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SubjectRe: [PATCH] tags: add a space regex to DECLARE_BITMAP
On 2021-11-01 15:59, Zhaoyu Liu wrote:
> When "make tags", it prompts a warning:
>
> ctags: Warning: drivers/pci/controller/pcie-apple.c:150:
> null expansion of name pattern "\1"
>
> The reason is that there is an indentation beside arguments of
> DECLARE_BITMAP, but it can parsed normally by gtags. It's also
> allowed in C.
>
> So fix this regex temporarily, and wait for better solutions
> applied to other regexs.
>
> Reviewed-by: Marc Zyngier <maz@kernel.org>

No, please! I never reviewed this patch. I *suggested*i it [1]
as a potential avenue for improvement.

You cannot put this tag on a patch unless someone explicitly
grants it.

> Signed-off-by: Zhaoyu Liu <zackary.liu.pro@gmail.com>
> ---
> scripts/tags.sh | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/scripts/tags.sh b/scripts/tags.sh
> index b24bfaec6290..7e5f19391f20 100755
> --- a/scripts/tags.sh
> +++ b/scripts/tags.sh
> @@ -186,7 +186,7 @@ regex_c=(
>
> '/\<DEFINE_\(RT_MUTEX\|MUTEX\|SEMAPHORE\|SPINLOCK\)(\([[:alnum:]_]*\)/\2/v/'
> '/\<DEFINE_\(RAW_SPINLOCK\|RWLOCK\|SEQLOCK\)(\([[:alnum:]_]*\)/\2/v/'
> '/\<DECLARE_\(RWSEM\|COMPLETION\)(\([[:alnum:]_]\+\)/\2/v/'
> - '/\<DECLARE_BITMAP(\([[:alnum:]_]*\)/\1/v/'
> + '/\<DECLARE_BITMAP([[:space:]]*\([[:alnum:]_]*\)/\1/v/'
> '/\(^\|\s\)\(\|L\|H\)LIST_HEAD(\([[:alnum:]_]*\)/\3/v/'
> '/\(^\|\s\)RADIX_TREE(\([[:alnum:]_]*\)/\2/v/'
> '/\<DEFINE_PER_CPU([^,]*, *\([[:alnum:]_]*\)/\1/v/'

More importantly, and assuming this is the correct approach,
why should we limit this to DECLARE_BITMAP()?

Thanks,

M.

[1] https://lore.kernel.org/r/878ry89nfp.wl-maz@kernel.org
--
Jazz is not dead. It just smells funny...

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