3.19.8-ckt18 -stable review patch. If anyone has any objections, please let me know.
---8<------------------------------------------------------------
From: Linus Walleij <linus.walleij@xxxxxxxxxx>
commit 95a001f22b1c5717eafd500a43832249ddd93662 upstream.
As of commit 876fe76d793d03077eb61ba3afab4a383f46c554
"mtd: maps: physmap: Add reference counter to set_vpp()"
the comment in the header file is incorrect and misleading.
Fix it up.
Cc: Russell King <linux@xxxxxxxxxxxxxxxx>
Cc: Paul Parsons <lost.distance@xxxxxxxxx>
Fixes: 876fe76d793d ("mtd: maps: physmap: Add reference counter to set_vpp()")
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Brian Norris <computersforpeace@xxxxxxxxx>
Signed-off-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
---
include/linux/mtd/map.h | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/include/linux/mtd/map.h b/include/linux/mtd/map.h
index 5f487d7..b501e9c 100644
--- a/include/linux/mtd/map.h
+++ b/include/linux/mtd/map.h
@@ -238,8 +238,11 @@ struct map_info {
If there is no cache to care about this can be set to NULL. */
void (*inval_cache)(struct map_info *, unsigned long, ssize_t);
- /* set_vpp() must handle being reentered -- enable, enable, disable
- must leave it enabled. */
+ /* This will be called with 1 as parameter when the first map user
+ * needs VPP, and called with 0 when the last user exits. The map
+ * core maintains a reference counter, and assumes that VPP is a
+ * global resource applying to all mapped flash chips on the system.
+ */
void (*set_vpp)(struct map_info *, int);
unsigned long pfow_base;
--
2.7.4
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