigned long);
+ void (*unmap_atomic)(struct dma_buf *, unsigned long, void *);
+ void *(*map)(struct dma_buf *, unsigned long);
+ void (*unmap)(struct dma_buf *, unsigned long, void *);
/**
* @mmap:
--
2.1.4
next reply other threads:[~2017-04-19 0:17 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-19 0:17 Logan Gunthorpe [this message]
2017-04-19 3:08 ` [Intel-gfx] [PATCH] dma-buf: Rename dma-ops to prevent conflict with kunmap_atomic macro kbuild test robot
2017-04-19 16:53 ` Sinclair Yeh
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