linux-kernel - [PATCH 2/3] drm/msm: clean up fault injection usage

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Message-Id: <20240813121237.2382534-2-jani.nikula@intel.com>
Date: Tue, 13 Aug 2024 15:12:36 +0300
From: Jani Nikula <jani.nikula@...el.com>
To: linux-kernel@...r.kernel.org
Cc: intel-xe@...ts.freedesktop.org,
	linux-arm-msm@...r.kernel.org,
	dri-devel@...ts.freedesktop.org,
	akinobu.mita@...il.com,
	akpm@...ux-foundation.org,
	lucas.demarchi@...el.com,
	rodrigo.vivi@...el.com,
	thomas.hellstrom@...ux.intel.com,
	robdclark@...il.com,
	quic_abhinavk@...cinc.com,
	dmitry.baryshkov@...aro.org,
	jani.nikula@...el.com
Subject: [PATCH 2/3] drm/msm: clean up fault injection usage

With the proper stubs in place in linux/fault-inject.h, we can remove a
bunch of conditional compilation for CONFIG_FAULT_INJECTION=n.

Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Akinobu Mita <akinobu.mita@...il.com>
Cc: Rob Clark <robdclark@...il.com>
Cc: Abhinav Kumar <quic_abhinavk@...cinc.com>
Cc: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Signed-off-by: Jani Nikula <jani.nikula@...el.com>
---
 drivers/gpu/drm/msm/msm_debugfs.c | 2 --
 drivers/gpu/drm/msm/msm_drv.c     | 2 --
 drivers/gpu/drm/msm/msm_drv.h     | 4 ----
 3 files changed, 8 deletions(-)

diff --git a/drivers/gpu/drm/msm/msm_debugfs.c b/drivers/gpu/drm/msm/msm_debugfs.c
index 4494f6d1c7cb..7ab607252d18 100644
--- a/drivers/gpu/drm/msm/msm_debugfs.c
+++ b/drivers/gpu/drm/msm/msm_debugfs.c
@@ -357,12 +357,10 @@ void msm_debugfs_init(struct drm_minor *minor)
 	if (priv->kms && priv->kms->funcs->debugfs_init)
 		priv->kms->funcs->debugfs_init(priv->kms, minor);
 
-#ifdef CONFIG_FAULT_INJECTION
 	fault_create_debugfs_attr("fail_gem_alloc", minor->debugfs_root,
 				  &fail_gem_alloc);
 	fault_create_debugfs_attr("fail_gem_iova", minor->debugfs_root,
 				  &fail_gem_iova);
-#endif
 }
 #endif
 
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 9c33f4e3f822..6938410f4fc7 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -58,10 +58,8 @@ static bool modeset = true;
 MODULE_PARM_DESC(modeset, "Use kernel modesetting [KMS] (1=on (default), 0=disable)");
 module_param(modeset, bool, 0600);
 
-#ifdef CONFIG_FAULT_INJECTION
 DECLARE_FAULT_ATTR(fail_gem_alloc);
 DECLARE_FAULT_ATTR(fail_gem_iova);
-#endif
 
 static int msm_drm_uninit(struct device *dev)
 {
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index be016d7b4ef1..9b953860131b 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -33,12 +33,8 @@
 #include <drm/msm_drm.h>
 #include <drm/drm_gem.h>
 
-#ifdef CONFIG_FAULT_INJECTION
 extern struct fault_attr fail_gem_alloc;
 extern struct fault_attr fail_gem_iova;
-#else
-#  define should_fail(attr, size) 0
-#endif
 
 struct msm_kms;
 struct msm_gpu;
-- 
2.39.2