Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752570AbaGFSy6 (ORCPT ); Sun, 6 Jul 2014 14:54:58 -0400 Received: from mail-we0-f169.google.com ([74.125.82.169]:65174 "EHLO mail-we0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752032AbaGFSyz (ORCPT ); Sun, 6 Jul 2014 14:54:55 -0400 From: Rickard Strandqvist To: Jean-Christophe Plagniol-Villard , Tomi Valkeinen Cc: Rickard Strandqvist , Jingoo Han , Laurent Pinchart , Rob Clark , linux-fbdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] video: fbdev: riva: riva_hw.c: Cleaning up variable that is never used Date: Sun, 6 Jul 2014 20:56:10 +0200 Message-Id: <1404672970-20156-1-git-send-email-rickard_strandqvist@spectrumdigital.se> X-Mailer: git-send-email 1.7.10.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Variable ar assigned a value that is never used. I have also removed all the code that thereby serves no purpose. This was found using a static code analysis program called cppcheck Signed-off-by: Rickard Strandqvist --- drivers/video/fbdev/riva/riva_hw.c | 50 ++++++++++-------------------------- 1 file changed, 14 insertions(+), 36 deletions(-) diff --git a/drivers/video/fbdev/riva/riva_hw.c b/drivers/video/fbdev/riva/riva_hw.c index 78fdbf5..f760749 100644 --- a/drivers/video/fbdev/riva/riva_hw.c +++ b/drivers/video/fbdev/riva/riva_hw.c @@ -247,14 +247,13 @@ static int nv3_iterate(nv3_fifo_info *res_info, nv3_sim_state * state, nv3_arb_i int mburst_size = 32; int mmisses, gmisses, vmisses; int misses; - int vlwm, glwm, mlwm; + int vlwm, glwm; int last, next, cur; int max_gfsize ; long ns; vlwm = 0; glwm = 0; - mlwm = 0; vfsize = 0; gfsize = 0; cur = ainfo->cur; @@ -592,7 +591,7 @@ static void nv3CalcArbitration ainfo.gr_en = 1; ainfo.gdrain_rate = (int) state->pclk_khz * (state->pix_bpp/8); ainfo.vdrain_rate = 0; - res_gr = nv3_get_param(res_info, state, &ainfo); + nv3_get_param(res_info, state, &ainfo); res_gr = ainfo.converged; res_info->video_lwm = save_info.video_lwm; res_info->video_burst_size = save_info.video_burst_size; @@ -602,7 +601,7 @@ static void nv3CalcArbitration { if (!ainfo.gr_en) ainfo.gdrain_rate = 0; if (!ainfo.vid_en) ainfo.vdrain_rate = 0; - res_gr = nv3_get_param(res_info, state, &ainfo); + nv3_get_param(res_info, state, &ainfo); res_info->valid = ainfo.converged; } } @@ -657,13 +656,12 @@ static void nv4CalcArbitration nv4_sim_state *arb ) { - int data, pagemiss, cas,width, video_enable, color_key_enable, bpp, align; - int nvclks, mclks, pclks, vpagemiss, crtpagemiss, vbs; + int data, pagemiss, cas, width, video_enable, bpp; + int nvclks, mclks, vpagemiss, crtpagemiss, vbs; int found, mclk_extra, mclk_loop, cbs, m1, p1; int mclk_freq, pclk_freq, nvclk_freq, mp_enable; int us_m, us_n, us_p, video_drain_rate, crtc_drain_rate; int vpm_us, us_video, vlwm, video_fill_us, cpm_us, us_crt,clwm; - int craw, vraw; fifo->valid = 1; pclk_freq = arb->pclk_khz; @@ -673,14 +671,11 @@ static void nv4CalcArbitration cas = arb->mem_latency; width = arb->memory_width >> 6; video_enable = arb->enable_video; - color_key_enable = arb->gr_during_vid; bpp = arb->pix_bpp; - align = arb->mem_aligned; mp_enable = arb->enable_mp; clwm = 0; vlwm = 0; cbs = 128; - pclks = 2; nvclks = 2; nvclks += 2; nvclks += 1; @@ -700,7 +695,6 @@ static void nv4CalcArbitration if (mp_enable) mclks+=4; nvclks += 0; - pclks += 0; found = 0; vbs = 0; while (found != 1) @@ -783,8 +777,6 @@ static void nv4CalcArbitration mclk_extra--; } } - craw = clwm; - vraw = vlwm; if (clwm < 384) clwm = 384; if (vlwm < 128) vlwm = 128; data = (int)(clwm); @@ -843,17 +835,17 @@ static void nv10CalcArbitration nv10_sim_state *arb ) { - int data, pagemiss, cas,width, video_enable, color_key_enable, bpp, align; - int nvclks, mclks, pclks, vpagemiss, crtpagemiss, vbs; - int nvclk_fill, us_extra; + int data, pagemiss, width, video_enable, bpp; + int nvclks, mclks, pclks, vpagemiss, crtpagemiss; + int nvclk_fill; int found, mclk_extra, mclk_loop, cbs, m1; int mclk_freq, pclk_freq, nvclk_freq, mp_enable; - int us_m, us_m_min, us_n, us_p, video_drain_rate, crtc_drain_rate; - int vus_m, vus_n, vus_p; - int vpm_us, us_video, vlwm, cpm_us, us_crt,clwm; + int us_m, us_m_min, us_n, us_p, crtc_drain_rate; + int vus_m; + int vpm_us, us_video, cpm_us, us_crt, clwm; int clwm_rnd_down; - int craw, m2us, us_pipe, us_pipe_min, vus_pipe, p1clk, p2; - int pclks_2_top_fifo, min_mclk_extra; + int m2us, us_pipe_min, p1clk, p2; + int min_mclk_extra; int us_min_mclk_extra; fifo->valid = 1; @@ -861,18 +853,13 @@ static void nv10CalcArbitration mclk_freq = arb->mclk_khz; nvclk_freq = arb->nvclk_khz; pagemiss = arb->mem_page_miss; - cas = arb->mem_latency; width = arb->memory_width/64; video_enable = arb->enable_video; - color_key_enable = arb->gr_during_vid; bpp = arb->pix_bpp; - align = arb->mem_aligned; mp_enable = arb->enable_mp; clwm = 0; - vlwm = 1024; cbs = 512; - vbs = 512; pclks = 4; /* lwm detect. */ @@ -933,17 +920,11 @@ static void nv10CalcArbitration us_min_mclk_extra = min_mclk_extra *1000*1000 / mclk_freq; us_n = nvclks*1000*1000 / nvclk_freq;/* nvclk latency in us */ us_p = pclks*1000*1000 / pclk_freq;/* nvclk latency in us */ - us_pipe = us_m + us_n + us_p; us_pipe_min = us_m_min + us_n + us_p; - us_extra = 0; vus_m = mclk_loop *1000*1000 / mclk_freq; /* Mclk latency in us */ - vus_n = (4)*1000*1000 / nvclk_freq;/* nvclk latency in us */ - vus_p = 0*1000*1000 / pclk_freq;/* pclk latency in us */ - vus_pipe = vus_m + vus_n + vus_p; if(video_enable) { - video_drain_rate = pclk_freq * 4; /* MB/s */ crtc_drain_rate = pclk_freq * bpp/8; /* MB/s */ vpagemiss = 1; /* self generating page miss */ @@ -1002,7 +983,6 @@ static void nv10CalcArbitration else if(crtc_drain_rate * 100 >= nvclk_fill * 98) { clwm = 1024; cbs = 512; - us_extra = (cbs * 1000 * 1000)/ (8*width)/mclk_freq ; } } } @@ -1019,7 +999,6 @@ static void nv10CalcArbitration m1 = clwm + cbs - 1024; /* Amount of overfill */ m2us = us_pipe_min + us_min_mclk_extra; - pclks_2_top_fifo = (1024-clwm)/(8*width); /* pclk cycles to drain */ p1clk = m2us * pclk_freq/(1000*1000); @@ -1047,7 +1026,6 @@ static void nv10CalcArbitration min_mclk_extra--; } } - craw = clwm; if(clwm < (1024-cbs+8)) clwm = 1024-cbs+8; data = (int)(clwm); @@ -1863,7 +1841,7 @@ static void SetStartAddress3 /* * 4 pixel pan register. */ - offset = VGA_RD08(chip->PCIO, chip->IO + 0x0A); + VGA_RD08(chip->PCIO, chip->IO + 0x0A); VGA_WR08(chip->PCIO, 0x3C0, 0x13); VGA_WR08(chip->PCIO, 0x3C0, pan); } -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/