From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pz2-f40.google.com (mail-pz2-f40.google.com [74.125.228.40]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C83594E9C0E for ; Fri, 2 Oct 2026 15:31:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.228.40 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790955099; cv=none; b=HHd5jtOQozFzSd1SeJB/dirVhAZFl7SJsQdyktEg7BAGi1sFSrVZx355TQ8VWS5RqlulB5pxdG2XEu9PyEDdaDSGfe74b5aDl0w2pSatvgMv9wFmc/LdrFSWeu6cufZ7bt2lsvveeR+/8pXnaqnBr9FVlrcs/yDCEQf0yQoHO9s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790955099; c=relaxed/simple; bh=waLTXygKBCktHFWWQLS7oUUGuXCOyf/dKmOnz5GRwSk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=cEAHm78qbqsjVW7ogOCyPk3BzBf6Uy3sSLepwJ7NV2xISjkwm78jQ+ogckAN36+sRHHDqdJvSvjAszc0ZWxrZLg5olJWAglNUmKZvLTj8YLglyOwc1MmHh+vMxeXr8ky28QYyGMHtOq+WzkZNeiBpBbg4Ank1+0JQqYc7/k5bmY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=Nv80etwF; arc=none smtp.client-ip=74.125.228.40 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Nv80etwF" Received: by mail-pz2-f40.google.com with SMTP id 41be03b00d2f7-cc74520b20bso2107601a12.1 for ; Fri, 02 Oct 2026 08:31:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1790955097; x=1791559897; darn=vger.kernel.org; h=content-transfer-encoding:content-type:mime-version:references :in-reply-to:message-id:date:subject:cc:to:from:from:to:cc:subject :date:message-id:reply-to:content-type; bh=a924JpHyOL6O0gTjq5zDam9XIZaPuYCQ6ZzQWo3jo2Y=; b=Nv80etwFMWnDQjLo3NqLXq2IcUbqyjdbK1zlgAWCu9/noaanVhuUi8kkLxtmLowI5/ FOmomr25NtsGBJY0vXuBStiJFhIlxf88tOed9i/SBwcUoY9fLEbVngV5F+Qs6E5kX3iQ jY0TbjF+IizuYf95SjsTO/CKyOqNxUtDor/bRcjxxcc4wlN96wCTIiKb3lbkHlEX1QOE jsSwN/+eCWADbCWYwj7jc/AAM7XI81+aLAkQyI14Am2z6o9HZ4z4zO33B6RokAfT7LxN PCRqnYe+XyzBCrOxohL3aSLqZIMOhdZp9o6s8q46fYpo37gfwrpwPWT7xCT+19pEXYCF 5a9A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1790955097; x=1791559897; h=content-transfer-encoding:content-type:mime-version:references :in-reply-to:message-id:date:subject:cc:to:from:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=a924JpHyOL6O0gTjq5zDam9XIZaPuYCQ6ZzQWo3jo2Y=; b=jZwiIU/5xd+sVli+tNBtmqDUR8+Xvha02n5JBY3CkDziB4MgJyjiDOYUEti0idiosm KGDl2gZ96EyOlSZphyehPTbri1MVE85gdVfwTCP13hq0YX6cQwCU+E+paNTHp0/BF0j8 +M8c9P+aF+2jGUmpJtca2/+/OB6P7bghDfmOQzIPUPBW0VZX6OZJM8mdiOYCzMiu6GcA hDbJl9HkyA6KkWwQWQFuwwsj1CYZRoSqsGusIk75m4vwkQeJQYfsHqHNa77jGnxIi8il Bc/WvSdVJ6Vo5erC2xBor2+UU5Hslc85aq5NQygteVjqgL0mqWPRWz6x1eGc2bHiBy1T db7g== X-Forwarded-Encrypted: i=1; AKwUvByOOxxLDZ7up76gvF1guD4fpibREIo38qMTJxFbk2Klh0q9VIxcl1LPIJig9oTZ87zda4ylh3nMxd4Sotc=@vger.kernel.org X-Gm-Message-State: AFq9FYKJzm6nPPPIewzJcGSho9LCgI8uYLH78Fu1CluCnnqF6Z6DIjut FrsBijRH7BZdxwtLTDl9y9rJodtmkTEmRyfy7msp9VNxpqFboTYqQU6j X-Gm-Gg: AYBFou05G4p/m18rfEf6cBQ8+nNvkSQ/61TMW1n6tB2+hcfG3wh5WxFdjM8EHyZeZze CyYDU2z6L04JKuFqPYTXUta7Ggel1l6geAAc66aGtoW2AxeK/1j/e0Me/AEh3mrngyNQZS4U2Wk 8KRwIRlgRVH9rD4cWcpdqlqJsToNM49BVyW9tU6XGKVQD2SPfIZXFvgZVWvaWo4WvPKffM+69vg Px/Ey0+xqXYISiys9Ky4G9nKAXILFbeBaVyI8HG9sLFmnOrxYFC2rbYPHz9MdwIVoZi92IZmn00 ze+IjV6gB3xonEn7SlIPAapMeQmZUJdsxgrSXl5qVyfBhr/7ZIjL2Y12lyedT8Bw2YU37GKCkqj 9oRd0je6oxOh+1LiAU/SMjF185GRofhl2o7GuqraczuZlgRsbRZYdIZSfI3jHyVsJLHn1zN0jkT NlDD414AwlfY2uCXVbCCEWnpplg+P8OEdgxV5lruZeglSKa91sImpSMtzEirdH1L/qoK5goa6WN FsIWMsvuUGLD60Q6SvZ874= X-Received: by 2002:a17:90b:5483:b0:3a4:b509:88be with SMTP id 98e67ed59e1d1-3a6ce981729mr1746671a91.15.1790955096935; Fri, 02 Oct 2026 08:31:36 -0700 (PDT) Received: from osman.mioffice.cn ([43.224.245.178]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3a6fc716b5esm1649468a91.14.2026.10.02.08.31.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Oct 2026 08:31:36 -0700 (PDT) From: Zhan Xusheng X-Google-Original-From: Zhan Xusheng To: Thomas Gleixner , =?UTF-8?q?Thomas=20Wei=C3=9Fschuh?= Cc: Yury Norov , Rasmus Villemoes , Andy Lutomirski , Vincenzo Frascino , David Laight , linux-kernel@vger.kernel.org, Zhan Xusheng Subject: [PATCH v7 4/5] vdso: Move BITS_PER_BYTE and BITS_PER_TYPE() to vdso/bits.h Date: Fri, 2 Oct 2026 23:31:02 +0800 Message-ID: <20261002153104.1347978-5-zhanxusheng@xiaomi.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20261002153104.1347978-1-zhanxusheng@xiaomi.com> References: <20261002153104.1347978-1-zhanxusheng@xiaomi.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit lib/vdso/gettimeofday.c is built into the vDSO, where linux/bits.h is not available. The next patch wants BITS_PER_TYPE() there. Move BITS_PER_BYTE and BITS_PER_TYPE() from linux/bits.h to vdso/bits.h. linux/bits.h already includes vdso/bits.h, so its users are unaffected, and vdso/datapage.h already pulls vdso/bits.h into the vDSO translation units. tools/perf/check-headers.sh tracks both headers, so update the tools copies in lockstep to keep that check quiet. Suggested-by: Thomas Weißschuh Signed-off-by: Zhan Xusheng Reviewed-by: Thomas Weißschuh --- include/linux/bits.h | 2 -- include/vdso/bits.h | 2 ++ tools/include/linux/bits.h | 2 -- tools/include/vdso/bits.h | 2 ++ 4 files changed, 4 insertions(+), 4 deletions(-) diff --git a/include/linux/bits.h b/include/linux/bits.h index b7509f15718e..7f48e6af1fe7 100644 --- a/include/linux/bits.h +++ b/include/linux/bits.h @@ -9,8 +9,6 @@ #define BIT_WORD(nr) ((nr) / BITS_PER_LONG) #define BIT_ULL_MASK(nr) (ULL(1) << ((nr) % BITS_PER_LONG_LONG)) #define BIT_ULL_WORD(nr) ((nr) / BITS_PER_LONG_LONG) -#define BITS_PER_BYTE 8 -#define BITS_PER_TYPE(type) (sizeof(type) * BITS_PER_BYTE) /* * Create a contiguous bitmask starting at bit position @l and ending at diff --git a/include/vdso/bits.h b/include/vdso/bits.h index 388b212088ea..a0b6d404495a 100644 --- a/include/vdso/bits.h +++ b/include/vdso/bits.h @@ -6,5 +6,7 @@ #define BIT(nr) (UL(1) << (nr)) #define BIT_ULL(nr) (ULL(1) << (nr)) +#define BITS_PER_BYTE 8 +#define BITS_PER_TYPE(type) (sizeof(type) * BITS_PER_BYTE) #endif /* __VDSO_BITS_H */ diff --git a/tools/include/linux/bits.h b/tools/include/linux/bits.h index b7509f15718e..7f48e6af1fe7 100644 --- a/tools/include/linux/bits.h +++ b/tools/include/linux/bits.h @@ -9,8 +9,6 @@ #define BIT_WORD(nr) ((nr) / BITS_PER_LONG) #define BIT_ULL_MASK(nr) (ULL(1) << ((nr) % BITS_PER_LONG_LONG)) #define BIT_ULL_WORD(nr) ((nr) / BITS_PER_LONG_LONG) -#define BITS_PER_BYTE 8 -#define BITS_PER_TYPE(type) (sizeof(type) * BITS_PER_BYTE) /* * Create a contiguous bitmask starting at bit position @l and ending at diff --git a/tools/include/vdso/bits.h b/tools/include/vdso/bits.h index 388b212088ea..a0b6d404495a 100644 --- a/tools/include/vdso/bits.h +++ b/tools/include/vdso/bits.h @@ -6,5 +6,7 @@ #define BIT(nr) (UL(1) << (nr)) #define BIT_ULL(nr) (ULL(1) << (nr)) +#define BITS_PER_BYTE 8 +#define BITS_PER_TYPE(type) (sizeof(type) * BITS_PER_BYTE) #endif /* __VDSO_BITS_H */ -- 2.43.0