On Mon, 2019-06-17 at 11:55 -0400, Mimi Zohar wrote: > On Mon, 2019-06-17 at 13:20 +0200, Arnd Bergmann wrote: > > On 32-bit ARM, we get a warning about excessive stack usage when > > building with clang. > > > > security/integrity/ima/ima_crypto.c:504:5: error: stack frame size > > of 1152 bytes in function 'ima_calc_field_array_hash' [-Werror,- > > Wframe-larger-than=] > > I'm definitely not seeing this. Is this problem a result of non > upstreamed patches? For sha1, currently the only possible hash > algorithm, I'm seeing 664. Every time a measurement is added to the measurement list, the memory would be allocated/freed. The frequency of new measurements is policy dependent. For performance reasons, I'd prefer if the allocation remains on the stack. Mimi
