On 7/14/25 09:59, Arnd Bergmann wrote: > From: Arnd Bergmann <arnd@xxxxxxxx> > > A number of functions in this file have large structures on the stack, > ccp_run_aes_gcm_cmd() being the worst, in particular when KASAN > is enabled on gcc: > > drivers/crypto/ccp/ccp-ops.c: In function 'ccp_run_sha_cmd': > drivers/crypto/ccp/ccp-ops.c:1833:1: error: the frame size of 1136 bytes is larger than 1024 bytes [-Werror=frame-larger-than=] > drivers/crypto/ccp/ccp-ops.c: In function 'ccp_run_aes_gcm_cmd': > drivers/crypto/ccp/ccp-ops.c:914:1: error: the frame size of 1632 bytes is larger than 1024 bytes [-Werror=frame-larger-than=] > > Avoid the issue by using dynamic memory allocation in the worst one > of these. > > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Acked-by: Tom Lendacky <thomas.lendacky@xxxxxxx> > --- > I'm not overly happy with this patch myself but couldn't come up > with anything better either. > > One alternative would be to turn off sanitizers here, but even without > those, the stack usage is fairly high, so that still feels like > papering over the problem. > ---
