Hello,
I add a new header, linux/overflow-arith.h, as the central place to add
overflow and wrap-around checking functions. The reason I am doing so
is that it can make use of compiler supported builtin functions which
can leverage hardware.
As I need this for a fix in the ipv6 stack, which is also included in
this series, I propose to add it sooner than later over Davem's net
tree. This is also the reason why I start slowly with only the one
function I need at this time.
Thanks for reviewing!
Hannes Frederic Sowa (2):
overflow-arith: begin to add support for overflow builtin functions
ipv6: protect mtu calculation of wrap-around and infinite loop by
rounding issues
include/linux/compiler-gcc.h | 4 ++++
include/linux/overflow-arith.h | 18 ++++++++++++++++++
net/ipv6/ip6_output.c | 6 +++++-
3 files changed, 27 insertions(+), 1 deletion(-)
create mode 100644 include/linux/overflow-arith.h
--
2.4.3
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
