crypto: ccp - reduce stack usage in ccp_run_aes_gcm_cmd

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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@arndb.de>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

...

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Arnd Bergmann 2025-07-14 16:59:12 +02:00 • committed by Herbert Xu

parent 0fab5ee0d4

commit a71475582a

1 changed files with 86 additions and 77 deletions

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drivers/crypto/ccp/ccp-ops.c

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