Re: [PATCH] [v2] crypto: aes-generic - build with -Os on gcc-7+

On Wed, Jan 03, 2018 at 11:39:27PM +0100, Arnd Bergmann wrote: > While testing other changes, I discovered that gcc-7.2.1 produces badly > optimized code for aes_encrypt/aes_decrypt. This is especially true when > CONFIG_UBSAN_SANITIZE_ALL is enabled, where it leads to extremely > large stack usage

Re: [PATCH] [v2] crypto: aes-generic - build with -Os on gcc-7+

On 3 January 2018 at 22:39, Arnd Bergmann wrote: > While testing other changes, I discovered that gcc-7.2.1 produces badly > optimized code for aes_encrypt/aes_decrypt. This is especially true when > CONFIG_UBSAN_SANITIZE_ALL is enabled, where it leads to extremely > large stack usage that in turn

[PATCH] [v2] crypto: aes-generic - build with -Os on gcc-7+

While testing other changes, I discovered that gcc-7.2.1 produces badly optimized code for aes_encrypt/aes_decrypt. This is especially true when CONFIG_UBSAN_SANITIZE_ALL is enabled, where it leads to extremely large stack usage that in turn might cause kernel stack overflows: crypto/aes_generic.c