gpu: nvgpu: Disable trace_printk use by default

trace_printk() does an extra stringify operation before calling
do_trace_printk(). The string ends up unused. This has an impact
to kernel even if we never end up using trace_printk().

Disable use of trace_printk() and introduce a Kconfig option for
re-enabling it.

Change-Id: I2e1014f5231f2089d7dc3cb2539e3eb5f4d58361
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1295298
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.c b/drivers/gpu/nvgpu/gk20a/gk20a.c
index 6b026ee2..583e77b4 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.c
@@ -89,8 +89,8 @@
 
 #define GK20A_NUM_CDEVS 7
 
-#if defined(GK20A_DEBUG)
 u32 gk20a_dbg_mask = GK20A_DEFAULT_DBG_MASK;
+#ifdef CONFIG_GK20A_TRACE_PRINTK
 u32 gk20a_dbg_ftrace;
 #endif