linux-kernel - Re: Build Warnings at arch/powerpc/

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Message-ID: <2a8656cf-8ff5-40fa-8ed8-efb1245fddf2@linux.ibm.com>
Date: Tue, 4 Mar 2025 17:11:19 +0530
From: Venkat Rao Bagalkote <venkat88@...ux.ibm.com>
To: Madhavan Srinivasan <maddy@...ux.ibm.com>, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org, Stephen Rothwell <sfr@...b.auug.org.au>,
        Michael Ellerman <mpe@...erman.id.au>
Subject: Re: Build Warnings at arch/powerpc/

Hello Maddy,


Git bisect is poinitng to d543c29a68989ac9e39e0b50cfe8b592d92a1599 as 
the first bad commit.

Git Bisect log:

[root@...-zzci-1 linux-next]# git bisect log
git bisect start
# status: waiting for both good and bad commits
# good: [7eb172143d5508b4da468ed59ee857c6e5e01da6] Linux 6.14-rc5
git bisect good 7eb172143d5508b4da468ed59ee857c6e5e01da6
# status: waiting for bad commit, 1 good commit known
# bad: [cd3215bbcb9d4321def93fea6cfad4d5b42b9d1d] Add linux-next 
specific files for 20250303
git bisect bad cd3215bbcb9d4321def93fea6cfad4d5b42b9d1d
# bad: [f084774e60dd4171a536e7f5506f90031e3a8c6f] Merge branch 
'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/ath/ath.git
git bisect bad f084774e60dd4171a536e7f5506f90031e3a8c6f
# good: [a57419b6b3df381d61367a3034910d1d8a197fd7] Merge branch 
'fs-next' of linux-next
git bisect good a57419b6b3df381d61367a3034910d1d8a197fd7
# good: [4350f3677257b7762a89901f81bc2e5ef84bc30f] Merge branch 
'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git
git bisect good 4350f3677257b7762a89901f81bc2e5ef84bc30f
# good: [e87700965abeddcdb84c9540107c69ce08b87431] Merge tag 
'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
git bisect good e87700965abeddcdb84c9540107c69ce08b87431
# bad: [0edfdc95d3459a6a9e9487a748b04c5b8fd2a69a] Merge branch 'master' 
of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-next.git
git bisect bad 0edfdc95d3459a6a9e9487a748b04c5b8fd2a69a
# good: [97fc6863637630cdf9a5e9ed2569fe9a7974434b] net: usb: cdc_mbim: 
fix Telit Cinterion FE990A name
git bisect good 97fc6863637630cdf9a5e9ed2569fe9a7974434b
# good: [bb7abf3049025f7e4ad91cff2d9fe8381a9278af] bpf: make 
state->dfs_depth < state->loop_entry->dfs_depth an invariant
git bisect good bb7abf3049025f7e4ad91cff2d9fe8381a9278af
# good: [0ba0ef012eba63652a50b318a7a3136963c37f74] selftests/bpf: Test 
bpf_usdt_arg_size() function
git bisect good 0ba0ef012eba63652a50b318a7a3136963c37f74
# good: [42c5e6d2accf31bba4cd31f8a742d5b9e19a7d28] selftests/bpf: Add 
selftests allowing cgroup prog pre-ordering
git bisect good 42c5e6d2accf31bba4cd31f8a742d5b9e19a7d28
# good: [b70c222ea9d66d51fc1f038f82e41ea17b38499f] Merge branch 
'bpf-next/master' into for-next
git bisect good b70c222ea9d66d51fc1f038f82e41ea17b38499f
# good: [cc18f482e8b60a2bcf2d7d57b48740bd0837fc04] xfrm: provide common 
xdo_dev_offload_ok callback implementation
git bisect good cc18f482e8b60a2bcf2d7d57b48740bd0837fc04
# bad: [d543c29a68989ac9e39e0b50cfe8b592d92a1599] Merge branch 
'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git
git bisect bad d543c29a68989ac9e39e0b50cfe8b592d92a1599
# good: [3ab37b090d1c458553a5268c7aaa8790ee759674] Merge branch 'main' 
of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next.git
git bisect good 3ab37b090d1c458553a5268c7aaa8790ee759674
# first bad commit: [d543c29a68989ac9e39e0b50cfe8b592d92a1599] Merge 
branch 'for-next' of 
git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git

On 04/03/25 11:43 am, Madhavan Srinivasan wrote:
>
> On 3/4/25 10:42 AM, Venkat Rao Bagalkote wrote:
>> Greetings!!
>>
>>
>> Observing build warnings with linux-next and powerpc repo's. Issue is currently not seen on mainline yet.
>>
>> PPC Repo: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git merge branch
>>
>> PPC Kernel Version: 6.14.0-rc4-g1304f486dbf1
>> next Repo: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master branch
>>
>> next Kernel Version: 6.14.0-rc5-next-20250303
>>
>>
>> On linux-next kernel issue got introduced b/w next-20250227 and next-20250303
>>
>>
>> Build Warnings:
>>
>> arch/powerpc/kvm/book3s_hv_rmhandlers.o: warning: objtool: .text+0xe84: intra_function_call not a direct call
>> arch/powerpc/crypto/ghashp8-ppc.o: warning: objtool: .text+0x22c: unannotated intra-function call
>> arch/powerpc/kernel/switch.o: warning: objtool: .text+0x4: intra_function_call not a direct call
>>
>>
> Can you please specific the compiler and compiler version you found this issue with
>
> maddy
GCC Version: gcc (GCC) 11.4.1 20231218 (Red Hat 11.4.1-3)
>
>> If you fix this issue, please add below tag.
>>
>>
>> Reported-By: Venkat Rao Bagalkote <venkat88@...ux.vnet.ibm.com>
>>
>>
>> Regards,
>>
>> Venkat.
>>
Regards,

Venkat.

>