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Thu, 27 Mar 2025 16:24:34 +0000 (GMT) Message-ID: <516febac-b2ba-48a0-83a4-ab259e972541@linux.ibm.com> Date: Thu, 27 Mar 2025 21:54:33 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [main-line]Build warnings on PowerPC system To: Madhavan Srinivasan , linuxppc-dev , LKML References: <61cf556c-4947-4bd6-af63-892fc0966dad@linux.ibm.com> <8797a1c4-dc58-4a85-bc51-a3d4131e7930@linux.ibm.com> <38653c58-a5c4-496f-9b52-e7bc3e447423@linux.ibm.com> Content-Language: en-GB From: Venkat Rao Bagalkote In-Reply-To: <38653c58-a5c4-496f-9b52-e7bc3e447423@linux.ibm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: EGuk4gJJi_iR4eRUC5ynX8DlPgy25Q9v X-Proofpoint-ORIG-GUID: EGuk4gJJi_iR4eRUC5ynX8DlPgy25Q9v X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1095,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-03-27_02,2025-03-26_02,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 clxscore=1015 impostorscore=0 priorityscore=1501 malwarescore=0 spamscore=0 phishscore=0 mlxlogscore=999 lowpriorityscore=0 suspectscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2502280000 definitions=main-2503270109 On 27/03/25 8:36 pm, Madhavan Srinivasan wrote: > > On 3/27/25 7:31 PM, Venkat Rao Bagalkote wrote: >> On 27/03/25 7:22 pm, Madhavan Srinivasan wrote: >>> On 3/27/25 12:33 AM, Venkat Rao Bagalkote wrote: >>>> Greetings!!! >>>> >>>> I see below build warnings while compiling mainline kernel on IBM Power9 system. >>>> >>>> Repo Link: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/ >>>> >>>> Head Commit: f6e0150b2003fb2b9265028a618aa1732b3edc8f >>>> >>>> Attached is the .config. >>>> >>>> Machine: IBM Power9 >>>> >>>> gcc version 11.5.0 >>> What is the ld version in your system. >> Please find the ld version below. >> >> GNU ld version 2.35.2-59.el9 > > ah ok that explains. Kindly can you try with this patch and let us know whether > this fixes the warning in your setup > > > diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper > index 1db60fe13802..09ceb5a42d81 100755 > --- a/arch/powerpc/boot/wrapper > +++ b/arch/powerpc/boot/wrapper > @@ -235,7 +235,7 @@ fi > # suppress some warnings in recent ld versions > nowarn="-z noexecstack" > if ! ld_is_lld; then > - if [ "$LD_VERSION" -ge "$(echo 2.39 | ld_version)" ]; then > + if [ "$LD_VERSION" -ge "$(echo 2.35 | ld_version)" ]; then > nowarn="$nowarn --no-warn-rwx-segments" > fi > fi Above change fixes the issue. No warnings observed. Thank you!! > >> >> Regards, >> >> Venkat. >> >>> Reason for asking is that currently with >>> >>> commit  579aee9fc594a ("powerpc: suppress some linker warnings in recent linker versions") >>> >>> ld version greater than >2.39, this warning is being suppressed. >>> >>> Maddy >>> >>>> Warnings: >>>> >>>> ld: warning: arch/powerpc/boot/zImage.epapr has a LOAD segment with RWX permissions >>>> ld: warning: arch/powerpc/boot/zImage.pseries has a LOAD segment with RWX permissions >>>> >>>> >>>> If you happen to fix this, please add below tag. >>>> >>>> >>>> Reported-by: Venkat Rao Bagalkote >>>> >>>> >>>> Regards, >>>> >>>> Venkat.