From 5224f79096170bf7b92cc8fe42a12f44b91e5f62 Mon Sep 17 00:00:00 2001 From: Gustavo A. R. Silva Date: Mon, 14 Feb 2022 19:11:44 -0600 Subject: treewide: Replace zero-length arrays with flexible-array members There is a regular need in the kernel to provide a way to declare having a dynamically sized set of trailing elements in a structure. Kernel code should always use “flexible array members”[1] for these cases. The older style of one-element or zero-length arrays should no longer be used[2]. This code was transformed with the help of Coccinelle: (next-20220214$ spatch --jobs $(getconf _NPROCESSORS_ONLN) --sp-file script.cocci --include-headers --dir . > output.patch) @@ identifier S, member, array; type T1, T2; @@ struct S { ... T1 member; T2 array[ - 0 ]; }; UAPI and wireless changes were intentionally excluded from this patch and will be sent out separately. [1] https://en.wikipedia.org/wiki/Flexible_array_member [2] https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays Link: https://github.com/KSPP/linux/issues/78 Reviewed-by: Kees Cook Signed-off-by: Gustavo A. R. Silva --- drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c | 2 +- drivers/gpu/drm/nouveau/include/nvfw/hs.h | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/gpu') diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c index 1a1edae67e4e..3acee0060e23 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c +++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c @@ -51,7 +51,7 @@ struct __guc_ads_blob { struct guc_gt_system_info system_info; struct guc_engine_usage engine_usage; /* From here on, location is dynamic! Refer to above diagram. */ - struct guc_mmio_reg regset[0]; + struct guc_mmio_reg regset[]; } __packed; static u32 guc_ads_regset_size(struct intel_guc *guc) diff --git a/drivers/gpu/drm/nouveau/include/nvfw/hs.h b/drivers/gpu/drm/nouveau/include/nvfw/hs.h index 64d0d32200c2..b53bbc4cd130 100644 --- a/drivers/gpu/drm/nouveau/include/nvfw/hs.h +++ b/drivers/gpu/drm/nouveau/include/nvfw/hs.h @@ -23,7 +23,7 @@ struct nvfw_hs_load_header { u32 data_dma_base; u32 data_size; u32 num_apps; - u32 apps[0]; + u32 apps[]; }; const struct nvfw_hs_load_header * -- cgit v1.2.3