linux-kernel - Re: [PATCH net] net: ipa: Use the correct value for IPA_STATUS

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Message-ID: <8d0e0272c80a594e7425ffcdd7714df7117edde5.camel@web.de>
Date:   Tue, 30 May 2023 20:36:18 +0200
From:   Bert Karwatzki <spasswolf@....de>
To:     Alex Elder <elder@...aro.org>,
        Simon Horman <simon.horman@...igine.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH net] net: ipa: Use the correct value for IPA_STATUS_SIZE

Am Dienstag, dem 30.05.2023 um 07:29 -0500 schrieb Alex Elder:
> On 5/30/23 4:10 AM, Bert Karwatzki wrote:
> > Am Dienstag, dem 30.05.2023 um 09:09 +0200 schrieb Simon Horman:
> > > On Sat, May 27, 2023 at 10:46:25PM +0200, Bert Karwatzki wrote:
> > > > commit b8dc7d0eea5a7709bb534f1b3ca70d2d7de0b42c introduced
> > > > IPA_STATUS_SIZE as a replacement for the size of the removed struct
> > > > ipa_status. sizeof(struct ipa_status) was sizeof(__le32[8]), use this
> > > > as IPA_STATUS_SIZE.
> 
> This is better, however it really isn't done in a way that's
> appropriate for a Linux kernel patch.  I will gladly help you
> get it right if you have the patience for that.  But I'm not
> going to say anything yet--until you say you want me to help
> you do this.  If you prefer, I can submit the patch for you.
> 
> The reason this is important is your commit is permanent, and
> just like code, commit messages are best if kept consistent
> and readable.  I also am offering to help you understand so
> you avoid any trouble next time you want to send a kernel patch.
> 
> Let me know what you prefer.
> 
>                                         -Alex
> 
> > > 

So here's v3 of the patch, done (I hope) in a way that is more standard
conforming.

>From e0dc802b5f6f41c0a388c7281aabe077a4e3c5a2 Mon Sep 17 00:00:00 2001
From: Bert Karwatzki <spasswolf@....de>
Date: Tue, 30 May 2023 20:23:29 +0200
Subject: [PATCH] net/ipa: Use correct value for IPA_STATUS_SIZE

IPA_STATUS_SIZE was introduced in commit b8dc7d0eea5a as a replacement
for the size of the removed struct ipa_status which had size
sizeof(__le32[8]). Use this value as IPA_STATUS_SIZE.

Signed-off-by: Bert Karwatzki <spasswolf@....de>
---
 drivers/net/ipa/ipa_endpoint.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ipa/ipa_endpoint.c b/drivers/net/ipa/ipa_endpoint.c
index 2ee80ed140b7..afa1d56d9095 100644
--- a/drivers/net/ipa/ipa_endpoint.c
+++ b/drivers/net/ipa/ipa_endpoint.c
@@ -119,7 +119,7 @@ enum ipa_status_field_id {
 };
 
 /* Size in bytes of an IPA packet status structure */
-#define IPA_STATUS_SIZE			sizeof(__le32[4])
+#define IPA_STATUS_SIZE			sizeof(__le32[8])
 
 /* IPA status structure decoder; looks up field values for a structure */
 static u32 ipa_status_extract(struct ipa *ipa, const void *data,
-- 
2.40.1


Bert Karwatzki