[PATCH 02/14] drm/amd/pm: Replace one-element array with flexible-array member in struct vi_dpm_table

From: Gustavo A. R. Silva
Date: Wed Oct 07 2020 - 11:57:29 EST


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].

Use a flexible-array member in struct vi_dpm_table instead of a
one-element array.

[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://www.kernel.org/doc/html/v5.9-rc1/process/deprecated.html#zero-length-and-one-element-arrays

Build-tested-by: kernel test robot <lkp@xxxxxxxxx>
Link: https://lore.kernel.org/lkml/5f7c433c.TTk9rnA+F58kyDUy%25lkp@xxxxxxxxx/
Signed-off-by: Gustavo A. R. Silva <gustavoars@xxxxxxxxxx>
---
drivers/gpu/drm/amd/pm/inc/hwmgr.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/pm/inc/hwmgr.h b/drivers/gpu/drm/amd/pm/inc/hwmgr.h
index a1dbfd5636e6..d68b547743e6 100644
--- a/drivers/gpu/drm/amd/pm/inc/hwmgr.h
+++ b/drivers/gpu/drm/amd/pm/inc/hwmgr.h
@@ -60,7 +60,7 @@ struct vi_dpm_level {

struct vi_dpm_table {
uint32_t count;
- struct vi_dpm_level dpm_level[1];
+ struct vi_dpm_level dpm_level[];
};

#define PCIE_PERF_REQ_REMOVE_REGISTRY 0
--
2.27.0