[PATCH 3/4] argparse: fix argument flags operate as uint32 type

[David Marchand]

On Tue, Feb 20, 2024 at 2:16 PM Chengwen Feng <fengchengwen at huawei.com> wrote:
>
> The struct rte_argparse_arg's flags was 64bit type, uint64_t should be
> used instead of uint32_t where the operation happened.

Something is strange.
An enum in C is represented as an int.

Plus, this enum type is not used anywhere:
lib/argparse/rte_argparse.h:enum rte_argparse_flag {
lib/argparse/rte_argparse.h:    /** @see rte_argparse_flag */

I understand the flags are a bitmask.
So please remove this enum and define macros instead.


>
> Also, the flags' bit16 was also unused, so don't test bit16 in testcase
> test_argparse_invalid_arg_flags.
>
> Fixes: 6c5c6571601c ("argparse: verify argument config")
> Fixes: 31ed9f9f43bb ("argparse: parse parameters")
>
> Signed-off-by: Chengwen Feng <fengchengwen at huawei.com>
> ---
>  app/test/test_argparse.c    | 16 ++++++++--------
>  lib/argparse/rte_argparse.c |  4 ++--
>  2 files changed, 10 insertions(+), 10 deletions(-)
>
> diff --git a/app/test/test_argparse.c b/app/test/test_argparse.c
> index c98bcee56d..708a575e16 100644
> --- a/app/test/test_argparse.c
> +++ b/app/test/test_argparse.c
> @@ -188,7 +188,7 @@ test_argparse_invalid_arg_help(void)
>  static int
>  test_argparse_invalid_has_val(void)
>  {
> -       uint32_t set_mask[] = { 0,
> +       uint64_t set_mask[] = { 0,
>                                 RTE_ARGPARSE_ARG_NO_VALUE,
>                                 RTE_ARGPARSE_ARG_OPTIONAL_VALUE
>                               };
> @@ -197,7 +197,7 @@ test_argparse_invalid_has_val(void)
>         int ret;
>
>         obj = test_argparse_init_obj();
> -       obj->args[0].flags &= ~0x3u;
> +       obj->args[0].flags &= ~0x3ull;

If flags is a uint64_t, use RTE_BIT64().


I don't know the argparse API, but why do we need this hardcoded (and
hard to understand) ~3 value?
Can it be expressed with the flags defined in the API?


>         ret = rte_argparse_parse(obj, default_argc, default_argv);
>         TEST_ASSERT(ret == -EINVAL, "Argparse parse expect failed!");
>
> @@ -205,7 +205,7 @@ test_argparse_invalid_has_val(void)
>                 obj = test_argparse_init_obj();
>                 obj->args[0].name_long = "abc";
>                 obj->args[0].name_short = NULL;
> -               obj->args[0].flags &= ~0x3u;
> +               obj->args[0].flags &= ~0x3ull;
>                 obj->args[0].flags |= set_mask[index];
>                 ret = rte_argparse_parse(obj, default_argc, default_argv);
>                 TEST_ASSERT(ret == -EINVAL, "Argparse parse expect failed!");
> @@ -269,7 +269,7 @@ test_argparse_invalid_arg_flags(void)
>         int ret;
>
>         obj = test_argparse_init_obj();
> -       obj->args[0].flags |= ~0x107FFu;
> +       obj->args[0].flags |= ~0x7FFull;

Same comments as above.


-- 
David Marchand