[PATCH] staging: sm750fb: fix all checkpatch warnings in .c and .h files

[PATCH] staging: sm750fb: fix all checkpatch warnings in .c and .h files

[Manish Kumar]

This patch resolves all checkpatch.pl --strict warnings in the
sm750fb driver source files, including both C and header files.

Changes include:
- Replacing CamelCase identifiers with snake_case
- Avoiding chained assignments
- Fixing indentation, spacing, and alignment issues
- Updating function declarations and comment styles
- Making code conform to kernel coding style

No functional changes.

Signed-off-by: Manish Kumar <manish1588@gmail.com>
---
 drivers/staging/sm750fb/sm750.c       |  90 ++++++++++---------
 drivers/staging/sm750fb/sm750.h       |  32 +++----
 drivers/staging/sm750fb/sm750_accel.c | 120 +++++++++++++-------------
 drivers/staging/sm750fb/sm750_hw.c    |  24 +++---
 4 files changed, 135 insertions(+), 131 deletions(-)

diff --git a/drivers/staging/sm750fb/sm750.c b/drivers/staging/sm750fb/sm750.c
index e77ad73f0db1..8794195a9594 100644
--- a/drivers/staging/sm750fb/sm750.c
+++ b/drivers/staging/sm750fb/sm750.c
@@ -33,7 +33,7 @@
 static int g_hwcursor = 1;
 static int g_noaccel;
 static int g_nomtrr;
-static const char * const g_fbmode[] = {NULL, NULL};
+static const char *g_fbmode[] = {NULL, NULL};
 static const char *g_def_fbmode = "1024x768-32@60";
 static char *g_settings;
 static int g_dualview;
@@ -160,7 +160,7 @@ static void lynxfb_ops_fillrect(struct fb_info *info,
 {
 	struct lynxfb_par *par;
 	struct sm750_dev *sm750_dev;
-	unsigned int base, pitch, Bpp, rop;
+	unsigned int base, pitch, bpp, rop;
 	u32 color;
 
 	if (info->state != FBINFO_STATE_RUNNING)
@@ -175,9 +175,9 @@ static void lynxfb_ops_fillrect(struct fb_info *info,
 	 */
 	base = par->crtc.o_screen;
 	pitch = info->fix.line_length;
-	Bpp = info->var.bits_per_pixel >> 3;
+	bpp = info->var.bits_per_pixel >> 3;
 
-	color = (Bpp == 1) ? region->color :
+	color = (bpp == 1) ? region->color :
 		((u32 *)info->pseudo_palette)[region->color];
 	rop = (region->rop != ROP_COPY) ? HW_ROP2_XOR : HW_ROP2_COPY;
 
@@ -190,7 +190,7 @@ static void lynxfb_ops_fillrect(struct fb_info *info,
 	spin_lock(&sm750_dev->slock);
 
 	sm750_dev->accel.de_fillrect(&sm750_dev->accel,
-				     base, pitch, Bpp,
+				     base, pitch, bpp,
 				     region->dx, region->dy,
 				     region->width, region->height,
 				     color, rop);
@@ -202,7 +202,7 @@ static void lynxfb_ops_copyarea(struct fb_info *info,
 {
 	struct lynxfb_par *par;
 	struct sm750_dev *sm750_dev;
-	unsigned int base, pitch, Bpp;
+	unsigned int base, pitch, bpp;
 
 	par = info->par;
 	sm750_dev = par->dev;
@@ -213,7 +213,7 @@ static void lynxfb_ops_copyarea(struct fb_info *info,
 	 */
 	base = par->crtc.o_screen;
 	pitch = info->fix.line_length;
-	Bpp = info->var.bits_per_pixel >> 3;
+	bpp = info->var.bits_per_pixel >> 3;
 
 	/*
 	 * If not use spin_lock, system will die if user load driver
@@ -225,7 +225,7 @@ static void lynxfb_ops_copyarea(struct fb_info *info,
 
 	sm750_dev->accel.de_copyarea(&sm750_dev->accel,
 				     base, pitch, region->sx, region->sy,
-				     base, pitch, Bpp, region->dx, region->dy,
+				     base, pitch, bpp, region->dx, region->dy,
 				     region->width, region->height,
 				     HW_ROP2_COPY);
 	spin_unlock(&sm750_dev->slock);
@@ -234,7 +234,7 @@ static void lynxfb_ops_copyarea(struct fb_info *info,
 static void lynxfb_ops_imageblit(struct fb_info *info,
 				 const struct fb_image *image)
 {
-	unsigned int base, pitch, Bpp;
+	unsigned int base, pitch, bpp;
 	unsigned int fgcol, bgcol;
 	struct lynxfb_par *par;
 	struct sm750_dev *sm750_dev;
@@ -247,7 +247,7 @@ static void lynxfb_ops_imageblit(struct fb_info *info,
 	 */
 	base = par->crtc.o_screen;
 	pitch = info->fix.line_length;
-	Bpp = info->var.bits_per_pixel >> 3;
+	bpp = info->var.bits_per_pixel >> 3;
 
 	/* TODO: Implement hardware acceleration for image->depth > 1 */
 	if (image->depth != 1) {
@@ -274,7 +274,7 @@ static void lynxfb_ops_imageblit(struct fb_info *info,
 
 	sm750_dev->accel.de_imageblit(&sm750_dev->accel,
 				      image->data, image->width >> 3, 0,
-				      base, pitch, Bpp,
+				      base, pitch, bpp,
 				      image->dx, image->dy,
 				      image->width, image->height,
 				      fgcol, bgcol, HW_ROP2_COPY);
@@ -526,6 +526,7 @@ static int lynxfb_ops_setcolreg(unsigned int regno,
 	struct lynxfb_crtc *crtc;
 	struct fb_var_screeninfo *var;
 	int ret;
+	int gray;
 
 	par = info->par;
 	crtc = &par->crtc;
@@ -538,7 +539,10 @@ static int lynxfb_ops_setcolreg(unsigned int regno,
 	}
 
 	if (info->var.grayscale)
-		red = green = blue = (red * 77 + green * 151 + blue * 28) >> 8;
+		gray = (red * 77 + green * 151 + blue * 28) >> 8;
+		red = gray;
+		green = gray;
+		blue = gray;
 
 	if (var->bits_per_pixel == 8 &&
 	    info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
@@ -577,7 +581,7 @@ static int lynxfb_ops_blank(int blank, struct fb_info *info)
 	pr_debug("blank = %d.\n", blank);
 	par = info->par;
 	output = &par->output;
-	return output->proc_setBLANK(output, blank);
+	return output->proc_set_BLANK(output, blank);
 }
 
 static int sm750fb_set_drv(struct lynxfb_par *par)
@@ -598,14 +602,14 @@ static int sm750fb_set_drv(struct lynxfb_par *par)
 		crtc->vidmem_size >>= 1;
 
 	/* setup crtc and output member */
-	sm750_dev->hwCursor = g_hwcursor;
+	sm750_dev->hw_cursor = g_hwcursor;
 
 	crtc->line_pad = 16;
 	crtc->xpanstep = 8;
 	crtc->ypanstep = 1;
 	crtc->ywrapstep = 0;
 
-	output->proc_setBLANK = (sm750_dev->revid == SM750LE_REVISION_ID) ?
+	output->proc_set_BLANK = (sm750_dev->revid == SM750LE_REVISION_ID) ?
 				 hw_sm750le_set_blank : hw_sm750_set_blank;
 	/* chip specific phase */
 	sm750_dev->accel.de_wait = (sm750_dev->revid == SM750LE_REVISION_ID) ?
@@ -615,27 +619,27 @@ static int sm750fb_set_drv(struct lynxfb_par *par)
 		output->paths = sm750_pnc;
 		crtc->channel = sm750_primary;
 		crtc->o_screen = 0;
-		crtc->v_screen = sm750_dev->pvMem;
+		crtc->v_screen = sm750_dev->pv_mem;
 		pr_info("use simul primary mode\n");
 		break;
 	case sm750_simul_sec:
 		output->paths = sm750_pnc;
 		crtc->channel = sm750_secondary;
 		crtc->o_screen = 0;
-		crtc->v_screen = sm750_dev->pvMem;
+		crtc->v_screen = sm750_dev->pv_mem;
 		break;
 	case sm750_dual_normal:
 		if (par->index == 0) {
 			output->paths = sm750_panel;
 			crtc->channel = sm750_primary;
 			crtc->o_screen = 0;
-			crtc->v_screen = sm750_dev->pvMem;
+			crtc->v_screen = sm750_dev->pv_mem;
 		} else {
 			output->paths = sm750_crt;
 			crtc->channel = sm750_secondary;
 			/* not consider of padding stuffs for o_screen,need fix */
 			crtc->o_screen = sm750_dev->vidmem_size >> 1;
-			crtc->v_screen = sm750_dev->pvMem + crtc->o_screen;
+			crtc->v_screen = sm750_dev->pv_mem + crtc->o_screen;
 		}
 		break;
 	case sm750_dual_swap:
@@ -643,7 +647,7 @@ static int sm750fb_set_drv(struct lynxfb_par *par)
 			output->paths = sm750_panel;
 			crtc->channel = sm750_secondary;
 			crtc->o_screen = 0;
-			crtc->v_screen = sm750_dev->pvMem;
+			crtc->v_screen = sm750_dev->pv_mem;
 		} else {
 			output->paths = sm750_crt;
 			crtc->channel = sm750_primary;
@@ -651,7 +655,7 @@ static int sm750fb_set_drv(struct lynxfb_par *par)
 			 * need fix
 			 */
 			crtc->o_screen = sm750_dev->vidmem_size >> 1;
-			crtc->v_screen = sm750_dev->pvMem + crtc->o_screen;
+			crtc->v_screen = sm750_dev->pv_mem + crtc->o_screen;
 		}
 		break;
 	default:
@@ -731,7 +735,7 @@ static int lynxfb_set_fbinfo(struct fb_info *info, int index)
 		"kernel HELPERS prepared vesa_modes",
 	};
 
-	static const char *fixId[2] = {
+	static const char *fix_id[2] = {
 		"sm750_fb1", "sm750_fb2",
 	};
 
@@ -755,14 +759,14 @@ static int lynxfb_set_fbinfo(struct fb_info *info, int index)
 	 * must be set after crtc member initialized
 	 */
 	crtc->cursor.offset = crtc->o_screen + crtc->vidmem_size - 1024;
-	crtc->cursor.mmio = sm750_dev->pvReg +
+	crtc->cursor.mmio = sm750_dev->pv_reg +
 		0x800f0 + (int)crtc->channel * 0x140;
 
 	pr_info("crtc->cursor.mmio = %p\n", crtc->cursor.mmio);
 	crtc->cursor.max_h = 64;
 	crtc->cursor.max_w = 64;
 	crtc->cursor.size = crtc->cursor.max_h * crtc->cursor.max_w * 2 / 8;
-	crtc->cursor.vstart = sm750_dev->pvMem + crtc->cursor.offset;
+	crtc->cursor.vstart = sm750_dev->pv_mem + crtc->cursor.offset;
 
 	memset_io(crtc->cursor.vstart, 0, crtc->cursor.size);
 	if (!g_hwcursor)
@@ -853,7 +857,7 @@ static int lynxfb_set_fbinfo(struct fb_info *info, int index)
 	fix->ywrapstep = crtc->ywrapstep;
 	fix->accel = FB_ACCEL_SMI;
 
-	strscpy(fix->id, fixId[index], sizeof(fix->id));
+	strscpy(fix->id, fix_id[index], sizeof(fix->id));
 
 	fix->smem_start = crtc->o_screen + sm750_dev->vidmem_start;
 	pr_info("fix->smem_start = %lx\n", fix->smem_start);
@@ -909,12 +913,12 @@ static void sm750fb_setup(struct sm750_dev *sm750_dev, char *src)
 
 	swap = 0;
 
-	sm750_dev->initParm.chip_clk = 0;
-	sm750_dev->initParm.mem_clk = 0;
-	sm750_dev->initParm.master_clk = 0;
-	sm750_dev->initParm.powerMode = 0;
-	sm750_dev->initParm.setAllEngOff = 0;
-	sm750_dev->initParm.resetMemory = 1;
+	sm750_dev->init_parm.chip_clk = 0;
+	sm750_dev->init_parm.mem_clk = 0;
+	sm750_dev->init_parm.master_clk = 0;
+	sm750_dev->init_parm.power_mode = 0;
+	sm750_dev->init_parm.set_all_eng_off = 0;
+	sm750_dev->init_parm.reset_memory = 1;
 
 	/* defaultly turn g_hwcursor on for both view */
 	g_hwcursor = 3;
@@ -933,11 +937,11 @@ static void sm750fb_setup(struct sm750_dev *sm750_dev, char *src)
 		} else if (!strncmp(opt, "nocrt", strlen("nocrt"))) {
 			sm750_dev->nocrt = 1;
 		} else if (!strncmp(opt, "36bit", strlen("36bit"))) {
-			sm750_dev->pnltype = sm750_doubleTFT;
+			sm750_dev->pnl_type = sm750_double_TFT;
 		} else if (!strncmp(opt, "18bit", strlen("18bit"))) {
-			sm750_dev->pnltype = sm750_dualTFT;
+			sm750_dev->pnl_type = sm750_dual_TFT;
 		} else if (!strncmp(opt, "24bit", strlen("24bit"))) {
-			sm750_dev->pnltype = sm750_24TFT;
+			sm750_dev->pnl_type = sm750_24TFT;
 		} else if (!strncmp(opt, "nohwc0", strlen("nohwc0"))) {
 			g_hwcursor &= ~0x1;
 		} else if (!strncmp(opt, "nohwc1", strlen("nohwc1"))) {
@@ -963,20 +967,20 @@ static void sm750fb_setup(struct sm750_dev *sm750_dev, char *src)
 	if (sm750_dev->revid != SM750LE_REVISION_ID) {
 		if (sm750_dev->fb_count > 1) {
 			if (swap)
-				sm750_dev->dataflow = sm750_dual_swap;
+				sm750_dev->data_flow = sm750_dual_swap;
 			else
-				sm750_dev->dataflow = sm750_dual_normal;
+				sm750_dev->data_flow = sm750_dual_normal;
 		} else {
 			if (swap)
-				sm750_dev->dataflow = sm750_simul_sec;
+				sm750_dev->data_flow = sm750_simul_sec;
 			else
-				sm750_dev->dataflow = sm750_simul_pri;
+				sm750_dev->data_flow = sm750_simul_pri;
 		}
 	} else {
 		/* SM750LE only have one crt channel */
-		sm750_dev->dataflow = sm750_simul_sec;
+		sm750_dev->data_flow = sm750_simul_sec;
 		/* sm750le do not have complex attributes */
-		sm750_dev->nocrt = 0;
+		sm750_dev->no_crt = 0;
 	}
 }
 
@@ -1081,7 +1085,7 @@ static int lynxfb_pci_probe(struct pci_dev *pdev,
 		sm750_dev->mtrr.vram = arch_phys_wc_add(sm750_dev->vidmem_start,
 							sm750_dev->vidmem_size);
 
-	memset_io(sm750_dev->pvMem, 0, sm750_dev->vidmem_size);
+	memset_io(sm750_dev->pv_mem, 0, sm750_dev->vidmem_size);
 
 	pci_set_drvdata(pdev, sm750_dev);
 
@@ -1112,8 +1116,8 @@ static void lynxfb_pci_remove(struct pci_dev *pdev)
 	sm750fb_framebuffer_release(sm750_dev);
 	arch_phys_wc_del(sm750_dev->mtrr.vram);
 
-	iounmap(sm750_dev->pvReg);
-	iounmap(sm750_dev->pvMem);
+	iounmap(sm750_dev->pv_reg);
+	iounmap(sm750_dev->pv_mem);
 	kfree(g_settings);
 }
 
diff --git a/drivers/staging/sm750fb/sm750.h b/drivers/staging/sm750fb/sm750.h
index 9cf8b3d30aac..9ae21cebc669 100644
--- a/drivers/staging/sm750fb/sm750.h
+++ b/drivers/staging/sm750fb/sm750.h
@@ -13,9 +13,9 @@
 #endif
 
 enum sm750_pnltype {
-	sm750_24TFT = 0,	/* 24bit tft */
-	sm750_dualTFT = 2,	/* dual 18 bit tft */
-	sm750_doubleTFT = 1,	/* 36 bit double pixel tft */
+	sm750_24_TFT = 0,	/* 24bit tft */
+	sm750_dual_TFT = 2,	/* dual 18 bit tft */
+	sm750_double_TFT = 1,	/* 36 bit double pixel tft */
 };
 
 /* vga channel is not concerned  */
@@ -39,20 +39,20 @@ enum sm750_path {
 };
 
 struct init_status {
-	ushort powerMode;
+	ushort power_mode;
 	/* below three clocks are in unit of MHZ*/
 	ushort chip_clk;
 	ushort mem_clk;
 	ushort master_clk;
-	ushort setAllEngOff;
-	ushort resetMemory;
+	ushort set_all_eng_off;
+	ushort reset_memory;
 };
 
 struct lynx_accel {
 	/* base virtual address of DPR registers */
-	volatile unsigned char __iomem *dprBase;
+	volatile unsigned char __iomem *dpr_base;
 	/* base virtual address of de data port */
-	volatile unsigned char __iomem *dpPortBase;
+	volatile unsigned char __iomem *dp_port_base;
 
 	/* function pointers */
 	void (*de_init)(struct lynx_accel *accel);
@@ -97,15 +97,15 @@ struct sm750_dev {
 	unsigned long vidreg_start;
 	__u32 vidmem_size;
 	__u32 vidreg_size;
-	void __iomem *pvReg;
-	unsigned char __iomem *pvMem;
+	void __iomem *pv_reg;
+	unsigned char __iomem *pv_mem;
 	/* locks*/
 	spinlock_t slock;
 
-	struct init_status initParm;
-	enum sm750_pnltype pnltype;
-	enum sm750_dataflow dataflow;
-	int nocrt;
+	struct init_status init_parm;
+	enum sm750_pnltype pnl_type;
+	enum sm750_dataflow data_flow;
+	int no_crt;
 
 	/*
 	 * 0: no hardware cursor
@@ -113,7 +113,7 @@ struct sm750_dev {
 	 * 2: secondary crtc hw cursor enabled
 	 * 3: both ctrc hw cursor enabled
 	 */
-	int hwCursor;
+	int hw_cursor;
 };
 
 struct lynx_cursor {
@@ -170,7 +170,7 @@ struct lynxfb_output {
 	 */
 	void *priv;
 
-	int (*proc_setBLANK)(struct lynxfb_output *output, int blank);
+	int (*proc_set_BLANK)(struct lynxfb_output *output, int blank);
 };
 
 struct lynxfb_par {
diff --git a/drivers/staging/sm750fb/sm750_accel.c b/drivers/staging/sm750fb/sm750_accel.c
index 44b9e3fe3a41..91a26f5f0e14 100644
--- a/drivers/staging/sm750fb/sm750_accel.c
+++ b/drivers/staging/sm750fb/sm750_accel.c
@@ -17,19 +17,19 @@
 
 #include "sm750.h"
 #include "sm750_accel.h"
-static inline void write_dpr(struct lynx_accel *accel, int offset, u32 regValue)
+static inline void write_dpr(struct lynx_accel *accel, int offset, u32 reg_value)
 {
-	writel(regValue, accel->dprBase + offset);
+	writel(reg_value, accel->dpr_base + offset);
 }
 
 static inline u32 read_dpr(struct lynx_accel *accel, int offset)
 {
-	return readl(accel->dprBase + offset);
+	return readl(accel->dpr_base + offset);
 }
 
-static inline void write_dpPort(struct lynx_accel *accel, u32 data)
+static inline void write_dp_port(struct lynx_accel *accel, u32 data)
 {
-	writel(data, accel->dpPortBase);
+	writel(data, accel->dp_port_base);
 }
 
 void sm750_hw_de_init(struct lynx_accel *accel)
@@ -85,11 +85,11 @@ void sm750_hw_set2dformat(struct lynx_accel *accel, int fmt)
 }
 
 int sm750_hw_fillrect(struct lynx_accel *accel,
-		      u32 base, u32 pitch, u32 Bpp,
+		      u32 base, u32 pitch, u32 bpp,
 		      u32 x, u32 y, u32 width, u32 height,
 		      u32 color, u32 rop)
 {
-	u32 deCtrl;
+	u32 de_ctrl;
 
 	if (accel->de_wait() != 0) {
 		/*
@@ -102,14 +102,14 @@ int sm750_hw_fillrect(struct lynx_accel *accel,
 
 	write_dpr(accel, DE_WINDOW_DESTINATION_BASE, base); /* dpr40 */
 	write_dpr(accel, DE_PITCH,
-		  ((pitch / Bpp << DE_PITCH_DESTINATION_SHIFT) &
+		  ((pitch / bpp << DE_PITCH_DESTINATION_SHIFT) &
 		   DE_PITCH_DESTINATION_MASK) |
-		  (pitch / Bpp & DE_PITCH_SOURCE_MASK)); /* dpr10 */
+		  (pitch / bpp & DE_PITCH_SOURCE_MASK)); /* dpr10 */
 
 	write_dpr(accel, DE_WINDOW_WIDTH,
-		  ((pitch / Bpp << DE_WINDOW_WIDTH_DST_SHIFT) &
+		  ((pitch / bpp << DE_WINDOW_WIDTH_DST_SHIFT) &
 		   DE_WINDOW_WIDTH_DST_MASK) |
-		   (pitch / Bpp & DE_WINDOW_WIDTH_SRC_MASK)); /* dpr44 */
+		   (pitch / bpp & DE_WINDOW_WIDTH_SRC_MASK)); /* dpr44 */
 
 	write_dpr(accel, DE_FOREGROUND, color); /* DPR14 */
 
@@ -121,11 +121,11 @@ int sm750_hw_fillrect(struct lynx_accel *accel,
 		  ((width << DE_DIMENSION_X_SHIFT) & DE_DIMENSION_X_MASK) |
 		  (height & DE_DIMENSION_Y_ET_MASK)); /* dpr8 */
 
-	deCtrl = DE_CONTROL_STATUS | DE_CONTROL_LAST_PIXEL |
+	de_ctrl = DE_CONTROL_STATUS | DE_CONTROL_LAST_PIXEL |
 		DE_CONTROL_COMMAND_RECTANGLE_FILL | DE_CONTROL_ROP_SELECT |
 		(rop & DE_CONTROL_ROP_MASK); /* dpr0xc */
 
-	write_dpr(accel, DE_CONTROL, deCtrl);
+	write_dpr(accel, DE_CONTROL, de_ctrl);
 	return 0;
 }
 
@@ -146,21 +146,21 @@ int sm750_hw_fillrect(struct lynx_accel *accel,
  * @rop2: ROP value
  */
 int sm750_hw_copyarea(struct lynx_accel *accel,
-		      unsigned int sBase, unsigned int sPitch,
+		      unsigned int s_base, unsigned int s_pitch,
 		      unsigned int sx, unsigned int sy,
-		      unsigned int dBase, unsigned int dPitch,
-		      unsigned int Bpp, unsigned int dx, unsigned int dy,
+		      unsigned int d_base, unsigned int d_pitch,
+		      unsigned int bpp, unsigned int dx, unsigned int dy,
 		      unsigned int width, unsigned int height,
 		      unsigned int rop2)
 {
-	unsigned int nDirection, de_ctrl;
+	unsigned int n_direction, de_ctrl;
 
-	nDirection = LEFT_TO_RIGHT;
+	n_direction = LEFT_TO_RIGHT;
 	/* Direction of ROP2 operation: 1 = Left to Right, (-1) = Right to Left */
 	de_ctrl = 0;
 
 	/* If source and destination are the same surface, need to check for overlay cases */
-	if (sBase == dBase && sPitch == dPitch) {
+	if (s_base == d_base && s_pitch == d_pitch) {
 		/* Determine direction of operation */
 		if (sy < dy) {
 			/*  +----------+
@@ -173,7 +173,7 @@ int sm750_hw_copyarea(struct lynx_accel *accel,
 			 *	+----------+
 			 */
 
-			nDirection = BOTTOM_TO_TOP;
+			n_direction = BOTTOM_TO_TOP;
 		} else if (sy > dy) {
 			/*  +----------+
 			 *  |D         |
@@ -185,7 +185,7 @@ int sm750_hw_copyarea(struct lynx_accel *accel,
 			 *	+----------+
 			 */
 
-			nDirection = TOP_TO_BOTTOM;
+			n_direction = TOP_TO_BOTTOM;
 		} else {
 			/* sy == dy */
 
@@ -198,7 +198,7 @@ int sm750_hw_copyarea(struct lynx_accel *accel,
 				 * +------+---+------+
 				 */
 
-				nDirection = RIGHT_TO_LEFT;
+				n_direction = RIGHT_TO_LEFT;
 			} else {
 			/* sx > dx */
 
@@ -210,12 +210,12 @@ int sm750_hw_copyarea(struct lynx_accel *accel,
 				 * +------+---+------+
 				 */
 
-				nDirection = LEFT_TO_RIGHT;
+				n_direction = LEFT_TO_RIGHT;
 			}
 		}
 	}
 
-	if ((nDirection == BOTTOM_TO_TOP) || (nDirection == RIGHT_TO_LEFT)) {
+	if ((n_direction == BOTTOM_TO_TOP) || (n_direction == RIGHT_TO_LEFT)) {
 		sx += width - 1;
 		sy += height - 1;
 		dx += width - 1;
@@ -234,14 +234,14 @@ int sm750_hw_copyarea(struct lynx_accel *accel,
 	 * It is an address offset (128 bit aligned)
 	 * from the beginning of frame buffer.
 	 */
-	write_dpr(accel, DE_WINDOW_SOURCE_BASE, sBase); /* dpr40 */
+	write_dpr(accel, DE_WINDOW_SOURCE_BASE, s_base); /* dpr40 */
 
 	/*
 	 * 2D Destination Base.
 	 * It is an address offset (128 bit aligned)
 	 * from the beginning of frame buffer.
 	 */
-	write_dpr(accel, DE_WINDOW_DESTINATION_BASE, dBase); /* dpr44 */
+	write_dpr(accel, DE_WINDOW_DESTINATION_BASE, d_base); /* dpr44 */
 
 	/*
 	 * Program pitch (distance between the 1st points of two adjacent lines).
@@ -249,9 +249,9 @@ int sm750_hw_copyarea(struct lynx_accel *accel,
 	 * pixel values. Need Byte to pixel conversion.
 	 */
 	write_dpr(accel, DE_PITCH,
-		  ((dPitch / Bpp << DE_PITCH_DESTINATION_SHIFT) &
+		  ((d_pitch / bpp << DE_PITCH_DESTINATION_SHIFT) &
 		   DE_PITCH_DESTINATION_MASK) |
-		  (sPitch / Bpp & DE_PITCH_SOURCE_MASK)); /* dpr10 */
+		  (s_pitch / bpp & DE_PITCH_SOURCE_MASK)); /* dpr10 */
 
 	/*
 	 * Screen Window width in Pixels.
@@ -259,9 +259,9 @@ int sm750_hw_copyarea(struct lynx_accel *accel,
 	 * for a given point.
 	 */
 	write_dpr(accel, DE_WINDOW_WIDTH,
-		  ((dPitch / Bpp << DE_WINDOW_WIDTH_DST_SHIFT) &
+		  ((d_pitch / bpp << DE_WINDOW_WIDTH_DST_SHIFT) &
 		   DE_WINDOW_WIDTH_DST_MASK) |
-		  (sPitch / Bpp & DE_WINDOW_WIDTH_SRC_MASK)); /* dpr3c */
+		  (s_pitch / bpp & DE_WINDOW_WIDTH_SRC_MASK)); /* dpr3c */
 
 	if (accel->de_wait() != 0)
 		return -1;
@@ -277,14 +277,14 @@ int sm750_hw_copyarea(struct lynx_accel *accel,
 		  (height & DE_DIMENSION_Y_ET_MASK)); /* dpr08 */
 
 	de_ctrl = (rop2 & DE_CONTROL_ROP_MASK) | DE_CONTROL_ROP_SELECT |
-		((nDirection == RIGHT_TO_LEFT) ? DE_CONTROL_DIRECTION : 0) |
+		((n_direction == RIGHT_TO_LEFT) ? DE_CONTROL_DIRECTION : 0) |
 		DE_CONTROL_COMMAND_BITBLT | DE_CONTROL_STATUS;
 	write_dpr(accel, DE_CONTROL, de_ctrl); /* dpr0c */
 
 	return 0;
 }
 
-static unsigned int deGetTransparency(struct lynx_accel *accel)
+static unsigned int de_get_transparency(struct lynx_accel *accel)
 {
 	unsigned int de_ctrl;
 
@@ -315,22 +315,22 @@ static unsigned int deGetTransparency(struct lynx_accel *accel)
  * @bColor: Background color (corresponding to a 0 in the monochrome data
  * @rop2: ROP value
  */
-int sm750_hw_imageblit(struct lynx_accel *accel, const char *pSrcbuf,
-		       u32 srcDelta, u32 startBit, u32 dBase, u32 dPitch,
-		       u32 bytePerPixel, u32 dx, u32 dy, u32 width,
-		       u32 height, u32 fColor, u32 bColor, u32 rop2)
+int sm750_hw_imageblit(struct lynx_accel *accel, const char *p_src_buf,
+		       u32 src_delta, u32 start_bit, u32 d_base, u32 d_pitch,
+		       u32 byte_per_pixel, u32 dx, u32 dy, u32 width,
+		       u32 height, u32 f_color, u32 b_color, u32 rop2)
 {
-	unsigned int ulBytesPerScan;
-	unsigned int ul4BytesPerScan;
-	unsigned int ulBytesRemain;
+	unsigned int ul_bytes_per_scan;
+	unsigned int ul_4bytes_per_scan;
+	unsigned int ul_bytes_remain;
 	unsigned int de_ctrl = 0;
-	unsigned char ajRemain[4];
+	unsigned char aj_remain[4];
 	int i, j;
 
-	startBit &= 7; /* Just make sure the start bit is within legal range */
-	ulBytesPerScan = (width + startBit + 7) / 8;
-	ul4BytesPerScan = ulBytesPerScan & ~3;
-	ulBytesRemain = ulBytesPerScan & 3;
+	start_bit &= 7; /* Just make sure the start bit is within legal range */
+	ul_bytes_per_scan = (width + start_bit + 7) / 8;
+	ul_4bytes_per_scan = ul_bytes_per_scan & ~3;
+	ul_bytes_remain = ul_bytes_per_scan & 3;
 
 	if (accel->de_wait() != 0)
 		return -1;
@@ -345,7 +345,7 @@ int sm750_hw_imageblit(struct lynx_accel *accel, const char *pSrcbuf,
 	 * It is an address offset (128 bit aligned)
 	 * from the beginning of frame buffer.
 	 */
-	write_dpr(accel, DE_WINDOW_DESTINATION_BASE, dBase);
+	write_dpr(accel, DE_WINDOW_DESTINATION_BASE, d_base);
 
 	/*
 	 * Program pitch (distance between the 1st points of two adjacent
@@ -353,9 +353,9 @@ int sm750_hw_imageblit(struct lynx_accel *accel, const char *pSrcbuf,
 	 * register uses pixel values. Need Byte to pixel conversion.
 	 */
 	write_dpr(accel, DE_PITCH,
-		  ((dPitch / bytePerPixel << DE_PITCH_DESTINATION_SHIFT) &
+		  ((d_pitch / byte_per_pixel << DE_PITCH_DESTINATION_SHIFT) &
 		   DE_PITCH_DESTINATION_MASK) |
-		  (dPitch / bytePerPixel & DE_PITCH_SOURCE_MASK)); /* dpr10 */
+		  (d_pitch / byte_per_pixel & DE_PITCH_SOURCE_MASK)); /* dpr10 */
 
 	/*
 	 * Screen Window width in Pixels.
@@ -363,9 +363,9 @@ int sm750_hw_imageblit(struct lynx_accel *accel, const char *pSrcbuf,
 	 * in frame buffer for a given point.
 	 */
 	write_dpr(accel, DE_WINDOW_WIDTH,
-		  ((dPitch / bytePerPixel << DE_WINDOW_WIDTH_DST_SHIFT) &
+		  ((d_pitch / byte_per_pixel << DE_WINDOW_WIDTH_DST_SHIFT) &
 		   DE_WINDOW_WIDTH_DST_MASK) |
-		  (dPitch / bytePerPixel & DE_WINDOW_WIDTH_SRC_MASK));
+		  (d_pitch / byte_per_pixel & DE_WINDOW_WIDTH_SRC_MASK));
 
 	 /*
 	  * Note: For 2D Source in Host Write, only X_K1_MONO field is needed,
@@ -373,7 +373,7 @@ int sm750_hw_imageblit(struct lynx_accel *accel, const char *pSrcbuf,
 	  * For mono bitmap, use startBit for X_K1.
 	  */
 	write_dpr(accel, DE_SOURCE,
-		  (startBit << DE_SOURCE_X_K1_SHIFT) &
+		  (start_bit << DE_SOURCE_X_K1_SHIFT) &
 		  DE_SOURCE_X_K1_MONO_MASK); /* dpr00 */
 
 	write_dpr(accel, DE_DESTINATION,
@@ -384,28 +384,28 @@ int sm750_hw_imageblit(struct lynx_accel *accel, const char *pSrcbuf,
 		  ((width << DE_DIMENSION_X_SHIFT) & DE_DIMENSION_X_MASK) |
 		  (height & DE_DIMENSION_Y_ET_MASK)); /* dpr08 */
 
-	write_dpr(accel, DE_FOREGROUND, fColor);
-	write_dpr(accel, DE_BACKGROUND, bColor);
+	write_dpr(accel, DE_FOREGROUND, f_color);
+	write_dpr(accel, DE_BACKGROUND, b_color);
 
 	de_ctrl = (rop2 & DE_CONTROL_ROP_MASK) |
 		DE_CONTROL_ROP_SELECT | DE_CONTROL_COMMAND_HOST_WRITE |
 		DE_CONTROL_HOST | DE_CONTROL_STATUS;
 
-	write_dpr(accel, DE_CONTROL, de_ctrl | deGetTransparency(accel));
+	write_dpr(accel, DE_CONTROL, de_ctrl | de_get_transparency(accel));
 
 	/* Write MONO data (line by line) to 2D Engine data port */
 	for (i = 0; i < height; i++) {
 		/* For each line, send the data in chunks of 4 bytes */
-		for (j = 0; j < (ul4BytesPerScan / 4); j++)
-			write_dpPort(accel, *(unsigned int *)(pSrcbuf + (j * 4)));
+		for (j = 0; j < (ul_4bytes_per_scan / 4); j++)
+			write_dp_port(accel, *(unsigned int *)(p_src_buf + (j * 4)));
 
-		if (ulBytesRemain) {
-			memcpy(ajRemain, pSrcbuf + ul4BytesPerScan,
-			       ulBytesRemain);
-			write_dpPort(accel, *(unsigned int *)ajRemain);
+		if (ul_bytes_remain) {
+			memcpy(aj_remain, p_src_buf + ul_4bytes_per_scan,
+			       ul_bytes_remain);
+			write_dp_port(accel, *(unsigned int *)aj_remain);
 		}
 
-		pSrcbuf += srcDelta;
+		p_src_buf += src_delta;
 	}
 
 	return 0;
diff --git a/drivers/staging/sm750fb/sm750_hw.c b/drivers/staging/sm750fb/sm750_hw.c
index 7119b67efe11..ce6a0d2ebbb5 100644
--- a/drivers/staging/sm750fb/sm750_hw.c
+++ b/drivers/staging/sm750fb/sm750_hw.c
@@ -49,19 +49,19 @@ int hw_sm750_map(struct sm750_dev *sm750_dev, struct pci_dev *pdev)
 	}
 
 	/* now map mmio and vidmem */
-	sm750_dev->pvReg =
+	sm750_dev->pv_reg =
 		ioremap(sm750_dev->vidreg_start, sm750_dev->vidreg_size);
-	if (!sm750_dev->pvReg) {
+	if (!sm750_dev->pv_reg) {
 		pr_err("mmio failed\n");
 		ret = -EFAULT;
 		goto exit;
 	}
-	pr_info("mmio virtual addr = %p\n", sm750_dev->pvReg);
+	pr_info("mmio virtual addr = %p\n", sm750_dev->pv_reg);
 
-	sm750_dev->accel.dprBase = sm750_dev->pvReg + DE_BASE_ADDR_TYPE1;
-	sm750_dev->accel.dpPortBase = sm750_dev->pvReg + DE_PORT_ADDR_TYPE1;
+	sm750_dev->accel.dpr_base = sm750_dev->pv_reg + DE_BASE_ADDR_TYPE1;
+	sm750_dev->accel.dp_port_base = sm750_dev->pv_reg + DE_PORT_ADDR_TYPE1;
 
-	mmio750 = sm750_dev->pvReg;
+	mmio750 = sm750_dev->pv_reg;
 	sm750_set_chip_type(sm750_dev->devid, sm750_dev->revid);
 
 	sm750_dev->vidmem_start = pci_resource_start(pdev, 0);
@@ -76,15 +76,15 @@ int hw_sm750_map(struct sm750_dev *sm750_dev, struct pci_dev *pdev)
 		sm750_dev->vidmem_start, sm750_dev->vidmem_size);
 
 	/* reserve the vidmem space of smi adaptor */
-	sm750_dev->pvMem =
+	sm750_dev->pv_mem =
 		ioremap_wc(sm750_dev->vidmem_start, sm750_dev->vidmem_size);
-	if (!sm750_dev->pvMem) {
-		iounmap(sm750_dev->pvReg);
+	if (!sm750_dev->pv_mem) {
+		iounmap(sm750_dev->pv_reg);
 		pr_err("Map video memory failed\n");
 		ret = -EFAULT;
 		goto exit;
 	}
-	pr_info("video memory vaddr = %p\n", sm750_dev->pvMem);
+	pr_info("video memory vaddr = %p\n", sm750_dev->pv_mem);
 exit:
 	return ret;
 }
@@ -93,7 +93,7 @@ int hw_sm750_inithw(struct sm750_dev *sm750_dev, struct pci_dev *pdev)
 {
 	struct init_status *parm;
 
-	parm = &sm750_dev->initParm;
+	parm = &sm750_dev->init_parm;
 	if (parm->chip_clk == 0)
 		parm->chip_clk = (sm750_get_chip_type() == SM750LE) ?
 					       DEFAULT_SM750LE_CHIP_CLOCK :
@@ -104,7 +104,7 @@ int hw_sm750_inithw(struct sm750_dev *sm750_dev, struct pci_dev *pdev)
 	if (parm->master_clk == 0)
 		parm->master_clk = parm->chip_clk / 3;
 
-	ddk750_init_hw((struct initchip_param *)&sm750_dev->initParm);
+	ddk750_init_hw((struct initchip_param *)&sm750_dev->init_parm);
 	/* for sm718, open pci burst */
 	if (sm750_dev->devid == 0x718) {
 		poke32(SYSTEM_CTRL,
-- 
2.43.0

Re: [PATCH] staging: sm750fb: fix all checkpatch warnings in .c and .h files

[Greg KH]

On Sat, Jun 28, 2025 at 01:53:05PM +0530, Manish Kumar wrote:
> This patch resolves all checkpatch.pl --strict warnings in the
> sm750fb driver source files, including both C and header files.
> 
> Changes include:
> - Replacing CamelCase identifiers with snake_case
> - Avoiding chained assignments
> - Fixing indentation, spacing, and alignment issues
> - Updating function declarations and comment styles
> - Making code conform to kernel coding style
> 
> No functional changes.
> 
> Signed-off-by: Manish Kumar <manish1588@gmail.com>
> ---
>  drivers/staging/sm750fb/sm750.c       |  90 ++++++++++---------
>  drivers/staging/sm750fb/sm750.h       |  32 +++----
>  drivers/staging/sm750fb/sm750_accel.c | 120 +++++++++++++-------------
>  drivers/staging/sm750fb/sm750_hw.c    |  24 +++---
>  4 files changed, 135 insertions(+), 131 deletions(-)

Hi,

This is the friendly patch-bot of Greg Kroah-Hartman.  You have sent him
a patch that has triggered this response.  He used to manually respond
to these common problems, but in order to save his sanity (he kept
writing the same thing over and over, yet to different people), I was
created.  Hopefully you will not take offence and will fix the problem
in your patch and resubmit it so that it can be accepted into the Linux
kernel tree.

You are receiving this message because of the following common error(s)
as indicated below:

- Your patch did many different things all at once, making it difficult
  to review.  All Linux kernel patches need to only do one thing at a
  time.  If you need to do multiple things (such as clean up all coding
  style issues in a file/driver), do it in a sequence of patches, each
  one doing only one thing.  This will make it easier to review the
  patches to ensure that they are correct, and to help alleviate any
  merge issues that larger patches can cause.

If you wish to discuss this problem further, or you have questions about
how to resolve this issue, please feel free to respond to this email and
Greg will reply once he has dug out from the pending patches received
from other developers.

thanks,

greg k-h's patch email bot

Re: [PATCH] staging: sm750fb: fix all checkpatch warnings in .c and .h files

[Dan Carpenter]

On Sat, Jun 28, 2025 at 01:53:05PM +0530, Manish Kumar wrote:
> This patch resolves all checkpatch.pl --strict warnings in the
> sm750fb driver source files, including both C and header files.
> 
> Changes include:
> - Replacing CamelCase identifiers with snake_case
> - Avoiding chained assignments
> - Fixing indentation, spacing, and alignment issues
> - Updating function declarations and comment styles
> - Making code conform to kernel coding style
> 
> No functional changes.
> 
> Signed-off-by: Manish Kumar <manish1588@gmail.com>
> ---
>  drivers/staging/sm750fb/sm750.c       |  90 ++++++++++---------
>  drivers/staging/sm750fb/sm750.h       |  32 +++----
>  drivers/staging/sm750fb/sm750_accel.c | 120 +++++++++++++-------------
>  drivers/staging/sm750fb/sm750_hw.c    |  24 +++---
>  4 files changed, 135 insertions(+), 131 deletions(-)
> 
> diff --git a/drivers/staging/sm750fb/sm750.c b/drivers/staging/sm750fb/sm750.c
> index e77ad73f0db1..8794195a9594 100644
> --- a/drivers/staging/sm750fb/sm750.c
> +++ b/drivers/staging/sm750fb/sm750.c
> @@ -33,7 +33,7 @@
>  static int g_hwcursor = 1;
>  static int g_noaccel;
>  static int g_nomtrr;
> -static const char * const g_fbmode[] = {NULL, NULL};
> +static const char *g_fbmode[] = {NULL, NULL};

You're removing a patch which we never applied.  Start from a fresh
tree.

regards,
dan carpenter