From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 930333F99ED for ; Fri, 27 Mar 2026 17:32:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774632746; cv=none; b=gkpA8hkPVJo3M4kzT1v/bdgOMpUir36zdYR3d7SZ5ShXcJ1aWAJTS6KYRnr3eFFqVX6FSCzWP4J3bKFYHCj70EXADqLPA0p/vjRtnxcc3s3S9VZsjt39Dhknu2nbhC8HV86ysbqMJw+GvgUyQ3PwnN5+jM6AzUQXDkmYFC9uYNI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774632746; c=relaxed/simple; bh=bboqRUo+YbyCqvDqcDVXhwfL1Knhubiu78fJpgjPGyQ=; h=Date:To:From:Subject:Message-Id; b=VQJ8HQzLxmvO3LowUJoMsgiycC7Ppk9OC26BZ4UIhuXTH3AHRX/IRNlX6bKjV1h/ojBdSeMz8Tn4ZD6lbE/4GcpU4fJ5b8JkioCY4rrqcwDAO7iEewtT2sdXDZD+eWXR4vRErUQ4hhUsNhjGvLIZ+WvX8VZ1jQkA2IvZ4Ha4jkY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=bStBByd4; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="bStBByd4" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 15B77C19423; Fri, 27 Mar 2026 17:32:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1774632746; bh=bboqRUo+YbyCqvDqcDVXhwfL1Knhubiu78fJpgjPGyQ=; h=Date:To:From:Subject:From; b=bStBByd4kGFZxDWLNGEp+8hs5nWf2aqH1aGXvGNJLBRD3JtV8VpNn3g8BpGX/ueoy xT0rcFj4PH0dg3E6LvhjPleCLY9iazlmZkqsWNhe9Ay/wU0jsOb3MY4itarepiehE3 yQq1U0ZuL43iyvQr1Oo0VG292gj1KzstKPgfK9yA= Date: Fri, 27 Mar 2026 10:32:25 -0700 To: mm-commits@vger.kernel.org,hch@lst.de,akpm@linux-foundation.org From: Andrew Morton Subject: [to-be-updated] xor-use-static_call-for-xor_gen.patch removed from -mm tree Message-Id: <20260327173226.15B77C19423@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: xor: use static_call for xor_gen has been removed from the -mm tree. Its filename was xor-use-static_call-for-xor_gen.patch This patch was dropped because an updated version will be issued ------------------------------------------------------ From: Christoph Hellwig Subject: xor: use static_call for xor_gen Date: Tue, 24 Mar 2026 07:22:01 +0100 Avoid the indirect call for xor_generation by using a static_call. Link: https://lkml.kernel.org/r/20260324062211.3216301-26-hch@lst.de Signed-off-by: Christoph Hellwig Cc: Albert Ou Cc: Alexander Gordeev Cc: Alexandre Ghiti Cc: Andreas Larsson Cc: Anton Ivanov Cc: Ard Biesheuvel Cc: Arnd Bergmann Cc: "Borislav Petkov (AMD)" Cc: Catalin Marinas Cc: Chris Mason Cc: Christian Borntraeger Cc: Dan Williams Cc: David S. Miller Cc: David Sterba Cc: Heiko Carstens Cc: Herbert Xu Cc: "H. Peter Anvin" Cc: Huacai Chen Cc: Ingo Molnar Cc: Jason A. Donenfeld Cc: Johannes Berg Cc: Li Nan Cc: Madhavan Srinivasan Cc: Magnus Lindholm Cc: Matt Turner Cc: Michael Ellerman Cc: Nicholas Piggin Cc: Palmer Dabbelt Cc: Richard Henderson Cc: Richard Weinberger Cc: Russell King Cc: Song Liu Cc: Sven Schnelle Cc: Ted Ts'o Cc: Vasily Gorbik Cc: WANG Xuerui Cc: Will Deacon Signed-off-by: Andrew Morton --- lib/raid/xor/xor-core.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) --- a/lib/raid/xor/xor-core.c~xor-use-static_call-for-xor_gen +++ a/lib/raid/xor/xor-core.c @@ -11,10 +11,10 @@ #include #include #include +#include #include "xor_impl.h" -/* The xor routine to use. */ -static struct xor_block_template *active_template; +DEFINE_STATIC_CALL_NULL(xor_gen_impl, *xor_block_8regs.xor_gen); /** * xor_gen - generate RAID-style XOR information @@ -36,13 +36,13 @@ void xor_gen(void *dest, void **srcs, un lockdep_assert_preemption_enabled(); WARN_ON_ONCE(bytes & 511); - active_template->xor_gen(dest, srcs, src_cnt, bytes); + static_call(xor_gen_impl)(dest, srcs, src_cnt, bytes); } EXPORT_SYMBOL(xor_gen); /* Set of all registered templates. */ static struct xor_block_template *__initdata template_list; -static bool __initdata xor_forced = false; +static struct xor_block_template *forced_template; /** * xor_register - register a XOR template @@ -68,7 +68,7 @@ void __init xor_register(struct xor_bloc */ void __init xor_force(struct xor_block_template *tmpl) { - active_template = tmpl; + forced_template = tmpl; } #define BENCH_SIZE 4096 @@ -110,7 +110,7 @@ static int __init calibrate_xor_blocks(v void *b1, *b2; struct xor_block_template *f, *fastest; - if (xor_forced) + if (forced_template) return 0; b1 = (void *) __get_free_pages(GFP_KERNEL, 2); @@ -127,7 +127,7 @@ static int __init calibrate_xor_blocks(v if (f->speed > fastest->speed) fastest = f; } - active_template = fastest; + static_call_update(xor_gen_impl, fastest->xor_gen); pr_info("xor: using function: %s (%d MB/sec)\n", fastest->name, fastest->speed); @@ -155,10 +155,10 @@ static int __init xor_init(void) * If this arch/cpu has a short-circuited selection, don't loop through * all the possible functions, just use the best one. */ - if (active_template) { + if (forced_template) { pr_info("xor: automatically using best checksumming function %-10s\n", - active_template->name); - xor_forced = true; + forced_template->name); + static_call_update(xor_gen_impl, forced_template->xor_gen); return 0; } @@ -169,7 +169,7 @@ static int __init xor_init(void) * Pick the first template as the temporary default until calibration * happens. */ - active_template = template_list; + static_call_update(xor_gen_impl, template_list->xor_gen); return 0; #endif } _ Patches currently in -mm which might be from hch@lst.de are xor-add-a-kunit-test-case.patch