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2017-03-14Staging: android: ion: ion_dummy_driver: remove unnecessary empty lineMaciej Billewicz1-1/+0
Fix coding style issue. Signed-off-by: Maciej Billewicz <maciej.billewicz@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-14staging: android: ion: Replace pr_err with dev_errsimran singhal1-1/+1
All devm functions has a device structure as the first argument which is required by dev_{err,info,dbg} printing functions. This patch converts pr_err to dev_err as dev_* is preferred after calls to devm functions. Done using coccinelle: @r1 exists@ expression e,e1; identifier f =~ "^devm_"; identifier g =~ "^pcim_"; identifier h =~ "^dmam_"; @@ e=\(f\|g\|h\)(e1,...); <+... ( - pr_info( + dev_info(e1, ...); | - pr_err( + dev_err(e1, ...); | - pr_debug( + dev_dbg(e1, ...); ) ...+> Signed-off-by: simran singhal <singhalsimran0@gmail.com> Acked-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-09staging, android: remove lowmemory killer from the treeMichal Hocko3-223/+0
Lowmemory killer is sitting in the staging tree since 2008 without any serious interest for fixing issues brought up by the MM folks. The main objection is that the implementation is basically broken by design: - it hooks into slab shrinker API which is not suitable for this purpose. lowmem_count implementation just shows this nicely. There is no scaling based on the memory pressure and no feedback to the generic shrinker infrastructure. Moreover lowmem_scan is called way too often for the heavy work it performs. - it is not reclaim context aware - no NUMA and/or memcg awareness. As the code stands right now it just adds a maintenance overhead when core MM changes have to update lowmemorykiller.c as well. It also seems that the alternative LMK implementation will be solely in the userspace so this code has no perspective it seems. The staging tree is supposed to be for a code which needs to be put in shape before it can be merged which is not the case here obviously. Signed-off-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-02sched/headers: Prepare to move the task_lock()/unlock() APIs to <linux/sched/task.h>Ingo Molnar1-0/+1
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>
2017-03-02sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>Ingo Molnar1-1/+1
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>
2017-03-02sched/headers: Prepare for new header dependencies before moving code to <uapi/linux/sched/types.h>Ingo Molnar1-0/+1
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>
2017-02-24mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmfDave Jiang1-3/+3
->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>
2017-02-22mm: drop unused argument of zap_page_range()Kirill A. Shutemov1-2/+1
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>
2017-02-22Merge tag 'staging-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds4-29/+27
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 ...
2017-02-12staging: android: ion: fix coding style issueYoungdo, Lee1-3/+3
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>
2017-01-16staging: android/ion: Use variable names in headerBogdan Purcareata1-19/+19
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>
2017-01-16staging: android/ion: Align comment markBogdan Purcareata1-1/+1
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>
2017-01-16staging: android/ion: Don't use return in void functionBogdan Purcareata1-1/+0
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>
2017-01-16staging: android/ion: Split function callBogdan Purcareata1-1/+2
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>
2017-01-14locking/atomic, kref: Add kref_read()Peter Zijlstra1-1/+1
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>
2017-01-03staging: android: ion: return -ENOMEM in ion_cma_heap allocation failureJaewon Kim1-4/+2
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>
2016-12-14mm: use vmf->address instead of of vmf->virtual_addressJan Kara1-1/+1
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>
2016-12-07staging/android: remove Sync Framework tasks from TODOGustavo Padovan1-8/+0
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>
2016-12-06staging: android: ashmem: clean up range inline functionsGuillaume Tucker1-14/+14
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>
2016-12-06staging: android: ashmem: convert range macros to inlinesGuillaume Tucker1-4/+8
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>
2016-10-30Merge 4.9-rc3 into staging-nextGreg Kroah-Hartman2-3/+5
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>
2016-10-24staging: android: ion: Fix error handling in ion_query_heaps()Dan Carpenter1-2/+4
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>
2016-10-24Staging: android: ion: Make a read-only structureMihaela Muraru1-1/+1
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>
2016-10-24staging: android: Remove unnecessary parentheses.Elise Lennion1-1/+1
The removed parentheses are unnecessary and don't add readability. Found using Coccinelle semantic patch: @@ expression e, e1, e2; @@ e = ( (e1 == e2) | - (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>
2016-10-17Staging: android: ion: constify dma_buf_ops structureBhumika Goyal1-1/+1
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>
2016-10-17staging: android/ion: testing the wrong variableDan Carpenter1-1/+1
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>
2016-10-16staging: android: ion_test: remove extra line per checkpatch.plWayne Porter1-1/+0
Cleanup extra line found by checkpatch.pl Signed-off-by: Wayne Porter <wporter82@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-02staging: android: ion: fix checks found by checkpatch.plWayne Porter1-4/+4
Alignment fixes Signed-off-by: Wayne Porter <wporter82@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-10-02staging: android: ion: fix warning found by checkpatch.plWayne Porter1-2/+2
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>
2016-09-27staging:android:ion: Fix whitespace issueYannis Damigos1-1/+1
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>
2016-09-27staging:android:ion: Fix blank line issuesYannis Damigos1-1/+1
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>
2016-09-27staging:android:ion: Fix alignment issuesYannis Damigos1-8/+8
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>
2016-09-27staging:android:ion: Fix comparison with NULLYannis Damigos1-2/+2
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>
2016-09-27Staging: android: fixed permissions style issueEric Salem1-5/+4
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>
2016-09-25staging: ion: Align cases with switchChristopher Pezley1-9/+9
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>
2016-09-25staging: ion: Fix a coding style issueAntti Keränen1-12/+12
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>
2016-09-23staging: android: ion: mark symbols static where possibleBaoyou Xie2-11/+11
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>
2016-09-16staging: android ion/hisi: fix dependenciesArnd Bergmann1-0/+1
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>
2016-09-16staging: android: ion: Fix return value check in hi6220_ion_probe()Wei Yongjun1-2/+2
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>
2016-09-14staging: android: ion: Make ION_OF depend on OF_ADDRESSLaura Abbott1-1/+1
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>
2016-09-12staging: android: ion: Convert hi6220 to common platformLaura Abbott1-151/+44
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>
2016-09-12staging: ion: Add files for parsing the devicetreeLaura Abbott4-0/+234
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>
2016-09-12devicetree: bindings for IonLaura Abbott1-0/+51
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>
2016-09-12staging: android: ion: Add ioctl to query available heapsLaura Abbott4-10/+128
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>
2016-09-08staging: android: ion: Pull out ion ioctls to a separate fileLaura Abbott4-205/+245
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>
2016-09-02staging: android: ion: Drop heap type masksLaura Abbott1-6/+0
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>
2016-09-01staging: android: ion: ion.c fix parenthesis alignmentDidik Setiawan1-4/+3
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>
2016-09-01staging: android: lowmemorykiller.c: Fix checkpatch warningAnson Jacob1-2/+2
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>
2016-09-01staging: android: ion: Remove unnused function ion_handle_bufferJohanna Abrahamsson2-7/+0
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>
2016-09-01staging: android: ion: Remove ret variable in ion_handle_put_nolockJohanna Abrahamsson1-5/+1
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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