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Wysocki" , linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-mm@kvack.org Cc: Denis Efremov , Julia Lawall , Alex Dewar , linux-doc@vger.kernel.org Subject: [PATCH V3 0/8] sysfs: drivers core: Add and use sysfs_emit and sysfs_emit_at Date: Wed, 16 Sep 2020 13:40:37 -0700 Message-Id: X-Mailer: git-send-email 2.26.0 MIME-Version: 1.0 X-Rspamd-Queue-Id: 9B4AD1A4A0 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam05 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Output defects can exist in sysfs content using sprintf and snprintf. sprintf does not know the PAGE_SIZE maximum of the temporary buffer used for outputting sysfs content and it's possible to overrun the PAGE_SIZE buffer length. Add a generic sysfs_emit function that knows that the size of the temporary buffer and ensures that no overrun is done. Add a generic sysfs_emit_at function that can be used in multiple call situations that also ensures that no overrun is done. V2: Add drivers core conversions V3: Add a few more neatenings and conversions to drivers core Add mm hugetlb_report_node_meminfo conversion Joe Perches (8): sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output drivers core: Use sysfs_emit and sysfs_emit_at for show(device *...) functions drivers core: Remove strcat uses around sysfs_emit and neaten drivers core: Reindent a couple uses around sysfs_emit drivers core: Miscellaneous changes for sysfs_emit mm: and drivers core: Convert hugetlb_report_node_meminfo to sysfs_emit drivers core: Use sysfs_emit for shared_cpu_map_show and shared_cpu_list_show drivers core: node: Use a more typical macro definition style for ACCESS_ATTR Documentation/filesystems/sysfs.rst | 8 +- drivers/base/arch_topology.c | 2 +- drivers/base/bus.c | 2 +- drivers/base/cacheinfo.c | 49 ++-- drivers/base/class.c | 2 +- drivers/base/core.c | 59 +++-- drivers/base/cpu.c | 84 ++++--- drivers/base/dd.c | 3 +- drivers/base/devcoredump.c | 2 +- drivers/base/firmware_loader/fallback.c | 4 +- drivers/base/memory.c | 62 ++--- drivers/base/node.c | 306 ++++++++++++------------ drivers/base/platform.c | 17 +- drivers/base/power/sysfs.c | 160 ++++++++----- drivers/base/power/wakeup_stats.c | 17 +- drivers/base/soc.c | 64 +++-- drivers/base/topology.c | 10 +- fs/sysfs/file.c | 55 +++++ include/linux/hugetlb.h | 4 +- include/linux/sysfs.h | 15 ++ mm/hugetlb.c | 18 +- 21 files changed, 532 insertions(+), 411 deletions(-)