[PATCH] [MTD] Fix CFI build error with meaningless nonfunctional .config

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, 2007-08-06 at 18:15 +0200, Ingo Molnar wrote:
> randconfig testing on .23-rc2 triggered the following build error:

When building NOR flash support, you have compile-time options for the
bus width and the number of individual chips which are interleaved
together onto that bus. The code to deal with arbitrary geometry is a
bit convoluted, and people want to just configure it for the specific
hardware they have, to avoid the runtime overhead.

Selecting _none_ of the available options doesn't make any sense. You
should have at least one. This makes it build though, since people
persist in trying.

Signed-off-by: David Woodhouse <[email protected]>

diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h
index 123948b..e17c534 100644
--- a/include/linux/mtd/cfi.h
+++ b/include/linux/mtd/cfi.h
@@ -57,6 +57,15 @@
 #define cfi_interleave_is_8(cfi) (0)
 #endif
 
+#ifndef cfi_interleave
+#warning No CONFIG_MTD_CFI_Ix selected. No NOR chip support can work.
+static inline int cfi_interleave(void *cfi)
+{
+	BUG();
+	return 0;
+}
+#endif
+
 static inline int cfi_interleave_supported(int i)
 {
 	switch (i) {
diff --git a/include/linux/mtd/map.h b/include/linux/mtd/map.h
index 81f3a31..a9fae03 100644
--- a/include/linux/mtd/map.h
+++ b/include/linux/mtd/map.h
@@ -125,7 +125,15 @@
 #endif
 
 #ifndef map_bankwidth
-#error "No bus width supported. What's the point?"
+#warning "No CONFIG_MTD_MAP_BANK_WIDTH_xx selected. No NOR chip support can work"
+static inline int map_bankwidth(void *map)
+{
+	BUG();
+	return 0;
+}
+#define map_bankwidth_is_large(map) (0)
+#define map_words(map) (0)
+#define MAX_MAP_BANKWIDTH 1
 #endif
 
 static inline int map_bankwidth_supported(int w)


-- 
dwmw2

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux