Re: Automatic device driver back-porting with media_build

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On 17/12/2015 15:08, Mauro Carvalho Chehab wrote:

> Then I guess you're not using vanilla 3.4 Kernel, but some heavily
> modified version. You're on your own here.

#ifdef NEED_KVFREE
#include <linux/mm.h>
static inline void kvfree(const void *addr)
{
	if (is_vmalloc_addr(addr))
		vfree(addr);
	else
		kfree(addr);
}
#endif

/tmp/sandbox/media_build/v4l/compat.h: In function 'kvfree':
/tmp/sandbox/media_build/v4l/compat.h:1631:3: error: implicit declaration of function 'vfree' [-Werror=implicit-function-declaration]
   vfree(addr);
   ^

vfree is declared in linux/vmalloc.h

The fix is trivial:

diff --git a/v4l/compat.h b/v4l/compat.h
index c225c07d6caa..7f3f1d5f9d11 100644
--- a/v4l/compat.h
+++ b/v4l/compat.h
@@ -1625,6 +1625,7 @@ static inline void eth_zero_addr(u8 *addr)
 
 #ifdef NEED_KVFREE
 #include <linux/mm.h>
+#include <linux/vmalloc.h>
 static inline void kvfree(const void *addr)
 {
        if (is_vmalloc_addr(addr))


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