[PATCH] arch: x86: entry: vdso: fix type conversion on printf() call

[Enrico Weigelt, metux IT consult]

Fixing the following compiler warning by explicit conversion to long:

In file included from /home/nekrad/src/apu2-dev/pkg/kernel.apu2.git/arch/x86/entry/vdso/vdso2c.c:162:0:
/home/nekrad/src/apu2-dev/pkg/kernel.apu2.git/arch/x86/entry/vdso/vdso2c.h: In function 'extract64':
/home/nekrad/src/apu2-dev/pkg/kernel.apu2.git/arch/x86/entry/vdso/vdso2c.h:38:52: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'size_t {aka unsigned int}' [-Wformat=]
  fprintf(outfile, "static const unsigned char %s[%lu] = {", name, len);
                                                    ^
  CC      mm/filemap.o
In file included from /home/nekrad/src/apu2-dev/pkg/kernel.apu2.git/arch/x86/entry/vdso/vdso2c.c:166:0:
/home/nekrad/src/apu2-dev/pkg/kernel.apu2.git/arch/x86/entry/vdso/vdso2c.h: In function 'extract32':
/home/nekrad/src/apu2-dev/pkg/kernel.apu2.git/arch/x86/entry/vdso/vdso2c.h:38:52: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'size_t {aka unsigned int}' [-Wformat=]
  fprintf(outfile, "static const unsigned char %s[%lu] = {", name, len);

Signed-off-by: Enrico Weigelt, metux IT consult <info@xxxxxxxxx>
---
 arch/x86/entry/vdso/vdso2c.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/entry/vdso/vdso2c.h b/arch/x86/entry/vdso/vdso2c.h
index 1c7cfac7e64a..5c6a4bbc63f9 100644
--- a/arch/x86/entry/vdso/vdso2c.h
+++ b/arch/x86/entry/vdso/vdso2c.h
@@ -35,7 +35,8 @@ static void BITSFUNC(extract)(const unsigned char *data, size_t data_len,
 	if (offset + len > data_len)
 		fail("section to extract overruns input data");
 
-	fprintf(outfile, "static const unsigned char %s[%lu] = {", name, len);
+	fprintf(outfile, "static const unsigned char %s[%lu] = {", name,
+		(unsigned long)len);
 	BITSFUNC(copy)(outfile, data + offset, len);
 	fprintf(outfile, "\n};\n\n");
 }
-- 
2.11.0