netdev - Re: [PATCH net-next 4/4] net: ipa: activate some commented assertions

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Message-ID: <YFQwAYL15nEkfNf7@unreal>
Date:   Fri, 19 Mar 2021 07:00:49 +0200
From:   Leon Romanovsky <leon@...nel.org>
To:     Alex Elder <elder@...aro.org>
Cc:     davem@...emloft.net, kuba@...nel.org, bjorn.andersson@...aro.org,
        evgreen@...omium.org, cpratapa@...eaurora.org, elder@...nel.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next 4/4] net: ipa: activate some commented assertions

On Thu, Mar 18, 2021 at 11:29:23PM -0500, Alex Elder wrote:
> Convert some commented assertion statements into real calls to
> ipa_assert().  If the IPA device pointer is available, provide it,
> otherwise pass NULL for that.
> 
> There are lots more places to convert, but this serves as an initial
> verification of the new mechanism.  The assertions here implement
> both runtime and build-time assertions, both with and without the
> device pointer.
> 
> Signed-off-by: Alex Elder <elder@...aro.org>
> ---
>  drivers/net/ipa/ipa_reg.h   | 7 ++++---
>  drivers/net/ipa/ipa_table.c | 5 ++++-
>  2 files changed, 8 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/net/ipa/ipa_reg.h b/drivers/net/ipa/ipa_reg.h
> index 732e691e9aa62..d0de85de9f08d 100644
> --- a/drivers/net/ipa/ipa_reg.h
> +++ b/drivers/net/ipa/ipa_reg.h
> @@ -9,6 +9,7 @@
>  #include <linux/bitfield.h>
>  
>  #include "ipa_version.h"
> +#include "ipa_assert.h"
>  
>  struct ipa;
>  
> @@ -212,7 +213,7 @@ static inline u32 ipa_reg_bcr_val(enum ipa_version version)
>  			BCR_HOLB_DROP_L2_IRQ_FMASK |
>  			BCR_DUAL_TX_FMASK;
>  
> -	/* assert(version != IPA_VERSION_4_5); */
> +	ipa_assert(NULL, version != IPA_VERSION_4_5);

This assert will fire for IPA_VERSION_4_2, I doubt that this is
something you want.

Thanks