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Subject[PATCH] linux-next drm_cache.c: fix compilation error
When compiling drm_cache.c on ia64, gcc reports undefined
drm_clflush_ipi_handler() error. The problem is because drm_cache_ipi_handler is
a typo.

One straightforward fix is changing drm_cache_ipi_handler to
drm_clflush_ipi_handler.

But since drm_clflush_ipi_handler() does nothing on non-x86 platforms and ipi
handling is costly, it would be better to just do nothing on non-x86 platforms
and remove drm_clflush_ipi_handler() for those platforms.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>

---
The issue was introduced by commit c9c97b8c75019814d8c007059bc827bb475be917
in linux-next.

drm_cache.c | 7 -------
1 files changed, 7 deletions(-)

diff --git a/drivers/gpu/drm/drm_cache.c b/drivers/gpu/drm/drm_cache.c
index 3a5575e..8054a5c 100644
--- a/drivers/gpu/drm/drm_cache.c
+++ b/drivers/gpu/drm/drm_cache.c
@@ -62,10 +62,6 @@ drm_clflush_ipi_handler(void *null)
{
wbinvd();
}
-#elif !defined(__powerpc__)
-static void drm_cache_ipi_handler(void *dummy)
-{
-}
#endif
void
drm_clflush_pages(struct page *pages[], unsigned long num_pages)
@@ -94,9 +90,6 @@ drm_clflush_pages(struct page *pages[], unsigned long num_pages)
(unsigned long)page_virtual + PAGE_SIZE);
kunmap_atomic(page_virtual, KM_USER0);
}
-#else
- if (on_each_cpu(drm_clflush_ipi_handler, NULL, 1) != 0)
- printk(KERN_ERR "Timed out waiting for drm cache flush\n");
#endif
}
EXPORT_SYMBOL(drm_clflush_pages);

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