From 5e2af0c09e60d11dd8297e259a9ca2b3d92d2cf4 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Fri, 27 Jan 2012 21:20:32 -0300 Subject: edac: Don't initialize csrow's first_page & friends when not needed MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Almost all edac drivers initialize csrow_info->first_page, csrow_info->last_page and csrow_info->page_mask. Those vars are used inside the EDAC core, in order to calculate the csrow affected by an error, by using the routine edac_mc_find_csrow_by_page(). However, very few drivers actually use it: e752x_edac.c e7xxx_edac.c i3000_edac.c i82443bxgx_edac.c i82860_edac.c i82875p_edac.c i82975x_edac.c r82600_edac.c There also a few other drivers that have their own calculus formula internally using those vars. All the others are just wasting time by initializing those data. While initializing data without using them won't cause any troubles, as those information is stored at the wrong place (at csrows structure), it is better to remove what is unused, in order to simplify the next patch. Reviewed-by: Aristeu Rozanski Acked-by: Borislav Petkov Acked-by: Chris Metcalf Cc: Doug Thompson Cc: Hitoshi Mitake Cc: Andrew Morton Cc: "Niklas Söderlund" Cc: Josh Boyer Cc: Jiri Kosina Signed-off-by: Mauro Carvalho Chehab --- drivers/edac/x38_edac.c | 5 ----- 1 file changed, 5 deletions(-) (limited to 'drivers/edac/x38_edac.c') diff --git a/drivers/edac/x38_edac.c b/drivers/edac/x38_edac.c index f7cc4d214949..bc7f880a4eed 100644 --- a/drivers/edac/x38_edac.c +++ b/drivers/edac/x38_edac.c @@ -319,7 +319,6 @@ static int x38_probe1(struct pci_dev *pdev, int dev_idx) int rc; int i, j; struct mem_ctl_info *mci = NULL; - unsigned long last_page; u16 drbs[X38_CHANNELS][X38_RANKS_PER_CHANNEL]; bool stacked; void __iomem *window; @@ -363,7 +362,6 @@ static int x38_probe1(struct pci_dev *pdev, int dev_idx) * cumulative; the last one will contain the total memory * contained in all ranks. */ - last_page = -1UL; for (i = 0; i < mci->nr_csrows; i++) { unsigned long nr_pages; struct csrow_info *csrow = &mci->csrows[i]; @@ -375,9 +373,6 @@ static int x38_probe1(struct pci_dev *pdev, int dev_idx) if (nr_pages == 0) continue; - csrow->first_page = last_page + 1; - last_page += nr_pages; - csrow->last_page = last_page; csrow->nr_pages = nr_pages; for (j = 0; j < x38_channel_num; j++) { -- cgit v1.2.3