[PATCH mptcp-next] mptcp: drop unneeded type casts for hmac

Geliang Tang posted 1 patch 2 years, 2 months ago
Patches applied successfully (tree, apply log)
git fetch https://github.com/multipath-tcp/mptcp_net-next tags/patchew/5ea29fecc4db9bc0a9a9d5d10e0f2a61d645d46c.1644228345.git.geliang.tang@suse.com
Maintainers: Matthieu Baerts <matthieu.baerts@tessares.net>, Mat Martineau <mathew.j.martineau@linux.intel.com>, Jakub Kicinski <kuba@kernel.org>, "David S. Miller" <davem@davemloft.net>
net/mptcp/options.c | 3 +--
net/mptcp/subflow.c | 4 +---
2 files changed, 2 insertions(+), 5 deletions(-)
[PATCH mptcp-next] mptcp: drop unneeded type casts for hmac
Posted by Geliang Tang 2 years, 2 months ago
Drop the unneeded type casts to 'unsigned long long' for printing out the
hmac values in add_addr_hmac_valid() and subflow_thmac_valid().

Signed-off-by: Geliang Tang <geliang.tang@suse.com>
---
 net/mptcp/options.c | 3 +--
 net/mptcp/subflow.c | 4 +---
 2 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/net/mptcp/options.c b/net/mptcp/options.c
index 7b615dc10897..670364cd455f 100644
--- a/net/mptcp/options.c
+++ b/net/mptcp/options.c
@@ -1085,8 +1085,7 @@ static bool add_addr_hmac_valid(struct mptcp_sock *msk,
 				      &mp_opt->addr);
 
 	pr_debug("msk=%p, ahmac=%llu, mp_opt->ahmac=%llu\n",
-		 msk, (unsigned long long)hmac,
-		 (unsigned long long)mp_opt->ahmac);
+		 msk, hmac, mp_opt->ahmac);
 
 	return hmac == mp_opt->ahmac;
 }
diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c
index 88ee94adc38c..485f00dcaf84 100644
--- a/net/mptcp/subflow.c
+++ b/net/mptcp/subflow.c
@@ -344,9 +344,7 @@ static bool subflow_thmac_valid(struct mptcp_subflow_context *subflow)
 
 	thmac = get_unaligned_be64(hmac);
 	pr_debug("subflow=%p, token=%u, thmac=%llu, subflow->thmac=%llu\n",
-		 subflow, subflow->token,
-		 (unsigned long long)thmac,
-		 (unsigned long long)subflow->thmac);
+		 subflow, subflow->token, thmac, subflow->thmac);
 
 	return thmac == subflow->thmac;
 }
-- 
2.31.1


Re: [PATCH mptcp-next] mptcp: drop unneeded type casts for hmac
Posted by Mat Martineau 2 years, 2 months ago
On Mon, 7 Feb 2022, Geliang Tang wrote:

> Drop the unneeded type casts to 'unsigned long long' for printing out the
> hmac values in add_addr_hmac_valid() and subflow_thmac_valid().
>

The type specifiers are expecting a 64 bit value (on 32 or 64 bit 
platforms), so there isn't a need for the casts that I can see. I pushed 
this to my git.kernel.org repo to trigger a kbuild run across a whole 
bunch of platforms, just in case.

Ok to merge to the export branch:

Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>


> Signed-off-by: Geliang Tang <geliang.tang@suse.com>
> ---
> net/mptcp/options.c | 3 +--
> net/mptcp/subflow.c | 4 +---
> 2 files changed, 2 insertions(+), 5 deletions(-)
>
> diff --git a/net/mptcp/options.c b/net/mptcp/options.c
> index 7b615dc10897..670364cd455f 100644
> --- a/net/mptcp/options.c
> +++ b/net/mptcp/options.c
> @@ -1085,8 +1085,7 @@ static bool add_addr_hmac_valid(struct mptcp_sock *msk,
> 				      &mp_opt->addr);
>
> 	pr_debug("msk=%p, ahmac=%llu, mp_opt->ahmac=%llu\n",
> -		 msk, (unsigned long long)hmac,
> -		 (unsigned long long)mp_opt->ahmac);
> +		 msk, hmac, mp_opt->ahmac);
>
> 	return hmac == mp_opt->ahmac;
> }
> diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c
> index 88ee94adc38c..485f00dcaf84 100644
> --- a/net/mptcp/subflow.c
> +++ b/net/mptcp/subflow.c
> @@ -344,9 +344,7 @@ static bool subflow_thmac_valid(struct mptcp_subflow_context *subflow)
>
> 	thmac = get_unaligned_be64(hmac);
> 	pr_debug("subflow=%p, token=%u, thmac=%llu, subflow->thmac=%llu\n",
> -		 subflow, subflow->token,
> -		 (unsigned long long)thmac,
> -		 (unsigned long long)subflow->thmac);
> +		 subflow, subflow->token, thmac, subflow->thmac);
>
> 	return thmac == subflow->thmac;
> }
> -- 
> 2.31.1
>
>
>

--
Mat Martineau
Intel

Re: [PATCH mptcp-next] mptcp: drop unneeded type casts for hmac
Posted by Matthieu Baerts 2 years, 2 months ago
Hi Geliang, Mat,

On 07/02/2022 11:06, Geliang Tang wrote:
> Drop the unneeded type casts to 'unsigned long long' for printing out the
> hmac values in add_addr_hmac_valid() and subflow_thmac_valid().

Thank you for your patch and the review!

Now in our tree (feat. for net-next) with Mat's RvB tag:

- d59d0b9cb2a7: mptcp: drop unneeded type casts for hmac
- Results: e98f6976dd01..a50f1ded83fa

Builds and tests are now in progress:

https://cirrus-ci.com/github/multipath-tcp/mptcp_net-next/export/20220208T094354
https://github.com/multipath-tcp/mptcp_net-next/actions/workflows/build-validation.yml?query=branch:export

Cheers,
Matt
-- 
Tessares | Belgium | Hybrid Access Solutions
www.tessares.net