From patchwork Mon Oct 18 08:51:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jani Nikula X-Patchwork-Id: 12565377 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 31570C433F5 for ; Mon, 18 Oct 2021 08:51:29 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id EEE3B60F02 for ; Mon, 18 Oct 2021 08:51:28 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org EEE3B60F02 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id BCAA66E99A; Mon, 18 Oct 2021 08:51:27 +0000 (UTC) Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id 784D86E99A; Mon, 18 Oct 2021 08:51:26 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10140"; a="208307094" X-IronPort-AV: E=Sophos;i="5.85,381,1624345200"; d="scan'208";a="208307094" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Oct 2021 01:51:26 -0700 X-IronPort-AV: E=Sophos;i="5.85,381,1624345200"; d="scan'208";a="493501959" Received: from foboril-mobl1.ger.corp.intel.com (HELO localhost) ([10.249.44.188]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Oct 2021 01:51:21 -0700 From: Jani Nikula To: dri-devel@lists.freedesktop.org Cc: intel-gfx@lists.freedesktop.org, jani.nikula@intel.com, Stephen Rothwell , Daniel Vetter Subject: [PATCH] drm/locking: fix __stack_depot_* name conflict Date: Mon, 18 Oct 2021 11:51:13 +0300 Message-Id: <20211018085113.27033-1-jani.nikula@intel.com> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Stephen Rothwell Commit cd06ab2fd48f ("drm/locking: add backtrace for locking contended locks without backoff") added functions named __stack_depot_* in drm which conflict with stack depot. Rename to __drm_stack_depot_*. v2 by Jani: - Also rename __stack_depot_print References: https://lore.kernel.org/r/20211015202648.258445ef@canb.auug.org.au Fixes: cd06ab2fd48f ("drm/locking: add backtrace for locking contended locks without backoff") Cc: Daniel Vetter Signed-off-by: Stephen Rothwell Signed-off-by: Jani Nikula --- drivers/gpu/drm/drm_modeset_lock.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/drm_modeset_lock.c b/drivers/gpu/drm/drm_modeset_lock.c index 4d32b61fa1fd..c97323365675 100644 --- a/drivers/gpu/drm/drm_modeset_lock.c +++ b/drivers/gpu/drm/drm_modeset_lock.c @@ -79,7 +79,7 @@ static DEFINE_WW_CLASS(crtc_ww_class); #if IS_ENABLED(CONFIG_DRM_DEBUG_MODESET_LOCK) -static noinline depot_stack_handle_t __stack_depot_save(void) +static noinline depot_stack_handle_t __drm_stack_depot_save(void) { unsigned long entries[8]; unsigned int n; @@ -89,7 +89,7 @@ static noinline depot_stack_handle_t __stack_depot_save(void) return stack_depot_save(entries, n, GFP_NOWAIT | __GFP_NOWARN); } -static void __stack_depot_print(depot_stack_handle_t stack_depot) +static void __drm_stack_depot_print(depot_stack_handle_t stack_depot) { struct drm_printer p = drm_debug_printer("drm_modeset_lock"); unsigned long *entries; @@ -108,11 +108,11 @@ static void __stack_depot_print(depot_stack_handle_t stack_depot) kfree(buf); } #else /* CONFIG_DRM_DEBUG_MODESET_LOCK */ -static depot_stack_handle_t __stack_depot_save(void) +static depot_stack_handle_t __drm_stack_depot_save(void) { return 0; } -static void __stack_depot_print(depot_stack_handle_t stack_depot) +static void __drm_stack_depot_print(depot_stack_handle_t stack_depot) { } #endif /* CONFIG_DRM_DEBUG_MODESET_LOCK */ @@ -266,7 +266,7 @@ EXPORT_SYMBOL(drm_modeset_acquire_fini); void drm_modeset_drop_locks(struct drm_modeset_acquire_ctx *ctx) { if (WARN_ON(ctx->contended)) - __stack_depot_print(ctx->stack_depot); + __drm_stack_depot_print(ctx->stack_depot); while (!list_empty(&ctx->locked)) { struct drm_modeset_lock *lock; @@ -286,7 +286,7 @@ static inline int modeset_lock(struct drm_modeset_lock *lock, int ret; if (WARN_ON(ctx->contended)) - __stack_depot_print(ctx->stack_depot); + __drm_stack_depot_print(ctx->stack_depot); if (ctx->trylock_only) { lockdep_assert_held(&ctx->ww_ctx); @@ -317,7 +317,7 @@ static inline int modeset_lock(struct drm_modeset_lock *lock, ret = 0; } else if (ret == -EDEADLK) { ctx->contended = lock; - ctx->stack_depot = __stack_depot_save(); + ctx->stack_depot = __drm_stack_depot_save(); } return ret;