linux-kernel - Re: [PATCH] arm64/sysreg: Fix typo in Enum element regex

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Message-ID: <YqMLmMJ7v48me/5H@arm.com>
Date:   Fri, 10 Jun 2022 10:15:04 +0100
From:   Catalin Marinas <catalin.marinas@....com>
To:     Alejandro Tafalla <atafalla@...on.com>
Cc:     Will Deacon <will@...nel.org>,
        ~postmarketos/upstreaming@...ts.sr.ht,
        Mark Rutland <mark.rutland@....com>,
        Mark Brown <broonie@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64/sysreg: Fix typo in Enum element regex

On Thu, Jun 09, 2022 at 10:42:18PM +0200, Alejandro Tafalla wrote:
> In the awk script, there was a typo with the comparison operator when
> checking if the matched pattern is inside an Enum block.
> This prevented the generation of the whole sysreg-defs.h header.
> 
> Fixes: 66847e0618d7 ("arm64: Add sysreg header generation scripting")
> Signed-off-by: Alejandro Tafalla <atafalla@...on.com>
> ---
>  arch/arm64/tools/gen-sysreg.awk | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/tools/gen-sysreg.awk b/arch/arm64/tools/gen-sysreg.awk
> index 89bfb74e28de..5c55509eb43f 100755
> --- a/arch/arm64/tools/gen-sysreg.awk
> +++ b/arch/arm64/tools/gen-sysreg.awk
> @@ -253,7 +253,7 @@ END {
>  	next
>  }
>  
> -/0b[01]+/ && block = "Enum" {
> +/0b[01]+/ && block == "Enum" {

This makes sense but I'm surprised that we haven't noticed it until now
(maybe some awk versions treat it as a relational operator).

-- 
Catalin