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From: Nathan Chancellor <natechancellor@gmail.com>
To: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Sakari Ailus <sakari.ailus@linux.intel.com>,
	linux-media@vger.kernel.org, devel@driverdev.osuosl.org,
	linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com,
	Nathan Chancellor <natechancellor@gmail.com>
Subject: [PATCH 4/7] media: atomisp: Remove unnecessary NULL checks in ia_css_pipe_load_extension
Date: Wed, 27 May 2020 00:11:47 -0700	[thread overview]
Message-ID: <20200527071150.3381228-5-natechancellor@gmail.com> (raw)
In-Reply-To: <20200527071150.3381228-1-natechancellor@gmail.com>

Clang warns:

../drivers/staging/media/atomisp/pci/sh_css.c:8537:14: warning: address
of 'pipe->output_stage' will always evaluate to 'true'
[-Wpointer-bool-conversion]
                if (&pipe->output_stage)
                ~~   ~~~~~~^~~~~~~~~~~~
../drivers/staging/media/atomisp/pci/sh_css.c:8545:14: warning: address
of 'pipe->vf_stage' will always evaluate to 'true'
[-Wpointer-bool-conversion]
                if (&pipe->vf_stage)
                ~~   ~~~~~~^~~~~~~~

output_stage and vf_stage are pointers in the middle of a struct, their
addresses cannot be NULL if pipe is not NULL and pipe is already checked
for NULL in this function. Simplify this if block.

Link: https://github.com/ClangBuiltLinux/linux/issues/1036
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
---
 drivers/staging/media/atomisp/pci/sh_css.c | 19 +++----------------
 1 file changed, 3 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/sh_css.c b/drivers/staging/media/atomisp/pci/sh_css.c
index d77432254a2c..b8626cdb2436 100644
--- a/drivers/staging/media/atomisp/pci/sh_css.c
+++ b/drivers/staging/media/atomisp/pci/sh_css.c
@@ -8533,22 +8533,9 @@ ia_css_pipe_load_extension(struct ia_css_pipe *pipe,
 	}
 
 	if (firmware->info.isp.type == IA_CSS_ACC_OUTPUT)
-	{
-		if (&pipe->output_stage)
-			append_firmware(&pipe->output_stage, firmware);
-		else {
-			IA_CSS_LEAVE_ERR_PRIVATE(IA_CSS_ERR_INTERNAL_ERROR);
-			return IA_CSS_ERR_INTERNAL_ERROR;
-		}
-	} else if (firmware->info.isp.type == IA_CSS_ACC_VIEWFINDER)
-	{
-		if (&pipe->vf_stage)
-			append_firmware(&pipe->vf_stage, firmware);
-		else {
-			IA_CSS_LEAVE_ERR_PRIVATE(IA_CSS_ERR_INTERNAL_ERROR);
-			return IA_CSS_ERR_INTERNAL_ERROR;
-		}
-	}
+		append_firmware(&pipe->output_stage, firmware);
+	else if (firmware->info.isp.type == IA_CSS_ACC_VIEWFINDER)
+		append_firmware(&pipe->vf_stage, firmware);
 	err = acc_load_extension(firmware);
 
 	IA_CSS_LEAVE_ERR_PRIVATE(err);
-- 
2.27.0.rc0


WARNING: multiple messages have this Message-ID (diff)
From: Nathan Chancellor <natechancellor@gmail.com>
To: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org,
	clang-built-linux@googlegroups.com,
	Sakari Ailus <sakari.ailus@linux.intel.com>,
	Nathan Chancellor <natechancellor@gmail.com>,
	linux-media@vger.kernel.org
Subject: [PATCH 4/7] media: atomisp: Remove unnecessary NULL checks in ia_css_pipe_load_extension
Date: Wed, 27 May 2020 00:11:47 -0700	[thread overview]
Message-ID: <20200527071150.3381228-5-natechancellor@gmail.com> (raw)
In-Reply-To: <20200527071150.3381228-1-natechancellor@gmail.com>

Clang warns:

../drivers/staging/media/atomisp/pci/sh_css.c:8537:14: warning: address
of 'pipe->output_stage' will always evaluate to 'true'
[-Wpointer-bool-conversion]
                if (&pipe->output_stage)
                ~~   ~~~~~~^~~~~~~~~~~~
../drivers/staging/media/atomisp/pci/sh_css.c:8545:14: warning: address
of 'pipe->vf_stage' will always evaluate to 'true'
[-Wpointer-bool-conversion]
                if (&pipe->vf_stage)
                ~~   ~~~~~~^~~~~~~~

output_stage and vf_stage are pointers in the middle of a struct, their
addresses cannot be NULL if pipe is not NULL and pipe is already checked
for NULL in this function. Simplify this if block.

Link: https://github.com/ClangBuiltLinux/linux/issues/1036
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
---
 drivers/staging/media/atomisp/pci/sh_css.c | 19 +++----------------
 1 file changed, 3 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/media/atomisp/pci/sh_css.c b/drivers/staging/media/atomisp/pci/sh_css.c
index d77432254a2c..b8626cdb2436 100644
--- a/drivers/staging/media/atomisp/pci/sh_css.c
+++ b/drivers/staging/media/atomisp/pci/sh_css.c
@@ -8533,22 +8533,9 @@ ia_css_pipe_load_extension(struct ia_css_pipe *pipe,
 	}
 
 	if (firmware->info.isp.type == IA_CSS_ACC_OUTPUT)
-	{
-		if (&pipe->output_stage)
-			append_firmware(&pipe->output_stage, firmware);
-		else {
-			IA_CSS_LEAVE_ERR_PRIVATE(IA_CSS_ERR_INTERNAL_ERROR);
-			return IA_CSS_ERR_INTERNAL_ERROR;
-		}
-	} else if (firmware->info.isp.type == IA_CSS_ACC_VIEWFINDER)
-	{
-		if (&pipe->vf_stage)
-			append_firmware(&pipe->vf_stage, firmware);
-		else {
-			IA_CSS_LEAVE_ERR_PRIVATE(IA_CSS_ERR_INTERNAL_ERROR);
-			return IA_CSS_ERR_INTERNAL_ERROR;
-		}
-	}
+		append_firmware(&pipe->output_stage, firmware);
+	else if (firmware->info.isp.type == IA_CSS_ACC_VIEWFINDER)
+		append_firmware(&pipe->vf_stage, firmware);
 	err = acc_load_extension(firmware);
 
 	IA_CSS_LEAVE_ERR_PRIVATE(err);
-- 
2.27.0.rc0

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  parent reply	other threads:[~2020-05-27  7:12 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-27  7:11 [PATCH 0/7] media: atomisp: Address several clang warnings Nathan Chancellor
2020-05-27  7:11 ` Nathan Chancellor
2020-05-27  7:11 ` [PATCH 1/7] media: atomisp: Clean up if block in sh_css_sp_init_stage Nathan Chancellor
2020-05-27  7:11   ` Nathan Chancellor
2020-05-27  7:11 ` [PATCH 2/7] media: atomisp: Remove second increment of count in atomisp_subdev_probe Nathan Chancellor
2020-05-27  7:11   ` Nathan Chancellor
2020-05-27  7:11 ` [PATCH 3/7] media: atomisp: Add stub for atomisp_mrfld_power Nathan Chancellor
2020-05-27  7:11   ` Nathan Chancellor
2020-05-27  7:11 ` Nathan Chancellor [this message]
2020-05-27  7:11   ` [PATCH 4/7] media: atomisp: Remove unnecessary NULL checks in ia_css_pipe_load_extension Nathan Chancellor
2020-05-27  7:11 ` [PATCH 5/7] media: atomisp: Remove unnecessary NULL check in atomisp_param Nathan Chancellor
2020-05-27  7:11   ` Nathan Chancellor
2020-05-27  7:11 ` [PATCH 6/7] media: atomisp: Avoid overflow in compute_blending Nathan Chancellor
2020-05-27  7:11   ` Nathan Chancellor
2020-05-27  7:11 ` [PATCH 7/7] media: atomisp: Remove binary_supports_input_format Nathan Chancellor
2020-05-27  7:11   ` Nathan Chancellor
2020-05-27  8:45 ` [PATCH 0/7] media: atomisp: Address several clang warnings Mauro Carvalho Chehab
2020-05-27  8:45   ` Mauro Carvalho Chehab
2020-05-27 16:45   ` Nathan Chancellor
2020-05-27 16:45     ` Nathan Chancellor
2020-05-27 17:20     ` Mauro Carvalho Chehab
2020-05-27 17:20       ` Mauro Carvalho Chehab

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