{"id":2228574,"url":"http://patchwork.ozlabs.org/api/1.2/patches/2228574/?format=json","web_url":"http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260427044715.559137-4-sshegde@linux.ibm.com/","project":{"id":2,"url":"http://patchwork.ozlabs.org/api/1.2/projects/2/?format=json","name":"Linux PPC development","link_name":"linuxppc-dev","list_id":"linuxppc-dev.lists.ozlabs.org","list_email":"linuxppc-dev@lists.ozlabs.org","web_url":"https://github.com/linuxppc/wiki/wiki","scm_url":"https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git","webscm_url":"https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/","list_archive_url":"https://lore.kernel.org/linuxppc-dev/","list_archive_url_format":"https://lore.kernel.org/linuxppc-dev/{}/","commit_url_format":"https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}"},"msgid":"<20260427044715.559137-4-sshegde@linux.ibm.com>","list_archive_url":"https://lore.kernel.org/linuxppc-dev/20260427044715.559137-4-sshegde@linux.ibm.com/","date":"2026-04-27T04:47:14","name":"[v2,3/4] powerpc/perf: Use cpumask_intersects api for checking disable path","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"5ecfb2728daab4ad84f55270c4ade85344e772ca","submitter":{"id":87866,"url":"http://patchwork.ozlabs.org/api/1.2/people/87866/?format=json","name":"Shrikanth Hegde","email":"sshegde@linux.ibm.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260427044715.559137-4-sshegde@linux.ibm.com/mbox/","series":[{"id":501570,"url":"http://patchwork.ozlabs.org/api/1.2/series/501570/?format=json","web_url":"http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=501570","date":"2026-04-27T04:47:11","name":"powerpc: A few misc cpumask changes","version":2,"mbox":"http://patchwork.ozlabs.org/series/501570/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2228574/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2228574/checks/","tags":{},"related":[],"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linuxppc-dev@lists.ozlabs.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256\n header.s=pp1 header.b=E+uHM9ib;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org\n (client-ip=112.213.38.117; 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Any other CPU in that node, will bail out.\n\nInstead of using a temporary mask to find out if any cpu in the\nnode is visited or not, it is better to use the cpumask_intersects\napi to achieve the same.\n\nSimilarly a temporary cpumask is used to check if a core is already part\nof core_imc_cpumask. Use the same cpumask_intersects api there.\n\nSigned-off-by: Shrikanth Hegde \n---\n arch/powerpc/perf/imc-pmu.c | 6 ++----\n 1 file changed, 2 insertions(+), 4 deletions(-)","diff":"diff --git a/arch/powerpc/perf/imc-pmu.c b/arch/powerpc/perf/imc-pmu.c\nindex c1563b4eaa94..e3822f36c419 100644\n--- a/arch/powerpc/perf/imc-pmu.c\n+++ b/arch/powerpc/perf/imc-pmu.c\n@@ -421,7 +421,6 @@ static int ppc_nest_imc_cpu_offline(unsigned int cpu)\n static int ppc_nest_imc_cpu_online(unsigned int cpu)\n {\n \tconst struct cpumask *l_cpumask;\n-\tstatic struct cpumask tmp_mask;\n \tint res;\n \n \t/* Get the cpumask of this node */\n@@ -431,7 +430,7 @@ static int ppc_nest_imc_cpu_online(unsigned int cpu)\n \t * If this is not the first online CPU on this node, then\n \t * just return.\n \t */\n-\tif (cpumask_and(&tmp_mask, l_cpumask, &nest_imc_cpumask))\n+\tif (cpumask_intersects(l_cpumask, &nest_imc_cpumask))\n \t\treturn 0;\n \n \t/*\n@@ -647,14 +646,13 @@ static bool is_core_imc_mem_inited(int cpu)\n static int ppc_core_imc_cpu_online(unsigned int cpu)\n {\n \tconst struct cpumask *l_cpumask;\n-\tstatic struct cpumask tmp_mask;\n \tint ret = 0;\n \n \t/* Get the cpumask for this core */\n \tl_cpumask = cpu_sibling_mask(cpu);\n \n \t/* If a cpu for this core is already set, then, don't do anything */\n-\tif (cpumask_and(&tmp_mask, l_cpumask, &core_imc_cpumask))\n+\tif (cpumask_intersects(l_cpumask, &core_imc_cpumask))\n \t\treturn 0;\n \n \tif (!is_core_imc_mem_inited(cpu)) {\n","prefixes":["v2","3/4"]}