Commit f7a79bdc authored by Gustavo A. R. Silva's avatar Gustavo A. R. Silva Committed by Rodrigo Vivi
Browse files

drm/i915/guc: Replace zero-length arrays with flexible-array members 

Zero-length arrays are deprecated[1] and we are moving towards
adopting C99 flexible-array members, instead. So, replace zero-length
arrays in a couple of structures (three, actually) with flex-array
members.

This helps with the ongoing efforts to tighten the FORTIFY_SOURCE
routines on memcpy() and help us make progress towards globally
enabling -fstrict-flex-arrays=3 [2].

Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays [1]
Link: https://gcc.gnu.org/pipermail/gcc-patches/2022-October/602902.html [2]
Link: https://github.com/KSPP/linux/issues/78


Signed-off-by: default avatarGustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: default avatarRodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Y72WBTUmh9r1lvKN@work
parent 3e95263d

drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h

+3 −3
Original line number Diff line number Diff line
@@ -73,7 +73,7 @@ struct guc_debug_capture_list_header { 


struct guc_debug_capture_list {

	struct guc_debug_capture_list_header header;

	struct guc_mmio_reg regs[0];

	struct guc_mmio_reg regs[];

} __packed;



/**
@@ -125,7 +125,7 @@ struct guc_state_capture_header_t { 


struct guc_state_capture_t {

	struct guc_state_capture_header_t header;

	struct guc_mmio_reg mmio_entries[0];

	struct guc_mmio_reg mmio_entries[];

} __packed;



enum guc_capture_group_types {
@@ -145,7 +145,7 @@ struct guc_state_capture_group_header_t { 
/* this is the top level structure where an error-capture dump starts */

struct guc_state_capture_group_t {

	struct guc_state_capture_group_header_t grp_header;

	struct guc_state_capture_t capture_entries[0];

	struct guc_state_capture_t capture_entries[];

} __packed;



/**