From 1853ee72997645e1aea85e20b94f7dcc55636887 Mon Sep 17 00:00:00 2001 From: Robert Richter Date: Thu, 23 Jan 2020 09:03:06 +0000 Subject: EDAC/mc: Remove detail[] string and cleanup error string generation The error descriptor is passed to the error reporting functions, so the error details can be directly generated there. Move string generation from edac_raw_mc_handle_error() to edac_ce_error() and edac_ue_error(). The intermediate detail[] string can be removed then. Also, cleanup the string generation by switching to a single variant only using the ternary operator. [ bp: put ternary operators on a separate line for better readability and use the short-form "inline if" in edac_mc_handle_error(). ] Signed-off-by: Robert Richter Signed-off-by: Borislav Petkov Acked-by: Aristeu Rozanski Link: https://lkml.kernel.org/r/20200123090210.26933-10-rrichter@marvell.com --- drivers/edac/edac_mc.c | 90 ++++++++++++++++++-------------------------------- 1 file changed, 32 insertions(+), 58 deletions(-) (limited to 'drivers/edac') diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c index 120c8c1a9d3a..80629c702a4f 100644 --- a/drivers/edac/edac_mc.c +++ b/drivers/edac/edac_mc.c @@ -993,27 +993,20 @@ static void edac_inc_ue_error(struct edac_raw_error_desc *e) } } -static void edac_ce_error(struct edac_raw_error_desc *e, - const char *detail) +static void edac_ce_error(struct edac_raw_error_desc *e) { struct mem_ctl_info *mci = error_desc_to_mci(e); unsigned long remapped_page; - char *msg_aux = ""; - - if (*e->msg) - msg_aux = " "; if (edac_mc_get_log_ce()) { - if (e->other_detail && *e->other_detail) - edac_mc_printk(mci, KERN_WARNING, - "%d CE %s%son %s (%s %s - %s)\n", - e->error_count, e->msg, msg_aux, e->label, - e->location, detail, e->other_detail); - else - edac_mc_printk(mci, KERN_WARNING, - "%d CE %s%son %s (%s %s)\n", - e->error_count, e->msg, msg_aux, e->label, - e->location, detail); + edac_mc_printk(mci, KERN_WARNING, + "%d CE %s%son %s (%s page:0x%lx offset:0x%lx grain:%ld syndrome:0x%lx%s%s)\n", + e->error_count, e->msg, + *e->msg ? " " : "", + e->label, e->location, e->page_frame_number, e->offset_in_page, + e->grain, e->syndrome, + *e->other_detail ? " - " : "", + e->other_detail); } edac_inc_ce_error(e); @@ -1038,36 +1031,29 @@ static void edac_ce_error(struct edac_raw_error_desc *e, } } -static void edac_ue_error(struct edac_raw_error_desc *e, - const char *detail) +static void edac_ue_error(struct edac_raw_error_desc *e) { struct mem_ctl_info *mci = error_desc_to_mci(e); - char *msg_aux = ""; - - if (*e->msg) - msg_aux = " "; if (edac_mc_get_log_ue()) { - if (e->other_detail && *e->other_detail) - edac_mc_printk(mci, KERN_WARNING, - "%d UE %s%son %s (%s %s - %s)\n", - e->error_count, e->msg, msg_aux, e->label, - e->location, detail, e->other_detail); - else - edac_mc_printk(mci, KERN_WARNING, - "%d UE %s%son %s (%s %s)\n", - e->error_count, e->msg, msg_aux, e->label, - e->location, detail); + edac_mc_printk(mci, KERN_WARNING, + "%d UE %s%son %s (%s page:0x%lx offset:0x%lx grain:%ld%s%s)\n", + e->error_count, e->msg, + *e->msg ? " " : "", + e->label, e->location, e->page_frame_number, e->offset_in_page, + e->grain, + *e->other_detail ? " - " : "", + e->other_detail); } if (edac_mc_get_panic_on_ue()) { - if (e->other_detail && *e->other_detail) - panic("UE %s%son %s (%s%s - %s)\n", - e->msg, msg_aux, e->label, e->location, detail, - e->other_detail); - else - panic("UE %s%son %s (%s%s)\n", - e->msg, msg_aux, e->label, e->location, detail); + panic("UE %s%son %s (%s page:0x%lx offset:0x%lx grain:%ld%s%s)\n", + e->msg, + *e->msg ? " " : "", + e->label, e->location, e->page_frame_number, e->offset_in_page, + e->grain, + *e->other_detail ? " - " : "", + e->other_detail); } edac_inc_ue_error(e); @@ -1096,7 +1082,6 @@ static void edac_inc_csrow(struct edac_raw_error_desc *e, int row, int chan) void edac_raw_mc_handle_error(struct edac_raw_error_desc *e) { struct mem_ctl_info *mci = error_desc_to_mci(e); - char detail[80]; u8 grain_bits; /* Sanity-check driver-supplied grain value. */ @@ -1113,22 +1098,10 @@ void edac_raw_mc_handle_error(struct edac_raw_error_desc *e) (e->page_frame_number << PAGE_SHIFT) | e->offset_in_page, grain_bits, e->syndrome, e->other_detail); - /* Memory type dependent details about the error */ - if (e->type == HW_EVENT_ERR_CORRECTED) { - snprintf(detail, sizeof(detail), - "page:0x%lx offset:0x%lx grain:%ld syndrome:0x%lx", - e->page_frame_number, e->offset_in_page, - e->grain, e->syndrome); - edac_ce_error(e, detail); - } else { - snprintf(detail, sizeof(detail), - "page:0x%lx offset:0x%lx grain:%ld", - e->page_frame_number, e->offset_in_page, e->grain); - - edac_ue_error(e, detail); - } - - + if (e->type == HW_EVENT_ERR_CORRECTED) + edac_ce_error(e); + else + edac_ue_error(e); } EXPORT_SYMBOL_GPL(edac_raw_mc_handle_error); @@ -1164,8 +1137,9 @@ void edac_mc_handle_error(const enum hw_event_mc_err_type type, e->page_frame_number = page_frame_number; e->offset_in_page = offset_in_page; e->syndrome = syndrome; - e->msg = msg; - e->other_detail = other_detail; + /* need valid strings here for both: */ + e->msg = msg ?: ""; + e->other_detail = other_detail ?: ""; /* * Check if the event report is consistent and if the memory location is -- cgit v1.2.3-59-g8ed1b