compat: actually, bio_alloc now has 4 params

The original compat check for this got a bit wrapped around the axle.
Both bio_alloc() and bio_alloc_bioset() grew 2 more arguments.  All
the comments and filenames from b6d4d58 say "bio_alloc has 5
params", but it was actually bio_alloc_bioset() that now has 5 params.
And the test takes the 5 params now required for bio_alloc_bioset()
and passed them into bio_alloc()... which causes the correct code for
5.17 kernels to get patched back out erroneously.

Signed-off-by: Michael D Labriola <veggiemike@sourceruckus.org>

drbd/drbd-kernel-compat/gen_patch_names.c

@@ -102,7 +102,7 @@ int main(int argc, char **argv)
 #endif
 
 	patch(1, "bio_alloc", true, false,
-	      COMPAT_BIO_ALLOC_HAS_5_PARAMS, "has_5_params");
+	      COMPAT_BIO_ALLOC_HAS_4_PARAMS, "has_4_params");
 
 #if !defined(COMPAT_HAVE_BIO_SET_DEV)
 	patch(1, "bio_set_dev", true, false,

drbd/drbd-kernel-compat/tests/bio_alloc_has_5_params.c → drbd/drbd-kernel-compat/tests/bio_alloc_has_4_params.c

@@ -6,7 +6,7 @@
 #include <linux/bio.h>
 
 struct bio *foo(struct block_device *bdev, unsigned short nr_vecs,
-		unsigned int opf, gfp_t gfp_mask, struct bio_set *bs)
+		unsigned int opf, gfp_t gfp_mask)
 {
-	return bio_alloc(bdev, nr_vecs, opf, gfp_mask, bs);
+	return bio_alloc(bdev, nr_vecs, opf, gfp_mask);
 }