From 73cef6cee71b7a1029e4951a97095c2e4fee4be7 Mon Sep 17 00:00:00 2001 From: =?utf8?q?J=C3=A9r=C3=A9my=20Lefaure?= Date: Wed, 1 Nov 2017 03:56:19 +1000 Subject: [PATCH] drm/nouveau/bios/init: use ARRAY_SIZE MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Using the ARRAY_SIZE macro improves the readability of the code. Also, it is useless to re-invent it. Found with Coccinelle with the following semantic patch: @r depends on (org || report)@ type T; T[] E; position p; @@ ( (sizeof(E)@p /sizeof(*E)) | (sizeof(E)@p /sizeof(E[...])) | (sizeof(E)@p /sizeof(T)) ) Reviewed-by: Thierry Reding Signed-off-by: Jérémy Lefaure Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c index b58ee99f7bfc..9cc10e438b3d 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/init.c @@ -36,6 +36,8 @@ #include #include +#include + #define bioslog(lvl, fmt, args...) do { \ nvkm_printk(init->subdev, lvl, info, "0x%08x[%c]: "fmt, \ init->offset, init_exec(init) ? \ @@ -2271,8 +2273,6 @@ static struct nvbios_init_opcode { [0xaa] = { init_reserved }, }; -#define init_opcode_nr (sizeof(init_opcode) / sizeof(init_opcode[0])) - int nvbios_exec(struct nvbios_init *init) { @@ -2281,7 +2281,8 @@ nvbios_exec(struct nvbios_init *init) init->nested++; while (init->offset) { u8 opcode = nvbios_rd08(bios, init->offset); - if (opcode >= init_opcode_nr || !init_opcode[opcode].exec) { + if (opcode >= ARRAY_SIZE(init_opcode) || + !init_opcode[opcode].exec) { error("unknown opcode 0x%02x\n", opcode); return -EINVAL; } -- 2.45.2