[PATCH 1/1] lib: sign conflict in sbi_tlb_entry_process()

Atish Patra atishp at atishpatra.org
Mon Jun 21 13:04:13 PDT 2021


On Mon, Jun 21, 2021 at 12:50 PM Heinrich Schuchardt <xypron.glpk at gmx.de> wrote:
>
> Compiling sbi_tlb_entry_process() with GCC 11 and -Wextra yields:
>
> lib/sbi/sbi_tlb.c: In function ‘sbi_tlb_process_count’:
> lib/sbi/sbi_tlb.c:206:31:
> error: comparison of integer expressions of different signedness:
> ‘u32’ {aka ‘unsigned int’} and ‘int’ [-Werror=sign-compare]
>   206 |                 if (deq_count > count)
>
> Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
> ---
>  lib/sbi/sbi_tlb.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/lib/sbi/sbi_tlb.c b/lib/sbi/sbi_tlb.c
> index 2ba1b7b..8bbe92b 100644
> --- a/lib/sbi/sbi_tlb.c
> +++ b/lib/sbi/sbi_tlb.c
> @@ -193,10 +193,11 @@ static void sbi_tlb_entry_process(struct sbi_tlb_info *tinfo)
>         }
>  }
>
> -static void sbi_tlb_process_count(struct sbi_scratch *scratch, int count)
> +static void sbi_tlb_process_count(struct sbi_scratch *scratch,
> +                                 unsigned int count)
>  {
>         struct sbi_tlb_info tinfo;
> -       u32 deq_count = 0;
> +       unsigned int deq_count = 0;
>         struct sbi_fifo *tlb_fifo =
>                         sbi_scratch_offset_ptr(scratch, tlb_fifo_off);
>
> --
> 2.30.2
>
>
> --
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Reviewed-by: Atish Patra <atish.patra at wdc.com>

--
Regards,
Atish



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