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authorArnd Bergmann <arnd@arndb.de>2017-07-14 14:07:01 +0200
committerDavid S. Miller <davem@davemloft.net>2017-07-14 09:03:11 -0700
commit73066f6c53fea76f95caadd70d802d24db747303 (patch)
tree3853f883521d905f711feac2333db182b4fa8edf /Documentation/crc32.txt
parent45e0b4b3d532ea67bf90701e6162f31855ab3c98 (diff)
downloadlinux-73066f6c53fea76f95caadd70d802d24db747303.tar.bz2
net: niu: fix format string overflow warning:
We get a warning for the port_name string that might be longer than six characters if we had more than 10 ports: drivers/net/ethernet/sun/niu.c: In function 'niu_put_parent': drivers/net/ethernet/sun/niu.c:9563:21: error: '%d' directive writing between 1 and 3 bytes into a region of size 2 [-Werror=format-overflow=] sprintf(port_name, "port%d", port); ^~~~~~~~ drivers/net/ethernet/sun/niu.c:9563:21: note: directive argument in the range [0, 255] drivers/net/ethernet/sun/niu.c:9563:2: note: 'sprintf' output between 6 and 8 bytes into a destination of size 6 sprintf(port_name, "port%d", port); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/sun/niu.c: In function 'niu_pci_init_one': drivers/net/ethernet/sun/niu.c:9538:22: error: '%d' directive writing between 1 and 3 bytes into a region of size 2 [-Werror=format-overflow=] sprintf(port_name, "port%d", port); ^~~~~~~~ drivers/net/ethernet/sun/niu.c:9538:22: note: directive argument in the range [0, 255] drivers/net/ethernet/sun/niu.c:9538:3: note: 'sprintf' output between 6 and 8 bytes into a destination of size 6 While we know that the port number is small, there is no harm in making the format string two bytes longer to avoid the warning. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
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