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mx.microsoft.com 1; spf=pass\n smtp.mailfrom=nvidia.com; dmarc=pass action=none header.from=nvidia.com;\n dkim=pass header.d=nvidia.com; arc=none" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com;\n s=selector2;\n h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck;\n bh=4xbAOul5b8jY2HHKd0/CR/Nj4YU7dqrPThGNTl0SCqM=;\n b=QVAkWKD2wW5d99kDS8SJUiOIf8sR9me6kIqMMvIeCQ1UM1bNvqmBKn3K4/S3xGxoOJ5b/yzxwG0LqSElNBby+lR5mGSuDoIGZ3oz8WSd2nIPfQzPSIkOmWm7roHsH20+iLPxjBs2JtpDoNP2njA9fpeokYHzlerpC4fivwrj/vujuSysfGSRKYRHJhgZ8NhT2WCDm/Y6WAQ9nDAZddc1HgDJJVkdnEkukg64rUltrjRbyEeI3VQbe3WKhpN/g5QyMwnWeCJ0wJF7noj8FSuaEHRDqDDDlgwsp05y92eLkAyRXeqt9GPOGco1DnG4fQ395mqRNm4iX+2OCOzhMTLMVw==", "From": "Yury Norov <ynorov@nvidia.com>", "To": "linux-kernel@vger.kernel.org,\n\t\"Christophe Leroy (CS GROUP)\" <chleroy@kernel.org>,\n\t\"David S. Miller\" <davem@davemloft.net>,\n\t\"Peter Zijlstra (Intel)\" <peterz@infradead.org>,\n\t\"Rafael J. Wysocki\" <rafael@kernel.org>,\n\tAlexander Shishkin <alexander.shishkin@linux.intel.com>,\n\tAndrew Lunn <andrew+netdev@lunn.ch>,\n\tAndrew Morton <akpm@linux-foundation.org>,\n\tAntoine Tenart <atenart@kernel.org>,\n\tChristian Brauner <brauner@kernel.org>,\n\tDaniel Lezcano <daniel.lezcano@linaro.org>,\n\tEric Dumazet <edumazet@google.com>,\n\tGeetha sowjanya <gakula@marvell.com>,\n\tIngo Molnar <mingo@kernel.org>,\n\tJakub Kicinski <kuba@kernel.org>,\n\tJames Clark <james.clark@linaro.org>,\n\tJerin Jacob <jerinj@marvell.com>,\n\tLinu Cherian <lcherian@marvell.com>,\n\tLukasz Luba <lukasz.luba@arm.com>,\n\tMadhavan Srinivasan <maddy@linux.ibm.com>,\n\tMichael Ellerman <mpe@ellerman.id.au>,\n\tMike Leach <mike.leach@linaro.org>,\n\tMoritz Fischer <mdf@kernel.org>,\n\tNicholas Piggin <npiggin@gmail.com>,\n\tPaolo Abeni <pabeni@redhat.com>,\n\tRasmus Villemoes <linux@rasmusvillemoes.dk>,\n\tSimon Horman <horms@kernel.org>,\n\tStanislav Fomichev <sdf@fomichev.me>,\n\tSubbaraya Sundeep <sbhatta@marvell.com>,\n\tSunil Goutham <sgoutham@marvell.com>,\n\tSuzuki K Poulose <suzuki.poulose@arm.com>,\n\tTom Rix <trix@redhat.com>,\n\tXu Yilun <yilun.xu@intel.com>,\n\tYajun Deng <yajun.deng@linux.dev>,\n\tYury Norov <yury.norov@gmail.com>,\n\tZhang Rui <rui.zhang@intel.com>,\n\thariprasad <hkelam@marvell.com>,\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 <ynorov@nvidia.com>", "Subject": "[PATCH 00/12] cleanup bitmaps printing in sysfs", "Date": "Thu, 19 Feb 2026 13:13:52 -0500", "Message-ID": "<20260219181407.290201-1-ynorov@nvidia.com>", "X-Mailer": "git-send-email 2.43.0", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain", "X-ClientProxiedBy": "BN0PR04CA0146.namprd04.prod.outlook.com\n (2603:10b6:408:ed::31) To PH0PR12MB8800.namprd12.prod.outlook.com\n (2603:10b6:510:26f::12)", 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"SpamAssassin 4.0.1 (2024-03-25) on lists.ozlabs.org" }, "content": "Bitmap API has a bitmap_print_to_pagebuf() function that is intended to\nprint bitmap into a human readable format, making sure that the output\nstring will not get big enough to cross the current page limit.\n\nSome drivers use this function immediately before passing the result to\nseq_printf() with no modification. This is useless because seq_pritf()\ntakes care of not overflowing the buffer by itself, and perfectly prints\nbitmaps with \"%*pb[l]\".\n\nThe first 6 patches of the series convert such bitmap_print_to_pagebuf()\nusers to just print the bitmap with seq_printf().\n\nPatch #7 adds (actually moves from net/p9 driver) a handy macro\nrest_of_page() and applies it globally.\n\nThe rest of the series switches all other users to scnprintf(\"%*pb[l]\"),\nso that users wont abuse kmalloc() + bitmap_print_to_pagebuf().\n\nPatches 1-6 may be applied individually, or together with the rest of\nthe series, at maintainers' discretion.\n\nYury Norov (12):\n powerpc/xive: simplify xive_spapr_debug_show()\n octeontx2-af: siplify rvu_debugfs\n thermal: intel: switch cpumask_get() to using\n cpumask_print_to_pagebuf()\n lib/prime_numbers: drop temporary buffer in dump_primes()\n bitmap: switch test to scnprintf(\"%*pbl\")\n bitmap: align test_bitmap output\n mm: add rest_of_page() macro\n coresight: don't use bitmap_print_to_pagebuf()\n fpga: m10bmc-sec: switch show_canceled_csk() to using scnprintf()\n net-sysfs: switch xps_queue_show() to using scnprintf()\n cpumask: switch cpumap_print_to_pagebuf() to using scnprintf()\n bitmap: drop bitmap_print_to_pagebuf()\n\n arch/arm64/kernel/patching.c | 4 +-\n arch/powerpc/lib/code-patching.c | 6 +--\n arch/powerpc/sysdev/xive/spapr.c | 12 +-----\n arch/riscv/kernel/sbi.c | 4 +-\n arch/s390/kvm/gaccess.c | 6 +--\n arch/x86/kvm/emulate.c | 4 +-\n drivers/block/null_blk/main.c | 6 +--\n drivers/fpga/intel-m10-bmc-sec-update.c | 3 +-\n drivers/gpu/drm/i915/gt/shmem_utils.c | 5 +--\n .../hwtracing/coresight/coresight-cti-sysfs.c | 33 +++++++--------\n drivers/md/dm-pcache/backing_dev.h | 2 +-\n .../marvell/octeontx2/af/rvu_debugfs.c | 28 +++----------\n drivers/net/ethernet/meta/fbnic/fbnic_tlv.c | 6 +--\n drivers/s390/net/qeth_core_main.c | 6 +--\n drivers/spi/spi-pl022.c | 3 +-\n drivers/spi/spi.c | 4 +-\n drivers/thermal/intel/intel_powerclamp.c | 3 +-\n fs/ext4/verity.c | 3 +-\n fs/f2fs/verity.c | 6 +--\n fs/fuse/dev.c | 4 +-\n fs/iomap/buffered-io.c | 2 +-\n fs/nfs/pagelist.c | 2 +-\n fs/remap_range.c | 3 +-\n fs/xfs/scrub/xfile.c | 3 +-\n include/crypto/scatterwalk.h | 2 +-\n include/linux/bitmap-str.h | 1 -\n include/linux/cpumask.h | 17 +-------\n include/linux/highmem.h | 24 +++++------\n include/linux/iomap.h | 2 +-\n include/linux/iov_iter.h | 3 +-\n include/linux/mm.h | 2 +\n kernel/events/ring_buffer.c | 2 +-\n lib/bitmap-str.c | 42 +++----------------\n lib/cpumask.c | 17 ++++++++\n lib/iov_iter.c | 5 +--\n lib/math/tests/prime_numbers_kunit.c | 6 +--\n lib/test_bitmap.c | 17 ++++----\n net/9p/trans_virtio.c | 6 ---\n net/core/net-sysfs.c | 2 +-\n sound/virtio/virtio_pcm_msg.c | 4 +-\n 40 files changed, 111 insertions(+), 199 deletions(-)" }