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Mon, 8 Aug 2022 11:49:39 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 9709411C050; Mon, 8 Aug 2022 11:49:35 +0000 (GMT) Received: from li-c3569c4c-1ef8-11b2-a85c-ee139cda3133.ibm.com.com (unknown [9.43.59.85]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTP; Mon, 8 Aug 2022 11:49:35 +0000 (GMT) From: Sathvika Vasireddy To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH 04/16] powerpc: curb objtool unannotated intra-function call warnings Date: Mon, 8 Aug 2022 17:18:56 +0530 Message-Id: <20220808114908.240813-5-sv@linux.ibm.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220808114908.240813-1-sv@linux.ibm.com> References: <20220808114908.240813-1-sv@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: jhiN_B0Yw_UPen6kxYjVCe8qXfDsSspr X-Proofpoint-ORIG-GUID: zwfULNGLFCnYmUxCRkbvkAwKMZznbkGL X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.883,Hydra:6.0.517,FMLib:17.11.122.1 definitions=2022-08-08_08,2022-08-05_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 clxscore=1015 priorityscore=1501 phishscore=0 suspectscore=0 malwarescore=0 mlxscore=0 adultscore=0 spamscore=0 mlxlogscore=956 bulkscore=0 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2206140000 definitions=main-2208080057 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peterz@infradead.org, npiggin@gmail.com, linux-kernel@vger.kernel.org, aik@ozlabs.ru, mingo@redhat.com, sv@linux.ibm.com, rostedt@goodmis.org, jpoimboe@redhat.com, naveen.n.rao@linux.vnet.ibm.com, mbenes@suse.cz, chenzhongjin@huawei.com, linux-arm-kernel@lists.infradead.org Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" objtool throws the following unannotated intra-function call warnings: arch/powerpc/kernel/entry_64.o: warning: objtool: .text+0x4: unannotated intra-function call arch/powerpc/kvm/book3s_hv_rmhandlers.o: warning: objtool: .text+0xe64: unannotated intra-function call arch/powerpc/kvm/book3s_hv_rmhandlers.o: warning: objtool: .text+0xee4: unannotated intra-function call Fix these warnings by annotating intra-function call, using ANNOTATE_INTRA_FUNCTION_CALL macro, to indicate that the branch targets are valid. Signed-off-by: Sathvika Vasireddy --- arch/powerpc/kernel/entry_64.S | 2 ++ arch/powerpc/kvm/book3s_hv_rmhandlers.S | 3 +++ 2 files changed, 5 insertions(+) diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index 01ace4c56104..fb444bc64f3f 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -14,6 +14,7 @@ * code, and exception/interrupt return code for PowerPC. */ +#include #include #include #include @@ -73,6 +74,7 @@ flush_branch_caches: // Flush the link stack .rept 64 + ANNOTATE_INTRA_FUNCTION_CALL bl .+4 .endr b 1f diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index de91118df0c5..ea39a0cf591a 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -30,6 +30,7 @@ #include #include #include +#include /* Values in HSTATE_NAPPING(r13) */ #define NAPPING_CEDE 1 @@ -1523,12 +1524,14 @@ kvm_flush_link_stack: /* Flush the link stack. On Power8 it's up to 32 entries in size. */ .rept 32 + ANNOTATE_INTRA_FUNCTION_CALL bl .+4 .endr /* And on Power9 it's up to 64. */ BEGIN_FTR_SECTION .rept 32 + ANNOTATE_INTRA_FUNCTION_CALL bl .+4 .endr END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)