Messages in this thread | | | Date | Mon, 25 Sep 2017 20:19:44 -0700 (PDT) | Subject | Re: [PATCH v4 7/9] rocker: fix rocker_tlv_put_* functions for KASAN | From | David Miller <> |
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From: Arnd Bergmann <arnd@arndb.de> Date: Fri, 22 Sep 2017 23:29:18 +0200
> Inlining these functions creates lots of stack variables that each take > 64 bytes when KASAN is enabled, leading to this warning about potential > stack overflow: > > drivers/net/ethernet/rocker/rocker_ofdpa.c: In function 'ofdpa_cmd_flow_tbl_add': > drivers/net/ethernet/rocker/rocker_ofdpa.c:621:1: error: the frame size of 2752 bytes is larger than 1536 bytes [-Werror=frame-larger-than=] > > gcc-8 can now consolidate the stack slots itself, but on older versions > we get the same behavior by using a temporary variable that holds a > copy of the inline function argument. > > Cc: stable@vger.kernel.org > Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81715 > Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Applied.
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