/****************************************************************************** * Xen balloon functionality */ #define RETRY_UNLIMITED 0 struct balloon_stats { /* We aim for 'current allocation' == 'target allocation'. */ unsigned long current_pages; unsigned long target_pages; unsigned long target_unpopulated; /* Number of pages in high- and low-memory balloons. */ unsigned long balloon_low; unsigned long balloon_high; unsigned long total_pages; unsigned long schedule_delay; unsigned long max_schedule_delay; unsigned long retry_count; unsigned long max_retry_count; }; extern struct balloon_stats balloon_stats; void balloon_set_new_target(unsigned long target); int alloc_xenballooned_pages(int nr_pages, struct page **pages); void free_xenballooned_pages(int nr_pages, struct page **pages); struct device; #ifdef CONFIG_XEN_SELFBALLOONING extern int register_xen_selfballooning(struct device *dev); #else static inline int register_xen_selfballooning(struct device *dev) { return -ENOSYS; } #endif e-cleanup'>emaclite-cleanup net-next plumbingsTobias Klauser
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authorLinus Torvalds <torvalds@linux-foundation.org>2016-12-25 14:56:58 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-12-25 14:56:58 -0800
commitd33d5a6c88fcd53fec329a1521010f1bc55fa191 (patch)
treeb95a9598bcf76fd0acc57dff7508cc925db584b6
parent3ddc76dfc786cc6f87852693227fb0b1f124f807 (diff)
avoid spurious "may be used uninitialized" warning
The timer type simplifications caused a new gcc warning: drivers/base/power/domain.c: In function ‘genpd_runtime_suspend’: drivers/base/power/domain.c:562:14: warning: ‘time_start’ may be used uninitialized in this function [-Wmaybe-uninitialized] elapsed_ns = ktime_to_ns(ktime_sub(ktime_get(), time_start)); despite the actual use of "time_start" not having changed in any way. It appears that simply changing the type of ktime_t from a union to a plain scalar type made gcc check the use. The variable wasn't actually used uninitialized, but gcc apparently failed to notice that the conditional around the use was exactly the same as the conditional around the initialization of that variable. Add an unnecessary initialization just to shut up the compiler. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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