On Mon, Dec 10, 2012 at 09:14:06AM +0100, Wolfram Sang wrote:
> Will need this later for ubiformat.
>
> Signed-off-by: Wolfram Sang <w.sang@xxxxxxxxxxxxxx>
We already have it in a public place: include/linux/log2.h
Sascha
> ---
> drivers/mtd/ubi/ubi-barebox.h | 5 +----
> include/mtd/utils.h | 25 +++++++++++++++++++++++++
> 2 files changed, 26 insertions(+), 4 deletions(-)
> create mode 100644 include/mtd/utils.h
>
> diff --git a/drivers/mtd/ubi/ubi-barebox.h b/drivers/mtd/ubi/ubi-barebox.h
> index 72f29a6..919dc50 100644
> --- a/drivers/mtd/ubi/ubi-barebox.h
> +++ b/drivers/mtd/ubi/ubi-barebox.h
> @@ -25,6 +25,7 @@
> #include <linux/string.h>
> #include <linux/mtd/mtd.h>
> #include <linux/mtd/ubi.h>
> +#include <mtd/utils.h>
>
> #define crc32(seed, data, length) crc32_no_comp(seed, (unsigned char const *)data, length)
>
> @@ -53,10 +54,6 @@ do { \
> #define put_device(...)
> #define ubi_sysfs_init(...) 0
> #define ubi_sysfs_close(...) do { } while (0)
> -static inline int is_power_of_2(unsigned long n)
> -{
> - return (n != 0 && ((n & (n - 1)) == 0));
> -}
>
> /* FIXME */
> #define MKDEV(...) 0
> diff --git a/include/mtd/utils.h b/include/mtd/utils.h
> new file mode 100644
> index 0000000..229fb34
> --- /dev/null
> +++ b/include/mtd/utils.h
> @@ -0,0 +1,25 @@
> +/*
> + * mtd/utils.h - helper functions for various MTD utilities
> + *
> + * Copyright (C) 2012 by Wolfram Sang <w.sang@xxxxxxxxxxxxxx>
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> + * GNU General Public License for more details.
> + */
> +
> +#ifndef INCLUDE_MTD_UTILS_H
> +# define INCLUDE_MTD_UTILS_H
> +
> +static inline int is_power_of_2(unsigned long n)
> +{
> + return (n != 0 && ((n & (n - 1)) == 0));
> +}
> +
> +#endif /* INCLUDE_MTD_UTILS_H */
> --
> 1.7.10.4
>
>
> _______________________________________________
> barebox mailing list
> barebox@xxxxxxxxxxxxxxxxxxx
> http://lists.infradead.org/mailman/listinfo/barebox
>
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