From: Simon Horman <simon.horman@corigine.com>
To: Min-Hua Chen <minhuadotchen@gmail.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>,
Alexandre Torgue <alexandre.torgue@foss.st.com>,
Jose Abreu <joabreu@synopsys.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Maxime Coquelin <mcoquelin.stm32@gmail.com>,
netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] net: stmmac: compare p->des0 and p->des1 with __le32 type values
Date: Fri, 19 May 2023 13:39:47 +0200 [thread overview]
Message-ID: <ZGdgA9jMLJOi1W1+@corigine.com> (raw)
In-Reply-To: <20230519112509.40973-1-minhuadotchen@gmail.com>
On Fri, May 19, 2023 at 07:25:08PM +0800, Min-Hua Chen wrote:
> Use cpu_to_le32 to convert the constants to __le32 type
> before comparing them with p->des0 and p->des1 (they are __le32 type)
> and to fix following sparse warnings:
>
> drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c:110:23: sparse: warning: restricted __le32 degrades to integer
> drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c:110:50: sparse: warning: restricted __le32 degrades to integer
>
> Signed-off-by: Min-Hua Chen <minhuadotchen@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
> ---
> drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c
> index 13c347ee8be9..eefbeea04964 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c
> @@ -107,7 +107,8 @@ static int dwxgmac2_rx_check_timestamp(void *desc)
> ts_valid = !(rdes3 & XGMAC_RDES3_TSD) && (rdes3 & XGMAC_RDES3_TSA);
>
> if (likely(desc_valid && ts_valid)) {
> - if ((p->des0 == 0xffffffff) && (p->des1 == 0xffffffff))
> + if ((p->des0 == cpu_to_le32(0xffffffff)) &&
> + (p->des1 == cpu_to_le32(0xffffffff)))
nit: Sorry for not noticing this in v1.
There are unnecessary parentheses (both before and after this change).
next prev parent reply other threads:[~2023-05-19 11:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-19 11:25 [PATCH v2] net: stmmac: compare p->des0 and p->des1 with __le32 type values Min-Hua Chen
2023-05-19 11:39 ` Simon Horman [this message]
2023-05-19 11:46 ` [PATCH v2] net: stmmac: compare p->des0 and p->des1 with __le32 Min-Hua Chen
2023-05-19 13:17 ` Simon Horman
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