On Mon, Feb 01, 2016 at 11:02:48PM +0100, Linus Walleij wrote:
> 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 <li...@arm.linux.org.uk>
> Cc: Paul Parsons <lost.dista...@yahoo.com>
> Fixes: 876fe76d793d ("mtd: maps: physmap: Add reference counter to set_vpp()")
^^ Let's watch the non-gregkh stable maintainers pick up this patch just
because of this (undocumented in Documentation/stable_kernel_rules.txt)
tag :)
> Signed-off-by: Linus Walleij <linus.wall...@linaro.org>
> ---
> 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 58f3ba709ade..5e0eb7ccabd4 100644
> --- a/include/linux/mtd/map.h
> +++ b/include/linux/mtd/map.h
> @@ -240,8 +240,11 @@ 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;
Looks good, thanks. Applied to l2-mtd.git
