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[34.90.183.181]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b8e9fef0e17sm106440366b.33.2026.02.04.02.15.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Feb 2026 02:15:38 -0800 (PST) From: Artem Lytkin To: Sudip Mukherjee , Teddy Wang , Greg Kroah-Hartman Cc: linux-fbdev@vger.kernel.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org, Artem Lytkin Subject: [PATCH v2 3/4] staging: sm750fb: remove debug prints and convert logging in sm750.c Date: Wed, 4 Feb 2026 10:15:35 +0000 Message-ID: <20260204101536.3311-3-iprintercanon@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260204101536.3311-1-iprintercanon@gmail.com> References: <20260204101536.3311-1-iprintercanon@gmail.com> Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Remove debug prints disguised as pr_info that dump internal variable values, pointer addresses, and structure contents. Convert remaining meaningful pr_err and pr_warn calls to dev_err and dev_warn where device context is available. Signed-off-by: Artem Lytkin --- drivers/staging/sm750fb/sm750.c | 85 ++++++++------------------------- 1 file changed, 20 insertions(+), 65 deletions(-) diff --git a/drivers/staging/sm750fb/sm750.c b/drivers/staging/sm750fb/sm750.c index 73d78f893..1feb97bee 100644 --- a/drivers/staging/sm750fb/sm750.c +++ b/drivers/staging/sm750fb/sm750.c @@ -375,7 +375,6 @@ static int lynxfb_ops_set_par(struct fb_info *info) line_length = var->xres_virtual * var->bits_per_pixel / 8; line_length = ALIGN(line_length, crtc->line_pad); fix->line_length = line_length; - pr_info("fix->line_length = %d\n", fix->line_length); /* * var->red,green,blue,transp are need to be set by driver @@ -389,7 +388,8 @@ static int lynxfb_ops_set_par(struct fb_info *info) var->accel_flags = 0;/*FB_ACCELF_TEXT;*/ if (ret) { - pr_err("bpp %d not supported\n", var->bits_per_pixel); + dev_err(info->device, "bpp %d not supported\n", + var->bits_per_pixel); return ret; } ret = hw_sm750_crtc_set_mode(crtc, var, fix); @@ -485,15 +485,11 @@ static int lynxfb_ops_check_var(struct fb_var_screeninfo *var, par = info->par; crtc = &par->crtc; - pr_debug("check var:%dx%d-%d\n", - var->xres, - var->yres, - var->bits_per_pixel); - ret = lynxfb_set_color_offsets(info); if (ret) { - pr_err("bpp %d not supported\n", var->bits_per_pixel); + dev_err(info->device, "bpp %d not supported\n", + var->bits_per_pixel); return ret; } @@ -508,7 +504,7 @@ static int lynxfb_ops_check_var(struct fb_var_screeninfo *var, request = ALIGN(request, crtc->line_pad); request = request * var->yres_virtual; if (crtc->vidmem_size < request) { - pr_err("not enough video memory for mode\n"); + dev_err(info->device, "not enough video memory for mode\n"); return -ENOMEM; } @@ -533,7 +529,7 @@ static int lynxfb_ops_setcolreg(unsigned int regno, ret = 0; if (regno > 256) { - pr_err("regno = %d\n", regno); + dev_err(info->device, "regno = %d\n", regno); return -EINVAL; } @@ -580,7 +576,6 @@ static int lynxfb_ops_blank(int blank, struct fb_info *info) struct lynxfb_par *par; struct lynxfb_output *output; - pr_debug("blank = %d.\n", blank); par = info->par; output = &par->output; sm750_dev = par->dev; @@ -625,7 +620,6 @@ static int sm750fb_set_drv(struct lynxfb_par *par) crtc->channel = sm750_primary; crtc->o_screen = 0; crtc->v_screen = sm750_dev->pvMem; - pr_info("use simul primary mode\n"); break; case sm750_simul_sec: output->paths = sm750_pnc; @@ -767,7 +761,6 @@ static int lynxfb_set_fbinfo(struct fb_info *info, int index) crtc->cursor.mmio = sm750_dev->pvReg + 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; @@ -802,46 +795,26 @@ static int lynxfb_set_fbinfo(struct fb_info *info, int index) pdb[i], cdb[i], NULL, 8); if (ret == 1) { - pr_info("success! use specified mode:%s in %s\n", - g_fbmode[index], - mdb_desc[i]); + dev_info(info->device, + "use specified mode:%s in %s\n", + g_fbmode[index], + mdb_desc[i]); break; } else if (ret == 2) { - pr_warn("use specified mode:%s in %s,with an ignored refresh rate\n", - g_fbmode[index], - mdb_desc[i]); + dev_warn(info->device, + "use specified mode:%s in %s, with an ignored refresh rate\n", + g_fbmode[index], + mdb_desc[i]); break; - } else if (ret == 3) { - pr_warn("wanna use default mode\n"); - /*break;*/ - } else if (ret == 4) { - pr_warn("fall back to any valid mode\n"); + } else if (ret == 3 || ret == 4) { + continue; } else { - pr_warn("ret = %d,fb_find_mode failed,with %s\n", - ret, - mdb_desc[i]); + dev_warn(info->device, + "fb_find_mode failed with %s (ret=%d)\n", + mdb_desc[i], ret); } } - /* some member of info->var had been set by fb_find_mode */ - - pr_info("Member of info->var is :\n" - "xres=%d\n" - "yres=%d\n" - "xres_virtual=%d\n" - "yres_virtual=%d\n" - "xoffset=%d\n" - "yoffset=%d\n" - "bits_per_pixel=%d\n" - " ...\n", - var->xres, - var->yres, - var->xres_virtual, - var->yres_virtual, - var->xoffset, - var->yoffset, - var->bits_per_pixel); - /* set par */ par->info = info; @@ -851,7 +824,6 @@ static int lynxfb_set_fbinfo(struct fb_info *info, int index) info->pseudo_palette = &par->pseudo_palette[0]; info->screen_base = crtc->v_screen; - pr_debug("screen_base vaddr = %p\n", info->screen_base); info->screen_size = line_length * var->yres_virtual; /* set info->fix */ @@ -865,7 +837,6 @@ static int lynxfb_set_fbinfo(struct fb_info *info, int index) strscpy(fix->id, fixId[index], sizeof(fix->id)); fix->smem_start = crtc->o_screen + sm750_dev->vidmem_start; - pr_info("fix->smem_start = %lx\n", fix->smem_start); /* * according to mmap experiment from user space application, * fix->mmio_len should not larger than virtual size @@ -874,13 +845,10 @@ static int lynxfb_set_fbinfo(struct fb_info *info, int index) * data into the bound over virtual size */ fix->smem_len = crtc->vidmem_size; - pr_info("fix->smem_len = %x\n", fix->smem_len); info->screen_size = fix->smem_len; fix->line_length = line_length; fix->mmio_start = sm750_dev->vidreg_start; - pr_info("fix->mmio_start = %lx\n", fix->mmio_start); fix->mmio_len = sm750_dev->vidreg_size; - pr_info("fix->mmio_len = %x\n", fix->mmio_len); lynxfb_set_visual_mode(info); @@ -889,22 +857,12 @@ static int lynxfb_set_fbinfo(struct fb_info *info, int index) var->accel_flags = 0; var->vmode = FB_VMODE_NONINTERLACED; - pr_debug("#1 show info->cmap :\nstart=%d,len=%d,red=%p,green=%p,blue=%p,transp=%p\n", - info->cmap.start, info->cmap.len, - info->cmap.red, info->cmap.green, info->cmap.blue, - info->cmap.transp); - ret = fb_alloc_cmap(&info->cmap, 256, 0); if (ret < 0) { - pr_err("Could not allocate memory for cmap.\n"); + dev_err(info->device, "Could not allocate memory for cmap.\n"); goto exit; } - pr_debug("#2 show info->cmap :\nstart=%d,len=%d,red=%p,green=%p,blue=%p,transp=%p\n", - info->cmap.start, info->cmap.len, - info->cmap.red, info->cmap.green, info->cmap.blue, - info->cmap.transp); - exit: lynxfb_ops_check_var(var, info); return ret; @@ -934,9 +892,6 @@ static void sm750fb_setup(struct sm750_dev *sm750_dev, char *src) } while ((opt = strsep(&src, ":")) != NULL && *opt != 0) { - dev_info(&sm750_dev->pdev->dev, "opt=%s\n", opt); - dev_info(&sm750_dev->pdev->dev, "src=%s\n", src); - if (!strcmp(opt, "swap")) { swap = 1; } else if (!strcmp(opt, "nocrt")) { -- 2.43.0