linux-kernel - Re: [PATCH tip v5 2/5] kbuild: Add option to turn incompatible pointer check into error

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Date:	Wed, 27 Jan 2016 13:03:57 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Daniel Wagner <daniel.wagner@...-carit.de>
cc:	linux-kernel@...r.kernel.org, linux-rt-users@...r.kernel.org,
	Peter Zijlstra <peterz@...radead.org>,
	linux-kbuild@...r.kernel.org,
	Marcelo Tosatti <mtosatti@...hat.com>,
	Paolo Bonzini <pbonzini@...hat.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Paul Gortmaker <paul.gortmaker@...driver.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Boqun Feng <boqun.feng@...il.com>
Subject: Re: [PATCH tip v5 2/5] kbuild: Add option to turn incompatible
 pointer check into error

On Mon, 30 Nov 2015, Daniel Wagner wrote:
>  
> +ifdef CONFIG_ENABLE_ERR_TYPE_CHECK
> +KBUILD_CFLAGS += $(call cc-option,-Werror=incompatible-pointer-types)
> +endif

I don't see a value for making this configurable. If the compiler supports it,
we should use it. It already found a bug, so why would we make that optional?

Thanks,

	tglx