Commit 0ffba1fc authored by Chris Wilson's avatar Chris Wilson

drm/i915: Silence smatch for cmdparser

drivers/gpu/drm/i915/i915_cmd_parser.c:808:23: error: not an lvalue
drivers/gpu/drm/i915/i915_cmd_parser.c:811:23: error: not an lvalue
drivers/gpu/drm/i915/i915_cmd_parser.c:814:23: error: not an lvalue
drivers/gpu/drm/i915/i915_cmd_parser.c:808:23: error: not an lvalue
drivers/gpu/drm/i915/i915_cmd_parser.c:811:23: error: not an lvalue
drivers/gpu/drm/i915/i915_cmd_parser.c:814:23: error: not an lvalue
drivers/gpu/drm/i915/i915_cmd_parser.c:808:23: error: not an lvalue
drivers/gpu/drm/i915/i915_cmd_parser.c:811:23: error: not an lvalue
drivers/gpu/drm/i915/i915_cmd_parser.c:814:23: error: not an lvalue
drivers/gpu/drm/i915/i915_cmd_parser.c:808:23: error: not an lvalue
drivers/gpu/drm/i915/i915_cmd_parser.c:811:23: error: not an lvalue
drivers/gpu/drm/i915/i915_cmd_parser.c:814:23: error: not an lvalue

If we move the shift into each case not only do we kill the warning from
smatch, but we shrink the code slightly:

   text	   data	    bss	    dec	    hex	filename
1267906	  20587	   3168	1291661	 13b58d	before
1267890	  20587	   3168	1291645	 13b57d	after
Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Matthew Auld <matthew.william.auld@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171107154055.19460-1-chris@chris-wilson.co.ukReviewed-by: default avatarMatthew Auld <matthew.william.auld@gmail.com>
Reviewed-by: default avatarGabriel Krisman Bertazi <krisman@collabora.co.uk>
parent 5684514b
......@@ -798,22 +798,15 @@ struct cmd_node {
*/
static inline u32 cmd_header_key(u32 x)
{
u32 shift;
switch (x >> INSTR_CLIENT_SHIFT) {
default:
case INSTR_MI_CLIENT:
shift = STD_MI_OPCODE_SHIFT;
break;
return x >> STD_MI_OPCODE_SHIFT;
case INSTR_RC_CLIENT:
shift = STD_3D_OPCODE_SHIFT;
break;
return x >> STD_3D_OPCODE_SHIFT;
case INSTR_BC_CLIENT:
shift = STD_2D_OPCODE_SHIFT;
break;
return x >> STD_2D_OPCODE_SHIFT;
}
return x >> shift;
}
static int init_hash_table(struct intel_engine_cs *engine,
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment