diff options
Diffstat (limited to 'drivers/video')
45 files changed, 96 insertions, 706 deletions
diff --git a/drivers/video/backlight/adp8860_bl.c b/drivers/video/backlight/adp8860_bl.c index ddc7f5f0401f..8ec19425671f 100644 --- a/drivers/video/backlight/adp8860_bl.c +++ b/drivers/video/backlight/adp8860_bl.c @@ -681,7 +681,7 @@ static int adp8860_probe(struct i2c_client *client, switch (ADP8860_MANID(reg_val)) { case ADP8863_MANUFID: data->gdwn_dis = !!pdata->gdwn_dis; - /* fall through */ + fallthrough; case ADP8860_MANUFID: data->en_ambl_sens = !!pdata->en_ambl_sens; break; diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig index 5e850cc9f891..39deb22a4180 100644 --- a/drivers/video/console/Kconfig +++ b/drivers/video/console/Kconfig @@ -22,52 +22,6 @@ config VGA_CONSOLE Say Y. -config VGACON_SOFT_SCROLLBACK - bool "Enable Scrollback Buffer in System RAM" - depends on VGA_CONSOLE - default n - help - The scrollback buffer of the standard VGA console is located in - the VGA RAM. The size of this RAM is fixed and is quite small. - If you require a larger scrollback buffer, this can be placed in - System RAM which is dynamically allocated during initialization. - Placing the scrollback buffer in System RAM will slightly slow - down the console. - - If you want this feature, say 'Y' here and enter the amount of - RAM to allocate for this buffer. If unsure, say 'N'. - -config VGACON_SOFT_SCROLLBACK_SIZE - int "Scrollback Buffer Size (in KB)" - depends on VGACON_SOFT_SCROLLBACK - range 1 1024 - default "64" - help - Enter the amount of System RAM to allocate for scrollback - buffers of VGA consoles. Each 64KB will give you approximately - 16 80x25 screenfuls of scrollback buffer. - -config VGACON_SOFT_SCROLLBACK_PERSISTENT_ENABLE_BY_DEFAULT - bool "Persistent Scrollback History for each console by default" - depends on VGACON_SOFT_SCROLLBACK - default n - help - Say Y here if the scrollback history should persist by default when - switching between consoles. Otherwise, the scrollback history will be - flushed each time the console is switched. This feature can also be - enabled using the boot command line parameter - 'vgacon.scrollback_persistent=1'. - - This feature might break your tool of choice to flush the scrollback - buffer, e.g. clear(1) will work fine but Debian's clear_console(1) - will be broken, which might cause security issues. - You can use the escape sequence \e[3J instead if this feature is - activated. - - Note that a buffer of VGACON_SOFT_SCROLLBACK_SIZE is taken for each - created tty device. - So if you use a RAM-constrained system, say N here. - config MDA_CONSOLE depends on !M68K && !PARISC && ISA tristate "MDA text console (dual-headed)" diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c index a52bb3740073..17876f0179b5 100644 --- a/drivers/video/console/vgacon.c +++ b/drivers/video/console/vgacon.c @@ -165,214 +165,6 @@ static inline void vga_set_mem_top(struct vc_data *c) write_vga(12, (c->vc_visible_origin - vga_vram_base) / 2); } -#ifdef CONFIG_VGACON_SOFT_SCROLLBACK -/* software scrollback */ -struct vgacon_scrollback_info { - void *data; - int tail; - int size; - int rows; - int cnt; - int cur; - int save; - int restore; -}; - -static struct vgacon_scrollback_info *vgacon_scrollback_cur; -static struct vgacon_scrollback_info vgacon_scrollbacks[MAX_NR_CONSOLES]; -static bool scrollback_persistent = \ - IS_ENABLED(CONFIG_VGACON_SOFT_SCROLLBACK_PERSISTENT_ENABLE_BY_DEFAULT); -module_param_named(scrollback_persistent, scrollback_persistent, bool, 0000); -MODULE_PARM_DESC(scrollback_persistent, "Enable persistent scrollback for all vga consoles"); - -static void vgacon_scrollback_reset(int vc_num, size_t reset_size) -{ - struct vgacon_scrollback_info *scrollback = &vgacon_scrollbacks[vc_num]; - - if (scrollback->data && reset_size > 0) - memset(scrollback->data, 0, reset_size); - - scrollback->cnt = 0; - scrollback->tail = 0; - scrollback->cur = 0; -} - -static void vgacon_scrollback_init(int vc_num) -{ - int pitch = vga_video_num_columns * 2; - size_t size = CONFIG_VGACON_SOFT_SCROLLBACK_SIZE * 1024; - int rows = size / pitch; - void *data; - - data = kmalloc_array(CONFIG_VGACON_SOFT_SCROLLBACK_SIZE, 1024, - GFP_NOWAIT); - - vgacon_scrollbacks[vc_num].data = data; - vgacon_scrollback_cur = &vgacon_scrollbacks[vc_num]; - - vgacon_scrollback_cur->rows = rows - 1; - vgacon_scrollback_cur->size = rows * pitch; - - vgacon_scrollback_reset(vc_num, size); -} - -static void vgacon_scrollback_switch(int vc_num) -{ - if (!scrollback_persistent) - vc_num = 0; - - if (!vgacon_scrollbacks[vc_num].data) { - vgacon_scrollback_init(vc_num); - } else { - if (scrollback_persistent) { - vgacon_scrollback_cur = &vgacon_scrollbacks[vc_num]; - } else { - size_t size = CONFIG_VGACON_SOFT_SCROLLBACK_SIZE * 1024; - - vgacon_scrollback_reset(vc_num, size); - } - } -} - -static void vgacon_scrollback_startup(void) -{ - vgacon_scrollback_cur = &vgacon_scrollbacks[0]; - vgacon_scrollback_init(0); -} - -static void vgacon_scrollback_update(struct vc_data *c, int t, int count) -{ - void *p; - - if (!vgacon_scrollback_cur->data || !vgacon_scrollback_cur->size || - c->vc_num != fg_console) - return; - - p = (void *) (c->vc_origin + t * c->vc_size_row); - - while (count--) { - if ((vgacon_scrollback_cur->tail + c->vc_size_row) > - vgacon_scrollback_cur->size) - vgacon_scrollback_cur->tail = 0; - - scr_memcpyw(vgacon_scrollback_cur->data + - vgacon_scrollback_cur->tail, - p, c->vc_size_row); - - vgacon_scrollback_cur->cnt++; - p += c->vc_size_row; - vgacon_scrollback_cur->tail += c->vc_size_row; - - if (vgacon_scrollback_cur->tail >= vgacon_scrollback_cur->size) - vgacon_scrollback_cur->tail = 0; - - if (vgacon_scrollback_cur->cnt > vgacon_scrollback_cur->rows) - vgacon_scrollback_cur->cnt = vgacon_scrollback_cur->rows; - - vgacon_scrollback_cur->cur = vgacon_scrollback_cur->cnt; - } -} - -static void vgacon_restore_screen(struct vc_data *c) -{ - c->vc_origin = c->vc_visible_origin; - vgacon_scrollback_cur->save = 0; - - if (!vga_is_gfx && !vgacon_scrollback_cur->restore) { - scr_memcpyw((u16 *) c->vc_origin, (u16 *) c->vc_screenbuf, - c->vc_screenbuf_size > vga_vram_size ? - vga_vram_size : c->vc_screenbuf_size); - vgacon_scrollback_cur->restore = 1; - vgacon_scrollback_cur->cur = vgacon_scrollback_cur->cnt; - } -} - -static void vgacon_scrolldelta(struct vc_data *c, int lines) -{ - int start, end, count, soff; - - if (!lines) { - vgacon_restore_screen(c); - return; - } - - if (!vgacon_scrollback_cur->data) - return; - - if (!vgacon_scrollback_cur->save) { - vgacon_cursor(c, CM_ERASE); - vgacon_save_screen(c); - c->vc_origin = (unsigned long)c->vc_screenbuf; - vgacon_scrollback_cur->save = 1; - } - - vgacon_scrollback_cur->restore = 0; - start = vgacon_scrollback_cur->cur + lines; - end = start + abs(lines); - - if (start < 0) - start = 0; - - if (start > vgacon_scrollback_cur->cnt) - start = vgacon_scrollback_cur->cnt; - - if (end < 0) - end = 0; - - if (end > vgacon_scrollback_cur->cnt) - end = vgacon_scrollback_cur->cnt; - - vgacon_scrollback_cur->cur = start; - count = end - start; - soff = vgacon_scrollback_cur->tail - - ((vgacon_scrollback_cur->cnt - end) * c->vc_size_row); - soff -= count * c->vc_size_row; - - if (soff < 0) - soff += vgacon_scrollback_cur->size; - - count = vgacon_scrollback_cur->cnt - start; - - if (count > c->vc_rows) - count = c->vc_rows; - - if (count) { - int copysize; - - int diff = c->vc_rows - count; - void *d = (void *) c->vc_visible_origin; - void *s = (void *) c->vc_screenbuf; - - count *= c->vc_size_row; - /* how much memory to end of buffer left? */ - copysize = min(count, vgacon_scrollback_cur->size - soff); - scr_memcpyw(d, vgacon_scrollback_cur->data + soff, copysize); - d += copysize; - count -= copysize; - - if (count) { - scr_memcpyw(d, vgacon_scrollback_cur->data, count); - d += count; - } - - if (diff) - scr_memcpyw(d, s, diff * c->vc_size_row); - } else - vgacon_cursor(c, CM_MOVE); -} - -static void vgacon_flush_scrollback(struct vc_data *c) -{ - size_t size = CONFIG_VGACON_SOFT_SCROLLBACK_SIZE * 1024; - - vgacon_scrollback_reset(c->vc_num, size); -} -#else -#define vgacon_scrollback_startup(...) do { } while (0) -#define vgacon_scrollback_init(...) do { } while (0) -#define vgacon_scrollback_update(...) do { } while (0) -#define vgacon_scrollback_switch(...) do { } while (0) - static void vgacon_restore_screen(struct vc_data *c) { if (c->vc_origin != c->vc_visible_origin) @@ -386,11 +178,6 @@ static void vgacon_scrolldelta(struct vc_data *c, int lines) vga_set_mem_top(c); } -static void vgacon_flush_scrollback(struct vc_data *c) -{ -} -#endif /* CONFIG_VGACON_SOFT_SCROLLBACK */ - static const char *vgacon_startup(void) { const char *display_desc = NULL; @@ -573,10 +360,7 @@ static const char *vgacon_startup(void) vgacon_xres = screen_info.orig_video_cols * VGA_FONTWIDTH; vgacon_yres = vga_scan_lines; - if (!vga_init_done) { - vgacon_scrollback_startup(); - vga_init_done = true; - } + vga_init_done = true; return display_desc; } @@ -869,7 +653,6 @@ static int vgacon_switch(struct vc_data *c) vgacon_doresize(c, c->vc_cols, c->vc_rows); } - vgacon_scrollback_switch(c->vc_num); return 0; /* Redrawing not needed */ } @@ -1386,7 +1169,6 @@ static bool vgacon_scroll(struct vc_data *c, unsigned int t, unsigned int b, oldo = c->vc_origin; delta = lines * c->vc_size_row; if (dir == SM_UP) { - vgacon_scrollback_update(c, t, lines); if (c->vc_scr_end + delta >= vga_vram_end) { scr_memcpyw((u16 *) vga_vram_base, (u16 *) (oldo + delta), @@ -1450,7 +1232,6 @@ const struct consw vga_con = { .con_save_screen = vgacon_save_screen, .con_build_attr = vgacon_build_attr, .con_invert_region = vgacon_invert_region, - .con_flush_scrollback = vgacon_flush_scrollback, }; EXPORT_SYMBOL(vga_con); diff --git a/drivers/video/fbdev/acornfb.c b/drivers/video/fbdev/acornfb.c index 09a9ad901dad..bcc92aecf666 100644 --- a/drivers/video/fbdev/acornfb.c +++ b/drivers/video/fbdev/acornfb.c @@ -857,7 +857,7 @@ static void acornfb_parse_dram(char *opt) case 'M': case 'm': size *= 1024; - /* Fall through */ + fallthrough; case 'K': case 'k': size *= 1024; diff --git a/drivers/video/fbdev/arcfb.c b/drivers/video/fbdev/arcfb.c index 6f7838979f0a..ae3d8e8b8d33 100644 --- a/drivers/video/fbdev/arcfb.c +++ b/drivers/video/fbdev/arcfb.c @@ -419,7 +419,7 @@ static int arcfb_ioctl(struct fb_info *info, schedule(); finish_wait(&arcfb_waitq, &wait); } - /* fall through */ + fallthrough; case FBIO_GETCONTROL2: { diff --git a/drivers/video/fbdev/atmel_lcdfb.c b/drivers/video/fbdev/atmel_lcdfb.c index 1e252192569a..bfd2f00b403b 100644 --- a/drivers/video/fbdev/atmel_lcdfb.c +++ b/drivers/video/fbdev/atmel_lcdfb.c @@ -508,7 +508,7 @@ static int atmel_lcdfb_check_var(struct fb_var_screeninfo *var, case 32: var->transp.offset = 24; var->transp.length = 8; - /* fall through */ + fallthrough; case 24: if (pdata->lcd_wiring_mode == ATMEL_LCDC_WIRING_RGB) { /* RGB:888 mode */ @@ -633,7 +633,7 @@ static int atmel_lcdfb_set_par(struct fb_info *info) case 2: value |= ATMEL_LCDC_PIXELSIZE_2; break; case 4: value |= ATMEL_LCDC_PIXELSIZE_4; break; case 8: value |= ATMEL_LCDC_PIXELSIZE_8; break; - case 15: /* fall through */ + case 15: case 16: value |= ATMEL_LCDC_PIXELSIZE_16; break; case 24: value |= ATMEL_LCDC_PIXELSIZE_24; break; case 32: value |= ATMEL_LCDC_PIXELSIZE_32; break; diff --git a/drivers/video/fbdev/aty/radeon_pm.c b/drivers/video/fbdev/aty/radeon_pm.c index 7c4483c7f313..f3d8123d7f36 100644 --- a/drivers/video/fbdev/aty/radeon_pm.c +++ b/drivers/video/fbdev/aty/radeon_pm.c @@ -1208,11 +1208,11 @@ static void radeon_pm_enable_dll_m10(struct radeonfb_info *rinfo) case 1: if (mc & 0x4) break; - /* fall through */ + fallthrough; case 2: dll_sleep_mask |= MDLL_R300_RDCK__MRDCKB_SLEEP; dll_reset_mask |= MDLL_R300_RDCK__MRDCKB_RESET; - /* fall through */ + fallthrough; case 0: dll_sleep_mask |= MDLL_R300_RDCK__MRDCKA_SLEEP; dll_reset_mask |= MDLL_R300_RDCK__MRDCKA_RESET; @@ -1221,7 +1221,7 @@ static void radeon_pm_enable_dll_m10(struct radeonfb_info *rinfo) case 1: if (!(mc & 0x4)) break; - /* fall through */ + fallthrough; case 2: dll_sleep_mask |= MDLL_R300_RDCK__MRDCKD_SLEEP; dll_reset_mask |= MDLL_R300_RDCK__MRDCKD_RESET; diff --git a/drivers/video/fbdev/cirrusfb.c b/drivers/video/fbdev/cirrusfb.c index 3df64a973194..15a9ee7cd734 100644 --- a/drivers/video/fbdev/cirrusfb.c +++ b/drivers/video/fbdev/cirrusfb.c @@ -1476,11 +1476,11 @@ static void init_vgachip(struct fb_info *info) mdelay(100); /* mode */ vga_wgfx(cinfo->regbase, CL_GR31, 0x00); - /* fall through */ + fallthrough; case BT_GD5480: /* from Klaus' NetBSD driver: */ vga_wgfx(cinfo->regbase, CL_GR2F, 0x00); - /* fall through */ + fallthrough; case BT_ALPINE: /* put blitter into 542x compat */ vga_wgfx(cinfo->regbase, CL_GR33, 0x00); diff --git a/drivers/video/fbdev/controlfb.c b/drivers/video/fbdev/controlfb.c index 9c4f1be856ec..2df56bd303d2 100644 --- a/drivers/video/fbdev/controlfb.c +++ b/drivers/video/fbdev/controlfb.c @@ -49,6 +49,8 @@ #include <linux/cuda.h> #ifdef CONFIG_PPC_PMAC #include <asm/prom.h> +#endif +#ifdef CONFIG_BOOTX_TEXT #include <asm/btext.h> #endif @@ -713,7 +715,7 @@ static int controlfb_blank(int blank_mode, struct fb_info *info) break; case FB_BLANK_POWERDOWN: ctrl &= ~0x33; - /* fall through */ + fallthrough; case FB_BLANK_NORMAL: ctrl |= 0x400; break; diff --git a/drivers/video/fbdev/core/bitblit.c b/drivers/video/fbdev/core/bitblit.c index 4e6cbc24346d..9725ecd1255b 100644 --- a/drivers/video/fbdev/core/bitblit.c +++ b/drivers/video/fbdev/core/bitblit.c @@ -234,7 +234,7 @@ static void bit_clear_margins(struct vc_data *vc, struct fb_info *info, } static void bit_cursor(struct vc_data *vc, struct fb_info *info, int mode, - int softback_lines, int fg, int bg) + int fg, int bg) { struct fb_cursor cursor; struct fbcon_ops *ops = info->fbcon_par; @@ -247,15 +247,6 @@ static void bit_cursor(struct vc_data *vc, struct fb_info *info, int mode, cursor.set = 0; - if (softback_lines) { - if (y + softback_lines >= vc->vc_rows) { - mode = CM_ERASE; - ops->cursor_flash = 0; - return; - } else - y += softback_lines; - } - c = scr_readw((u16 *) vc->vc_pos); attribute = get_attribute(info, c); src = vc->vc_font.data + ((c & charmask) * (w * vc->vc_font.height)); diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c index 8a31fc2b2258..0b49b0f44edf 100644 --- a/drivers/video/fbdev/core/fbcon.c +++ b/drivers/video/fbdev/core/fbcon.c @@ -122,12 +122,6 @@ static int logo_lines; /* logo_shown is an index to vc_cons when >= 0; otherwise follows FBCON_LOGO enums. */ static int logo_shown = FBCON_LOGO_CANSHOW; -/* Software scrollback */ -static int fbcon_softback_size = 32768; -static unsigned long softback_buf, softback_curr; -static unsigned long softback_in; -static unsigned long softback_top, softback_end; -static int softback_lines; /* console mappings */ static int first_fb_vc; static int last_fb_vc = MAX_NR_CONSOLES - 1; @@ -167,8 +161,6 @@ static int margin_color; static const struct consw fb_con; -#define CM_SOFTBACK (8) - #define advance_row(p, delta) (unsigned short *)((unsigned long)(p) + (delta) * vc->vc_size_row) static int fbcon_set_origin(struct vc_data *); @@ -373,18 +365,6 @@ static int get_color(struct vc_data *vc, struct fb_info *info, return color; } -static void fbcon_update_softback(struct vc_data *vc) -{ - int l = fbcon_softback_size / vc->vc_size_row; - - if (l > 5) - softback_end = softback_buf + l * vc->vc_size_row; - else - /* Smaller scrollback makes no sense, and 0 would screw - the operation totally */ - softback_top = 0; -} - static void fb_flashcursor(struct work_struct *work) { struct fb_info *info = container_of(work, struct fb_info, queue); @@ -414,7 +394,7 @@ static void fb_flashcursor(struct work_struct *work) c = scr_readw((u16 *) vc->vc_pos); mode = (!ops->cursor_flash || ops->cursor_state.enable) ? CM_ERASE : CM_DRAW; - ops->cursor(vc, info, mode, softback_lines, get_color(vc, info, c, 1), + ops->cursor(vc, info, mode, get_color(vc, info, c, 1), get_color(vc, info, c, 0)); console_unlock(); } @@ -471,13 +451,7 @@ static int __init fb_console_setup(char *this_opt) } if (!strncmp(options, "scrollback:", 11)) { - options += 11; - if (*options) { - fbcon_softback_size = simple_strtoul(options, &options, 0); - if (*options == 'k' || *options == 'K') { - fbcon_softback_size *= 1024; - } - } + pr_warn("Ignoring scrollback size option\n"); continue; } @@ -1022,31 +996,6 @@ static const char *fbcon_startup(void) set_blitting_type(vc, info); - if (info->fix.type != FB_TYPE_TEXT) { - if (fbcon_softback_size) { - if (!softback_buf) { - softback_buf = - (unsigned long) - kvmalloc(fbcon_softback_size, - GFP_KERNEL); - if (!softback_buf) { - fbcon_softback_size = 0; - softback_top = 0; - } - } - } else { - if (softback_buf) { - kvfree((void *) softback_buf); - softback_buf = 0; - softback_top = 0; - } - } - if (softback_buf) - softback_in = softback_top = softback_curr = - softback_buf; - softback_lines = 0; - } - /* Setup default font */ if (!p->fontdata && !vc->vc_font.data) { if (!fontname[0] || !(font = find_font(fontname))) @@ -1220,9 +1169,6 @@ static void fbcon_init(struct vc_data *vc, int init) if (logo) fbcon_prepare_logo(vc, info, cols, rows, new_cols, new_rows); - if (vc == svc && softback_buf) - fbcon_update_softback(vc); - if (ops->rotate_font && ops->rotate_font(info, vc)) { ops->rotate = FB_ROTATE_UR; set_blitting_type(vc, info); @@ -1385,7 +1331,6 @@ static void fbcon_cursor(struct vc_data *vc, int mode) { struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; struct fbcon_ops *ops = info->fbcon_par; - int y; int c = scr_readw((u16 *) vc->vc_pos); ops->cur_blink_jiffies = msecs_to_jiffies(vc->vc_cur_blink_ms); @@ -1399,16 +1344,8 @@ static void fbcon_cursor(struct vc_data *vc, int mode) fbcon_add_cursor_timer(info); ops->cursor_flash = (mode == CM_ERASE) ? 0 : 1; - if (mode & CM_SOFTBACK) { - mode &= ~CM_SOFTBACK; - y = softback_lines; - } else { - if (softback_lines) - fbcon_set_origin(vc); - y = 0; - } - ops->cursor(vc, info, mode, y, get_color(vc, info, c, 1), + ops->cursor(vc, info, mode, get_color(vc, info, c, 1), get_color(vc, info, c, 0)); } @@ -1479,8 +1416,6 @@ static void fbcon_set_disp(struct fb_info *info, struct fb_var_screeninfo *var, if (con_is_visible(vc)) { update_screen(vc); - if (softback_buf) - fbcon_update_softback(vc); } } @@ -1618,99 +1553,6 @@ static __inline__ void ypan_down_redraw(struct vc_data *vc, int t, int count) scrollback_current = 0; } -static void fbcon_redraw_softback(struct vc_data *vc, struct fbcon_display *p, - long delta) -{ - int count = vc->vc_rows; - unsigned short *d, *s; - unsigned long n; - int line = 0; - - d = (u16 *) softback_curr; - if (d == (u16 *) softback_in) - d = (u16 *) vc->vc_origin; - n = softback_curr + delta * vc->vc_size_row; - softback_lines -= delta; - if (delta < 0) { - if (softback_curr < softback_top && n < softback_buf) { - n += softback_end - softback_buf; - if (n < softback_top) { - softback_lines -= - (softback_top - n) / vc->vc_size_row; - n = softback_top; - } - } else if (softback_curr >= softback_top - && n < softback_top) { - softback_lines -= - (softback_top - n) / vc->vc_size_row; - n = softback_top; - } - } else { - if (softback_curr > softback_in && n >= softback_end) { - n += softback_buf - softback_end; - if (n > softback_in) { - n = softback_in; - softback_lines = 0; - } - } else if (softback_curr <= softback_in && n > softback_in) { - n = softback_in; - softback_lines = 0; - } - } - if (n == softback_curr) - return; - softback_curr = n; - s = (u16 *) softback_curr; - if (s == (u16 *) softback_in) - s = (u16 *) vc->vc_origin; - while (count--) { - unsigned short *start; - unsigned short *le; - unsigned short c; - int x = 0; - unsigned short attr = 1; - - start = s; - le = advance_row(s, 1); - do { - c = scr_readw(s); - if (attr != (c & 0xff00)) { - attr = c & 0xff00; - if (s > start) { - fbcon_putcs(vc, start, s - start, - line, x); - x += s - start; - start = s; - } - } - if (c == scr_readw(d)) { - if (s > start) { - fbcon_putcs(vc, start, s - start, - line, x); - x += s - start + 1; - start = s + 1; - } else { - x++; - start++; - } - } - s++; - d++; - } while (s < le); - if (s > start) - fbcon_putcs(vc, start, s - start, line, x); - line++; - if (d == (u16 *) softback_end) - d = (u16 *) softback_buf; - if (d == (u16 *) softback_in) - d = (u16 *) vc->vc_origin; - if (s == (u16 *) softback_end) - s = (u16 *) softback_buf; - if (s == (u16 *) softback_in) - s = (u16 *) vc->vc_origin; - } -} - static void fbcon_redraw_move(struct vc_data *vc, struct fbcon_display *p, int line, int count, int dy) { @@ -1850,31 +1692,6 @@ static void fbcon_redraw(struct vc_data *vc, struct fbcon_display *p, } } -static inline void fbcon_softback_note(struct vc_data *vc, int t, - int count) -{ - unsigned short *p; - - if (vc->vc_num != fg_console) - return; - p = (unsigned short *) (vc->vc_origin + t * vc->vc_size_row); - - while (count) { - scr_memcpyw((u16 *) softback_in, p, vc->vc_size_row); - count--; - p = advance_row(p, 1); - softback_in += vc->vc_size_row; - if (softback_in == softback_end) - softback_in = softback_buf; - if (softback_in == softback_top) { - softback_top += vc->vc_size_row; - if (softback_top == softback_end) - softback_top = softback_buf; - } - } - softback_curr = softback_in; -} - static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b, enum con_scroll dir, unsigned int count) { @@ -1897,8 +1714,6 @@ static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b, case SM_UP: if (count > vc->vc_rows) /* Maximum realistic size */ count = vc->vc_rows; - if (softback_top) - fbcon_softback_note(vc, t, count); if (logo_shown >= 0) goto redraw_up; switch (p->scrollmode) { @@ -2191,6 +2006,9 @@ static void updatescrollmode(struct fbcon_display *p, } } +#define PITCH(w) (((w) + 7) >> 3) +#define CALC_FONTSZ(h, p, c) ((h) * (p) * (c)) /* size = height * pitch * charcount */ + static int fbcon_resize(struct vc_data *vc, unsigned int width, unsigned int height, unsigned int user) { @@ -2200,6 +2018,24 @@ static int fbcon_resize(struct vc_data *vc, unsigned int width, struct fb_var_screeninfo var = info->var; int x_diff, y_diff, virt_w, virt_h, virt_fw, virt_fh; + if (ops->p && ops->p->userfont && FNTSIZE(vc->vc_font.data)) { + int size; + int pitch = PITCH(vc->vc_font.width); + + /* + * If user font, ensure that a possible change to user font + * height or width will not allow a font data out-of-bounds access. + * NOTE: must use original charcount in calculation as font + * charcount can change and cannot be used to determine the + * font data allocated size. + */ + if (pitch <= 0) + return -EINVAL; + size = CALC_FONTSZ(vc->vc_font.height, pitch, FNTCHARCNT(vc->vc_font.data)); + if (size > FNTSIZE(vc->vc_font.data)) + return -EINVAL; + } + virt_w = FBCON_SWAP(ops->rotate, width, height); virt_h = FBCON_SWAP(ops->rotate, height, width); virt_fw = FBCON_SWAP(ops->rotate, vc->vc_font.width, @@ -2248,14 +2084,6 @@ static int fbcon_switch(struct vc_data *vc) info = registered_fb[con2fb_map[vc->vc_num]]; ops = info->fbcon_par; - if (softback_top) { - if (softback_lines) - fbcon_set_origin(vc); - softback_top = softback_curr = softback_in = softback_buf; - softback_lines = 0; - fbcon_update_softback(vc); - } - if (logo_shown >= 0) { struct vc_data *conp2 = vc_cons[logo_shown].d; @@ -2579,9 +2407,6 @@ static int fbcon_do_set_font(struct vc_data *vc, int w, int h, int cnt; char *old_data = NULL; - if (con_is_visible(vc) && softback_lines) - fbcon_set_origin(vc); - resize = (w != vc->vc_font.width) || (h != vc->vc_font.height); if (p->userfont) old_data = vc->vc_font.data; @@ -2607,8 +2432,6 @@ static int fbcon_do_set_font(struct vc_data *vc, int w, int h, cols /= w; rows /= h; vc_resize(vc, cols, rows); - if (con_is_visible(vc) && softback_buf) - fbcon_update_softback(vc); } else if (con_is_visible(vc) && vc->vc_mode == KD_TEXT) { fbcon_clear_margins(vc, 0); @@ -2652,7 +2475,7 @@ static int fbcon_set_font(struct vc_data *vc, struct console_font *font, int size; int i, csum; u8 *new_data, *data = font->data; - int pitch = (font->width+7) >> 3; + int pitch = PITCH(font->width); /* Is there a reason why fbconsole couldn't handle any charcount >256? * If not this check should be changed to charcount < 256 */ @@ -2668,7 +2491,7 @@ static int fbcon_set_font(struct vc_data *vc, struct console_font *font, if (fbcon_invalid_charcount(info, charcount)) return -EINVAL; - size = h * pitch * charcount; + size = CALC_FONTSZ(h, pitch, charcount); new_data = kmalloc(FONT_EXTRA_WORDS * sizeof(int) + size, GFP_USER); @@ -2767,19 +2590,7 @@ static void fbcon_set_palette(struct vc_data *vc, const unsigned char *table) static u16 *fbcon_screen_pos(struct vc_data *vc, int offset) { - unsigned long p; - int line; - - if (vc->vc_num != fg_console || !softback_lines) - return (u16 *) (vc->vc_origin + offset); - line = offset / vc->vc_size_row; - if (line >= softback_lines) - return (u16 *) (vc->vc_origin + offset - - softback_lines * vc->vc_size_row); - p = softback_curr + offset; - if (p >= softback_end) - p += softback_buf - softback_end; - return (u16 *) p; + return (u16 *) (vc->vc_origin + offset); } static unsigned long fbcon_getxy(struct vc_data *vc, unsigned long pos, @@ -2793,22 +2604,7 @@ static unsigned long fbcon_getxy(struct vc_data *vc, unsigned long pos, x = offset % vc->vc_cols; y = offset / vc->vc_cols; - if (vc->vc_num == fg_console) - y += softback_lines; ret = pos + (vc->vc_cols - x) * 2; - } else if (vc->vc_num == fg_console && softback_lines) { - unsigned long offset = pos - softback_curr; - - if (pos < softback_curr) - offset += softback_end - softback_buf; - offset /= 2; - x = offset % vc->vc_cols; - y = offset / vc->vc_cols; - ret = pos + (vc->vc_cols - x) * 2; - if (ret == softback_end) - ret = softback_buf; - if (ret == softback_in) - ret = vc->vc_origin; } else { /* Should not happen */ x = y = 0; @@ -2836,106 +2632,11 @@ static void fbcon_invert_region(struct vc_data *vc, u16 * p, int cnt) a = ((a) & 0x88ff) | (((a) & 0x7000) >> 4) | (((a) & 0x0700) << 4); scr_writew(a, p++); - if (p == (u16 *) softback_end) - p = (u16 *) softback_buf; - if (p == (u16 *) softback_in) - p = (u16 *) vc->vc_origin; - } -} - -static void fbcon_scrolldelta(struct vc_data *vc, int lines) -{ - struct fb_info *info = registered_fb[con2fb_map[fg_console]]; - struct fbcon_ops *ops = info->fbcon_par; - struct fbcon_display *disp = &fb_display[fg_console]; - int offset, limit, scrollback_old; - - if (softback_top) { - if (vc->vc_num != fg_console) - return; - if (vc->vc_mode != KD_TEXT || !lines) - return; - if (logo_shown >= 0) { - struct vc_data *conp2 = vc_cons[logo_shown].d; - - if (conp2->vc_top == logo_lines - && conp2->vc_bottom == conp2->vc_rows) - conp2->vc_top = 0; - if (logo_shown == vc->vc_num) { - unsigned long p, q; - int i; - - p = softback_in; - q = vc->vc_origin + - logo_lines * vc->vc_size_row; - for (i = 0; i < logo_lines; i++) { - if (p == softback_top) - break; - if (p == softback_buf) - p = softback_end; - p -= vc->vc_size_row; - q -= vc->vc_size_row; - scr_memcpyw((u16 *) q, (u16 *) p, - vc->vc_size_row); - } - softback_in = softback_curr = p; - update_region(vc, vc->vc_origin, - logo_lines * vc->vc_cols); - } - logo_shown = FBCON_LOGO_CANSHOW; - } - fbcon_cursor(vc, CM_ERASE | CM_SOFTBACK); - fbcon_redraw_softback(vc, disp, lines); - fbcon_cursor(vc, CM_DRAW | CM_SOFTBACK); - return; } - - if (!scrollback_phys_max) - return; - - scrollback_old = scrollback_current; - scrollback_current -= lines; - if (scrollback_current < 0) - scrollback_current = 0; - else if (scrollback_current > scrollback_max) - scrollback_current = scrollback_max; - if (scrollback_current == scrollback_old) - return; - - if (fbcon_is_inactive(vc, info)) - return; - - fbcon_cursor(vc, CM_ERASE); - - offset = disp->yscroll - scrollback_current; - limit = disp->vrows; - switch (disp->scrollmode) { - case SCROLL_WRAP_MOVE: - info->var.vmode |= FB_VMODE_YWRAP; - break; - case SCROLL_PAN_MOVE: - case SCROLL_PAN_REDRAW: - limit -= vc->vc_rows; - info->var.vmode &= ~FB_VMODE_YWRAP; - break; - } - if (offset < 0) - offset += limit; - else if (offset >= limit) - offset -= limit; - - ops->var.xoffset = 0; - ops->var.yoffset = offset * vc->vc_font.height; - ops->update_start(info); - - if (!scrollback_current) - fbcon_cursor(vc, CM_DRAW); } static int fbcon_set_origin(struct vc_data *vc) { - if (softback_lines) - fbcon_scrolldelta(vc, softback_lines); return 0; } @@ -2999,8 +2700,6 @@ static void fbcon_modechanged(struct fb_info *info) fbcon_set_palette(vc, color_table); update_screen(vc); - if (softback_buf) - fbcon_update_softback(vc); } } @@ -3411,7 +3110,6 @@ static const struct consw fb_con = { .con_font_default = fbcon_set_def_font, .con_font_copy = fbcon_copy_font, .con_set_palette = fbcon_set_palette, - .con_scrolldelta = fbcon_scrolldelta, .con_set_origin = fbcon_set_origin, .con_invert_region = fbcon_invert_region, .con_screen_pos = fbcon_screen_pos, @@ -3646,9 +3344,6 @@ static void fbcon_exit(void) } #endif - kvfree((void *)softback_buf); - softback_buf = 0UL; - for_each_registered_fb(i) { int pending = 0; diff --git a/drivers/video/fbdev/core/fbcon.h b/drivers/video/fbdev/core/fbcon.h index 20dea853765f..78bb14c03643 100644 --- a/drivers/video/fbdev/core/fbcon.h +++ b/drivers/video/fbdev/core/fbcon.h @@ -62,7 +62,7 @@ struct fbcon_ops { void (*clear_margins)(struct vc_data *vc, struct fb_info *info, int color, int bottom_only); void (*cursor)(struct vc_data *vc, struct fb_info *info, int mode, - int softback_lines, int fg, int bg); + int fg, int bg); int (*update_start)(struct fb_info *info); int (*rotate_font)(struct fb_info *info, struct vc_data *vc); struct fb_var_screeninfo var; /* copy of the current fb_var_screeninfo */ diff --git a/drivers/video/fbdev/core/fbcon_ccw.c b/drivers/video/fbdev/core/fbcon_ccw.c index 5b177131e062..bbd869efd03b 100644 --- a/drivers/video/fbdev/core/fbcon_ccw.c +++ b/drivers/video/fbdev/core/fbcon_ccw.c @@ -219,7 +219,7 @@ static void ccw_clear_margins(struct vc_data *vc, struct fb_info *info, } static void ccw_cursor(struct vc_data *vc, struct fb_info *info, int mode, - int softback_lines, int fg, int bg) + int fg, int bg) { struct fb_cursor cursor; struct fbcon_ops *ops = info->fbcon_par; @@ -236,15 +236,6 @@ static void ccw_cursor(struct vc_data *vc, struct fb_info *info, int mode, cursor.set = 0; - if (softback_lines) { - if (y + softback_lines >= vc->vc_rows) { - mode = CM_ERASE; - ops->cursor_flash = 0; - return; - } else - y += softback_lines; - } - c = scr_readw((u16 *) vc->vc_pos); attribute = get_attribute(info, c); src = ops->fontbuffer + ((c & charmask) * (w * vc->vc_font.width)); diff --git a/drivers/video/fbdev/core/fbcon_cw.c b/drivers/video/fbdev/core/fbcon_cw.c index 894d01a62f30..a34cbe8e9874 100644 --- a/drivers/video/fbdev/core/fbcon_cw.c +++ b/drivers/video/fbdev/core/fbcon_cw.c @@ -202,7 +202,7 @@ static void cw_clear_margins(struct vc_data *vc, struct fb_info *info, } static void cw_cursor(struct vc_data *vc, struct fb_info *info, int mode, - int softback_lines, int fg, int bg) + int fg, int bg) { struct fb_cursor cursor; struct fbcon_ops *ops = info->fbcon_par; @@ -219,15 +219,6 @@ static void cw_cursor(struct vc_data *vc, struct fb_info *info, int mode, cursor.set = 0; - if (softback_lines) { - if (y + softback_lines >= vc->vc_rows) { - mode = CM_ERASE; - ops->cursor_flash = 0; - return; - } else - y += softback_lines; - } - c = scr_readw((u16 *) vc->vc_pos); attribute = get_attribute(info, c); src = ops->fontbuffer + ((c & charmask) * (w * vc->vc_font.width)); diff --git a/drivers/video/fbdev/core/fbcon_ud.c b/drivers/video/fbdev/core/fbcon_ud.c index 01b87f278d79..199cbc7abe35 100644 --- a/drivers/video/fbdev/core/fbcon_ud.c +++ b/drivers/video/fbdev/core/fbcon_ud.c @@ -249,7 +249,7 @@ static void ud_clear_margins(struct vc_data *vc, struct fb_info *info, } static void ud_cursor(struct vc_data *vc, struct fb_info *info, int mode, - int softback_lines, int fg, int bg) + int fg, int bg) { struct fb_cursor cursor; struct fbcon_ops *ops = info->fbcon_par; @@ -267,15 +267,6 @@ static void ud_cursor(struct vc_data *vc, struct fb_info *info, int mode, cursor.set = 0; - if (softback_lines) { - if (y + softback_lines >= vc->vc_rows) { - mode = CM_ERASE; - ops->cursor_flash = 0; - return; - } else - y += softback_lines; - } - c = scr_readw((u16 *) vc->vc_pos); attribute = get_attribute(info, c); src = ops->fontbuffer + ((c & charmask) * (w * vc->vc_font.height)); diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c index da7c88ffaa6a..6815bfb7f572 100644 --- a/drivers/video/fbdev/core/fbmem.c +++ b/drivers/video/fbdev/core/fbmem.c @@ -1306,7 +1306,7 @@ static long fb_compat_ioctl(struct file *file, unsigned int cmd, case FBIOGET_CON2FBMAP: case FBIOPUT_CON2FBMAP: arg = (unsigned long) compat_ptr(arg); - /* fall through */ + fallthrough; case FBIOBLANK: ret = do_fb_ioctl(info, cmd, arg); break; diff --git a/drivers/video/fbdev/core/tileblit.c b/drivers/video/fbdev/core/tileblit.c index 1dfaff0881fb..31b85b71cc37 100644 --- a/drivers/video/fbdev/core/tileblit.c +++ b/drivers/video/fbdev/core/tileblit.c @@ -80,7 +80,7 @@ static void tile_clear_margins(struct vc_data *vc, struct fb_info *info, } static void tile_cursor(struct vc_data *vc, struct fb_info *info, int mode, - int softback_lines, int fg, int bg) + int fg, int bg) { struct fb_tilecursor cursor; int use_sw = vc->vc_cursor_type & CUR_SW; diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c index 65491ae74808..e57c00824965 100644 --- a/drivers/video/fbdev/efifb.c +++ b/drivers/video/fbdev/efifb.c @@ -453,7 +453,7 @@ static int efifb_probe(struct platform_device *dev) info->apertures->ranges[0].base = efifb_fix.smem_start; info->apertures->ranges[0].size = size_remap; - if (efi_enabled(EFI_BOOT) && + if (efi_enabled(EFI_MEMMAP) && !efi_mem_desc_lookup(efifb_fix.smem_start, &md)) { if ((efifb_fix.smem_start + efifb_fix.smem_len) > (md.phys_addr + (md.num_pages << EFI_PAGE_SHIFT))) { diff --git a/drivers/video/fbdev/fsl-diu-fb.c b/drivers/video/fbdev/fsl-diu-fb.c index 67ebfe5c9f1d..a547c21c7e92 100644 --- a/drivers/video/fbdev/fsl-diu-fb.c +++ b/drivers/video/fbdev/fsl-diu-fb.c @@ -1287,7 +1287,7 @@ static int fsl_diu_ioctl(struct fb_info *info, unsigned int cmd, dev_warn(info->dev, "MFB_SET_PIXFMT value of 0x%08x is deprecated.\n", MFB_SET_PIXFMT_OLD); - /* fall through */ + fallthrough; case MFB_SET_PIXFMT: if (copy_from_user(&pix_fmt, buf, sizeof(pix_fmt))) return -EFAULT; @@ -1297,7 +1297,7 @@ static int fsl_diu_ioctl(struct fb_info *info, unsigned int cmd, dev_warn(info->dev, "MFB_GET_PIXFMT value of 0x%08x is deprecated.\n", MFB_GET_PIXFMT_OLD); - /* fall through */ + fallthrough; case MFB_GET_PIXFMT: pix_fmt = ad->pix_fmt; if (copy_to_user(buf, &pix_fmt, sizeof(pix_fmt))) diff --git a/drivers/video/fbdev/gxt4500.c b/drivers/video/fbdev/gxt4500.c index 13ded3a10708..e5475ae1e158 100644 --- a/drivers/video/fbdev/gxt4500.c +++ b/drivers/video/fbdev/gxt4500.c @@ -534,7 +534,7 @@ static int gxt4500_setcolreg(unsigned int reg, unsigned int red, break; case DFA_PIX_32BIT: val |= (reg << 24); - /* fall through */ + fallthrough; case DFA_PIX_24BIT: val |= (reg << 16) | (reg << 8); break; diff --git a/drivers/video/fbdev/hyperv_fb.c b/drivers/video/fbdev/hyperv_fb.c index e4c3c8b65da4..02411d89cb46 100644 --- a/drivers/video/fbdev/hyperv_fb.c +++ b/drivers/video/fbdev/hyperv_fb.c @@ -648,13 +648,13 @@ static int synthvid_connect_vsp(struct hv_device *hdev) ret = synthvid_negotiate_ver(hdev, SYNTHVID_VERSION_WIN10); if (!ret) break; - /* Fallthrough */ + fallthrough; case VERSION_WIN8: case VERSION_WIN8_1: ret = synthvid_negotiate_ver(hdev, SYNTHVID_VERSION_WIN8); if (!ret) break; - /* Fallthrough */ + fallthrough; case VERSION_WS2008: case VERSION_WIN7: ret = synthvid_negotiate_ver(hdev, SYNTHVID_VERSION_WIN7); diff --git a/drivers/video/fbdev/i740fb.c b/drivers/video/fbdev/i740fb.c index c65ec7386e87..e6f35f8feefc 100644 --- a/drivers/video/fbdev/i740fb.c +++ b/drivers/video/fbdev/i740fb.c @@ -430,7 +430,7 @@ static int i740fb_decode_var(const struct fb_var_screeninfo *var, break; case 9 ... 15: bpp = 15; - /* fall through */ + fallthrough; case 16: if ((1000000 / var->pixclock) > DACSPEED16) { dev_err(info->device, "requested pixclock %i MHz out of range (max. %i MHz at 15/16bpp)\n", diff --git a/drivers/video/fbdev/mmp/fb/mmpfb.c b/drivers/video/fbdev/mmp/fb/mmpfb.c index 01c75c031cb6..39ebbe026ddf 100644 --- a/drivers/video/fbdev/mmp/fb/mmpfb.c +++ b/drivers/video/fbdev/mmp/fb/mmpfb.c @@ -90,8 +90,6 @@ static int var_to_pixfmt(struct fb_var_screeninfo *var) else return PIXFMT_BGR888UNPACK; } - - /* fall through */ } return -EINVAL; diff --git a/drivers/video/fbdev/nvidia/nv_hw.c b/drivers/video/fbdev/nvidia/nv_hw.c index 8335da4ca30e..9b0a324bb1b4 100644 --- a/drivers/video/fbdev/nvidia/nv_hw.c +++ b/drivers/video/fbdev/nvidia/nv_hw.c @@ -896,7 +896,7 @@ void NVCalcStateExt(struct nvidia_par *par, if (!par->FlatPanel) state->control = NV_RD32(par->PRAMDAC0, 0x0580) & 0xeffffeff; - /* fallthrough */ + fallthrough; case NV_ARCH_10: case NV_ARCH_20: case NV_ARCH_30: diff --git a/drivers/video/fbdev/offb.c b/drivers/video/fbdev/offb.c index 5cd0f5f6a4ae..4501e848a36f 100644 --- a/drivers/video/fbdev/offb.c +++ b/drivers/video/fbdev/offb.c @@ -141,7 +141,7 @@ static int offb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, /* Clear PALETTE_ACCESS_CNTL in DAC_CNTL */ out_le32(par->cmap_adr + 0x58, in_le32(par->cmap_adr + 0x58) & ~0x20); - /* fall through */ + fallthrough; case cmap_r128: /* Set palette index & data */ out_8(par->cmap_adr + 0xb0, regno); @@ -211,7 +211,7 @@ static int offb_blank(int blank, struct fb_info *info) /* Clear PALETTE_ACCESS_CNTL in DAC_CNTL */ out_le32(par->cmap_adr + 0x58, in_le32(par->cmap_adr + 0x58) & ~0x20); - /* fall through */ + fallthrough; case cmap_r128: /* Set palette index & data */ out_8(par->cmap_adr + 0xb0, i); diff --git a/drivers/video/fbdev/omap/lcdc.c b/drivers/video/fbdev/omap/lcdc.c index fa73acfc1371..7317c9aad677 100644 --- a/drivers/video/fbdev/omap/lcdc.c +++ b/drivers/video/fbdev/omap/lcdc.c @@ -328,13 +328,13 @@ static int omap_lcdc_setup_plane(int plane, int channel_out, lcdc.bpp = 12; break; } - /* fallthrough */ + fallthrough; case OMAPFB_COLOR_YUV422: if (lcdc.ext_mode) { lcdc.bpp = 16; break; } - /* fallthrough */ + fallthrough; default: /* FIXME: other BPPs. * bpp1: code 0, size 256 diff --git a/drivers/video/fbdev/omap/omapfb_main.c b/drivers/video/fbdev/omap/omapfb_main.c index 0cbcc74fa943..3d090d2d9ed9 100644 --- a/drivers/video/fbdev/omap/omapfb_main.c +++ b/drivers/video/fbdev/omap/omapfb_main.c @@ -253,7 +253,7 @@ static int _setcolreg(struct fb_info *info, u_int regno, u_int red, u_int green, if (fbdev->ctrl->setcolreg) r = fbdev->ctrl->setcolreg(regno, red, green, blue, transp, update_hw_pal); - /* Fallthrough */ + fallthrough; case OMAPFB_COLOR_RGB565: case OMAPFB_COLOR_RGB444: if (r != 0) @@ -443,7 +443,7 @@ static int set_color_mode(struct omapfb_plane_struct *plane, return 0; case 12: var->bits_per_pixel = 16; - /* fall through */ + fallthrough; case 16: if (plane->fbdev->panel->bpp == 12) plane->color_mode = OMAPFB_COLOR_RGB444; @@ -1531,27 +1531,27 @@ static void omapfb_free_resources(struct omapfb_device *fbdev, int state) case OMAPFB_ACTIVE: for (i = 0; i < fbdev->mem_desc.region_cnt; i++) unregister_framebuffer(fbdev->fb_info[i]); - /* fall through */ + fallthrough; case 7: omapfb_unregister_sysfs(fbdev); - /* fall through */ + fallthrough; case 6: if (fbdev->panel->disable) fbdev->panel->disable(fbdev->panel); - /* fall through */ + fallthrough; case 5: omapfb_set_update_mode(fbdev, OMAPFB_UPDATE_DISABLED); - /* fall through */ + fallthrough; case 4: planes_cleanup(fbdev); - /* fall through */ + fallthrough; case 3: ctrl_cleanup(fbdev); - /* fall through */ + fallthrough; case 2: if (fbdev->panel->cleanup) fbdev->panel->cleanup(fbdev->panel); - /* fall through */ + fallthrough; case 1: dev_set_drvdata(fbdev->dev, NULL); kfree(fbdev); @@ -1854,7 +1854,7 @@ static int __init omapfb_setup(char *options) case 'm': case 'M': vram *= 1024; - /* Fall through */ + fallthrough; case 'k': case 'K': vram *= 1024; diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dispc.c b/drivers/video/fbdev/omap2/omapfb/dss/dispc.c index 3920a0db0390..b2d6e6df2161 100644 --- a/drivers/video/fbdev/omap2/omapfb/dss/dispc.c +++ b/drivers/video/fbdev/omap2/omapfb/dss/dispc.c @@ -1861,7 +1861,7 @@ static void calc_vrfb_rotation_offset(u8 rotation, bool mirror, if (color_mode == OMAP_DSS_COLOR_YUV2 || color_mode == OMAP_DSS_COLOR_UYVY) width = width >> 1; - /* fall through */ + fallthrough; case OMAP_DSS_ROT_90: case OMAP_DSS_ROT_270: *offset1 = 0; @@ -1884,7 +1884,7 @@ static void calc_vrfb_rotation_offset(u8 rotation, bool mirror, if (color_mode == OMAP_DSS_COLOR_YUV2 || color_mode == OMAP_DSS_COLOR_UYVY) width = width >> 1; - /* fall through */ + fallthrough; case OMAP_DSS_ROT_90 + 4: case OMAP_DSS_ROT_270 + 4: *offset1 = 0; diff --git a/drivers/video/fbdev/omap2/omapfb/omapfb-ioctl.c b/drivers/video/fbdev/omap2/omapfb/omapfb-ioctl.c index f40be68d5aac..ea8c88aa4477 100644 --- a/drivers/video/fbdev/omap2/omapfb/omapfb-ioctl.c +++ b/drivers/video/fbdev/omap2/omapfb/omapfb-ioctl.c @@ -760,7 +760,7 @@ int omapfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg) r = -ENODEV; break; } - /* FALLTHROUGH */ + fallthrough; case OMAPFB_WAITFORVSYNC: DBG("ioctl WAITFORVSYNC\n"); diff --git a/drivers/video/fbdev/omap2/omapfb/omapfb-main.c b/drivers/video/fbdev/omap2/omapfb/omapfb-main.c index 836e7b1639ce..a3decc7fadde 100644 --- a/drivers/video/fbdev/omap2/omapfb/omapfb-main.c +++ b/drivers/video/fbdev/omap2/omapfb/omapfb-main.c @@ -882,7 +882,7 @@ int omapfb_setup_overlay(struct fb_info *fbi, struct omap_overlay *ovl, / (var->bits_per_pixel >> 2); break; } - /* fall through */ + fallthrough; default: screen_width = fix->line_length / (var->bits_per_pixel >> 3); break; diff --git a/drivers/video/fbdev/pm2fb.c b/drivers/video/fbdev/pm2fb.c index c7c98d8e2359..0642555289e0 100644 --- a/drivers/video/fbdev/pm2fb.c +++ b/drivers/video/fbdev/pm2fb.c @@ -233,10 +233,10 @@ static u32 to3264(u32 timing, int bpp, int is64) switch (bpp) { case 24: timing *= 3; - /* fall through */ + fallthrough; case 8: timing >>= 1; - /* fall through */ + fallthrough; case 16: timing >>= 1; case 32: diff --git a/drivers/video/fbdev/pxa168fb.c b/drivers/video/fbdev/pxa168fb.c index eedfbd3572a8..47e6a1d0d229 100644 --- a/drivers/video/fbdev/pxa168fb.c +++ b/drivers/video/fbdev/pxa168fb.c @@ -60,8 +60,6 @@ static int determine_best_pix_fmt(struct fb_var_screeninfo *var) else return PIX_FMT_BGR1555; } - - /* fall through */ } /* @@ -87,8 +85,6 @@ static int determine_best_pix_fmt(struct fb_var_screeninfo *var) else return PIX_FMT_BGR888UNPACK; } - - /* fall through */ } return -EINVAL; diff --git a/drivers/video/fbdev/pxafb.c b/drivers/video/fbdev/pxafb.c index a53d24fb7183..f1551e00eb12 100644 --- a/drivers/video/fbdev/pxafb.c +++ b/drivers/video/fbdev/pxafb.c @@ -1614,7 +1614,7 @@ static void set_ctrlr_state(struct pxafb_info *fbi, u_int state) */ if (old_state != C_DISABLE_PM) break; - /* fall through */ + fallthrough; case C_ENABLE: /* diff --git a/drivers/video/fbdev/riva/fbdev.c b/drivers/video/fbdev/riva/fbdev.c index 9b3493846f4d..ce55b9d2e862 100644 --- a/drivers/video/fbdev/riva/fbdev.c +++ b/drivers/video/fbdev/riva/fbdev.c @@ -1093,7 +1093,7 @@ static int rivafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) break; case 9 ... 15: var->green.length = 5; - /* fall through */ + fallthrough; case 16: var->bits_per_pixel = 16; /* The Riva128 supports RGB555 only */ diff --git a/drivers/video/fbdev/s3c-fb.c b/drivers/video/fbdev/s3c-fb.c index 9dc925054930..ba316bd56efd 100644 --- a/drivers/video/fbdev/s3c-fb.c +++ b/drivers/video/fbdev/s3c-fb.c @@ -284,7 +284,7 @@ static int s3c_fb_check_var(struct fb_var_screeninfo *var, /* 666 with one bit alpha/transparency */ var->transp.offset = 18; var->transp.length = 1; - /* fall through */ + fallthrough; case 18: var->bits_per_pixel = 32; @@ -312,7 +312,7 @@ static int s3c_fb_check_var(struct fb_var_screeninfo *var, case 25: var->transp.length = var->bits_per_pixel - 24; var->transp.offset = 24; - /* fall through */ + fallthrough; case 24: /* our 24bpp is unpacked, so 32bpp */ var->bits_per_pixel = 32; @@ -809,7 +809,7 @@ static int s3c_fb_blank(int blank_mode, struct fb_info *info) case FB_BLANK_POWERDOWN: wincon &= ~WINCONx_ENWIN; sfb->enabled &= ~(1 << index); - /* fall through - to FB_BLANK_NORMAL */ + fallthrough; /* to FB_BLANK_NORMAL */ case FB_BLANK_NORMAL: /* disable the DMA and display 0x0 (black) */ diff --git a/drivers/video/fbdev/sa1100fb.c b/drivers/video/fbdev/sa1100fb.c index bda6cc313c8b..e31cf63b0a62 100644 --- a/drivers/video/fbdev/sa1100fb.c +++ b/drivers/video/fbdev/sa1100fb.c @@ -935,7 +935,7 @@ static void set_ctrlr_state(struct sa1100fb_info *fbi, u_int state) */ if (old_state != C_DISABLE_PM) break; - /* fall through */ + fallthrough; case C_ENABLE: /* diff --git a/drivers/video/fbdev/savage/savagefb_driver.c b/drivers/video/fbdev/savage/savagefb_driver.c index 3fd87aeb6c79..a2442aae7e12 100644 --- a/drivers/video/fbdev/savage/savagefb_driver.c +++ b/drivers/video/fbdev/savage/savagefb_driver.c @@ -1860,7 +1860,7 @@ static int savage_init_hw(struct savagefb_par *par) if ((vga_in8(0x3d5, par) & 0xC0) == (0x01 << 6)) RamSavage4[1] = 8; - /*FALLTHROUGH*/ + fallthrough; case S3_SAVAGE2000: videoRam = RamSavage4[(config1 & 0xE0) >> 5] * 1024; diff --git a/drivers/video/fbdev/sh_mobile_lcdcfb.c b/drivers/video/fbdev/sh_mobile_lcdcfb.c index 8a27d12e6ea8..c1043420dbd3 100644 --- a/drivers/video/fbdev/sh_mobile_lcdcfb.c +++ b/drivers/video/fbdev/sh_mobile_lcdcfb.c @@ -1594,7 +1594,7 @@ sh_mobile_lcdc_overlay_fb_init(struct sh_mobile_lcdc_overlay *ovl) case V4L2_PIX_FMT_NV12: case V4L2_PIX_FMT_NV21: info->fix.ypanstep = 2; - /* Fall through */ + fallthrough; case V4L2_PIX_FMT_NV16: case V4L2_PIX_FMT_NV61: info->fix.xpanstep = 2; @@ -2085,7 +2085,7 @@ sh_mobile_lcdc_channel_fb_init(struct sh_mobile_lcdc_chan *ch, case V4L2_PIX_FMT_NV12: case V4L2_PIX_FMT_NV21: info->fix.ypanstep = 2; - /* Fall through */ + fallthrough; case V4L2_PIX_FMT_NV16: case V4L2_PIX_FMT_NV61: info->fix.xpanstep = 2; diff --git a/drivers/video/fbdev/sis/sis_main.c b/drivers/video/fbdev/sis/sis_main.c index ac140962b1bf..03c736f6f3d0 100644 --- a/drivers/video/fbdev/sis/sis_main.c +++ b/drivers/video/fbdev/sis/sis_main.c @@ -1739,7 +1739,7 @@ static int sisfb_ioctl(struct fb_info *info, unsigned int cmd, if(ivideo->warncount++ < 10) printk(KERN_INFO "sisfb: Deprecated ioctl call received - update your application!\n"); - /* fall through */ + fallthrough; case SISFB_GET_INFO: /* For communication with X driver */ ivideo->sisfb_infoblock.sisfb_id = SISFB_ID; ivideo->sisfb_infoblock.sisfb_version = VER_MAJOR; @@ -1793,7 +1793,7 @@ static int sisfb_ioctl(struct fb_info *info, unsigned int cmd, if(ivideo->warncount++ < 10) printk(KERN_INFO "sisfb: Deprecated ioctl call received - update your application!\n"); - /* fall through */ + fallthrough; case SISFB_GET_VBRSTATUS: if(sisfb_CheckVBRetrace(ivideo)) return put_user((u32)1, argp); @@ -1804,7 +1804,7 @@ static int sisfb_ioctl(struct fb_info *info, unsigned int cmd, if(ivideo->warncount++ < 10) printk(KERN_INFO "sisfb: Deprecated ioctl call received - update your application!\n"); - /* fall through */ + fallthrough; case SISFB_GET_AUTOMAXIMIZE: if(ivideo->sisfb_max) return put_user((u32)1, argp); @@ -1815,7 +1815,7 @@ static int sisfb_ioctl(struct fb_info *info, unsigned int cmd, if(ivideo->warncount++ < 10) printk(KERN_INFO "sisfb: Deprecated ioctl call received - update your application!\n"); - /* fall through */ + fallthrough; case SISFB_SET_AUTOMAXIMIZE: if(get_user(gpu32, argp)) return -EFAULT; diff --git a/drivers/video/fbdev/sm501fb.c b/drivers/video/fbdev/sm501fb.c index 3dd1b1d76e98..6a52eba64559 100644 --- a/drivers/video/fbdev/sm501fb.c +++ b/drivers/video/fbdev/sm501fb.c @@ -1005,7 +1005,7 @@ static int sm501fb_blank_crt(int blank_mode, struct fb_info *info) case FB_BLANK_POWERDOWN: ctrl &= ~SM501_DC_CRT_CONTROL_ENABLE; sm501_misc_control(fbi->dev->parent, SM501_MISC_DAC_POWER, 0); - /* fall through */ + fallthrough; case FB_BLANK_NORMAL: ctrl |= SM501_DC_CRT_CONTROL_BLANK; diff --git a/drivers/video/fbdev/stifb.c b/drivers/video/fbdev/stifb.c index de953ddb6312..265865610edc 100644 --- a/drivers/video/fbdev/stifb.c +++ b/drivers/video/fbdev/stifb.c @@ -999,7 +999,7 @@ stifb_blank(int blank_mode, struct fb_info *info) case S9000_ID_HCRX: HYPER_ENABLE_DISABLE_DISPLAY(fb, enable); break; - case S9000_ID_A1659A: /* fall through */ + case S9000_ID_A1659A: case S9000_ID_TIMBER: case CRX24_OVERLAY_PLANES: default: @@ -1157,7 +1157,7 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref) dev_name); goto out_err0; } - /* fall through */ + fallthrough; case S9000_ID_ARTIST: case S9000_ID_HCRX: case S9000_ID_TIMBER: diff --git a/drivers/video/fbdev/tdfxfb.c b/drivers/video/fbdev/tdfxfb.c index f73e26c18c09..f056d80f6359 100644 --- a/drivers/video/fbdev/tdfxfb.c +++ b/drivers/video/fbdev/tdfxfb.c @@ -523,7 +523,7 @@ static int tdfxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) case 32: var->transp.offset = 24; var->transp.length = 8; - /* fall through */ + fallthrough; case 24: var->red.offset = 16; var->green.offset = 8; diff --git a/drivers/video/fbdev/vga16fb.c b/drivers/video/fbdev/vga16fb.c index a20eeb8308ff..578d3541e3d6 100644 --- a/drivers/video/fbdev/vga16fb.c +++ b/drivers/video/fbdev/vga16fb.c @@ -1121,7 +1121,7 @@ static void vga_8planes_imageblit(struct fb_info *info, const struct fb_image *i char oldop = setop(0); char oldsr = setsr(0); char oldmask = selectmask(); - const char *cdat = image->data; + const unsigned char *cdat = image->data; u32 dx = image->dx; char __iomem *where; int y; diff --git a/drivers/video/fbdev/via/lcd.c b/drivers/video/fbdev/via/lcd.c index 3fea01db58d6..4a869402d120 100644 --- a/drivers/video/fbdev/via/lcd.c +++ b/drivers/video/fbdev/via/lcd.c @@ -744,7 +744,7 @@ static void set_lcd_output_path(int set_iga, int output_interface) viaparinfo->chip_info->gfx_chip_name)) viafb_write_reg_mask(CR97, VIACR, 0x84, BIT7 + BIT2 + BIT1 + BIT0); - /* fall through */ + fallthrough; case INTERFACE_DVP0: case INTERFACE_DVP1: case INTERFACE_DFP_HIGH: diff --git a/drivers/video/fbdev/xen-fbfront.c b/drivers/video/fbdev/xen-fbfront.c index 00307b8693bf..5ec51445bee8 100644 --- a/drivers/video/fbdev/xen-fbfront.c +++ b/drivers/video/fbdev/xen-fbfront.c @@ -677,7 +677,7 @@ static void xenfb_backend_changed(struct xenbus_device *dev, case XenbusStateClosed: if (dev->state == XenbusStateClosed) break; - /* fall through - Missed the backend's CLOSING state. */ + fallthrough; /* Missed the backend's CLOSING state */ case XenbusStateClosing: xenbus_frontend_closed(dev); break; |