Messages in this thread | | | From | Hannes Frederic Sowa <> | Subject | [PATCH net RESEND 0/2] overflow-arith: begin to add support for overflow builtins functions | Date | Fri, 16 Oct 2015 11:32:41 +0200 |
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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
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