Revision 5f4fc6d440d77a2cf74fe4ea56955674ac7e35e7 authored by Linus Torvalds on 19 July 2019, 17:06:06 UTC, committed by Linus Torvalds on 19 July 2019, 17:06:06 UTC
Pull networking fixes from David Miller:

 1) Fix AF_XDP cq entry leak, from Ilya Maximets.

 2) Fix handling of PHY power-down on RTL8411B, from Heiner Kallweit.

 3) Add some new PCI IDs to iwlwifi, from Ihab Zhaika.

 4) Fix handling of neigh timers wrt. entries added by userspace, from
    Lorenzo Bianconi.

 5) Various cases of missing of_node_put(), from Nishka Dasgupta.

 6) The new NET_ACT_CT needs to depend upon NF_NAT, from Yue Haibing.

 7) Various RDS layer fixes, from Gerd Rausch.

 8) Fix some more fallout from TCQ_F_CAN_BYPASS generalization, from
    Cong Wang.

 9) Fix FIB source validation checks over loopback, also from Cong Wang.

10) Use promisc for unsupported number of filters, from Justin Chen.

11) Missing sibling route unlink on failure in ipv6, from Ido Schimmel.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (90 commits)
  tcp: fix tcp_set_congestion_control() use from bpf hook
  ag71xx: fix return value check in ag71xx_probe()
  ag71xx: fix error return code in ag71xx_probe()
  usb: qmi_wwan: add D-Link DWM-222 A2 device ID
  bnxt_en: Fix VNIC accounting when enabling aRFS on 57500 chips.
  net: dsa: sja1105: Fix missing unlock on error in sk_buff()
  gve: replace kfree with kvfree
  selftests/bpf: fix test_xdp_noinline on s390
  selftests/bpf: fix "valid read map access into a read-only array 1" on s390
  net/mlx5: Replace kfree with kvfree
  MAINTAINERS: update netsec driver
  ipv6: Unlink sibling route in case of failure
  liquidio: Replace vmalloc + memset with vzalloc
  udp: Fix typo in net/ipv4/udp.c
  net: bcmgenet: use promisc for unsupported filters
  ipv6: rt6_check should return NULL if 'from' is NULL
  tipc: initialize 'validated' field of received packets
  selftests: add a test case for rp_filter
  fib: relax source validation check for loopback packets
  mlxsw: spectrum: Do not process learned records with a dummy FID
  ...
2 parent s 249be85 + 8d650cd
Raw File
atomic64_test.c
// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * Testsuite for atomic64_t functions
 *
 * Copyright © 2010  Luca Barbieri
 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/init.h>
#include <linux/bug.h>
#include <linux/kernel.h>
#include <linux/atomic.h>
#include <linux/module.h>

#ifdef CONFIG_X86
#include <asm/cpufeature.h>	/* for boot_cpu_has below */
#endif

#define TEST(bit, op, c_op, val)				\
do {								\
	atomic##bit##_set(&v, v0);				\
	r = v0;							\
	atomic##bit##_##op(val, &v);				\
	r c_op val;						\
	WARN(atomic##bit##_read(&v) != r, "%Lx != %Lx\n",	\
		(unsigned long long)atomic##bit##_read(&v),	\
		(unsigned long long)r);				\
} while (0)

/*
 * Test for a atomic operation family,
 * @test should be a macro accepting parameters (bit, op, ...)
 */

#define FAMILY_TEST(test, bit, op, args...)	\
do {						\
	test(bit, op, ##args);		\
	test(bit, op##_acquire, ##args);	\
	test(bit, op##_release, ##args);	\
	test(bit, op##_relaxed, ##args);	\
} while (0)

#define TEST_RETURN(bit, op, c_op, val)				\
do {								\
	atomic##bit##_set(&v, v0);				\
	r = v0;							\
	r c_op val;						\
	BUG_ON(atomic##bit##_##op(val, &v) != r);		\
	BUG_ON(atomic##bit##_read(&v) != r);			\
} while (0)

#define TEST_FETCH(bit, op, c_op, val)				\
do {								\
	atomic##bit##_set(&v, v0);				\
	r = v0;							\
	r c_op val;						\
	BUG_ON(atomic##bit##_##op(val, &v) != v0);		\
	BUG_ON(atomic##bit##_read(&v) != r);			\
} while (0)

#define RETURN_FAMILY_TEST(bit, op, c_op, val)			\
do {								\
	FAMILY_TEST(TEST_RETURN, bit, op, c_op, val);		\
} while (0)

#define FETCH_FAMILY_TEST(bit, op, c_op, val)			\
do {								\
	FAMILY_TEST(TEST_FETCH, bit, op, c_op, val);		\
} while (0)

#define TEST_ARGS(bit, op, init, ret, expect, args...)		\
do {								\
	atomic##bit##_set(&v, init);				\
	BUG_ON(atomic##bit##_##op(&v, ##args) != ret);		\
	BUG_ON(atomic##bit##_read(&v) != expect);		\
} while (0)

#define XCHG_FAMILY_TEST(bit, init, new)				\
do {									\
	FAMILY_TEST(TEST_ARGS, bit, xchg, init, init, new, new);	\
} while (0)

#define CMPXCHG_FAMILY_TEST(bit, init, new, wrong)			\
do {									\
	FAMILY_TEST(TEST_ARGS, bit, cmpxchg, 				\
			init, init, new, init, new);			\
	FAMILY_TEST(TEST_ARGS, bit, cmpxchg,				\
			init, init, init, wrong, new);			\
} while (0)

#define INC_RETURN_FAMILY_TEST(bit, i)			\
do {							\
	FAMILY_TEST(TEST_ARGS, bit, inc_return,		\
			i, (i) + one, (i) + one);	\
} while (0)

#define DEC_RETURN_FAMILY_TEST(bit, i)			\
do {							\
	FAMILY_TEST(TEST_ARGS, bit, dec_return,		\
			i, (i) - one, (i) - one);	\
} while (0)

static __init void test_atomic(void)
{
	int v0 = 0xaaa31337;
	int v1 = 0xdeadbeef;
	int onestwos = 0x11112222;
	int one = 1;

	atomic_t v;
	int r;

	TEST(, add, +=, onestwos);
	TEST(, add, +=, -one);
	TEST(, sub, -=, onestwos);
	TEST(, sub, -=, -one);
	TEST(, or, |=, v1);
	TEST(, and, &=, v1);
	TEST(, xor, ^=, v1);
	TEST(, andnot, &= ~, v1);

	RETURN_FAMILY_TEST(, add_return, +=, onestwos);
	RETURN_FAMILY_TEST(, add_return, +=, -one);
	RETURN_FAMILY_TEST(, sub_return, -=, onestwos);
	RETURN_FAMILY_TEST(, sub_return, -=, -one);

	FETCH_FAMILY_TEST(, fetch_add, +=, onestwos);
	FETCH_FAMILY_TEST(, fetch_add, +=, -one);
	FETCH_FAMILY_TEST(, fetch_sub, -=, onestwos);
	FETCH_FAMILY_TEST(, fetch_sub, -=, -one);

	FETCH_FAMILY_TEST(, fetch_or,  |=, v1);
	FETCH_FAMILY_TEST(, fetch_and, &=, v1);
	FETCH_FAMILY_TEST(, fetch_andnot, &= ~, v1);
	FETCH_FAMILY_TEST(, fetch_xor, ^=, v1);

	INC_RETURN_FAMILY_TEST(, v0);
	DEC_RETURN_FAMILY_TEST(, v0);

	XCHG_FAMILY_TEST(, v0, v1);
	CMPXCHG_FAMILY_TEST(, v0, v1, onestwos);

}

#define INIT(c) do { atomic64_set(&v, c); r = c; } while (0)
static __init void test_atomic64(void)
{
	long long v0 = 0xaaa31337c001d00dLL;
	long long v1 = 0xdeadbeefdeafcafeLL;
	long long v2 = 0xfaceabadf00df001LL;
	long long v3 = 0x8000000000000000LL;
	long long onestwos = 0x1111111122222222LL;
	long long one = 1LL;
	int r_int;

	atomic64_t v = ATOMIC64_INIT(v0);
	long long r = v0;
	BUG_ON(v.counter != r);

	atomic64_set(&v, v1);
	r = v1;
	BUG_ON(v.counter != r);
	BUG_ON(atomic64_read(&v) != r);

	TEST(64, add, +=, onestwos);
	TEST(64, add, +=, -one);
	TEST(64, sub, -=, onestwos);
	TEST(64, sub, -=, -one);
	TEST(64, or, |=, v1);
	TEST(64, and, &=, v1);
	TEST(64, xor, ^=, v1);
	TEST(64, andnot, &= ~, v1);

	RETURN_FAMILY_TEST(64, add_return, +=, onestwos);
	RETURN_FAMILY_TEST(64, add_return, +=, -one);
	RETURN_FAMILY_TEST(64, sub_return, -=, onestwos);
	RETURN_FAMILY_TEST(64, sub_return, -=, -one);

	FETCH_FAMILY_TEST(64, fetch_add, +=, onestwos);
	FETCH_FAMILY_TEST(64, fetch_add, +=, -one);
	FETCH_FAMILY_TEST(64, fetch_sub, -=, onestwos);
	FETCH_FAMILY_TEST(64, fetch_sub, -=, -one);

	FETCH_FAMILY_TEST(64, fetch_or,  |=, v1);
	FETCH_FAMILY_TEST(64, fetch_and, &=, v1);
	FETCH_FAMILY_TEST(64, fetch_andnot, &= ~, v1);
	FETCH_FAMILY_TEST(64, fetch_xor, ^=, v1);

	INIT(v0);
	atomic64_inc(&v);
	r += one;
	BUG_ON(v.counter != r);

	INIT(v0);
	atomic64_dec(&v);
	r -= one;
	BUG_ON(v.counter != r);

	INC_RETURN_FAMILY_TEST(64, v0);
	DEC_RETURN_FAMILY_TEST(64, v0);

	XCHG_FAMILY_TEST(64, v0, v1);
	CMPXCHG_FAMILY_TEST(64, v0, v1, v2);

	INIT(v0);
	BUG_ON(atomic64_add_unless(&v, one, v0));
	BUG_ON(v.counter != r);

	INIT(v0);
	BUG_ON(!atomic64_add_unless(&v, one, v1));
	r += one;
	BUG_ON(v.counter != r);

	INIT(onestwos);
	BUG_ON(atomic64_dec_if_positive(&v) != (onestwos - 1));
	r -= one;
	BUG_ON(v.counter != r);

	INIT(0);
	BUG_ON(atomic64_dec_if_positive(&v) != -one);
	BUG_ON(v.counter != r);

	INIT(-one);
	BUG_ON(atomic64_dec_if_positive(&v) != (-one - one));
	BUG_ON(v.counter != r);

	INIT(onestwos);
	BUG_ON(!atomic64_inc_not_zero(&v));
	r += one;
	BUG_ON(v.counter != r);

	INIT(0);
	BUG_ON(atomic64_inc_not_zero(&v));
	BUG_ON(v.counter != r);

	INIT(-one);
	BUG_ON(!atomic64_inc_not_zero(&v));
	r += one;
	BUG_ON(v.counter != r);

	/* Confirm the return value fits in an int, even if the value doesn't */
	INIT(v3);
	r_int = atomic64_inc_not_zero(&v);
	BUG_ON(!r_int);
}

static __init int test_atomics_init(void)
{
	test_atomic();
	test_atomic64();

#ifdef CONFIG_X86
	pr_info("passed for %s platform %s CX8 and %s SSE\n",
#ifdef CONFIG_X86_64
		"x86-64",
#elif defined(CONFIG_X86_CMPXCHG64)
		"i586+",
#else
		"i386+",
#endif
	       boot_cpu_has(X86_FEATURE_CX8) ? "with" : "without",
	       boot_cpu_has(X86_FEATURE_XMM) ? "with" : "without");
#else
	pr_info("passed\n");
#endif

	return 0;
}

static __exit void test_atomics_exit(void) {}

module_init(test_atomics_init);
module_exit(test_atomics_exit);

MODULE_LICENSE("GPL");
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