Messages in this thread Patch in this message | | | Date | Tue, 14 Oct 2008 12:16:50 +0400 | From | "Alexander V. Lukyanov" <> | Subject | Re: linux 2.6.26 vt back_color_erase |
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On Mon, Oct 13, 2008 at 09:39:24AM +0100, Alan Cox wrote: > > Probably color ls -l is just broken and should be fixed. Why was it > > necessary to change the console color semantics that was there for years? > > Submit a patch that reverts the change. I would agree it needs reverting.
Here is the patch to restore status quo.
diff -ru linux-2.6.27/drivers/char/vt.c linux-2.6.27+/drivers/char/vt.c --- linux-2.6.27/drivers/char/vt.c 2008-10-10 02:13:53.000000000 +0400 +++ linux-2.6.27+/drivers/char/vt.c 2008-10-14 10:09:10.000000000 +0400 @@ -301,7 +301,7 @@ d = (unsigned short *)(vc->vc_origin + vc->vc_size_row * t); s = (unsigned short *)(vc->vc_origin + vc->vc_size_row * (t + nr)); scr_memmovew(d, s, (b - t - nr) * vc->vc_size_row); - scr_memsetw(d + (b - t - nr) * vc->vc_cols, vc->vc_scrl_erase_char, + scr_memsetw(d + (b - t - nr) * vc->vc_cols, vc->vc_video_erase_char, vc->vc_size_row * nr); } @@ -319,7 +319,7 @@ s = (unsigned short *)(vc->vc_origin + vc->vc_size_row * t); step = vc->vc_cols * nr; scr_memmovew(s + step, s, (b - t - nr) * vc->vc_size_row); - scr_memsetw(s, vc->vc_scrl_erase_char, 2 * step); + scr_memsetw(s, vc->vc_video_erase_char, 2 * step); } static void do_update_region(struct vc_data *vc, unsigned long start, int count) @@ -434,7 +434,6 @@ vc->vc_blink, vc->vc_underline, vc->vc_reverse ^ vc->vc_decscnm, vc->vc_italic); vc->vc_video_erase_char = (build_attr(vc, vc->vc_color, 1, vc->vc_blink, 0, vc->vc_decscnm, 0) << 8) | ' '; - vc->vc_scrl_erase_char = (build_attr(vc, vc->vc_def_color, 1, false, false, vc->vc_decscnm, false) << 8) | ' '; } /* Note: inverting the screen twice should revert to the original state */ diff -ru linux-2.6.27/drivers/video/console/fbcon.c linux-2.6.27+/drivers/video/console/fbcon.c --- linux-2.6.27/drivers/video/console/fbcon.c 2008-10-10 02:13:53.000000000 +0400 +++ linux-2.6.27+/drivers/video/console/fbcon.c 2008-10-14 10:18:32.000000000 +0400 @@ -1855,7 +1855,6 @@ struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]]; struct display *p = &fb_display[vc->vc_num]; int scroll_partial = info->flags & FBINFO_PARTIAL_PAN_OK; - unsigned short saved_ec; int ret; if (fbcon_is_inactive(vc, info)) @@ -1869,9 +1868,6 @@ * whole screen (prevents flicker). */ - saved_ec = vc->vc_video_erase_char; - vc->vc_video_erase_char = vc->vc_scrl_erase_char; - ret = 0; switch (dir) { @@ -1890,7 +1886,7 @@ scr_memsetw((unsigned short *) (vc->vc_origin + vc->vc_size_row * (b - count)), - vc->vc_scrl_erase_char, + vc->vc_video_erase_char, vc->vc_size_row * count); ret = 1; break; @@ -1962,7 +1958,7 @@ scr_memsetw((unsigned short *) (vc->vc_origin + vc->vc_size_row * (b - count)), - vc->vc_scrl_erase_char, + vc->vc_video_erase_char, vc->vc_size_row * count); ret = 1; break; @@ -1982,7 +1978,7 @@ scr_memsetw((unsigned short *) (vc->vc_origin + vc->vc_size_row * t), - vc->vc_scrl_erase_char, + vc->vc_video_erase_char, vc->vc_size_row * count); ret = 1; break; @@ -2052,14 +2048,13 @@ scr_memsetw((unsigned short *) (vc->vc_origin + vc->vc_size_row * t), - vc->vc_scrl_erase_char, + vc->vc_video_erase_char, vc->vc_size_row * count); ret = 1; break; } break; } - vc->vc_video_erase_char = saved_ec; return ret; } @@ -2522,9 +2517,6 @@ c = vc->vc_video_erase_char; vc->vc_video_erase_char = ((c & 0xfe00) >> 1) | (c & 0xff); - c = vc->vc_scrl_erase_char; - vc->vc_scrl_erase_char = - ((c & 0xFE00) >> 1) | (c & 0xFF); vc->vc_attr >>= 1; } } else if (!vc->vc_hi_font_mask && cnt == 512) { @@ -2555,13 +2547,9 @@ if (vc->vc_can_do_color) { vc->vc_video_erase_char = ((c & 0xff00) << 1) | (c & 0xff); - c = vc->vc_scrl_erase_char; - vc->vc_scrl_erase_char = - ((c & 0xFF00) << 1) | (c & 0xFF); vc->vc_attr <<= 1; } else { vc->vc_video_erase_char = c & ~0x100; - vc->vc_scrl_erase_char = c & ~0x100; } } diff -ru linux-2.6.27/drivers/video/console/mdacon.c linux-2.6.27+/drivers/video/console/mdacon.c --- linux-2.6.27/drivers/video/console/mdacon.c 2008-10-10 02:13:53.000000000 +0400 +++ linux-2.6.27+/drivers/video/console/mdacon.c 2008-10-14 10:18:06.000000000 +0400 @@ -533,7 +533,7 @@ static int mdacon_scroll(struct vc_data *c, int t, int b, int dir, int lines) { - u16 eattr = mda_convert_attr(c->vc_scrl_erase_char); + u16 eattr = mda_convert_attr(c->vc_video_erase_char); if (!lines) return 0; diff -ru linux-2.6.27/drivers/video/console/sticon.c linux-2.6.27+/drivers/video/console/sticon.c --- linux-2.6.27/drivers/video/console/sticon.c 2008-10-10 02:13:53.000000000 +0400 +++ linux-2.6.27+/drivers/video/console/sticon.c 2008-10-14 10:17:55.000000000 +0400 @@ -170,12 +170,12 @@ switch (dir) { case SM_UP: sti_bmove(sti, t + count, 0, t, 0, b - t - count, conp->vc_cols); - sti_clear(sti, b - count, 0, count, conp->vc_cols, conp->vc_scrl_erase_char); + sti_clear(sti, b - count, 0, count, conp->vc_cols, conp->vc_video_erase_char); break; case SM_DOWN: sti_bmove(sti, t, 0, t + count, 0, b - t - count, conp->vc_cols); - sti_clear(sti, t, 0, count, conp->vc_cols, conp->vc_scrl_erase_char); + sti_clear(sti, t, 0, count, conp->vc_cols, conp->vc_video_erase_char); break; } diff -ru linux-2.6.27/drivers/video/console/vgacon.c linux-2.6.27+/drivers/video/console/vgacon.c --- linux-2.6.27/drivers/video/console/vgacon.c 2008-10-10 02:13:53.000000000 +0400 +++ linux-2.6.27+/drivers/video/console/vgacon.c 2008-10-14 10:17:38.000000000 +0400 @@ -1350,7 +1350,7 @@ } else c->vc_origin += delta; scr_memsetw((u16 *) (c->vc_origin + c->vc_screenbuf_size - - delta), c->vc_scrl_erase_char, + delta), c->vc_video_erase_char, delta); } else { if (oldo - delta < vga_vram_base) { @@ -1363,7 +1363,7 @@ } else c->vc_origin -= delta; c->vc_scr_end = c->vc_origin + c->vc_screenbuf_size; - scr_memsetw((u16 *) (c->vc_origin), c->vc_scrl_erase_char, + scr_memsetw((u16 *) (c->vc_origin), c->vc_video_erase_char, delta); } c->vc_scr_end = c->vc_origin + c->vc_screenbuf_size; diff -ru linux-2.6.27/include/linux/console_struct.h linux-2.6.27+/include/linux/console_struct.h --- linux-2.6.27/include/linux/console_struct.h 2008-10-10 02:13:53.000000000 +0400 +++ linux-2.6.27+/include/linux/console_struct.h 2008-10-14 10:07:42.000000000 +0400 @@ -53,7 +53,6 @@ unsigned short vc_hi_font_mask; /* [#] Attribute set for upper 256 chars of font or 0 if not supported */ struct console_font vc_font; /* Current VC font set */ unsigned short vc_video_erase_char; /* Background erase character */ - unsigned short vc_scrl_erase_char; /* Erase character for scroll */ /* VT terminal data */ unsigned int vc_state; /* Escape sequence parser state */ unsigned int vc_npar,vc_par[NPAR]; /* Parameters of current escape sequence */ -- Alexander.
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