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Miller\" ,\n\t\"Peter Zijlstra (Intel)\" ,\n\t\"Rafael J. Wysocki\" ,\n\tAlexander Shishkin ,\n\tAndrew Lunn ,\n\tAndrew Morton ,\n\tAntoine Tenart ,\n\tChristian Brauner ,\n\tDaniel Lezcano ,\n\tEric Dumazet ,\n\tGeetha sowjanya ,\n\tIngo Molnar ,\n\tJakub Kicinski ,\n\tJames Clark ,\n\tJerin Jacob ,\n\tLinu Cherian ,\n\tLukasz Luba ,\n\tMadhavan Srinivasan ,\n\tMichael Ellerman ,\n\tMike Leach ,\n\tMoritz Fischer ,\n\tNicholas Piggin ,\n\tPaolo Abeni ,\n\tRasmus Villemoes ,\n\tSimon Horman ,\n\tStanislav Fomichev ,\n\tSubbaraya Sundeep ,\n\tSunil Goutham ,\n\tSuzuki K Poulose ,\n\tTom Rix ,\n\tXu Yilun ,\n\tYajun Deng ,\n\tYury Norov ,\n\tZhang Rui ,\n\thariprasad ,\n\tcoresight@lists.linaro.org,\n\tlinux-arm-kernel@lists.infradead.org,\n\tlinux-fpga@vger.kernel.org,\n\tlinux-pm@vger.kernel.org,\n\tlinuxppc-dev@lists.ozlabs.org,\n\tnetdev@vger.kernel.org","Cc":"Yury Norov ","Subject":"[PATCH 01/12] powerpc/xive: simplify xive_spapr_debug_show()","Date":"Thu, 19 Feb 2026 13:13:53 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f5ffa124-6d32-4bdb-71af-08de6fe2af4b","X-MS-Exchange-CrossTenant-AuthSource":"PH0PR12MB8800.namprd12.prod.outlook.com","X-MS-Exchange-CrossTenant-AuthAs":"Internal","X-MS-Exchange-CrossTenant-OriginalArrivalTime":"19 Feb 2026 18:14:12.9455\n (UTC)","X-MS-Exchange-CrossTenant-FromEntityHeader":"Hosted","X-MS-Exchange-CrossTenant-Id":"43083d15-7273-40c1-b7db-39efd9ccc17a","X-MS-Exchange-CrossTenant-MailboxType":"HOSTED","X-MS-Exchange-CrossTenant-UserPrincipalName":"\n 8C1LHg5Rb0BOhJLNkhDY3jIKII5Fo3c716Iuc53/LvPkAID6QQo2zT94M1AKZN93CxKgLDvpejuTra7TO6xR0g==","X-MS-Exchange-Transport-CrossTenantHeadersStamped":"IA0PR12MB7674","X-Spam-Status":"No, score=-0.2 required=3.0 tests=ARC_SIGNED,ARC_VALID,\n\tDKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,\n\tSPF_HELO_PASS,SPF_PASS autolearn=disabled version=4.0.1 OzLabs 8","X-Spam-Checker-Version":"SpamAssassin 4.0.1 (2024-03-25) on lists.ozlabs.org"},"content":"The function creates temporary buffer to convert xibm->bitmap to a\nhuman-readable list before passing it to seq_printf. Drop it and print\nthe list in seq_printf() directly with the \"%*pbl\" specifier.\n\nSigned-off-by: Yury Norov \n---\n arch/powerpc/sysdev/xive/spapr.c | 12 ++----------\n 1 file changed, 2 insertions(+), 10 deletions(-)","diff":"diff --git a/arch/powerpc/sysdev/xive/spapr.c b/arch/powerpc/sysdev/xive/spapr.c\nindex 5aedbe3e8e6a..f818299579b1 100644\n--- a/arch/powerpc/sysdev/xive/spapr.c\n+++ b/arch/powerpc/sysdev/xive/spapr.c\n@@ -667,17 +667,9 @@ static void xive_spapr_sync_source(u32 hw_irq)\n static int xive_spapr_debug_show(struct seq_file *m, void *private)\n {\n \tstruct xive_irq_bitmap *xibm;\n-\tchar *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);\n \n-\tif (!buf)\n-\t\treturn -ENOMEM;\n-\n-\tlist_for_each_entry(xibm, &xive_irq_bitmaps, list) {\n-\t\tmemset(buf, 0, PAGE_SIZE);\n-\t\tbitmap_print_to_pagebuf(true, buf, xibm->bitmap, xibm->count);\n-\t\tseq_printf(m, \"bitmap #%d: %s\", xibm->count, buf);\n-\t}\n-\tkfree(buf);\n+\tlist_for_each_entry(xibm, &xive_irq_bitmaps, list)\n+\t\tseq_printf(m, \"bitmap #%d: %*pbl\\n\", xibm->count, xibm->count, xibm->bitmap);\n \n \treturn 0;\n }\n","prefixes":["01/12"]}