From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 37A53C2D0DB for ; Fri, 24 Jan 2020 14:46:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0AFD8206F0 for ; Fri, 24 Jan 2020 14:46:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389179AbgAXOqn (ORCPT ); Fri, 24 Jan 2020 09:46:43 -0500 Received: from mx2.suse.de ([195.135.220.15]:43432 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388376AbgAXOqf (ORCPT ); Fri, 24 Jan 2020 09:46:35 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id C9402AFA8; Fri, 24 Jan 2020 14:46:33 +0000 (UTC) From: Nicolas Saenz Julienne To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org Cc: Nicolas Saenz Julienne , bcm-kernel-feedback-list@broadcom.com, linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, devel@driverdev.osuosl.org Subject: [PATCH 06/22] staging: vc04_services: get rid of vchiq_platform_use_suspend_timer() Date: Fri, 24 Jan 2020 15:46:00 +0100 Message-Id: <20200124144617.2213-7-nsaenzjulienne@suse.de> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200124144617.2213-1-nsaenzjulienne@suse.de> References: <20200124144617.2213-1-nsaenzjulienne@suse.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The function always returns 0, delete the function and all code conditional to it. Signed-off-by: Nicolas Saenz Julienne --- .../interface/vchiq_arm/vchiq_2835_arm.c | 11 --- .../interface/vchiq_arm/vchiq_arm.c | 84 ++----------------- .../interface/vchiq_arm/vchiq_arm.h | 16 +--- 3 files changed, 7 insertions(+), 104 deletions(-) diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c index ca30bfd52919..1ffb2aea947c 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c @@ -284,17 +284,6 @@ vchiq_platform_videocore_wanted(struct vchiq_state *state) { return 1; // autosuspend not supported - videocore always wanted } - -int -vchiq_platform_use_suspend_timer(void) -{ - return 0; -} -void -vchiq_dump_platform_use_state(struct vchiq_state *state) -{ - vchiq_log_info(vchiq_arm_log_level, "Suspend timer not in use"); -} void vchiq_platform_handle_timeout(struct vchiq_state *state) { diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c index 4545df573c90..a75d5092cc73 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c @@ -48,9 +48,6 @@ int vchiq_arm_log_level = VCHIQ_LOG_DEFAULT; int vchiq_susp_log_level = VCHIQ_LOG_ERROR; -#define SUSPEND_TIMER_TIMEOUT_MS 100 -#define SUSPEND_RETRY_TIMER_TIMEOUT_MS 1000 - #define VC_SUSPEND_NUM_OFFSET 3 /* number of values before idle which are -ve */ static const char *const suspend_state_names[] = { "VC_SUSPEND_FORCE_CANCELED", @@ -79,8 +76,6 @@ static const char *const resume_state_names[] = { * requested */ #define FORCE_SUSPEND_TIMEOUT_MS 200 -static void suspend_timer_callback(struct timer_list *t); - struct user_service { struct vchiq_service *service; void *userdata; @@ -2384,12 +2379,7 @@ vchiq_arm_init_state(struct vchiq_state *state, * completion while videocore is suspended. */ set_resume_state(arm_state, VC_RESUME_RESUMED); - arm_state->suspend_timer_timeout = SUSPEND_TIMER_TIMEOUT_MS; - arm_state->suspend_timer_running = 0; arm_state->state = state; - timer_setup(&arm_state->suspend_timer, suspend_timer_callback, - 0); - arm_state->first_connect = 0; } @@ -2517,27 +2507,6 @@ set_resume_state(struct vchiq_arm_state *arm_state, } } -/* should be called with the write lock held */ -inline void -start_suspend_timer(struct vchiq_arm_state *arm_state) -{ - del_timer(&arm_state->suspend_timer); - arm_state->suspend_timer.expires = jiffies + - msecs_to_jiffies(arm_state->suspend_timer_timeout); - add_timer(&arm_state->suspend_timer); - arm_state->suspend_timer_running = 1; -} - -/* should be called with the write lock held */ -static inline void -stop_suspend_timer(struct vchiq_arm_state *arm_state) -{ - if (arm_state->suspend_timer_running) { - del_timer(&arm_state->suspend_timer); - arm_state->suspend_timer_running = 0; - } -} - static inline int need_resume(struct vchiq_state *state) { @@ -2626,28 +2595,6 @@ vchiq_platform_check_suspend(struct vchiq_state *state) return; } -void -vchiq_check_suspend(struct vchiq_state *state) -{ - struct vchiq_arm_state *arm_state = vchiq_platform_get_arm_state(state); - - if (!arm_state) - goto out; - - vchiq_log_trace(vchiq_susp_log_level, "%s", __func__); - - write_lock_bh(&arm_state->susp_res_lock); - if (arm_state->vc_suspend_state != VC_SUSPEND_SUSPENDED && - arm_state->first_connect && - !vchiq_videocore_wanted(state)) { - vchiq_arm_vcsuspend(state); - } - write_unlock_bh(&arm_state->susp_res_lock); - -out: - vchiq_log_trace(vchiq_susp_log_level, "%s exit", __func__); -} - /* This function should be called with the write lock held */ int vchiq_check_resume(struct vchiq_state *state) @@ -2702,9 +2649,6 @@ vchiq_use_internal(struct vchiq_state *state, struct vchiq_service *service, } write_lock_bh(&arm_state->susp_res_lock); - - stop_suspend_timer(arm_state); - local_uc = ++arm_state->videocore_use_count; local_entity_uc = ++(*entity_uc); @@ -2799,15 +2743,11 @@ vchiq_release_internal(struct vchiq_state *state, struct vchiq_service *service) --(*entity_uc); if (!vchiq_videocore_wanted(state)) { - if (vchiq_platform_use_suspend_timer()) { - start_suspend_timer(arm_state); - } else { - vchiq_log_info(vchiq_susp_log_level, - "%s %s count %d, state count %d - suspending", - __func__, entity, *entity_uc, - arm_state->videocore_use_count); - vchiq_arm_vcsuspend(state); - } + vchiq_log_info(vchiq_susp_log_level, + "%s %s count %d, state count %d - suspending", + __func__, entity, *entity_uc, + arm_state->videocore_use_count); + vchiq_arm_vcsuspend(state); } else vchiq_log_trace(vchiq_susp_log_level, "%s %s count %d, state count %d", @@ -2902,17 +2842,6 @@ vchiq_instance_set_trace(struct vchiq_instance *instance, int trace) instance->trace = (trace != 0); } -static void suspend_timer_callback(struct timer_list *t) -{ - struct vchiq_arm_state *arm_state = - from_timer(arm_state, t, suspend_timer); - struct vchiq_state *state = arm_state->state; - - vchiq_log_info(vchiq_susp_log_level, - "%s - suspend timer expired - check suspend", __func__); - vchiq_check_suspend(state); -} - enum vchiq_status vchiq_use_service(unsigned int handle) { @@ -3028,8 +2957,6 @@ vchiq_dump_service_use_state(struct vchiq_state *state) "--- Overall vchiq instance use count %d", vc_use_count); kfree(service_data); - - vchiq_dump_platform_use_state(state); } enum vchiq_status @@ -3059,7 +2986,6 @@ vchiq_check_service(struct vchiq_service *service) arm_state->videocore_use_count, suspend_state_names[arm_state->vc_suspend_state + VC_SUSPEND_NUM_OFFSET]); - vchiq_dump_service_use_state(service->state); } out: return ret; diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h index 35889a65b17f..6daeb3e4f4b1 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h @@ -54,9 +54,6 @@ struct vchiq_arm_state { enum vc_resume_status vc_resume_state; struct vchiq_state *state; - struct timer_list suspend_timer; - int suspend_timer_timeout; - int suspend_timer_running; /* Global use count for videocore. ** This is equal to the sum of the use counts for all services. When @@ -121,20 +118,14 @@ vchiq_platform_suspend(struct vchiq_state *state); extern int vchiq_platform_videocore_wanted(struct vchiq_state *state); -extern int -vchiq_platform_use_suspend_timer(void); - extern void vchiq_dump_platform_use_state(struct vchiq_state *state); -extern void -vchiq_dump_service_use_state(struct vchiq_state *state); - extern struct vchiq_arm_state* vchiq_platform_get_arm_state(struct vchiq_state *state); -extern int -vchiq_videocore_wanted(struct vchiq_state *state); +extern struct vchiq_arm_state* +vchiq_platform_get_arm_state(struct vchiq_state *state); extern enum vchiq_status vchiq_use_internal(struct vchiq_state *state, struct vchiq_service *service, @@ -166,7 +157,4 @@ extern void set_resume_state(struct vchiq_arm_state *arm_state, enum vc_resume_status new_state); -extern void -start_suspend_timer(struct vchiq_arm_state *arm_state); - #endif /* VCHIQ_ARM_H */ -- 2.25.0