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SubjectRe: [PATCH-V2] fs/btrfs: Fix uninitialized variable
On Tue, Apr 27, 2021 at 06:16:27PM +0100, Khaled ROMDHANI wrote:
> The variable 'zone' is uninitialized which
> introduce some build warning.
>
> Reported-by: kernel test robot <lkp@intel.com>
> Signed-off-by: Khaled ROMDHANI <khaledromdhani216@gmail.com>
> ---
> v2: catch the init as an assertion
> ---
> fs/btrfs/zoned.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c
> index 432509f4b3ac..70c0b1b2ff04 100644
> --- a/fs/btrfs/zoned.c
> +++ b/fs/btrfs/zoned.c
> @@ -144,7 +144,7 @@ static inline u32 sb_zone_number(int shift, int mirror)
> case 1: zone = 1ULL << (BTRFS_SB_LOG_FIRST_SHIFT - shift); break;
> case 2: zone = 1ULL << (BTRFS_SB_LOG_SECOND_SHIFT - shift); break;
> default:
> - ASSERT(zone);
> + ASSERT(zone = 0);

I'm sorry but this doesn't make any kind of sense.

> break;
> }

regards,
dan carpenter

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