[v2] media: mtk_jpeg_core: avoid unused-variable warning

Commit Message

Arnd Bergmann June 1, 2023, 9:37 p.m. UTC

From: Arnd Bergmann <[e-mail]>

The mtk8195_jpegenc_drvdata object was added outside of an #ifdef causing
a harmless build warning.

drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c:1879:32: error: 'mtk8195_jpegenc_drvdata' defined but not used [-Werror=unused-variable]
 1879 | static struct mtk_jpeg_variant mtk8195_jpegenc_drvdata = {
      |                                ^~~~~~~~~~~~~~~~~~~~~~~

A follow-up patch moved it inside of an #ifdef, which caused more
warnings, and a third patch ended up adding even more #ifdefs. These
were all bogus, since the actual problem here is the incorrect use
of of_ptr(). Since the driver (like any other modern platform driver)
only works in combination with CONFIG_OF, there is no point in hiding
the reference, so just remove that along with all the pointless #ifdef
checks in the driver.

This improves build coverage and avoids running into the same problem
again when another part of the driver gets changed that relies on
the #ifdef blocks to be completely matched.

Fixes: 934e8bccac95 ("mtk-jpegenc: support jpegenc multi-hardware")
Fixes: 4ae47770d57bf ("media: mtk-jpegenc: Fix a compilation issue")
Fixes: da4ede4b7fd6a ("media: mtk-jpeg: move data/code inside CONFIG_OF blocks")
Signed-off-by: Arnd Bergmann <[e-mail]>
---
 drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c   | 6 +-----
 drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c | 4 +---
 drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c | 4 +---
 3 files changed, 3 insertions(+), 11 deletions(-)

Patch

diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
index 4768156181c99..40cb3cb87ba17 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
@@ -28,7 +28,6 @@ 
 #include "mtk_jpeg_core.h"
 #include "mtk_jpeg_dec_parse.h"
 
-#if defined(CONFIG_OF)
 static struct mtk_jpeg_fmt mtk_jpeg_enc_formats[] = {
 	{
 		.fourcc		= V4L2_PIX_FMT_JPEG,
@@ -102,7 +101,6 @@  static struct mtk_jpeg_fmt mtk_jpeg_dec_formats[] = {
 		.flags		= MTK_JPEG_FMT_FLAG_CAPTURE,
 	},
 };
-#endif
 
 #define MTK_JPEG_ENC_NUM_FORMATS ARRAY_SIZE(mtk_jpeg_enc_formats)
 #define MTK_JPEG_DEC_NUM_FORMATS ARRAY_SIZE(mtk_jpeg_dec_formats)
@@ -1455,7 +1453,6 @@  static const struct dev_pm_ops mtk_jpeg_pm_ops = {
 	SET_RUNTIME_PM_OPS(mtk_jpeg_pm_suspend, mtk_jpeg_pm_resume, NULL)
 };
 
-#if defined(CONFIG_OF)
 static int mtk_jpegenc_get_hw(struct mtk_jpeg_ctx *ctx)
 {
 	struct mtk_jpegenc_comp_dev *comp_jpeg;
@@ -1951,14 +1948,13 @@  static const struct of_device_id mtk_jpeg_match[] = {
 };
 
 MODULE_DEVICE_TABLE(of, mtk_jpeg_match);
-#endif
 
 static struct platform_driver mtk_jpeg_driver = {
 	.probe = mtk_jpeg_probe,
 	.remove_new = mtk_jpeg_remove,
 	.driver = {
 		.name           = MTK_JPEG_NAME,
-		.of_match_table = of_match_ptr(mtk_jpeg_match),
+		.of_match_table = mtk_jpeg_match,
 		.pm             = &mtk_jpeg_pm_ops,
 	},
 };
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
index 869068fac5e2f..baa7be58ce691 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
@@ -39,7 +39,6 @@  enum mtk_jpeg_color {
 	MTK_JPEG_COLOR_400		= 0x00110000
 };
 
-#if defined(CONFIG_OF)
 static const struct of_device_id mtk_jpegdec_hw_ids[] = {
 	{
 		.compatible = "mediatek,mt8195-jpgdec-hw",
@@ -47,7 +46,6 @@  static const struct of_device_id mtk_jpegdec_hw_ids[] = {
 	{},
 };
 MODULE_DEVICE_TABLE(of, mtk_jpegdec_hw_ids);
-#endif
 
 static inline int mtk_jpeg_verify_align(u32 val, int align, u32 reg)
 {
@@ -653,7 +651,7 @@  static struct platform_driver mtk_jpegdec_hw_driver = {
 	.probe = mtk_jpegdec_hw_probe,
 	.driver = {
 		.name = "mtk-jpegdec-hw",
-		.of_match_table = of_match_ptr(mtk_jpegdec_hw_ids),
+		.of_match_table = mtk_jpegdec_hw_ids,
 	},
 };
 
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c
index 71e85b4bbf127..244018365b6f1 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c
@@ -46,7 +46,6 @@  static const struct mtk_jpeg_enc_qlt mtk_jpeg_enc_quality[] = {
 	{.quality_param = 97, .hardware_value = JPEG_ENC_QUALITY_Q97},
 };
 
-#if defined(CONFIG_OF)
 static const struct of_device_id mtk_jpegenc_drv_ids[] = {
 	{
 		.compatible = "mediatek,mt8195-jpgenc-hw",
@@ -54,7 +53,6 @@  static const struct of_device_id mtk_jpegenc_drv_ids[] = {
 	{},
 };
 MODULE_DEVICE_TABLE(of, mtk_jpegenc_drv_ids);
-#endif
 
 void mtk_jpeg_enc_reset(void __iomem *base)
 {
@@ -377,7 +375,7 @@  static struct platform_driver mtk_jpegenc_hw_driver = {
 	.probe = mtk_jpegenc_hw_probe,
 	.driver = {
 		.name = "mtk-jpegenc-hw",
-		.of_match_table = of_match_ptr(mtk_jpegenc_drv_ids),
+		.of_match_table = mtk_jpegenc_drv_ids,
 	},
 };