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fbdev: use DIV_ROUND_UP or roundup
The kernel.h macro DIV_ROUND_UP performs the computation (((n) + (d) - 1) / (d)) but is perhaps more readable. An extract of the semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @haskernel@ @@ #include <linux/kernel.h> @depends on haskernel@ expression n,d; @@ ( - (n + d - 1) / d + DIV_ROUND_UP(n,d) | - (n + (d - 1)) / d + DIV_ROUND_UP(n,d) ) @depends on haskernel@ expression n,d; @@ - DIV_ROUND_UP((n),d) + DIV_ROUND_UP(n,d) @depends on haskernel@ expression n,d; @@ - DIV_ROUND_UP(n,(d)) + DIV_ROUND_UP(n,d) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -1270,7 +1270,7 @@ again:
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gstart = (prescale / 2 + plen * left_margin) / prescale;
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/* gend1 is for hde (gend-gstart multiple of align), shifter's xres */
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gend1 = gstart + ((xres + align - 1) / align) * align * plen / prescale;
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gend1 = gstart + roundup(xres, align) * plen / prescale;
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/* gend2 is for hbb, visible xres (rest to gend1 is cut off by hblank) */
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gend2 = gstart + xres * plen / prescale;
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par->HHT = plen * (left_margin + xres + right_margin) /
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@ -3117,7 +3117,7 @@ static void bestclock(long freq, long *best, long *nom,
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}
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}
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}
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d = ((143181 * n) + f - 1) / f;
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d = DIV_ROUND_UP(143181 * n, f);
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if ((d >= 7) && (d <= 63)) {
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if (d > 31)
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d = (d / 2) * 2;
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@ -620,8 +620,7 @@ static void fbcon_prepare_logo(struct vc_data *vc, struct fb_info *info,
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if (fb_get_color_depth(&info->var, &info->fix) == 1)
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erase &= ~0x400;
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logo_height = fb_prepare_logo(info, ops->rotate);
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logo_lines = (logo_height + vc->vc_font.height - 1) /
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vc->vc_font.height;
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logo_lines = DIV_ROUND_UP(logo_height, vc->vc_font.height);
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q = (unsigned short *) (vc->vc_origin +
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vc->vc_size_row * rows);
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step = logo_lines * cols;
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@ -238,7 +238,7 @@ static int calc_pll(int period_ps, struct gxt4500_par *par)
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for (pdiv1 = 1; pdiv1 <= 8; ++pdiv1) {
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for (pdiv2 = 1; pdiv2 <= pdiv1; ++pdiv2) {
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postdiv = pdiv1 * pdiv2;
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pll_period = (period_ps + postdiv - 1) / postdiv;
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pll_period = DIV_ROUND_UP(period_ps, postdiv);
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/* keep pll in range 350..600 MHz */
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if (pll_period < 1666 || pll_period > 2857)
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continue;
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