From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=74.125.82.69 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793825957; b=n8dW4c99Y9am6fpMw1OJ0ypPwLwDCOW4zrkNwIK/KZlgAXltiYMkaE0jt8byDEM9zksO OzHK71tlhWmJIjnUUVSZJPIUIJ94/Q0SalbOKo2KPqL4/QTbwl/C83gJ+e4LJhuBvhInI o2hxoxAPS+xiA/JrBr5/xrSXB4be5E04bOVewHVpIv1TxqZqVG/Acl+vxzTxcbjnRbFpP YGGdZt4BGvSkSTr7oAw/3tj/yzJRESRrx38JIeUQj2oqYKQiiEYkNazI30eHcd+kP6kQA 0cGVdqNkqtPodOlaFbQ84KtTiW0eB27kcr7bFlszslSe1bdZvTQKsYNNeTxBkXYD5lw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793825957; h=DMARC-Filter:Received:DKIM-Signature:X-Google-DKIM-Signature: X-Forwarded-Encrypted:X-Gm-Message-State:X-Received:Date:In-Reply-To: Mime-Version:References:X-Mailer:Message-ID:Subject:From:To:Cc: Content-Type; bh=pVkLc8xSyhslD11C4DSvZnRo7dsv6FWhh8v0TPGw3qA=; b=dTUUSKS1V7tuqt32nhpjzzkOvha/uBr4kfgjO67+eJTeaupguBDKFtw62H0AsgUT0A12 DeuC0M0g//WsFE08yQUUr/o+OoFr4pCOboee3uuLzbFX23MNFNMk8iNTOveQCrybjcDKt DnavvIl//lvlPVKFvbsHG/ZQ2zsnMS9IMHg/ZLw84rrxfuclwKfpHmD0d6Y45sQrYmNHP LKe0yTQvSF1739FIC5WNZn0R+v+K7Ofq+Jy2qoUkOWhMDvAAQWZ10LopNVyGBU4b67dkK DCMzRoInjbvG4HhSlU9zn4Xv3a952IUf+wn+v5mLr1/Vlm4e1t3lnGkFccuB0fa6wvg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=google.com; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com; dkim=pass header.d=google.com header.i=@google.com header.a=rsa-sha256 header.s=20260707 header.b=l6zFms6C; arc=none smtp.remote-ip=74.125.82.69 Received: from mail-dl1-f69.google.com (mail-dl1-f69.google.com [74.125.82.69]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 87F6A609CAE9 for ; Wed, 4 Nov 2026 20:59:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 87F6A609CAE9 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--irogers.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=google.com header.i=@google.com header.a=rsa-sha256 header.s=20260707 header.b=l6zFms6C Received: by mail-dl1-f69.google.com with SMTP id a92af1059eb24-1acbaf81bebso1547902c88.1 for ; Wed, 04 Nov 2026 12:59:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20260707; t=1793825957; x=1794430757; darn=vger.kernel.org; h=content-type:cc:to:from:subject:message-id:references:mime-version :in-reply-to:date:from:to:cc:subject:date:message-id:reply-to :content-type; bh=pVkLc8xSyhslD11C4DSvZnRo7dsv6FWhh8v0TPGw3qA=; b=l6zFms6Ci0gFXFw30uQIWUkIkwYmvRxAMdghJhLpZ+go3ISZ7Jniiuzq66BwbUb56I 8mb09obnK8YnNHaTkVm31Ea2v0UaaWNRllclxcfvlHrbTKPfpt2mWvOmNcQ2IyIK/0C1 DfIhWhoWkiz1+kqpWV16xBvy84wx0BvptX+abXOT++5la9IwOK98ALjhdsIkleO8SRrZ UYTS5A7keueVD43yv1v4Sqo5zLBwYn6V+QQi8m0nH7D7s1TRarej/Z1/EIBqqvUN7kw8 x4hVb+3XeIJvkIqd5V38nbi4MullO2BRucBgQ7ojyWt3+6qdewgcbox4mWSTpg4LYNx+ Gf0A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1793825957; x=1794430757; h=content-type:cc:to:from:subject:message-id:references:mime-version :in-reply-to:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=pVkLc8xSyhslD11C4DSvZnRo7dsv6FWhh8v0TPGw3qA=; b=z9H4e1h5eO7ZRQO6jVPKNJKnhAde2zVi1Mo+y4+fOMmWwTQpbVbxQuw/qzKgj0bmpa wswCPapNgDjROPnvxa3XqteD2bZpIgk7yG+k9NZ9M5YfOz+TA43kySd1IXx6iIVH9YZ1 1+siwuGDcawXROwc9+ioCSqgzD7FEsy3Pq4BYXUw8m5bXpvQF+/9TJtPkA9tiTe8IfR5 OLDHI5x1h1RQ+aDac/C6om1NF14nTtyip6eA4O/PjlulVpnAmJAF1Ts4FteXWuBaVmn1 lXMrGEP3QL2n8mZhAA4VJCIV/DB30Slp+qo9KKzRtUWzsM7l2vptuAzj8fzm6LYyQArF x0Dw== X-Forwarded-Encrypted: i=1; AKwUvBwF+Yc+Bhzhd80PqrME5b1JBvhH41TiQrMw3D4Umu5OqdjcGXM23WS+CbhX7UQhtAIMQRxhhX06fzn8OPw=@vger.kernel.org X-Gm-Message-State: APuU4Z9jpPYpv1wkOsfOYSnYx6DfhWKiIDCE+BWiFWWl5OxKSr3ESckO 8ZoDghvP5gdL+4jj2JgMaaLHX/OiybYJXo1aHUm3X/19GOU47Xdec9fVuboG2L/46T8Cuexx+QC B+DaLTkljDQ== X-Received: from dlbsj3.prod.google.com ([2002:a05:7022:f903:b0:1b0:4179:ee7b]) (user=irogers job=prod-delivery.src-stubby-dispatcher) by 2002:a05:7022:5f15:b0:16a:f5cd:365 with SMTP id a92af1059eb24-1b009604eb1mr18474520c88.5.1793825956090; Wed, 04 Nov 2026 12:59:16 -0800 (PST) Date: Wed, 4 Nov 2026 12:58:51 -0800 In-Reply-To: <20261104205909.2078411-1-irogers@google.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list Mime-Version: 1.0 References: <20261104205909.2078411-1-irogers@google.com> X-Mailer: git-send-email 2.56.0.455.g6c5a503b38-goog Message-ID: <20261104205909.2078411-2-irogers@google.com> Subject: [PATCH v9 01/19] compiler-context-analysis: Avoid unused parameter warning in _context_unsafe_alias() From: Ian Rogers To: irogers@google.com, acme@kernel.org, namhyung@kernel.org Cc: adrian.hunter@intel.com, bvanassche@acm.org, elver@google.com, james.clark@linaro.org, jolsa@kernel.org, justinstitt@google.com, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, llvm@lists.linux.dev, mingo@redhat.com, morbo@google.com, nathan@kernel.org, ndesaulniers@google.com, peterz@infradead.org Content-Type: text/plain; charset="UTF-8" _context_unsafe_alias() does not use its parameter 'p', which triggers -Wunused-parameter when building code that enables -Wextra (such as tools/perf, tools/lib/perf, tools/lib/subcmd, and tools/lib/symbol). Explicitly cast 'p' to void to silence the warning, matching __assume_ctx_lock() and __assume_shared_ctx_lock(). Reviewed-by: Marco Elver Signed-off-by: Ian Rogers --- include/linux/compiler-context-analysis.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/compiler-context-analysis.h b/include/linux/compiler-context-analysis.h index 8302ebc2ea8c..024e303188ad 100644 --- a/include/linux/compiler-context-analysis.h +++ b/include/linux/compiler-context-analysis.h @@ -243,7 +243,7 @@ * alias as a function argument). */ #define context_unsafe_alias(p) _context_unsafe_alias((void **)&(p)) -static inline void _context_unsafe_alias(void **p) { } +static inline void _context_unsafe_alias(void **p) { (void)p; } /** * token_context_lock() - declare an abstract global context lock instance -- 2.56.0.455.g6c5a503b38-goog