From patchwork Tue Jul 18 21:11:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 13318391 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CD4C7C001B0 for ; Wed, 19 Jul 2023 06:52:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=lzydxleurKX1n4cQOE5NugH9QlQQE0hTTi8EFmw724A=; b=xuoSc9n4VgJbqA y9QZxLvtbWy0fJaa3w54qYuUZ7+5EvHxYBJyvSwETjtmzcVca5FMPUz/vQwthG8+0RhFl6YroicW4 PJSFmZ5w09XTfgdo5QxMeWPq6sDvv1iEBPqcI/E4oC1B1NwuH4/OZ/w26uizAzeLPI7ZhUEe6VDcD 4z/uze3v3iW66hAgj1nSHanDoEttNctCMHYWFcg7xnHBkEpAJ2EwgTCgNhHolEEFmlgv929+xRVTV hpO54yK57OsLuCtZYfji9HGxxPYFyktI0wDHJ9LA7A7iFC8H2NSN0F8uR/k7B97QIQUaAZvF40K9b pyv/hy9ItR/RGndidkkg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qM13A-005wgF-1T; Wed, 19 Jul 2023 06:52:40 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qM139-005wf2-0x for linux-arm-kernel@bombadil.infradead.org; Wed, 19 Jul 2023 06:52:39 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Transfer-Encoding:MIME-Version :References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=l8R6lNRK1TWCK1AKG93F9HdbW29WXER0ueAedRqGnYY=; b=X329wjxu7w7Y52895xc2SFoI1x V+c6YDIXklDTh86jB8C2WwwgJlOdOzz6z+bENCvgGOBAEg+jwkg/P8taFUnwZ7beZ2Oxbe9jEzNKF xnpr+FPpsU8lkbRSBS3gtdlpXU0BrwMwP7oID36VaU+u+Nidv/lA05hXxJoRaMTwlEhWo5zNRIrpn 0UgMvNcqH/rbv5Tvy3Uq/tHwAuzlEPygJfIYVzII2/d+fSCBlSqQAbMJ3lFNh42GxbL7L5MSB0pW/ ojxBsSOWh9yTrP7vsAaSquxuevqM7/wM9kLtS2UY20cQH9fy3bPc6FFU7ArAaxT4OkYUKzvoLlAWD sMLIWPfw==; Received: from mga07.intel.com ([134.134.136.100]) by desiato.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qLrza-00C3CB-2V for linux-arm-kernel@lists.infradead.org; Tue, 18 Jul 2023 21:12:41 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1689714742; x=1721250742; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=/GbUJlxD6B4ZMSBm1ruFiwzehTQGXiEYVbSNTGBn/Ao=; b=EIa673/icls4RKAooXCMCR3MvOu0t86Rqas0sPe0JG4oHJbkRjrZxk7T DAmWdlVe0etil+a4C5o/zz0BgSeXxFnJl59INuJNvYLvVtPJuOpM2cyUD SWYP4dAXDU37Pjxgah6Qc8jNDtd9fAAA2RJMeZhWlffe5WPwu2M1Ia3nM LD2yVIuAcFyEOHPUxUX+iX0e5z1sfBLDbNQsLe8p3j6BdCXED5BvahO+C 6H2eCE1TNMeYBL1TXRBkqmHDBlvSs7WnTdc/ZV2WPetO7SZ+URT/SAHls XpsrotjcKyytr00bJWv/QwbbnSlo2uispZbXbBk1ugDyYPIoOws/drpP5 Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10775"; a="432495837" X-IronPort-AV: E=Sophos;i="6.01,215,1684825200"; d="scan'208";a="432495837" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Jul 2023 14:11:50 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10775"; a="753469039" X-IronPort-AV: E=Sophos;i="6.01,215,1684825200"; d="scan'208";a="753469039" Received: from black.fi.intel.com ([10.237.72.28]) by orsmga008.jf.intel.com with ESMTP; 18 Jul 2023 14:11:42 -0700 Received: by black.fi.intel.com (Postfix, from userid 1003) id A9EFC12C; Wed, 19 Jul 2023 00:11:49 +0300 (EEST) From: Andy Shevchenko To: Andy Shevchenko , Shuah Khan , David Gow , Daniel Latypov , "Steven Rostedt (Google)" , Bjorn Helgaas , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, kunit-dev@googlegroups.com, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-trace-kernel@vger.kernel.org Cc: Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Brendan Higgins , Mark Rutland , Lorenzo Pieralisi , Sudeep Holla , Masami Hiramatsu , Andrew Morton Subject: [PATCH v4 1/4] kernel.h: Split out COUNT_ARGS() and CONCATENATE() to args.h Date: Wed, 19 Jul 2023 00:11:44 +0300 Message-Id: <20230718211147.18647-2-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.40.0.1.gaa8946217a0b In-Reply-To: <20230718211147.18647-1-andriy.shevchenko@linux.intel.com> References: <20230718211147.18647-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230718_221232_333875_61C2B03E X-CRM114-Status: GOOD ( 20.62 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org kernel.h is being used as a dump for all kinds of stuff for a long time. The COUNT_ARGS() and CONCATENATE() macros may be used in some places without need of the full kernel.h dependency train with it. Here is the attempt on cleaning it up by splitting out these macros(). While at it, include new header where it's being used. Signed-off-by: Andy Shevchenko Acked-by: Steven Rostedt (Google) Acked-by: Bjorn Helgaas # PCI --- include/kunit/test.h | 1 + include/linux/args.h | 28 ++++++++++++++++++++++++++++ include/linux/kernel.h | 7 ------- include/linux/pci.h | 2 +- include/trace/bpf_probe.h | 2 ++ 5 files changed, 32 insertions(+), 8 deletions(-) create mode 100644 include/linux/args.h diff --git a/include/kunit/test.h b/include/kunit/test.h index 23120d50499e..107c81431634 100644 --- a/include/kunit/test.h +++ b/include/kunit/test.h @@ -12,6 +12,7 @@ #include #include +#include #include #include #include diff --git a/include/linux/args.h b/include/linux/args.h new file mode 100644 index 000000000000..8ff60a54eb7d --- /dev/null +++ b/include/linux/args.h @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef _LINUX_ARGS_H +#define _LINUX_ARGS_H + +/* + * How do these macros work? + * + * In __COUNT_ARGS() _0 to _12 are just placeholders from the start + * in order to make sure _n is positioned over the correct number + * from 12 to 0 (depending on X, which is a variadic argument list). + * They serve no purpose other than occupying a position. Since each + * macro parameter must have a distinct identifier, those identifiers + * are as good as any. + * + * In COUNT_ARGS() we use actual integers, so __COUNT_ARGS() returns + * that as _n. + */ + +/* This counts to 12. Any more, it will return 13th argument. */ +#define __COUNT_ARGS(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _n, X...) _n +#define COUNT_ARGS(X...) __COUNT_ARGS(, ##X, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0) + +/* Concatenate two parameters, but allow them to be expanded beforehand. */ +#define __CONCAT(a, b) a ## b +#define CONCATENATE(a, b) __CONCAT(a, b) + +#endif /* _LINUX_ARGS_H */ diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 0b00e1aef33d..15d9496db169 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -419,13 +419,6 @@ ftrace_vprintk(const char *fmt, va_list ap) static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { } #endif /* CONFIG_TRACING */ -/* This counts to 12. Any more, it will return 13th argument. */ -#define __COUNT_ARGS(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _n, X...) _n -#define COUNT_ARGS(X...) __COUNT_ARGS(, ##X, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0) - -#define __CONCAT(a, b) a ## b -#define CONCATENATE(a, b) __CONCAT(a, b) - /* Rebuild everything on CONFIG_FTRACE_MCOUNT_RECORD */ #ifdef CONFIG_FTRACE_MCOUNT_RECORD # define REBUILD_DUE_TO_FTRACE_MCOUNT_RECORD diff --git a/include/linux/pci.h b/include/linux/pci.h index 0ff7500772e6..eeb2e6f6130f 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -23,7 +23,7 @@ #ifndef LINUX_PCI_H #define LINUX_PCI_H - +#include #include #include diff --git a/include/trace/bpf_probe.h b/include/trace/bpf_probe.h index 1f7fc1fc590c..e609cd7da47e 100644 --- a/include/trace/bpf_probe.h +++ b/include/trace/bpf_probe.h @@ -12,6 +12,8 @@ #undef __perf_task #define __perf_task(t) (t) +#include + /* cast any integer, pointer, or small struct to u64 */ #define UINTTYPE(size) \ __typeof__(__builtin_choose_expr(size == 1, (u8)1, \ From patchwork Tue Jul 18 21:11:45 2023 Content-Type: text/plain; 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Peter Anvin" , Brendan Higgins , Mark Rutland , Lorenzo Pieralisi , Sudeep Holla , Masami Hiramatsu , Andrew Morton Subject: [PATCH v4 2/4] x86/asm: Replace custom COUNT_ARGS() & CONCATENATE() implementations Date: Wed, 19 Jul 2023 00:11:45 +0300 Message-Id: <20230718211147.18647-3-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.40.0.1.gaa8946217a0b In-Reply-To: <20230718211147.18647-1-andriy.shevchenko@linux.intel.com> References: <20230718211147.18647-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230718_221242_164716_66B2E6FC X-CRM114-Status: GOOD ( 11.01 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Replace custom implementation of the macros from args.h. Signed-off-by: Andy Shevchenko --- arch/x86/include/asm/rmwcc.h | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/arch/x86/include/asm/rmwcc.h b/arch/x86/include/asm/rmwcc.h index 7fa611216417..4b081e0d3306 100644 --- a/arch/x86/include/asm/rmwcc.h +++ b/arch/x86/include/asm/rmwcc.h @@ -2,12 +2,7 @@ #ifndef _ASM_X86_RMWcc #define _ASM_X86_RMWcc -/* This counts to 12. Any more, it will return 13th argument. */ -#define __RMWcc_ARGS(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _n, X...) _n -#define RMWcc_ARGS(X...) __RMWcc_ARGS(, ##X, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0) - -#define __RMWcc_CONCAT(a, b) a ## b -#define RMWcc_CONCAT(a, b) __RMWcc_CONCAT(a, b) +#include #define __CLOBBERS_MEM(clb...) "memory", ## clb @@ -48,7 +43,7 @@ cc_label: c = true; \ #define GEN_UNARY_RMWcc_3(op, var, cc) \ GEN_UNARY_RMWcc_4(op, var, cc, "%[var]") -#define GEN_UNARY_RMWcc(X...) RMWcc_CONCAT(GEN_UNARY_RMWcc_, RMWcc_ARGS(X))(X) +#define GEN_UNARY_RMWcc(X...) CONCATENATE(GEN_UNARY_RMWcc_, COUNT_ARGS(X))(X) #define GEN_BINARY_RMWcc_6(op, var, cc, vcon, _val, arg0) \ __GEN_RMWcc(op " %[val], " arg0, var, cc, \ @@ -57,7 +52,7 @@ cc_label: c = true; \ #define GEN_BINARY_RMWcc_5(op, var, cc, vcon, val) \ GEN_BINARY_RMWcc_6(op, var, cc, vcon, val, "%[var]") -#define GEN_BINARY_RMWcc(X...) RMWcc_CONCAT(GEN_BINARY_RMWcc_, RMWcc_ARGS(X))(X) +#define GEN_BINARY_RMWcc(X...) 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Peter Anvin" , Brendan Higgins , Mark Rutland , Lorenzo Pieralisi , Sudeep Holla , Masami Hiramatsu , Andrew Morton Subject: [PATCH v4 3/4] arm64: smccc: Replace custom COUNT_ARGS() & CONCATENATE() implementations Date: Wed, 19 Jul 2023 00:11:46 +0300 Message-Id: <20230718211147.18647-4-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.40.0.1.gaa8946217a0b In-Reply-To: <20230718211147.18647-1-andriy.shevchenko@linux.intel.com> References: <20230718211147.18647-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230718_221214_146429_CCEA728D X-CRM114-Status: GOOD ( 11.82 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Replace custom implementation of the macros from args.h. Signed-off-by: Andy Shevchenko --- include/linux/arm-smccc.h | 69 ++++++++++++++++++--------------------- 1 file changed, 32 insertions(+), 37 deletions(-) diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h index f196c19f8e55..7c67c17321d4 100644 --- a/include/linux/arm-smccc.h +++ b/include/linux/arm-smccc.h @@ -5,6 +5,7 @@ #ifndef __LINUX_ARM_SMCCC_H #define __LINUX_ARM_SMCCC_H +#include #include #include @@ -413,31 +414,26 @@ asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1, #endif -#define ___count_args(_0, _1, _2, _3, _4, _5, _6, _7, _8, x, ...) x +#define __constraint_read_2 "r" (arg0) +#define __constraint_read_3 __constraint_read_2, "r" (arg1) +#define __constraint_read_4 __constraint_read_3, "r" (arg2) +#define __constraint_read_5 __constraint_read_4, "r" (arg3) +#define __constraint_read_6 __constraint_read_5, "r" (arg4) +#define __constraint_read_7 __constraint_read_6, "r" (arg5) +#define __constraint_read_8 __constraint_read_7, "r" (arg6) +#define __constraint_read_9 __constraint_read_8, "r" (arg7) -#define __count_args(...) \ - ___count_args(__VA_ARGS__, 7, 6, 5, 4, 3, 2, 1, 0) - -#define __constraint_read_0 "r" (arg0) -#define __constraint_read_1 __constraint_read_0, "r" (arg1) -#define __constraint_read_2 __constraint_read_1, "r" (arg2) -#define __constraint_read_3 __constraint_read_2, "r" (arg3) -#define __constraint_read_4 __constraint_read_3, "r" (arg4) -#define __constraint_read_5 __constraint_read_4, "r" (arg5) -#define __constraint_read_6 __constraint_read_5, "r" (arg6) -#define __constraint_read_7 __constraint_read_6, "r" (arg7) - -#define __declare_arg_0(a0, res) \ +#define __declare_arg_2(a0, res) \ struct arm_smccc_res *___res = res; \ register unsigned long arg0 asm("r0") = (u32)a0 -#define __declare_arg_1(a0, a1, res) \ +#define __declare_arg_3(a0, a1, res) \ typeof(a1) __a1 = a1; \ struct arm_smccc_res *___res = res; \ register unsigned long arg0 asm("r0") = (u32)a0; \ register typeof(a1) arg1 asm("r1") = __a1 -#define __declare_arg_2(a0, a1, a2, res) \ +#define __declare_arg_4(a0, a1, a2, res) \ typeof(a1) __a1 = a1; \ typeof(a2) __a2 = a2; \ struct arm_smccc_res *___res = res; \ @@ -445,7 +441,7 @@ asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1, register typeof(a1) arg1 asm("r1") = __a1; \ register typeof(a2) arg2 asm("r2") = __a2 -#define __declare_arg_3(a0, a1, a2, a3, res) \ +#define __declare_arg_5(a0, a1, a2, a3, res) \ typeof(a1) __a1 = a1; \ typeof(a2) __a2 = a2; \ typeof(a3) __a3 = a3; \ @@ -455,34 +451,26 @@ asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1, register typeof(a2) arg2 asm("r2") = __a2; \ register typeof(a3) arg3 asm("r3") = __a3 -#define __declare_arg_4(a0, a1, a2, a3, a4, res) \ +#define __declare_arg_6(a0, a1, a2, a3, a4, res) \ typeof(a4) __a4 = a4; \ - __declare_arg_3(a0, a1, a2, a3, res); \ + __declare_arg_5(a0, a1, a2, a3, res); \ register typeof(a4) arg4 asm("r4") = __a4 -#define __declare_arg_5(a0, a1, a2, a3, a4, a5, res) \ +#define __declare_arg_7(a0, a1, a2, a3, a4, a5, res) \ typeof(a5) __a5 = a5; \ - __declare_arg_4(a0, a1, a2, a3, a4, res); \ + __declare_arg_6(a0, a1, a2, a3, a4, res); \ register typeof(a5) arg5 asm("r5") = __a5 -#define __declare_arg_6(a0, a1, a2, a3, a4, a5, a6, res) \ +#define __declare_arg_8(a0, a1, a2, a3, a4, a5, a6, res) \ typeof(a6) __a6 = a6; \ - __declare_arg_5(a0, a1, a2, a3, a4, a5, res); \ + __declare_arg_7(a0, a1, a2, a3, a4, a5, res); \ register typeof(a6) arg6 asm("r6") = __a6 -#define __declare_arg_7(a0, a1, a2, a3, a4, a5, a6, a7, res) \ +#define __declare_arg_9(a0, a1, a2, a3, a4, a5, a6, a7, res) \ typeof(a7) __a7 = a7; \ - __declare_arg_6(a0, a1, a2, a3, a4, a5, a6, res); \ + __declare_arg_8(a0, a1, a2, a3, a4, a5, a6, res); \ register typeof(a7) arg7 asm("r7") = __a7 -#define ___declare_args(count, ...) __declare_arg_ ## count(__VA_ARGS__) -#define __declare_args(count, ...) ___declare_args(count, __VA_ARGS__) - -#define ___constraints(count) \ - : __constraint_read_ ## count \ - : smccc_sve_clobbers "memory" -#define __constraints(count) ___constraints(count) - /* * We have an output list that is not necessarily used, and GCC feels * entitled to optimise the whole sequence away. "volatile" is what @@ -494,11 +482,14 @@ asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1, register unsigned long r1 asm("r1"); \ register unsigned long r2 asm("r2"); \ register unsigned long r3 asm("r3"); \ - __declare_args(__count_args(__VA_ARGS__), __VA_ARGS__); \ + CONCATENATE(__declare_arg_, \ + COUNT_ARGS(__VA_ARGS__))(__VA_ARGS__); \ asm volatile(SMCCC_SVE_CHECK \ inst "\n" : \ "=r" (r0), "=r" (r1), "=r" (r2), "=r" (r3) \ - __constraints(__count_args(__VA_ARGS__))); \ + : CONCATENATE(__constraint_read_, \ + COUNT_ARGS(__VA_ARGS__)) \ + : smccc_sve_clobbers "memory"); \ if (___res) \ *___res = (typeof(*___res)){r0, r1, r2, r3}; \ } while (0) @@ -542,8 +533,12 @@ asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1, */ #define __fail_smccc_1_1(...) \ do { \ - __declare_args(__count_args(__VA_ARGS__), __VA_ARGS__); \ - asm ("" : __constraints(__count_args(__VA_ARGS__))); \ + CONCATENATE(__declare_arg_, \ + COUNT_ARGS(__VA_ARGS__))(__VA_ARGS__); \ + asm ("" : \ + : CONCATENATE(__constraint_read_, \ + COUNT_ARGS(__VA_ARGS__)) \ + : smccc_sve_clobbers "memory"); 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Peter Anvin" , Brendan Higgins , Mark Rutland , Lorenzo Pieralisi , Sudeep Holla , Masami Hiramatsu , Andrew Morton Subject: [PATCH v4 4/4] genetlink: Replace custom CONCATENATE() implementation Date: Wed, 19 Jul 2023 00:11:47 +0300 Message-Id: <20230718211147.18647-5-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.40.0.1.gaa8946217a0b In-Reply-To: <20230718211147.18647-1-andriy.shevchenko@linux.intel.com> References: <20230718211147.18647-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230718_221214_072097_AED8AAB1 X-CRM114-Status: GOOD ( 16.01 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Replace custom implementation of the macros from args.h. Signed-off-by: Andy Shevchenko --- include/linux/genl_magic_func.h | 27 ++++++++++++++------------- include/linux/genl_magic_struct.h | 8 +++----- 2 files changed, 17 insertions(+), 18 deletions(-) diff --git a/include/linux/genl_magic_func.h b/include/linux/genl_magic_func.h index 2984b0cb24b1..d4da060b7532 100644 --- a/include/linux/genl_magic_func.h +++ b/include/linux/genl_magic_func.h @@ -2,6 +2,7 @@ #ifndef GENL_MAGIC_FUNC_H #define GENL_MAGIC_FUNC_H +#include #include #include @@ -23,7 +24,7 @@ #define GENL_struct(tag_name, tag_number, s_name, s_fields) \ [tag_name] = { .type = NLA_NESTED }, -static struct nla_policy CONCAT_(GENL_MAGIC_FAMILY, _tla_nl_policy)[] = { +static struct nla_policy CONCATENATE(GENL_MAGIC_FAMILY, _tla_nl_policy)[] = { #include GENL_MAGIC_INCLUDE_FILE }; @@ -209,7 +210,7 @@ static int s_name ## _from_attrs_for_change(struct s_name *s, \ * Magic: define op number to op name mapping {{{1 * {{{2 */ -static const char *CONCAT_(GENL_MAGIC_FAMILY, _genl_cmd_to_str)(__u8 cmd) +static const char *CONCATENATE(GENL_MAGIC_FAMILY, _genl_cmd_to_str)(__u8 cmd) { switch (cmd) { #undef GENL_op @@ -235,7 +236,7 @@ static const char *CONCAT_(GENL_MAGIC_FAMILY, _genl_cmd_to_str)(__u8 cmd) .cmd = op_name, \ }, -#define ZZZ_genl_ops CONCAT_(GENL_MAGIC_FAMILY, _genl_ops) +#define ZZZ_genl_ops CONCATENATE(GENL_MAGIC_FAMILY, _genl_ops) static struct genl_ops ZZZ_genl_ops[] __read_mostly = { #include GENL_MAGIC_INCLUDE_FILE }; @@ -248,32 +249,32 @@ static struct genl_ops ZZZ_genl_ops[] __read_mostly = { * and provide register/unregister functions. * {{{2 */ -#define ZZZ_genl_family CONCAT_(GENL_MAGIC_FAMILY, _genl_family) +#define ZZZ_genl_family CONCATENATE(GENL_MAGIC_FAMILY, _genl_family) static struct genl_family ZZZ_genl_family; /* * Magic: define multicast groups * Magic: define multicast group registration helper */ -#define ZZZ_genl_mcgrps CONCAT_(GENL_MAGIC_FAMILY, _genl_mcgrps) +#define ZZZ_genl_mcgrps CONCATENATE(GENL_MAGIC_FAMILY, _genl_mcgrps) static const struct genl_multicast_group ZZZ_genl_mcgrps[] = { #undef GENL_mc_group #define GENL_mc_group(group) { .name = #group, }, #include GENL_MAGIC_INCLUDE_FILE }; -enum CONCAT_(GENL_MAGIC_FAMILY, group_ids) { +enum CONCATENATE(GENL_MAGIC_FAMILY, group_ids) { #undef GENL_mc_group -#define GENL_mc_group(group) CONCAT_(GENL_MAGIC_FAMILY, _group_ ## group), +#define GENL_mc_group(group) CONCATENATE(GENL_MAGIC_FAMILY, _group_ ## group), #include GENL_MAGIC_INCLUDE_FILE }; #undef GENL_mc_group #define GENL_mc_group(group) \ -static int CONCAT_(GENL_MAGIC_FAMILY, _genl_multicast_ ## group)( \ +static int CONCATENATE(GENL_MAGIC_FAMILY, _genl_multicast_ ## group)( \ struct sk_buff *skb, gfp_t flags) \ { \ unsigned int group_id = \ - CONCAT_(GENL_MAGIC_FAMILY, _group_ ## group); \ + CONCATENATE(GENL_MAGIC_FAMILY, _group_ ## group); \ return genlmsg_multicast(&ZZZ_genl_family, skb, 0, \ group_id, flags); \ } @@ -289,8 +290,8 @@ static struct genl_family ZZZ_genl_family __ro_after_init = { #ifdef GENL_MAGIC_FAMILY_HDRSZ .hdrsize = NLA_ALIGN(GENL_MAGIC_FAMILY_HDRSZ), #endif - .maxattr = ARRAY_SIZE(CONCAT_(GENL_MAGIC_FAMILY, _tla_nl_policy))-1, - .policy = CONCAT_(GENL_MAGIC_FAMILY, _tla_nl_policy), + .maxattr = ARRAY_SIZE(CONCATENATE(GENL_MAGIC_FAMILY, _tla_nl_policy))-1, + .policy = CONCATENATE(GENL_MAGIC_FAMILY, _tla_nl_policy), .ops = ZZZ_genl_ops, .n_ops = ARRAY_SIZE(ZZZ_genl_ops), .mcgrps = ZZZ_genl_mcgrps, @@ -299,12 +300,12 @@ static struct genl_family ZZZ_genl_family __ro_after_init = { .module = THIS_MODULE, }; -int CONCAT_(GENL_MAGIC_FAMILY, _genl_register)(void) +int CONCATENATE(GENL_MAGIC_FAMILY, _genl_register)(void) { return genl_register_family(&ZZZ_genl_family); } -void CONCAT_(GENL_MAGIC_FAMILY, _genl_unregister)(void) +void CONCATENATE(GENL_MAGIC_FAMILY, _genl_unregister)(void) { genl_unregister_family(&ZZZ_genl_family); } diff --git a/include/linux/genl_magic_struct.h b/include/linux/genl_magic_struct.h index f81d48987528..a419d93789ff 100644 --- a/include/linux/genl_magic_struct.h +++ b/include/linux/genl_magic_struct.h @@ -14,14 +14,12 @@ # error "you need to define GENL_MAGIC_INCLUDE_FILE before inclusion" #endif +#include #include #include -#define CONCAT__(a,b) a ## b -#define CONCAT_(a,b) CONCAT__(a,b) - -extern int CONCAT_(GENL_MAGIC_FAMILY, _genl_register)(void); -extern void CONCAT_(GENL_MAGIC_FAMILY, _genl_unregister)(void); +extern int CONCATENATE(GENL_MAGIC_FAMILY, _genl_register)(void); +extern void CONCATENATE(GENL_MAGIC_FAMILY, _genl_unregister)(void); /* * Extension of genl attribute validation policies {{{2