linux-kernel - [tip:x86/cleanups] x86/platform/UV: Replace kmalloc() and memset() with k[cz]alloc() calls

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <tip-2bc217c61685487987c5befd807e10936371643c@git.kernel.org>
Date:   Wed, 16 Jan 2019 04:09:53 -0800
From:   "tip-bot for Gustavo A. R. Silva" <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     nstange@...e.de, mingo@...nel.org, gustavo@...eddedor.com,
        mingo@...hat.com, peterz@...radead.org, colin.king@...onical.com,
        rvarsha016@...il.com, luto@...nel.org, x86@...nel.org,
        linux-kernel@...r.kernel.org, tglx@...utronix.de, bp@...e.de,
        keescook@...omium.org, hpa@...or.com, abanman@....com
Subject: [tip:x86/cleanups] x86/platform/UV: Replace kmalloc() and memset()
 with k[cz]alloc() calls

Commit-ID:  2bc217c61685487987c5befd807e10936371643c
Gitweb:     https://git.kernel.org/tip/2bc217c61685487987c5befd807e10936371643c
Author:     Gustavo A. R. Silva <gustavo@...eddedor.com>
AuthorDate: Tue, 15 Jan 2019 11:37:13 -0600
Committer:  Borislav Petkov <bp@...e.de>
CommitDate: Wed, 16 Jan 2019 13:01:26 +0100

x86/platform/UV: Replace kmalloc() and memset() with k[cz]alloc() calls

Replace kmalloc_node() and memset() with kzalloc_node(), and
kmalloc_array() and memset() with kcalloc().

This code was detected with the help of Coccinelle.

No functional changes.

Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
Signed-off-by: Borislav Petkov <bp@...e.de>
Cc: "H. Peter Anvin" <hpa@...or.com>
Cc: "Peter Zijlstra (Intel)" <peterz@...radead.org>
Cc: Andrew Banman <abanman@....com>
Cc: Andy Lutomirski <luto@...nel.org>
Cc: Colin Ian King <colin.king@...onical.com>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: Kees Cook <keescook@...omium.org>
Cc: Nicolai Stange <nstange@...e.de>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Varsha Rao <rvarsha016@...il.com>
Cc: x86-ml <x86@...nel.org>
Link: https://lkml.kernel.org/r/20190115173713.GA31031@embeddedor
---
 arch/x86/platform/uv/tlb_uv.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/arch/x86/platform/uv/tlb_uv.c b/arch/x86/platform/uv/tlb_uv.c
index a4130b84d1ff..2c53b0f19329 100644
--- a/arch/x86/platform/uv/tlb_uv.c
+++ b/arch/x86/platform/uv/tlb_uv.c
@@ -2010,8 +2010,7 @@ static void make_per_cpu_thp(struct bau_control *smaster)
 	int cpu;
 	size_t hpsz = sizeof(struct hub_and_pnode) * num_possible_cpus();
 
-	smaster->thp = kmalloc_node(hpsz, GFP_KERNEL, smaster->osnode);
-	memset(smaster->thp, 0, hpsz);
+	smaster->thp = kzalloc_node(hpsz, GFP_KERNEL, smaster->osnode);
 	for_each_present_cpu(cpu) {
 		smaster->thp[cpu].pnode = uv_cpu_hub_info(cpu)->pnode;
 		smaster->thp[cpu].uvhub = uv_cpu_hub_info(cpu)->numa_blade_id;
@@ -2135,15 +2134,12 @@ static int __init summarize_uvhub_sockets(int nuvhubs,
 static int __init init_per_cpu(int nuvhubs, int base_part_pnode)
 {
 	unsigned char *uvhub_mask;
-	void *vp;
 	struct uvhub_desc *uvhub_descs;
 
 	if (is_uv3_hub() || is_uv2_hub() || is_uv1_hub())
 		timeout_us = calculate_destination_timeout();
 
-	vp = kmalloc_array(nuvhubs, sizeof(struct uvhub_desc), GFP_KERNEL);
-	uvhub_descs = (struct uvhub_desc *)vp;
-	memset(uvhub_descs, 0, nuvhubs * sizeof(struct uvhub_desc));
+	uvhub_descs = kcalloc(nuvhubs, sizeof(struct uvhub_desc), GFP_KERNEL);
 	uvhub_mask = kzalloc((nuvhubs+7)/8, GFP_KERNEL);
 
 	if (get_cpu_topology(base_part_pnode, uvhub_descs, uvhub_mask))