linux-kernel - [PATCH 4/6] UBI: Fastmap: Wrap fastmap specific function in a ifdef

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Message-Id: <1417347340-6872-5-git-send-email-richard@nod.at>
Date:	Sun, 30 Nov 2014 12:35:38 +0100
From:	Richard Weinberger <richard@....at>
To:	dedekind1@...il.com
Cc:	linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Richard Weinberger <richard@....at>
Subject: [PATCH 4/6] UBI: Fastmap: Wrap fastmap specific function in a ifdef

...such that we can implement NOP variants of some functions.
This will help to reduce fastmap specific ifdefs in other c files.

Signed-off-by: Richard Weinberger <richard@....at>
---
 drivers/mtd/ubi/ubi.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h
index d672412..6fadf34 100644
--- a/drivers/mtd/ubi/ubi.h
+++ b/drivers/mtd/ubi/ubi.h
@@ -864,10 +864,14 @@ int ubi_compare_lebs(struct ubi_device *ubi, const struct ubi_ainf_peb *aeb,
 		      int pnum, const struct ubi_vid_hdr *vid_hdr);
 
 /* fastmap.c */
+#ifdef CONFIG_MTD_UBI_FASTMAP
 size_t ubi_calc_fm_size(struct ubi_device *ubi);
 int ubi_update_fastmap(struct ubi_device *ubi);
 int ubi_scan_fastmap(struct ubi_device *ubi, struct ubi_attach_info *ai,
 		     int fm_anchor);
+#else
+static inline int ubi_update_fastmap(struct ubi_device *ubi) { return 0; }
+#endif
 
 /* block.c */
 #ifdef CONFIG_MTD_UBI_BLOCK
-- 
1.8.4.5

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