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drm/nouveau: disp: Use __member_size() helper

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Use __member_size() to get the size of the flex-array member at compile
time, instead of the convoluted expression `__struct_size(p) - sizeof(*p)`

Link: https://lore.kernel.org/r/aAe5eNDnRyGnxLMX@kspp
Reviewed-by: Kees Cook <kees@kernel.org>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
This commit is contained in:
Gustavo A. R. Silva
2025-04-22 09:44:56 -06:00
committed by Danilo Krummrich
parent a3707f53eb
commit b7435cf2d9
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/nouveau/dispnv50/disp.c
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@@ -776,7 +776,7 @@ nv50_hdmi_enable(struct drm_encoder *encoder, struct nouveau_crtc *nv_crtc,
const u8 rekey = 56; /* binary driver, and tegra, constant */
u32 max_ac_packet;
DEFINE_RAW_FLEX(struct nvif_outp_infoframe_v0, args, data, 17);
const u8 data_len = __struct_size(args) - sizeof(*args);
const u8 data_len = __member_size(args->data);
int ret, size;
max_ac_packet = mode->htotal - mode->hdisplay;