From a2e1407eb8405e59c56b2325d910a73fd917eb3e Mon Sep 17 00:00:00 2001 From: Michal Wajdeczko Date: Wed, 23 Jul 2025 19:56:39 +0200 Subject: [PATCH] drm/xe/guc: Clear whole g2h_fence during initialization The struct g2h_fence must be explicitly initializated using the g2h_fence_init() function to avoid trash values in its members, but we missed to update this helper function with the new member. To fix that and avoid any future mistakes, memset the whole struct first, then update remaining non-zero members. Fixes: 94de94d24ea8 ("drm/xe/guc: Cancel ongoing H2G requests when stopping CT") Signed-off-by: Michal Wajdeczko Cc: Matthew Brost Cc: Lukasz Laguna Reviewed-by: Matthew Brost Link: https://lore.kernel.org/r/20250723175639.206875-1-michal.wajdeczko@intel.com (cherry picked from commit 159afd92bae8153bdd8d8b34aea0d463fe19c978) Signed-off-by: Rodrigo Vivi --- drivers/gpu/drm/xe/xe_guc_ct.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/gpu/drm/xe/xe_guc_ct.c b/drivers/gpu/drm/xe/xe_guc_ct.c index b6acccfcd3514..3f4e6a46ff163 100644 --- a/drivers/gpu/drm/xe/xe_guc_ct.c +++ b/drivers/gpu/drm/xe/xe_guc_ct.c @@ -95,12 +95,8 @@ struct g2h_fence { static void g2h_fence_init(struct g2h_fence *g2h_fence, u32 *response_buffer) { + memset(g2h_fence, 0, sizeof(*g2h_fence)); g2h_fence->response_buffer = response_buffer; - g2h_fence->response_data = 0; - g2h_fence->response_len = 0; - g2h_fence->fail = false; - g2h_fence->retry = false; - g2h_fence->done = false; g2h_fence->seqno = ~0x0; } -- 2.47.2