On 6/5/25 3:35 PM, Philippe Mathieu-Daudé wrote:
tpm_emulator_ctrlcmd() is not in hot path. Use the heap instead of the stack, removing the g_alloca() call. Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org>
Reviewed-by: Stefan Berger <stef...@linux.ibm.com>
--- backends/tpm/tpm_emulator.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/backends/tpm/tpm_emulator.c b/backends/tpm/tpm_emulator.c index 43d350e895d..4a234ab2c0b 100644 --- a/backends/tpm/tpm_emulator.c +++ b/backends/tpm/tpm_emulator.c @@ -129,11 +129,11 @@ static int tpm_emulator_ctrlcmd(TPMEmulator *tpm, unsigned long cmd, void *msg, CharBackend *dev = &tpm->ctrl_chr; uint32_t cmd_no = cpu_to_be32(cmd); ssize_t n = sizeof(uint32_t) + msg_len_in; - uint8_t *buf = NULL; ptm_res res;WITH_QEMU_LOCK_GUARD(&tpm->mutex) {- buf = g_alloca(n); + g_autofree uint8_t *buf = g_malloc(n); + memcpy(buf, &cmd_no, sizeof(cmd_no)); memcpy(buf + sizeof(cmd_no), msg, msg_len_in);
