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ANDROID: staging: android: ion: Fix build when CONFIG_ION_SYSTEM_HEAP=n

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Fixes: 5e3a3fe770e6 ("ANDROID: staging: android: ion: Expose total heap and pool sizes via sysfs")
When CONFIG_ION_SYSTEM_HEAP not set ion_page_pool_nr_pages symbol will not
be compiled. Fix this by providing an implementation for this configuration.

Bug: 138148041
Test: build with CONFIG_ION_SYSTEM_HEAP=n
Change-Id: I77b87e8cd6789a06336c724c206acc832b302d08
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
This commit is contained in:
Suren Baghdasaryan 2019-12-17 09:51:12 -08:00
parent 19d5fdf92c
commit 74af3535e0
1 changed files with 5 additions and 0 deletions
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5
drivers/staging/android/ion/ion.h
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@ -315,7 +315,12 @@ struct ion_page_pool *ion_page_pool_create(gfp_t gfp_mask, unsigned int order);
void ion_page_pool_destroy(struct ion_page_pool *pool);
struct page *ion_page_pool_alloc(struct ion_page_pool *pool);
void ion_page_pool_free(struct ion_page_pool *pool, struct page *page);
#ifdef CONFIG_ION_SYSTEM_HEAP
long ion_page_pool_nr_pages(void);
#else
static inline long ion_page_pool_nr_pages(void) { return 0; }
#endif
/** ion_page_pool_shrink - shrinks the size of the memory cached in the pool
* @pool: the pool