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From: Thomas Monjalon <thomas@monjalon.net>
To: Amit Prakash Shukla <amitprakashs@marvell.com>
Cc: Yuying Zhang <Yuying.Zhang@intel.com>,
	Beilei Xing <beilei.xing@intel.com>,
	stable@dpdk.org, dev@dpdk.org, jerinj@marvell.com,
	stable@dpdk.org
Subject: Re: [PATCH 1/2] net/i40e: compilation fix for GCC-12
Date: Thu, 06 Oct 2022 11:51:15 +0200	[thread overview]
Message-ID: <1833207.CQOukoFCf9@thomas> (raw)
In-Reply-To: <20220824140339.2581716-1-amitprakashs@marvell.com>

24/08/2022 16:03, Amit Prakash Shukla:
> GCC 12 raises the following warning:
> 
> meson --werror --buildtype=debugoptimized
> 	--cross-file config/x86/cross-mingw -Dexamples=helloworld build
> ninja -C build
> 
> In function 'i40e_hash_get_pattern_type',
>     inlined from 'i40e_hash_get_pattern_pctypes' at
> ../drivers/net/i40e/i40e_hash.c:520:8,
>     inlined from 'i40e_hash_parse_pattern_act' at
> ../drivers/net/i40e/i40e_hash.c:1147:9,
>     inlined from 'i40e_hash_parse' at
> ../drivers/net/i40e/i40e_hash.c:1181:9:
> ../drivers/net/i40e/i40e_hash.c:389:47:
> 	error: array subscript 53 is above array
> 	bounds of 'const uint64_t[53]'
> 	{aka 'const long long unsigned int[53]'} [-Werror=array-bounds]
>   389 |                 item_hdr = pattern_item_header[last_item_type];
>       |                            ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
> ../drivers/net/i40e/i40e_hash.c: In function 'i40e_hash_parse':
> ../drivers/net/i40e/i40e_hash.c:182:23: note: while referencing
> 'pattern_item_header'
>   182 | static const uint64_t pattern_item_header[] = {
>       |                       ^~~~~~~~~~~~~~~~~~~
> cc1: all warnings being treated as errors
> 
> Fixes: ef4c16fd9148 (net/i40e: refactor RSS flow)
> Cc: stable@dpdk.org
> 
> Signed-off-by: Amit Prakash Shukla <amitprakashs@marvell.com>

Sorry I did not notice this patch and I recently submitted one
which I will abandon.
It seems there was no reply from i40e maintainers after 6 weeks,
but I will apply anyway.

I will use my commit message:

    net/i40e: fix build with MinGW GCC 12
    
    When compiling with MinGW GCC 12,
    the rte_flow_item array is seen as read out of bound:
    
    net/i40e/i40e_hash.c:389:47: error:
    	array subscript 50 is above array bounds of ‘const uint64_t[50]’
    	{aka ‘const long long unsigned int[50]’} [-Werror=array-bounds]
    	389 | item_hdr = pattern_item_header[last_item_type];
    	    |            ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
    
    It seems the assert check done above this line has no impact.
    A real check is added to make the compiler happy.
    
    Fixes: ef4c16fd9148 ("net/i40e: refactor RSS flow")
    Cc: stable@dpdk.org




      parent reply	other threads:[~2022-10-06  9:51 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-23 10:57 [PATCH 1/3] " Amit Prakash Shukla
2022-08-23 10:57 ` [PATCH 2/3] net/qede/base: " Amit Prakash Shukla
2022-08-23 10:57 ` [PATCH 3/3] examples/ipsec-secgw: " Amit Prakash Shukla
2022-08-23 13:12   ` Akhil Goyal
2022-08-24 14:03 ` [PATCH 1/2] net/i40e: " Amit Prakash Shukla
2022-08-24 14:03   ` [PATCH 2/2] net/qede/base: " Amit Prakash Shukla
2022-10-06  9:52     ` Thomas Monjalon
2022-08-25  7:21   ` [PATCH 1/2] net/i40e: " Morten Brørup
2022-08-26  9:45   ` Amit Prakash Shukla
2022-08-26 10:32     ` Morten Brørup
2022-10-06  9:51   ` Thomas Monjalon [this message]

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