Replace use of snprintf() with scnprintf() in order to adhere to the rules in Documentation/filesystems/sysfs.txt, as per: show() must not use snprintf() when formatting the value to be returned to user space. If you can guarantee that an overflow will never happen you can use sprintf() otherwise you must use scnprintf(). Also resolve the following Coccinelle warnings, for example: drivers/pci/p2pdma.c:69:8-16: WARNING: use scnprintf or sprintf drivers/pci/p2pdma.c:78:8-16: WARNING: use scnprintf or sprintf drivers/pci/p2pdma.c:56:8-16: WARNING: use scnprintf or sprintf The Coccinelle warning was added in commit abfc19ff202d ("coccinelle: api: add device_attr_show script"). There is no change to the functionality. Related: https://patchwork.kernel.org/patch/9946759/#20969333 https://lwn.net/Articles/69419 Krzysztof Wilczyński (3): PCI: Replace use of snprintf() with scnprintf() in resource_alignment_show() PCI: sysfs: Replace use of snprintf() with scnprintf() in driver_override_show() PCI/P2PDMA: Replace use of snprintf() with scnprintf() in show() functions drivers/pci/p2pdma.c | 8 ++++---- drivers/pci/pci-sysfs.c | 2 +- drivers/pci/pci.c | 2 +- 3 files changed, 6 insertions(+), 6 deletions(-) -- 2.28.0