| Commit message (Collapse) | Author | Age | Files | Lines |
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Seeing the kunmap_atomic dma_buf_ops share the same name with a macro
in highmem.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>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1492630570-879-1-git-send-email-logang@deltatee.com
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vfs_llseek will check whether the file mode has
FMODE_LSEEK, no return failure. But ashmem can be
lseek, so add FMODE_LSEEK to ashmem file.
Comment From Greg Hackmann:
ashmem_llseek() passes the llseek() call through to the backing
shmem file. 91360b02ab48 ("ashmem: use vfs_llseek()") changed
this from directly calling the file's llseek() op into a VFS
layer call. This also adds a check for the FMODE_LSEEK bit, so
without that bit ashmem_llseek() now always fails with -ESPIPE.
Fixes: 91360b02ab48 ("ashmem: use vfs_llseek()")
Signed-off-by: Shuxiao Zhang <zhangshuxiao@xiaomi.com>
Tested-by: Greg Hackmann <ghackmann@google.com>
Cc: stable <stable@vger.kernel.org> # 3.18+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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<linux/sched/task.h>
But first update the code that uses these facilities with the
new header.
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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<linux/sched/signal.h>
We are going to split <linux/sched/signal.h> out of <linux/sched.h>, which
will have to be picked up from other headers and a couple of .c files.
Create a trivial placeholder <linux/sched/signal.h> file that just
maps to <linux/sched.h> to make this patch obviously correct and
bisectable.
Include the new header in the files that are going to need it.
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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<uapi/linux/sched/types.h>
We are going to move scheduler ABI details to <uapi/linux/sched/types.h>,
which will be used from a number of .c files.
Create empty placeholder header that maps to <linux/types.h>.
Include the new header in the files that are going to need it.
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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->fault(), ->page_mkwrite(), and ->pfn_mkwrite() calls do not need to
take a vma and vmf parameter when the vma already resides in vmf.
Remove the vma parameter to simplify things.
[arnd@arndb.de: fix ARM build]
Link: http://lkml.kernel.org/r/20170125223558.1451224-1-arnd@arndb.de
Link: http://lkml.kernel.org/r/148521301778.19116.10840599906674778980.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Darrick J. Wong <darrick.wong@oracle.com>
Cc: Matthew Wilcox <mawilcox@microsoft.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Jan Kara <jack@suse.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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There's no users of zap_page_range() who wants non-NULL 'details'.
Let's drop it.
Link: http://lkml.kernel.org/r/20170118122429.43661-3-kirill.shutemov@linux.intel.com
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging/iio driver updates from Greg KH:
"Here is the big staging and iio driver patchsets for 4.11-rc1.
We almost broke even this time around, with only a few thousand lines
added overall, as we removed the old and obsolete i4l code, but added
some new drivers for the RPi platform, as well as adding some new IIO
drivers.
All of these have been in linux-next for a while with no reported
issues"
* tag 'staging-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (669 commits)
Staging: vc04_services: Fix the "space prohibited" code style errors
Staging: vc04_services: Fix the "wrong indent" code style errors
staging: octeon: Use net_device_stats from struct net_device
Staging: rtl8192u: ieee80211: ieee80211.h - style fix
Staging: rtl8192u: ieee80211: ieee80211_tx.c - style fix
Staging: rtl8192u: ieee80211: rtl819x_BAProc.c - style fix
Staging: rtl8192u: ieee80211: ieee80211_module.c - style fix
Staging: rtl8192u: ieee80211: rtl819x_TSProc.c - style fix
Staging: rtl8192u: r8192U.h - style fix
Staging: rtl8192u: r8192U_core.c - style fix
Staging: rtl8192u: r819xU_cmdpkt.c - style fix
staging: rtl8192u: blank lines aren't necessary before a close brace '}'
staging: rtl8192u: Adding space after enum and struct definition
staging: rtl8192u: Adding space after struct definition
Staging: ks7010: Add required and preferred spaces around operators
Staging: ks7010: ks*: Remove redundant blank lines
Staging: ks7010: ks*: Add missing blank lines after declarations
staging: visorbus, replace init_timer with setup_timer
staging: vt6656: rxtx.c Removed multiple dereferencing
staging: vt6656: Alignment match open parenthesis
...
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Replaced sizeof(struct foo) into sizeof(*ptr), found by checkpatch.pl.
Signed-off-by: Youngdo, Lee <oss.ydlee@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Populate header function signatures with variable names as well, not
just variable types.
Signed-off-by: Bogdan Purcareata <bogdan.purcareata@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix missing space right before multiple line comment closing.
Signed-off-by: Bogdan Purcareata <bogdan.purcareata@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Return statements are superfluous in void functions, and checkpatch
complains about them too.
Remove offending return.
Signed-off-by: Bogdan Purcareata <bogdan.purcareata@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix checkpatch error of line exceeding 80 characters.
Signed-off-by: Bogdan Purcareata <bogdan.purcareata@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Initial Commit 349c9e138551 ("gpu: ion: add CMA heap") returns -1 in allocation
failure. The returned value is passed up to userspace through ioctl. So user can
misunderstand error reason as -EPERM(1) rather than -ENOMEM(12).
This patch simply changed this to return -ENOMEM.
Signed-off-by: Jaewon Kim <jaewon31.kim@samsung.com>
Acked-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Since we need to change the implementation, stop exposing internals.
Provide kref_read() to read the current reference count; typically
used for debug messages.
Kills two anti-patterns:
atomic_read(&kref->refcount)
kref->refcount.counter
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Every single user of vmf->virtual_address typed that entry to unsigned
long before doing anything with it so the type of virtual_address does
not really provide us any additional safety. Just use masked
vmf->address which already has the appropriate type.
Link: http://lkml.kernel.org/r/1479460644-25076-3-git-send-email-jack@suse.cz
Signed-off-by: Jan Kara <jack@suse.cz>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The destaging work is now fully complete.
Cc: Arve Hjønnevåg <arve@android.com>
Cc: Riley Andrews <riandrews@android.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Clean up the code in inline functions that deal with page and
range addresses. Use bool instead of int for boolean return
types and remove superfluous brackets.
Signed-off-by: Guillaume Tucker <guillaume.tucker@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Convert range_size and range_on_lru macros to inline functions to
fix checkpatch check:
CHECK: Macro argument reuse 'range' - possible side-effects?
Signed-off-by: Guillaume Tucker <guillaume.tucker@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This resolves a merge issue with
drivers/staging/iio/accel/sca3000_core.c and we want the fixes all in
here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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If the copy_to_user() fails we should unlock and return directly without
updating "cnt". Also the return value should be -EFAULT instead of the
number of bytes remaining.
Fixes: 02b23803c6af ("staging: android: ion: Add ioctl to query available heaps")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We're testing "pdev" but we intended to test "heap_pdev". This is a
static checker fix and it's unlikely that anyone is affected by this
bug.
Fixes: 13439479c7de ('staging: ion: Add files for parsing the devicetree')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch add const qualifier at the declaration of the structure.
The structure become a read-only data, this increase the security.
Found with Coccinelle:
@r disable optional_qualifier@
identifier s,i;
@@
* static struct s i ={...};
Signed-off-by: Mihaela Muraru <mihaela.muraru21@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The removed parentheses are unnecessary and don't add readability.
Found using Coccinelle semantic patch:
@@ expression e, e1, e2; @@
e =
(
(e1 == e2)
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- (e1)
+ e1
)
Signed-off-by: Elise Lennion <elise.lennion@gmail.com>
Acked-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The dma_buf_ops structure is stored in the ops field of a
dma_buf_export_info structure and also used as a condition inside the
if() statement. The if condition does not modify its value and the
ops field is of type const struct *dma_buf_ops, so dma_buf_ops
structures having this property can be declared as const.
File size before:
text data bss dec hex filename
14471 819 224 15514 3c9a
drivers/staging/android/ion/ion.o
File size after:
text data bss dec hex filename
14599 707 224 15530 3caa
drivers/staging/android/ion/ion.o
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Cleanup extra line found by checkpatch.pl
Signed-off-by: Wayne Porter <wporter82@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Alignment fixes
Signed-off-by: Wayne Porter <wporter82@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix checkpatch.pl warning:
WARNING: braces {} are not necessary for single statement blocks
Signed-off-by: Wayne Porter <wporter82@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes the following whitespace issue:
CHECK: spaces preferred around that '*' (ctx:VxV)
FILE: drivers/staging/android/ion/ion_of.c:91:
+ sizeof(struct ion_platform_heap)*num_heaps,
Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes the following blank line issues:
CHECK: Please don't use multiple blank lines
CHECK: Please use a blank line after function/struct/union/enum declarations
+}
+RESERVEDMEM_OF_DECLARE(ion, "ion-region", rmem_ion_setup);
Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes the following whitespace issues:
CHECK: Alignment should match open parenthesis
+ pr_info("%s: id %d type %d name %s align %lx\n", __func__,
+ heap->id, heap->type, heap->name, heap->align);
CHECK: Alignment should match open parenthesis
+struct ion_platform_data *ion_parse_dt(struct platform_device *pdev,
+ struct ion_of_heap *compatible)
CHECK: Alignment should match open parenthesis
+ heaps = devm_kzalloc(&pdev->dev,
+ sizeof(struct ion_platform_heap)*num_heaps,
CHECK: Alignment should match open parenthesis
+ data = devm_kzalloc(&pdev->dev, sizeof(struct ion_platform_data),
+ GFP_KERNEL);
CHECK: Alignment should match open parenthesis
+ heap_pdev = of_platform_device_create(node, heaps[i].name,
+ &pdev->dev);
CHECK: Alignment should match open parenthesis
+ pr_debug("%s: heap %s base %pa size %pa dev %p\n", __func__,
+ heap->name, &rmem->base, &rmem->size, dev);
CHECK: Alignment should match open parenthesis
+static void rmem_ion_device_release(struct reserved_mem *rmem,
+ struct device *dev)
Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes the following comparison with NULL issues:
CHECK: Comparison to NULL could be written "compatible[i].name"
+ for (i = 0; compatible[i].name != NULL; i++) {
CHECK: Comparison to NULL could be written "!compatible[i].name"
+ if (compatible[i].name == NULL)
Signed-off-by: Yannis Damigos <giannis.damigos@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fixed a coding style issue. Changed symbolic permissions to octal.
Signed-off-by: Eric Salem <ericsalem@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The preferred indentation for cases and switches has the cases at
the same level as the switch.
Signed-off-by: Christopher H. Pezley <chris@pezley.net>
Acked-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes the alignment of an allocation flag block comment
and moves the comments before each #define.
Signed-off-by: Antti Keränen <detegr@gmail.com>
Acked-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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We get 4 warnings when building kernel with W=1:
drivers/staging/android/ion/ion_carveout_heap.c:36:17: warning: no previous prototype for 'ion_carveout_allocate' [-Wmissing-prototypes]
drivers/staging/android/ion/ion_carveout_heap.c:50:6: warning: no previous prototype for 'ion_carveout_free' [-Wmissing-prototypes]
drivers/staging/android/ion/ion_of.c:28:5: warning: no previous prototype for 'ion_parse_dt_heap_common' [-Wmissing-prototypes]
drivers/staging/android/ion/ion_of.c:54:5: warning: no previous prototype for 'ion_setup_heap_common' [-Wmissing-prototypes]
In fact, these functions are only used in the file in which they are
declared and don't need a declaration, but can be made static.
so this patch marks these functions with 'static'.
Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The newly added Hi6220 Ion code fails to build when the ION_OF helpers
are not present:
drivers/staging/android/ion/hisilicon/hi6220_ion.o: In function `hi6220_ion_remove':
hi6220_ion.c:(.text.hi6220_ion_remove+0x4c): undefined reference to `ion_destroy_platform_data'
drivers/staging/android/ion/hisilicon/hi6220_ion.o: In function `hi6220_ion_probe':
hi6220_ion.c:(.text.hi6220_ion_probe+0x5c): undefined reference to `ion_parse_dt'
hi6220_ion.c:(.text.hi6220_ion_probe+0xf8): undefined reference to `ion_destroy_platform_data'
This selects the symbol when needed.
Fixes: 2b40182a19bc ("staging: android: ion: Add ion driver for Hi6220 SoC platform")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Laura Abbott <labbott@redhat.com>
Reviewed-by: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In case of error, the function ion_device_create() returns ERR_PTR() and
never returns NULL. The NULL test in the return value check should be
replaced with IS_ERR().
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Sumit Semwal <sumit.semwal@linaro.org>
Acked-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The Ion platform code uses of_platform_device_create which has
dependencies on OF_ADDRESS. Depending on OF is not sufficient
Building sparc64:allmodconfig ... failed
--------------
Error log:
...
drivers/built-in.o: In function `ion_parse_dt':
(.text+0x11aa2c): undefined reference to `of_platform_device_create'
Add a dependency on OF_ADDRESS
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Laura Abbott <labbott@redhat.com>
Reviewed-by: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Now that we have common devicetree bindings, convert hisilicon
platform to use the binding and parsing methods.
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Devicetree is the preferred mechanism for platform definition
these days. Add a set of files for supporting Ion with devicetree.
This includes a set of bindings for heaps common across all
devices and parsing methods. Clients may use the standard
bindings or they can call the parsing functions along with
their own parsing for platform specific heaps.
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This adds a base set of devicetree bindings for the Ion memory
manager. This supports setting up the generic set of heaps and
their properties.
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Ion clients currently lack a good method to determine what
heaps are available and what ids they map to. This leads
to tight coupling between user and kernel space and headaches.
Add a query ioctl to let userspace know the availability of
heaps.
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The number of Ion ioctls may continue to grow along with necessary
validation. Pull it out into a separate file for easier management
and review.
Signed-off-by: Laura Abbott <labbott@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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There is no advantage to having heap types be a mask. The ion client has
long since dropped the mask. Drop the notion of heap type masks as well.
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix checkpatch.pl warning about "Alignment should match open parenthesis".
Signed-off-by: Didik Setiawan <ds@didiksetiawan.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fix checkpatch.pl 'line over 80 characters' warning
Signed-off-by: Anson Jacob <ansonjacob.aj@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove the function ion_handle_buffer since it is not used anywhere.
Signed-off-by: Johanna Abrahamsson <johanna@mjao.org>
Acked-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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It is not necessary to save the return value of kref_put since it is directly
returned.
Signed-off-by: Johanna Abrahamsson <johanna@mjao.org>
Acked-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This fixes remaining checkpatch.pl "Alignment should match open
parenthesis" issues.
Signed-off-by: Ben LeMasurier <ben@crypt.ly>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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