linux-kernel - Re: [PATCH net] net: ipa: fix one GSI register field width

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Message-ID: <90d55f78-c31b-4764-958e-4ad88374518b@linaro.org>
Date:   Wed, 22 Nov 2023 16:43:55 -0600
From:   Alex Elder <elder@...aro.org>
To:     davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com
Cc:     mka@...omium.org, andersson@...nel.org, quic_cpratapa@...cinc.com,
        quic_avuyyuru@...cinc.com, quic_jponduru@...cinc.com,
        quic_subashab@...cinc.com, elder@...nel.org,
        netdev@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net] net: ipa: fix one GSI register field width

On 11/22/23 3:25 PM, Alex Elder wrote:
> The width of the R_LENGTH field of the EV_CH_E_CNTXT_1 GSI register
> is 24 bits (not 20 bits) starting with IPA v5.0.  Fix this.
> 
> Fixes: 627659d542c5 ("net: ipa: add IPA v5.0 GSI register definitions")

All is well on this, but I put the wrong commit hash on the
"Fixes" tag.  I'll send an update soon.  The correct hash is
faf0678ec8a0.

					-Alex

> Signed-off-by: Alex Elder <elder@...aro.org>
> ---
>   drivers/net/ipa/reg/gsi_reg-v5.0.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/ipa/reg/gsi_reg-v5.0.c b/drivers/net/ipa/reg/gsi_reg-v5.0.c
> index d7b81a36d673b..145eb0bd096d6 100644
> --- a/drivers/net/ipa/reg/gsi_reg-v5.0.c
> +++ b/drivers/net/ipa/reg/gsi_reg-v5.0.c
> @@ -78,7 +78,7 @@ REG_STRIDE_FIELDS(EV_CH_E_CNTXT_0, ev_ch_e_cntxt_0,
>   		  0x0001c000 + 0x12000 * GSI_EE_AP, 0x80);
>   
>   static const u32 reg_ev_ch_e_cntxt_1_fmask[] = {
> -	[R_LENGTH]					= GENMASK(19, 0),
> +	[R_LENGTH]					= GENMASK(23, 0),
>   };
>   
>   REG_STRIDE_FIELDS(EV_CH_E_CNTXT_1, ev_ch_e_cntxt_1,