[PATCH -v3 00/23] rename random32 to prandom

[PATCH -v3 00/23] rename random32 to prandom

[Akinobu Mita]

Commit 496f2f93b1cc286f5a4f4f9acdc1e5314978683f ("random32: rename random32
to prandom") renamed random32() and srandom32() to prandom_u32() and
prandom_seed() respectively.  Due to the volume of existing random32()
callers, they were preserved as backword compatibility wrapper macros.

This patch series aims for finishing the naming transition and removing
the backword compatibility wrapper macros.

The naming transition is mainly simple substitution work for random32()
and srandom32().  But this patch series also includes minor cleanup
which was found while I was working on the substitution.

* Changes from v2
- ubifs, batman-adv, and mtd patches are merged upstream
- add Acked-by: and Reviewed-by: lines
- add rename for brcm80211

* Changes from v1
- leave all net_random() and net_srandom callers as-is and preserve the
  macro definisions. Because that is a useful indirection.
  Spotted by Neil Horman.
- remove batman-adv fix which has been applied to net
- collect Acked-by:

Akinobu Mita (23):
  raid6test: use prandom_bytes()
  uuid: use prandom_bytes()
  x86: pageattr-test: remove srandom32 call
  x86: rename random32() to prandom_u32()
  lib/: rename random32() to prandom_u32()
  mm/: rename random32() to prandom_u32()
  kernel/: rename random32() to prandom_u32()
  drbd: rename random32() to prandom_u32()
  infiniband: rename random32() to prandom_u32()
  mmc: rename random32() to prandom_u32()
  video/uvesafb: rename random32() to prandom_u32()
  xfs: rename random32() to prandom_u32()
  uwb: rename random32() to prandom_u32()
  lguest: rename random32() to prandom_u32()
  scsi: rename random32() to prandom_u32()
  drivers/net: rename random32() to prandom_u32()
  net/sunrpc: rename random32() to prandom_u32()
  net/sched: rename random32() to prandom_u32()
  net/netfilter: rename random32() to prandom_u32()
  net/core:  rename random32() to prandom_u32()
  net/core: remove duplicate statements by do-while loop
  net: rename random32 to prandom
  remove unused random32() and srandom32()

 arch/x86/mm/pageattr-test.c                   |  5 ++--
 crypto/async_tx/raid6test.c                   |  9 ++----
 drivers/block/drbd/drbd_receiver.c            |  5 ++--
 drivers/infiniband/hw/cxgb3/cxio_resource.c   |  4 +--
 drivers/infiniband/hw/cxgb4/id_table.c        |  4 +--
 drivers/infiniband/hw/mlx4/mad.c              |  2 +-
 drivers/infiniband/ulp/ipoib/ipoib_cm.c       |  2 +-
 drivers/lguest/page_tables.c                  |  2 +-
 drivers/mmc/core/core.c                       |  4 +--
 drivers/net/ethernet/broadcom/cnic.c          |  4 +--
 drivers/net/hamradio/baycom_epp.c             |  2 +-
 drivers/net/hamradio/hdlcdrv.c                |  2 +-
 drivers/net/hamradio/yam.c                    |  2 +-
 drivers/net/wireless/brcm80211/brcmfmac/p2p.c |  2 +-
 drivers/net/wireless/mwifiex/cfg80211.c       |  4 +--
 drivers/scsi/fcoe/fcoe_ctlr.c                 |  4 +--
 drivers/scsi/lpfc/lpfc_hbadisc.c              |  6 ++--
 drivers/scsi/qla2xxx/qla_attr.c               |  7 +++--
 drivers/uwb/rsv.c                             |  4 +--
 drivers/video/uvesafb.c                       |  2 +-
 fs/xfs/xfs_alloc.c                            |  2 +-
 fs/xfs/xfs_error.c                            |  2 +-
 fs/xfs/xfs_ialloc.c                           |  2 +-
 fs/xfs/xfs_log.c                              |  2 +-
 include/linux/net.h                           |  4 +--
 include/linux/random.h                        |  7 -----
 kernel/rcutree.c                              |  2 +-
 kernel/test_kprobes.c                         |  2 +-
 lib/fault-inject.c                            |  2 +-
 lib/list_sort.c                               |  2 +-
 lib/uuid.c                                    |  8 +----
 mm/swapfile.c                                 |  2 +-
 net/core/pktgen.c                             | 42 +++++++++++++--------------
 net/netfilter/nf_conntrack_core.c             |  4 +--
 net/sched/sch_choke.c                         |  2 +-
 net/sunrpc/auth_gss/gss_krb5_wrap.c           |  4 +--
 36 files changed, 74 insertions(+), 91 deletions(-)

-- 
1.8.1.2

[PATCH -v3 01/23] raid6test: use prandom_bytes()

[Akinobu Mita]

Use prandom_bytes() to generate random bytes for test data.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Dan Williams <djbw@fb.com>
Cc: Vinod Koul <vinod.koul@intel.com>
---

No change from v2

 crypto/async_tx/raid6test.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/crypto/async_tx/raid6test.c b/crypto/async_tx/raid6test.c
index aa2b027..4a92bac 100644
--- a/crypto/async_tx/raid6test.c
+++ b/crypto/async_tx/raid6test.c
@@ -46,15 +46,10 @@ static void callback(void *param)
 
 static void makedata(int disks)
 {
-	int i, j;
+	int i;
 
 	for (i = 0; i < disks; i++) {
-		for (j = 0; j < PAGE_SIZE/sizeof(u32); j += sizeof(u32)) {
-			u32 *p = page_address(data[i]) + j;
-
-			*p = random32();
-		}
-
+		prandom_bytes(page_address(data[i]), PAGE_SIZE);
 		dataptrs[i] = data[i];
 	}
 }
-- 
1.8.1.2

[PATCH -v3 02/23] uuid: use prandom_bytes()

[Akinobu Mita]

Use prandom_bytes() to generate 16 bytes of pseudo-random bytes.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Huang Ying <ying.huang@intel.com>
---

No change from v2

 lib/uuid.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/lib/uuid.c b/lib/uuid.c
index 52a6fe6..398821e 100644
--- a/lib/uuid.c
+++ b/lib/uuid.c
@@ -25,13 +25,7 @@
 
 static void __uuid_gen_common(__u8 b[16])
 {
-	int i;
-	u32 r;
-
-	for (i = 0; i < 4; i++) {
-		r = random32();
-		memcpy(b + i * 4, &r, 4);
-	}
+	prandom_bytes(b, 16);
 	/* reversion 0b10 */
 	b[8] = (b[8] & 0x3F) | 0x80;
 }
-- 
1.8.1.2

[PATCH -v3 03/23] x86: pageattr-test: remove srandom32 call

[Akinobu Mita]

pageattr-test calls srandom32() once every test iteration.
But calling srandom32() after late_initcalls is not meaningfull.
Because the random states for random32() is mixed by good random numbers
in late_initcall prandom_reseed().

So this removes the call to srandom32().

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
---

* Change from v2
- add Acked-by: line

 arch/x86/mm/pageattr-test.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
index b008656..8b8c381 100644
--- a/arch/x86/mm/pageattr-test.c
+++ b/arch/x86/mm/pageattr-test.c
@@ -130,7 +130,6 @@ static int pageattr_test(void)
 	}
 
 	failed += print_split(&sa);
-	srandom32(100);
 
 	for (i = 0; i < NTEST; i++) {
 		unsigned long pfn = random32() % max_pfn_mapped;
-- 
1.8.1.2

[PATCH -v3 04/23] x86: rename random32() to prandom_u32()

[Akinobu Mita]

Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
---
* Changes from v2
- add Acked-by: line

 arch/x86/mm/pageattr-test.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
index 8b8c381..9346108 100644
--- a/arch/x86/mm/pageattr-test.c
+++ b/arch/x86/mm/pageattr-test.c
@@ -132,10 +132,10 @@ static int pageattr_test(void)
 	failed += print_split(&sa);
 
 	for (i = 0; i < NTEST; i++) {
-		unsigned long pfn = random32() % max_pfn_mapped;
+		unsigned long pfn = prandom_u32() % max_pfn_mapped;
 
 		addr[i] = (unsigned long)__va(pfn << PAGE_SHIFT);
-		len[i] = random32() % 100;
+		len[i] = prandom_u32() % 100;
 		len[i] = min_t(unsigned long, len[i], max_pfn_mapped - pfn - 1);
 
 		if (len[i] == 0)
-- 
1.8.1.2

[PATCH -v3 05/23] lib/: rename random32() to prandom_u32()

[Akinobu Mita]

Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
---

No change from v2

 lib/fault-inject.c | 2 +-
 lib/list_sort.c    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/fault-inject.c b/lib/fault-inject.c
index f7210ad..c5c7a76 100644
--- a/lib/fault-inject.c
+++ b/lib/fault-inject.c
@@ -122,7 +122,7 @@ bool should_fail(struct fault_attr *attr, ssize_t size)
 			return false;
 	}
 
-	if (attr->probability <= random32() % 100)
+	if (attr->probability <= prandom_u32() % 100)
 		return false;
 
 	if (!fail_stacktrace(attr))
diff --git a/lib/list_sort.c b/lib/list_sort.c
index d7325c6..1183fa7 100644
--- a/lib/list_sort.c
+++ b/lib/list_sort.c
@@ -229,7 +229,7 @@ static int __init list_sort_test(void)
 			goto exit;
 		}
 		 /* force some equivalencies */
-		el->value = random32() % (TEST_LIST_LEN/3);
+		el->value = prandom_u32() % (TEST_LIST_LEN / 3);
 		el->serial = i;
 		el->poison1 = TEST_POISON1;
 		el->poison2 = TEST_POISON2;
-- 
1.8.1.2

[PATCH -v3 06/23] mm/: rename random32() to prandom_u32()

[Akinobu Mita]

Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: linux-mm@kvack.org
---

No change from v2

 mm/swapfile.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/swapfile.c b/mm/swapfile.c
index a1f7772..d417efd 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -2120,7 +2120,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
 	if (p->bdev) {
 		if (blk_queue_nonrot(bdev_get_queue(p->bdev))) {
 			p->flags |= SWP_SOLIDSTATE;
-			p->cluster_next = 1 + (random32() % p->highest_bit);
+			p->cluster_next = 1 + (prandom_u32() % p->highest_bit);
 		}
 		if ((swap_flags & SWAP_FLAG_DISCARD) && discard_swap(p) == 0)
 			p->flags |= SWP_DISCARDABLE;
-- 
1.8.1.2

[PATCH -v3 06/23] mm/: rename random32() to prandom_u32()

[Akinobu Mita]

Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: linux-mm@kvack.org
---

No change from v2

 mm/swapfile.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/swapfile.c b/mm/swapfile.c
index a1f7772..d417efd 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -2120,7 +2120,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags)
 	if (p->bdev) {
 		if (blk_queue_nonrot(bdev_get_queue(p->bdev))) {
 			p->flags |= SWP_SOLIDSTATE;
-			p->cluster_next = 1 + (random32() % p->highest_bit);
+			p->cluster_next = 1 + (prandom_u32() % p->highest_bit);
 		}
 		if ((swap_flags & SWAP_FLAG_DISCARD) && discard_swap(p) == 0)
 			p->flags |= SWP_DISCARDABLE;
-- 
1.8.1.2

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[PATCH -v3 07/23] kernel/: rename random32() to prandom_u32()

[Akinobu Mita]

Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
---

No change from v2

 kernel/rcutree.c      | 2 +-
 kernel/test_kprobes.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 5b8ad82..2f8530b 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -1319,7 +1319,7 @@ static int rcu_gp_init(struct rcu_state *rsp)
 					    rnp->grphi, rnp->qsmask);
 		raw_spin_unlock_irq(&rnp->lock);
 #ifdef CONFIG_PROVE_RCU_DELAY
-		if ((random32() % (rcu_num_nodes * 8)) == 0)
+		if ((prandom_u32() % (rcu_num_nodes * 8)) == 0)
 			schedule_timeout_uninterruptible(2);
 #endif /* #ifdef CONFIG_PROVE_RCU_DELAY */
 		cond_resched();
diff --git a/kernel/test_kprobes.c b/kernel/test_kprobes.c
index f8b11a2..12d6ebb 100644
--- a/kernel/test_kprobes.c
+++ b/kernel/test_kprobes.c
@@ -365,7 +365,7 @@ int init_test_probes(void)
 	target2 = kprobe_target2;
 
 	do {
-		rand1 = random32();
+		rand1 = prandom_u32();
 	} while (rand1 <= div_factor);
 
 	printk(KERN_INFO "Kprobe smoke test started\n");
-- 
1.8.1.2

[PATCH -v3 08/23] drbd: rename random32() to prandom_u32()

[Akinobu Mita]

Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: drbd-dev@lists.linbit.com
Cc: Jens Axboe <axboe@kernel.dk>
---

No change from v2

 drivers/block/drbd/drbd_receiver.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index a9eccfc..83c5ae0 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -757,7 +757,8 @@ static struct socket *drbd_wait_for_connect(struct drbd_tconn *tconn, struct acc
 	rcu_read_unlock();
 
 	timeo = connect_int * HZ;
-	timeo += (random32() & 1) ? timeo / 7 : -timeo / 7; /* 28.5% random jitter */
+	/* 28.5% random jitter */
+	timeo += (prandom_u32() & 1) ? timeo / 7 : -timeo / 7;
 
 	err = wait_for_completion_interruptible_timeout(&ad->door_bell, timeo);
 	if (err <= 0)
@@ -953,7 +954,7 @@ retry:
 				conn_warn(tconn, "Error receiving initial packet\n");
 				sock_release(s);
 randomize:
-				if (random32() & 1)
+				if (prandom_u32() & 1)
 					goto retry;
 			}
 		}
-- 
1.8.1.2

[PATCH -v3 09/23] infiniband: rename random32() to prandom_u32()

[Akinobu Mita]

Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Cc: Roland Dreier <roland@kernel.org>
Cc: Sean Hefty <sean.hefty@intel.com>
Cc: Hal Rosenstock <hal.rosenstock@gmail.com>
Cc: Steve Wise <swise@chelsio.com>
Cc: linux-rdma@vger.kernel.org
---
* Change from v2
- add Reviewed-by: line

 drivers/infiniband/hw/cxgb3/cxio_resource.c | 4 ++--
 drivers/infiniband/hw/cxgb4/id_table.c      | 4 ++--
 drivers/infiniband/hw/mlx4/mad.c            | 2 +-
 drivers/infiniband/ulp/ipoib/ipoib_cm.c     | 2 +-
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/infiniband/hw/cxgb3/cxio_resource.c b/drivers/infiniband/hw/cxgb3/cxio_resource.c
index 31f9201..c40088e 100644
--- a/drivers/infiniband/hw/cxgb3/cxio_resource.c
+++ b/drivers/infiniband/hw/cxgb3/cxio_resource.c
@@ -62,13 +62,13 @@ static int __cxio_init_resource_fifo(struct kfifo *fifo,
 		kfifo_in(fifo, (unsigned char *) &entry, sizeof(u32));
 	if (random) {
 		j = 0;
-		random_bytes = random32();
+		random_bytes = prandom_u32();
 		for (i = 0; i < RANDOM_SIZE; i++)
 			rarray[i] = i + skip_low;
 		for (i = skip_low + RANDOM_SIZE; i < nr - skip_high; i++) {
 			if (j >= RANDOM_SIZE) {
 				j = 0;
-				random_bytes = random32();
+				random_bytes = prandom_u32();
 			}
 			idx = (random_bytes >> (j * 2)) & 0xF;
 			kfifo_in(fifo,
diff --git a/drivers/infiniband/hw/cxgb4/id_table.c b/drivers/infiniband/hw/cxgb4/id_table.c
index f95e5df..0161ae6 100644
--- a/drivers/infiniband/hw/cxgb4/id_table.c
+++ b/drivers/infiniband/hw/cxgb4/id_table.c
@@ -54,7 +54,7 @@ u32 c4iw_id_alloc(struct c4iw_id_table *alloc)
 
 	if (obj < alloc->max) {
 		if (alloc->flags & C4IW_ID_TABLE_F_RANDOM)
-			alloc->last += random32() % RANDOM_SKIP;
+			alloc->last += prandom_u32() % RANDOM_SKIP;
 		else
 			alloc->last = obj + 1;
 		if (alloc->last >= alloc->max)
@@ -88,7 +88,7 @@ int c4iw_id_table_alloc(struct c4iw_id_table *alloc, u32 start, u32 num,
 	alloc->start = start;
 	alloc->flags = flags;
 	if (flags & C4IW_ID_TABLE_F_RANDOM)
-		alloc->last = random32() % RANDOM_SKIP;
+		alloc->last = prandom_u32() % RANDOM_SKIP;
 	else
 		alloc->last = 0;
 	alloc->max  = num;
diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c
index 934792c..4d599ce 100644
--- a/drivers/infiniband/hw/mlx4/mad.c
+++ b/drivers/infiniband/hw/mlx4/mad.c
@@ -93,7 +93,7 @@ static void __propagate_pkey_ev(struct mlx4_ib_dev *dev, int port_num,
 __be64 mlx4_ib_gen_node_guid(void)
 {
 #define NODE_GUID_HI	((u64) (((u64)IB_OPENIB_OUI) << 40))
-	return cpu_to_be64(NODE_GUID_HI | random32());
+	return cpu_to_be64(NODE_GUID_HI | prandom_u32());
 }
 
 __be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx)
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index 67b0c1d..249976c 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -460,7 +460,7 @@ static int ipoib_cm_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *even
 		goto err_qp;
 	}
 
-	psn = random32() & 0xffffff;
+	psn = prandom_u32() & 0xffffff;
 	ret = ipoib_cm_modify_rx_qp(dev, cm_id, p->qp, psn);
 	if (ret)
 		goto err_modify;
-- 
1.8.1.2

Re: [PATCH -v3 09/23] infiniband: rename random32() to prandom_u32()

[Steve Wise]

Reviewed-by: Steve Wise <swise-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>

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Re: [PATCH -v3 09/23] infiniband: rename random32() to prandom_u32()

[Steve Wise]

Reviewed-by: Steve Wise <swise@opengridcomputing.com>

[PATCH -v3 10/23] mmc: rename random32() to prandom_u32()

[Akinobu Mita]

Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Chris Ball <cjb@laptop.org>
Cc: linux-mmc@vger.kernel.org
---

No change from v2

 drivers/mmc/core/core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 08a3cf2..9290bb5 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -120,8 +120,8 @@ static void mmc_should_fail_request(struct mmc_host *host,
 	    !should_fail(&host->fail_mmc_request, data->blksz * data->blocks))
 		return;
 
-	data->error = data_errors[random32() % ARRAY_SIZE(data_errors)];
-	data->bytes_xfered = (random32() % (data->bytes_xfered >> 9)) << 9;
+	data->error = data_errors[prandom_u32() % ARRAY_SIZE(data_errors)];
+	data->bytes_xfered = (prandom_u32() % (data->bytes_xfered >> 9)) << 9;
 }
 
 #else /* CONFIG_FAIL_MMC_REQUEST */
-- 
1.8.1.2

[PATCH -v3 11/23] video/uvesafb: rename random32() to prandom_u32()

[Akinobu Mita]

Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Michal Januszewski <spock@gentoo.org>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: linux-fbdev@vger.kernel.org
---

No change from v2

 drivers/video/uvesafb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c
index b75db01..0d0a43c 100644
--- a/drivers/video/uvesafb.c
+++ b/drivers/video/uvesafb.c
@@ -166,7 +166,7 @@ static int uvesafb_exec(struct uvesafb_ktask *task)
 	memcpy(&m->id, &uvesafb_cn_id, sizeof(m->id));
 	m->seq = seq;
 	m->len = len;
-	m->ack = random32();
+	m->ack = prandom_u32();
 
 	/* uvesafb_task structure */
 	memcpy(m + 1, &task->t, sizeof(task->t));
-- 
1.8.1.2

[PATCH -v3 11/23] video/uvesafb: rename random32() to prandom_u32()

[Akinobu Mita]

Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Michal Januszewski <spock@gentoo.org>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: linux-fbdev@vger.kernel.org
---

No change from v2

 drivers/video/uvesafb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c
index b75db01..0d0a43c 100644
--- a/drivers/video/uvesafb.c
+++ b/drivers/video/uvesafb.c
@@ -166,7 +166,7 @@ static int uvesafb_exec(struct uvesafb_ktask *task)
 	memcpy(&m->id, &uvesafb_cn_id, sizeof(m->id));
 	m->seq = seq;
 	m->len = len;
-	m->ack = random32();
+	m->ack = prandom_u32();
 
 	/* uvesafb_task structure */
 	memcpy(m + 1, &task->t, sizeof(task->t));
-- 
1.8.1.2

[PATCH -v3 12/23] xfs: rename random32() to prandom_u32()

[Akinobu Mita]

Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: <bpm@sgi.com>
Cc: Ben Myers <bpm@sgi.com>
Cc: Alex Elder <elder@kernel.org>
Cc: xfs@oss.sgi.com
---

* Change from v2
- add Acked-by: line

 fs/xfs/xfs_alloc.c  | 2 +-
 fs/xfs/xfs_error.c  | 2 +-
 fs/xfs/xfs_ialloc.c | 2 +-
 fs/xfs/xfs_log.c    | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c
index 0ad2325..a8beb5c 100644
--- a/fs/xfs/xfs_alloc.c
+++ b/fs/xfs/xfs_alloc.c
@@ -842,7 +842,7 @@ xfs_alloc_ag_vextent_near(
 	 */
 	int		dofirst;	/* set to do first algorithm */
 
-	dofirst = random32() & 1;
+	dofirst = prandom_u32() & 1;
 #endif
 
 restart:
diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c
index 6104560..07bf3b9 100644
--- a/fs/xfs/xfs_error.c
+++ b/fs/xfs/xfs_error.c
@@ -66,7 +66,7 @@ xfs_error_test(int error_tag, int *fsidp, char *expression,
 	int i;
 	int64_t fsid;
 
-	if (random32() % randfactor)
+	if (prandom_u32() % randfactor)
 		return 0;
 
 	memcpy(&fsid, fsidp, sizeof(xfs_fsid_t));
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index 515bf71..ba62661 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -369,7 +369,7 @@ xfs_ialloc_ag_alloc(
 	 * number from being easily guessable.
 	 */
 	error = xfs_ialloc_inode_init(args.mp, tp, agno, args.agbno,
-			args.len, random32());
+			args.len, prandom_u32());
 
 	if (error)
 		return error;
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index eec226f..b345a7c 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -3485,7 +3485,7 @@ xlog_ticket_alloc(
 	tic->t_curr_res		= unit_bytes;
 	tic->t_cnt		= cnt;
 	tic->t_ocnt		= cnt;
-	tic->t_tid		= random32();
+	tic->t_tid		= prandom_u32();
 	tic->t_clientid		= client;
 	tic->t_flags		= XLOG_TIC_INITED;
 	tic->t_trans_type	= 0;
-- 
1.8.1.2

[PATCH -v3 12/23] xfs: rename random32() to prandom_u32()

[Akinobu Mita]

Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: <bpm@sgi.com>
Cc: Ben Myers <bpm@sgi.com>
Cc: Alex Elder <elder@kernel.org>
Cc: xfs@oss.sgi.com
---

* Change from v2
- add Acked-by: line

 fs/xfs/xfs_alloc.c  | 2 +-
 fs/xfs/xfs_error.c  | 2 +-
 fs/xfs/xfs_ialloc.c | 2 +-
 fs/xfs/xfs_log.c    | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c
index 0ad2325..a8beb5c 100644
--- a/fs/xfs/xfs_alloc.c
+++ b/fs/xfs/xfs_alloc.c
@@ -842,7 +842,7 @@ xfs_alloc_ag_vextent_near(
 	 */
 	int		dofirst;	/* set to do first algorithm */
 
-	dofirst = random32() & 1;
+	dofirst = prandom_u32() & 1;
 #endif
 
 restart:
diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c
index 6104560..07bf3b9 100644
--- a/fs/xfs/xfs_error.c
+++ b/fs/xfs/xfs_error.c
@@ -66,7 +66,7 @@ xfs_error_test(int error_tag, int *fsidp, char *expression,
 	int i;
 	int64_t fsid;
 
-	if (random32() % randfactor)
+	if (prandom_u32() % randfactor)
 		return 0;
 
 	memcpy(&fsid, fsidp, sizeof(xfs_fsid_t));
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index 515bf71..ba62661 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -369,7 +369,7 @@ xfs_ialloc_ag_alloc(
 	 * number from being easily guessable.
 	 */
 	error = xfs_ialloc_inode_init(args.mp, tp, agno, args.agbno,
-			args.len, random32());
+			args.len, prandom_u32());
 
 	if (error)
 		return error;
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index eec226f..b345a7c 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -3485,7 +3485,7 @@ xlog_ticket_alloc(
 	tic->t_curr_res		= unit_bytes;
 	tic->t_cnt		= cnt;
 	tic->t_ocnt		= cnt;
-	tic->t_tid		= random32();
+	tic->t_tid		= prandom_u32();
 	tic->t_clientid		= client;
 	tic->t_flags		= XLOG_TIC_INITED;
 	tic->t_trans_type	= 0;
-- 
1.8.1.2

_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs

Re: [PATCH -v3 12/23] xfs: rename random32() to prandom_u32()

[Ben Myers]

Akinobu,

On Mon, Mar 04, 2013 at 09:58:20PM +0900, Akinobu Mita wrote:
> Use more preferable function name which implies using a pseudo-random
> number generator.
> 
> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
> Acked-by: <bpm@sgi.com>
> Cc: Ben Myers <bpm@sgi.com>
> Cc: Alex Elder <elder@kernel.org>
> Cc: xfs@oss.sgi.com

Applied this to git://oss.sgi.com/xfs/xfs.git, master branch.

Thanks!
-Ben

Re: [PATCH -v3 12/23] xfs: rename random32() to prandom_u32()

[Ben Myers]

Akinobu,

On Mon, Mar 04, 2013 at 09:58:20PM +0900, Akinobu Mita wrote:
> Use more preferable function name which implies using a pseudo-random
> number generator.
> 
> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
> Acked-by: <bpm@sgi.com>
> Cc: Ben Myers <bpm@sgi.com>
> Cc: Alex Elder <elder@kernel.org>
> Cc: xfs@oss.sgi.com

Applied this to git://oss.sgi.com/xfs/xfs.git, master branch.

Thanks!
-Ben

_______________________________________________
xfs mailing list
xfs@oss.sgi.com
http://oss.sgi.com/mailman/listinfo/xfs

[PATCH -v3 13/23] uwb: rename random32() to prandom_u32()

[Akinobu Mita]

Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: linux-usb@vger.kernel.org
---

No change from v2

 drivers/uwb/rsv.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/uwb/rsv.c b/drivers/uwb/rsv.c
index 0b0d8bc..f4ae05f 100644
--- a/drivers/uwb/rsv.c
+++ b/drivers/uwb/rsv.c
@@ -231,7 +231,7 @@ void uwb_rsv_backoff_win_increment(struct uwb_rc *rc)
 		return;
 
 	bow->window <<= 1;
-	bow->n = random32() & (bow->window - 1);
+	bow->n = prandom_u32() & (bow->window - 1);
 	dev_dbg(dev, "new_window=%d, n=%d\n: ", bow->window, bow->n);
 
 	/* reset the timer associated variables */
@@ -557,7 +557,7 @@ int uwb_rsv_establish(struct uwb_rsv *rsv)
 	if (ret)
 		goto out;
 
-	rsv->tiebreaker = random32() & 1;
+	rsv->tiebreaker = prandom_u32() & 1;
 	/* get available mas bitmap */
 	uwb_drp_available(rc, &available);
 
-- 
1.8.1.2

[PATCH -v3 14/23] lguest: rename random32() to prandom_u32()

[Akinobu Mita]

Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: lguest@lists.ozlabs.org
---

No change from v2

 drivers/lguest/page_tables.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c
index 3b62be16..864baab 100644
--- a/drivers/lguest/page_tables.c
+++ b/drivers/lguest/page_tables.c
@@ -686,7 +686,7 @@ static unsigned int new_pgdir(struct lg_cpu *cpu,
 	 * We pick one entry at random to throw out.  Choosing the Least
 	 * Recently Used might be better, but this is easy.
 	 */
-	next = random32() % ARRAY_SIZE(cpu->lg->pgdirs);
+	next = prandom_u32() % ARRAY_SIZE(cpu->lg->pgdirs);
 	/* If it's never been allocated at all before, try now. */
 	if (!cpu->lg->pgdirs[next].pgdir) {
 		cpu->lg->pgdirs[next].pgdir =
-- 
1.8.1.2

[PATCH -v3 15/23] scsi: rename random32() to prandom_u32()

[Akinobu Mita]

Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: Robert Love <robert.w.love@intel.com>
Cc: devel@open-fcoe.org
Cc: James Smart <james.smart@emulex.com>
Cc: Andrew Vasquez <andrew.vasquez@qlogic.com>
Cc: linux-driver@qlogic.com
Cc: linux-scsi@vger.kernel.org
---

No change from v2

 drivers/scsi/fcoe/fcoe_ctlr.c    | 4 ++--
 drivers/scsi/lpfc/lpfc_hbadisc.c | 6 +++---
 drivers/scsi/qla2xxx/qla_attr.c  | 7 +++++--
 3 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/scsi/fcoe/fcoe_ctlr.c b/drivers/scsi/fcoe/fcoe_ctlr.c
index 08c3bc3..43bb558 100644
--- a/drivers/scsi/fcoe/fcoe_ctlr.c
+++ b/drivers/scsi/fcoe/fcoe_ctlr.c
@@ -2161,7 +2161,7 @@ static void fcoe_ctlr_vn_restart(struct fcoe_ctlr *fip)
 
 	if (fip->probe_tries < FIP_VN_RLIM_COUNT) {
 		fip->probe_tries++;
-		wait = random32() % FIP_VN_PROBE_WAIT;
+		wait = prandom_u32() % FIP_VN_PROBE_WAIT;
 	} else
 		wait = FIP_VN_RLIM_INT;
 	mod_timer(&fip->timer, jiffies + msecs_to_jiffies(wait));
@@ -2794,7 +2794,7 @@ static void fcoe_ctlr_vn_timeout(struct fcoe_ctlr *fip)
 					  fcoe_all_vn2vn, 0);
 			fip->port_ka_time = jiffies +
 				 msecs_to_jiffies(FIP_VN_BEACON_INT +
-					(random32() % FIP_VN_BEACON_FUZZ));
+					(prandom_u32() % FIP_VN_BEACON_FUZZ));
 		}
 		if (time_before(fip->port_ka_time, next_time))
 			next_time = fip->port_ka_time;
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index d7096ad..bfda184 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -1732,7 +1732,7 @@ lpfc_check_pending_fcoe_event(struct lpfc_hba *phba, uint8_t unreg_fcf)
  * use through a sequence of @fcf_cnt eligible FCF records with equal
  * probability. To perform integer manunipulation of random numbers with
  * size unit32_t, the lower 16 bits of the 32-bit random number returned
- * from random32() are taken as the random random number generated.
+ * from prandom_u32() are taken as the random random number generated.
  *
  * Returns true when outcome is for the newly read FCF record should be
  * chosen; otherwise, return false when outcome is for keeping the previously
@@ -1744,7 +1744,7 @@ lpfc_sli4_new_fcf_random_select(struct lpfc_hba *phba, uint32_t fcf_cnt)
 	uint32_t rand_num;
 
 	/* Get 16-bit uniform random number */
-	rand_num = (0xFFFF & random32());
+	rand_num = 0xFFFF & prandom_u32();
 
 	/* Decision with probability 1/fcf_cnt */
 	if ((fcf_cnt * rand_num) < 0xFFFF)
@@ -2380,7 +2380,7 @@ lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
 		phba->fcf.eligible_fcf_cnt = 1;
 		/* Seeding the random number generator for random selection */
 		seed = (uint32_t)(0xFFFFFFFF & jiffies);
-		srandom32(seed);
+		prandom_seed(seed);
 	}
 	spin_unlock_irq(&phba->hbalock);
 	goto read_next_fcf;
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 1d82eef..04bf7b8 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -1940,8 +1940,11 @@ qla24xx_vport_delete(struct fc_vport *fc_vport)
 
 	/* No pending activities shall be there on the vha now */
 	if (ql2xextended_error_logging & ql_dbg_user)
-		msleep(random32()%10);  /* Just to see if something falls on
-					* the net we have placed below */
+		msleep(prandom_u32() % 10);
+		/*
+		 * Just to see if something falls on the net we have placed
+		 * below
+		 */
 
 	BUG_ON(atomic_read(&vha->vref_count));
 
-- 
1.8.1.2

[PATCH -v3 16/23] drivers/net: rename random32() to prandom_u32()

[Akinobu Mita]

Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Thomas Sailer <t.sailer@alumni.ethz.ch>
Acked-by: Bing Zhao <bzhao@marvell.com> [mwifiex]
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Michael Chan <mchan@broadcom.com>
Cc: Thomas Sailer <t.sailer@alumni.ethz.ch>
Cc: Jean-Paul Roubelat <jpr@f6fbb.org>
Cc: Bing Zhao <bzhao@marvell.com>
Cc: Brett Rudley <brudley@broadcom.com>
Cc: Arend van Spriel <arend@broadcom.com>
Cc: "Franky (Zhenhui) Lin" <frankyl@broadcom.com>
Cc: Hante Meuleman <meuleman@broadcom.com>
Cc: brcm80211-dev-list@broadcom.com
Cc: netdev@vger.kernel.org
Cc: linux-hams@vger.kernel.org
Cc: linux-wireless@vger.kernel.org
---
* Changes from v2
- add Acked-by: line
- add rename for brcm80211

 drivers/net/ethernet/broadcom/cnic.c          | 4 ++--
 drivers/net/hamradio/baycom_epp.c             | 2 +-
 drivers/net/hamradio/hdlcdrv.c                | 2 +-
 drivers/net/hamradio/yam.c                    | 2 +-
 drivers/net/wireless/brcm80211/brcmfmac/p2p.c | 2 +-
 drivers/net/wireless/mwifiex/cfg80211.c       | 4 ++--
 6 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/cnic.c b/drivers/net/ethernet/broadcom/cnic.c
index 149a3a0..5abdd48 100644
--- a/drivers/net/ethernet/broadcom/cnic.c
+++ b/drivers/net/ethernet/broadcom/cnic.c
@@ -4085,7 +4085,7 @@ static int cnic_cm_alloc_mem(struct cnic_dev *dev)
 	if (!cp->csk_tbl)
 		return -ENOMEM;
 
-	port_id = random32();
+	port_id = prandom_u32();
 	port_id %= CNIC_LOCAL_PORT_RANGE;
 	if (cnic_init_id_tbl(&cp->csk_port_tbl, CNIC_LOCAL_PORT_RANGE,
 			     CNIC_LOCAL_PORT_MIN, port_id)) {
@@ -4145,7 +4145,7 @@ static int cnic_cm_init_bnx2_hw(struct cnic_dev *dev)
 {
 	u32 seed;
 
-	seed = random32();
+	seed = prandom_u32();
 	cnic_ctx_wr(dev, 45, 0, seed);
 	return 0;
 }
diff --git a/drivers/net/hamradio/baycom_epp.c b/drivers/net/hamradio/baycom_epp.c
index 49b8b58..484f77e 100644
--- a/drivers/net/hamradio/baycom_epp.c
+++ b/drivers/net/hamradio/baycom_epp.c
@@ -449,7 +449,7 @@ static int transmit(struct baycom_state *bc, int cnt, unsigned char stat)
 			if ((--bc->hdlctx.slotcnt) > 0)
 				return 0;
 			bc->hdlctx.slotcnt = bc->ch_params.slottime;
-			if ((random32() % 256) > bc->ch_params.ppersist)
+			if ((prandom_u32() % 256) > bc->ch_params.ppersist)
 				return 0;
 		}
 	}
diff --git a/drivers/net/hamradio/hdlcdrv.c b/drivers/net/hamradio/hdlcdrv.c
index a4a3516..3169252 100644
--- a/drivers/net/hamradio/hdlcdrv.c
+++ b/drivers/net/hamradio/hdlcdrv.c
@@ -389,7 +389,7 @@ void hdlcdrv_arbitrate(struct net_device *dev, struct hdlcdrv_state *s)
 	if ((--s->hdlctx.slotcnt) > 0)
 		return;
 	s->hdlctx.slotcnt = s->ch_params.slottime;
-	if ((random32() % 256) > s->ch_params.ppersist)
+	if ((prandom_u32() % 256) > s->ch_params.ppersist)
 		return;
 	start_tx(dev, s);
 }
diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c
index 4cf8f10..ae3feb0 100644
--- a/drivers/net/hamradio/yam.c
+++ b/drivers/net/hamradio/yam.c
@@ -638,7 +638,7 @@ static void yam_arbitrate(struct net_device *dev)
 	yp->slotcnt = yp->slot / 10;
 
 	/* is random > persist ? */
-	if ((random32() % 256) > yp->pers)
+	if ((prandom_u32() % 256) > yp->pers)
 		return;
 
 	yam_start_tx(dev, yp);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
index 4166e64..bca31a8 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
@@ -1118,7 +1118,7 @@ static void brcmf_p2p_afx_handler(struct work_struct *work)
 	if (afx_hdl->is_listen && afx_hdl->my_listen_chan)
 		/* 100ms ~ 300ms */
 		err = brcmf_p2p_discover_listen(p2p, afx_hdl->my_listen_chan,
-						100 * (1 + (random32() % 3)));
+					100 * (1 + (prandom_u32() % 3)));
 	else
 		err = brcmf_p2p_act_frm_search(p2p, afx_hdl->peer_listen_chan);
 
diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index a44023a..4513707 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -216,7 +216,7 @@ mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 	mwifiex_form_mgmt_frame(skb, buf, len);
 	mwifiex_queue_tx_pkt(priv, skb);
 
-	*cookie = random32() | 1;
+	*cookie = prandom_u32() | 1;
 	cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, GFP_ATOMIC);
 
 	wiphy_dbg(wiphy, "info: management frame transmitted\n");
@@ -271,7 +271,7 @@ mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy,
 					 duration);
 
 	if (!ret) {
-		*cookie = random32() | 1;
+		*cookie = prandom_u32() | 1;
 		priv->roc_cfg.cookie = *cookie;
 		priv->roc_cfg.chan = *chan;
 
-- 
1.8.1.2

Re: [PATCH -v3 16/23] drivers/net: rename random32() to prandom_u32()

[Arend van Spriel]

On 03/04/13 13:58, Akinobu Mita wrote:
> Use more preferable function name which implies using a pseudo-random
> number generator.
>
> Signed-off-by: Akinobu Mita<akinobu.mita@gmail.com>
> Acked-by: Thomas Sailer<t.sailer@alumni.ethz.ch>
> Acked-by: Bing Zhao<bzhao@marvell.com>  [mwifiex]
> Cc: "David S. Miller"<davem@davemloft.net>
> Cc: Michael Chan<mchan@broadcom.com>
> Cc: Thomas Sailer<t.sailer@alumni.ethz.ch>
> Cc: Jean-Paul Roubelat<jpr@f6fbb.org>
> Cc: Bing Zhao<bzhao@marvell.com>
> Cc: Brett Rudley<brudley@broadcom.com>
> Cc: Arend van Spriel<arend@broadcom.com>
> Cc: "Franky (Zhenhui) Lin"<frankyl@broadcom.com>
> Cc: Hante Meuleman<meuleman@broadcom.com>
> Cc: brcm80211-dev-list@broadcom.com
> Cc: netdev@vger.kernel.org
> Cc: linux-hams@vger.kernel.org
> Cc: linux-wireless@vger.kernel.org
> ---
> * Changes from v2
> - add Acked-by: line
> - add rename for brcm80211
>
>   drivers/net/ethernet/broadcom/cnic.c          | 4 ++--
>   drivers/net/hamradio/baycom_epp.c             | 2 +-
>   drivers/net/hamradio/hdlcdrv.c                | 2 +-
>   drivers/net/hamradio/yam.c                    | 2 +-
>   drivers/net/wireless/brcm80211/brcmfmac/p2p.c | 2 +-
>   drivers/net/wireless/mwifiex/cfg80211.c       | 4 ++--
>   6 files changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
> index 4166e64..bca31a8 100644
> --- a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
> +++ b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
> @@ -1118,7 +1118,7 @@ static void brcmf_p2p_afx_handler(struct work_struct *work)
>   	if (afx_hdl->is_listen&&  afx_hdl->my_listen_chan)
>   		/* 100ms ~ 300ms */
>   		err = brcmf_p2p_discover_listen(p2p, afx_hdl->my_listen_chan,
> -						100 * (1 + (random32() % 3)));
> +					100 * (1 + (prandom_u32() % 3)));

Seems like indentation is wrong now. Please retain the alignment.

Regards,
Arend

Re: [PATCH -v3 16/23] drivers/net: rename random32() to prandom_u32()

[Arend van Spriel]

On 03/04/13 13:58, Akinobu Mita wrote:
> Use more preferable function name which implies using a pseudo-random
> number generator.
>
> Signed-off-by: Akinobu Mita<akinobu.mita-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Acked-by: Thomas Sailer<t.sailer-aAjG49QhEdKVRmA6MYkXiA@public.gmane.org>
> Acked-by: Bing Zhao<bzhao-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>  [mwifiex]
> Cc: "David S. Miller"<davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
> Cc: Michael Chan<mchan-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
> Cc: Thomas Sailer<t.sailer-aAjG49QhEdKVRmA6MYkXiA@public.gmane.org>
> Cc: Jean-Paul Roubelat<jpr-3OwtVqItl4LYtjvyW6yDsg@public.gmane.org>
> Cc: Bing Zhao<bzhao-eYqpPyKDWXRBDgjK7y7TUQ@public.gmane.org>
> Cc: Brett Rudley<brudley-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
> Cc: Arend van Spriel<arend-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
> Cc: "Franky (Zhenhui) Lin"<frankyl-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
> Cc: Hante Meuleman<meuleman-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
> Cc: brcm80211-dev-list-dY08KVG/lbpWk0Htik3J/w@public.gmane.org
> Cc: netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-hams-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> Cc: linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
> ---
> * Changes from v2
> - add Acked-by: line
> - add rename for brcm80211
>
>   drivers/net/ethernet/broadcom/cnic.c          | 4 ++--
>   drivers/net/hamradio/baycom_epp.c             | 2 +-
>   drivers/net/hamradio/hdlcdrv.c                | 2 +-
>   drivers/net/hamradio/yam.c                    | 2 +-
>   drivers/net/wireless/brcm80211/brcmfmac/p2p.c | 2 +-
>   drivers/net/wireless/mwifiex/cfg80211.c       | 4 ++--
>   6 files changed, 8 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
> index 4166e64..bca31a8 100644
> --- a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
> +++ b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
> @@ -1118,7 +1118,7 @@ static void brcmf_p2p_afx_handler(struct work_struct *work)
>   	if (afx_hdl->is_listen&&  afx_hdl->my_listen_chan)
>   		/* 100ms ~ 300ms */
>   		err = brcmf_p2p_discover_listen(p2p, afx_hdl->my_listen_chan,
> -						100 * (1 + (random32() % 3)));
> +					100 * (1 + (prandom_u32() % 3)));

Seems like indentation is wrong now. Please retain the alignment.

Regards,
Arend

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Re: [PATCH -v3 16/23] drivers/net: rename random32() to prandom_u32()

[Akinobu Mita]

2013/3/4 Arend van Spriel <arend@broadcom.com>
>>
>> @@ -1118,7 +1118,7 @@ static void brcmf_p2p_afx_handler(struct work_struct *work)
>>         if (afx_hdl->is_listen&&  afx_hdl->my_listen_chan)
>>
>>                 /* 100ms ~ 300ms */
>>                 err = brcmf_p2p_discover_listen(p2p, afx_hdl->my_listen_chan,
>> -                                               100 * (1 + (random32() % 3)));
>> +                                       100 * (1 + (prandom_u32() % 3)));
>
>
> Seems like indentation is wrong now. Please retain the alignment.

OK, I'll fix it.

[PATCH -v3 17/23] net/sunrpc: rename random32() to prandom_u32()

[Akinobu Mita]

Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Cc: linux-nfs@vger.kernel.org
---

No change from v2

 net/sunrpc/auth_gss/gss_krb5_wrap.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/sunrpc/auth_gss/gss_krb5_wrap.c b/net/sunrpc/auth_gss/gss_krb5_wrap.c
index 88edec9..1da52d1 100644
--- a/net/sunrpc/auth_gss/gss_krb5_wrap.c
+++ b/net/sunrpc/auth_gss/gss_krb5_wrap.c
@@ -130,8 +130,8 @@ gss_krb5_make_confounder(char *p, u32 conflen)
 
 	/* initialize to random value */
 	if (i == 0) {
-		i = random32();
-		i = (i << 32) | random32();
+		i = prandom_u32();
+		i = (i << 32) | prandom_u32();
 	}
 
 	switch (conflen) {
-- 
1.8.1.2

Re: [PATCH -v3 17/23] net/sunrpc: rename random32() to prandom_u32()

[Myklebust, Trond]

[-- Attachment #1: Type: text/plain, Size: 1118 bytes --]

On Mon, 2013-03-04 at 21:58 +0900, Akinobu Mita wrote:
> Use more preferable function name which implies using a pseudo-random
> number generator.
> 
> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
> Cc: "J. Bruce Fields" <bfields@fieldses.org>
> Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
> Cc: "David S. Miller" <davem@davemloft.net>
> Cc: netdev@vger.kernel.org
> Cc: linux-nfs@vger.kernel.org
> ---
> 
> No change from v2
> 
>  net/sunrpc/auth_gss/gss_krb5_wrap.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/net/sunrpc/auth_gss/gss_krb5_wrap.c b/net/sunrpc/auth_gss/gss_krb5_wrap.c
> index 88edec9..1da52d1 100644
> --- a/net/sunrpc/auth_gss/gss_krb5_wrap.c
> +++ b/net/sunrpc/auth_gss/gss_krb5_wrap.c
> @@ -130,8 +130,8 @@ gss_krb5_make_confounder(char *p, u32 conflen)
>  
>  	/* initialize to random value */
>  	if (i == 0) {
> -		i = random32();
> -		i = (i << 32) | random32();
> +		i = prandom_u32();
> +		i = (i << 32) | prandom_u32();
>  	}
>  
>  	switch (conflen) {

Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com>

[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 836 bytes --]

[PATCH -v3 18/23] net/sched: rename random32() to prandom_u32()

[Akinobu Mita]

Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Stephen Hemminger <shemminger@vyatta.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netem@lists.linux-foundation.org
Cc: netdev@vger.kernel.org
Cc: netdev@vger.kernel.org
---

No change from v2

 net/sched/sch_choke.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sched/sch_choke.c b/net/sched/sch_choke.c
index cc37dd5..ef53ab8 100644
--- a/net/sched/sch_choke.c
+++ b/net/sched/sch_choke.c
@@ -80,7 +80,7 @@ struct choke_sched_data {
 /* deliver a random number between 0 and N - 1 */
 static u32 random_N(unsigned int N)
 {
-	return reciprocal_divide(random32(), N);
+	return reciprocal_divide(prandom_u32(), N);
 }
 
 /* number of elements in queue including holes */
-- 
1.8.1.2

[PATCH -v3 19/23] net/netfilter: rename random32() to prandom_u32()

[Akinobu Mita]

Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: Patrick McHardy <kaber@trash.net>
Cc: netfilter-devel@vger.kernel.org
Cc: netfilter@vger.kernel.org
Cc: coreteam@netfilter.org
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
---

No change from v2

 net/netfilter/nf_conntrack_core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index c8e001a..f84965a 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -264,7 +264,7 @@ static void death_by_event(unsigned long ul_conntrack)
 	if (nf_conntrack_event(IPCT_DESTROY, ct) < 0) {
 		/* bad luck, let's retry again */
 		ecache->timeout.expires = jiffies +
-			(random32() % net->ct.sysctl_events_retry_timeout);
+			(prandom_u32() % net->ct.sysctl_events_retry_timeout);
 		add_timer(&ecache->timeout);
 		return;
 	}
@@ -283,7 +283,7 @@ void nf_ct_dying_timeout(struct nf_conn *ct)
 	/* set a new timer to retry event delivery */
 	setup_timer(&ecache->timeout, death_by_event, (unsigned long)ct);
 	ecache->timeout.expires = jiffies +
-		(random32() % net->ct.sysctl_events_retry_timeout);
+		(prandom_u32() % net->ct.sysctl_events_retry_timeout);
 	add_timer(&ecache->timeout);
 }
 EXPORT_SYMBOL_GPL(nf_ct_dying_timeout);
-- 
1.8.1.2

[PATCH -v3 20/23] net/core: rename random32() to prandom_u32()

[Akinobu Mita]

Use more preferable function name which implies using a pseudo-random
number generator.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
---

No change from v2

 net/core/pktgen.c | 29 +++++++++++++++--------------
 1 file changed, 15 insertions(+), 14 deletions(-)

diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 6048fc1..4582275 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -2198,7 +2198,7 @@ static inline int f_pick(struct pktgen_dev *pkt_dev)
 				pkt_dev->curfl = 0; /*reset */
 		}
 	} else {
-		flow = random32() % pkt_dev->cflows;
+		flow = prandom_u32() % pkt_dev->cflows;
 		pkt_dev->curfl = flow;
 
 		if (pkt_dev->flows[flow].count > pkt_dev->lflow) {
@@ -2246,7 +2246,7 @@ static void set_cur_queue_map(struct pktgen_dev *pkt_dev)
 	else if (pkt_dev->queue_map_min <= pkt_dev->queue_map_max) {
 		__u16 t;
 		if (pkt_dev->flags & F_QUEUE_MAP_RND) {
-			t = random32() %
+			t = prandom_u32() %
 				(pkt_dev->queue_map_max -
 				 pkt_dev->queue_map_min + 1)
 				+ pkt_dev->queue_map_min;
@@ -2278,7 +2278,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
 		__u32 tmp;
 
 		if (pkt_dev->flags & F_MACSRC_RND)
-			mc = random32() % pkt_dev->src_mac_count;
+			mc = prandom_u32() % pkt_dev->src_mac_count;
 		else {
 			mc = pkt_dev->cur_src_mac_offset++;
 			if (pkt_dev->cur_src_mac_offset >=
@@ -2304,7 +2304,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
 		__u32 tmp;
 
 		if (pkt_dev->flags & F_MACDST_RND)
-			mc = random32() % pkt_dev->dst_mac_count;
+			mc = prandom_u32() % pkt_dev->dst_mac_count;
 
 		else {
 			mc = pkt_dev->cur_dst_mac_offset++;
@@ -2331,21 +2331,21 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
 		for (i = 0; i < pkt_dev->nr_labels; i++)
 			if (pkt_dev->labels[i] & MPLS_STACK_BOTTOM)
 				pkt_dev->labels[i] = MPLS_STACK_BOTTOM |
-					     ((__force __be32)random32() &
+					     ((__force __be32)prandom_u32() &
 						      htonl(0x000fffff));
 	}
 
 	if ((pkt_dev->flags & F_VID_RND) && (pkt_dev->vlan_id != 0xffff)) {
-		pkt_dev->vlan_id = random32() & (4096-1);
+		pkt_dev->vlan_id = prandom_u32() & (4096 - 1);
 	}
 
 	if ((pkt_dev->flags & F_SVID_RND) && (pkt_dev->svlan_id != 0xffff)) {
-		pkt_dev->svlan_id = random32() & (4096 - 1);
+		pkt_dev->svlan_id = prandom_u32() & (4096 - 1);
 	}
 
 	if (pkt_dev->udp_src_min < pkt_dev->udp_src_max) {
 		if (pkt_dev->flags & F_UDPSRC_RND)
-			pkt_dev->cur_udp_src = random32() %
+			pkt_dev->cur_udp_src = prandom_u32() %
 				(pkt_dev->udp_src_max - pkt_dev->udp_src_min)
 				+ pkt_dev->udp_src_min;
 
@@ -2358,7 +2358,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
 
 	if (pkt_dev->udp_dst_min < pkt_dev->udp_dst_max) {
 		if (pkt_dev->flags & F_UDPDST_RND) {
-			pkt_dev->cur_udp_dst = random32() %
+			pkt_dev->cur_udp_dst = prandom_u32() %
 				(pkt_dev->udp_dst_max - pkt_dev->udp_dst_min)
 				+ pkt_dev->udp_dst_min;
 		} else {
@@ -2375,7 +2375,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
 		if (imn < imx) {
 			__u32 t;
 			if (pkt_dev->flags & F_IPSRC_RND)
-				t = random32() % (imx - imn) + imn;
+				t = prandom_u32() % (imx - imn) + imn;
 			else {
 				t = ntohl(pkt_dev->cur_saddr);
 				t++;
@@ -2396,7 +2396,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
 				__be32 s;
 				if (pkt_dev->flags & F_IPDST_RND) {
 
-					t = random32() % (imx - imn) + imn;
+					t = prandom_u32() % (imx - imn) + imn;
 					s = htonl(t);
 
 					while (ipv4_is_loopback(s) ||
@@ -2404,7 +2404,8 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
 					       ipv4_is_lbcast(s) ||
 					       ipv4_is_zeronet(s) ||
 					       ipv4_is_local_multicast(s)) {
-						t = random32() % (imx - imn) + imn;
+						t = prandom_u32() %
+							(imx - imn) + imn;
 						s = htonl(t);
 					}
 					pkt_dev->cur_daddr = s;
@@ -2437,7 +2438,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
 
 			for (i = 0; i < 4; i++) {
 				pkt_dev->cur_in6_daddr.s6_addr32[i] =
-				    (((__force __be32)random32() |
+				    (((__force __be32)prandom_u32() |
 				      pkt_dev->min_in6_daddr.s6_addr32[i]) &
 				     pkt_dev->max_in6_daddr.s6_addr32[i]);
 			}
@@ -2447,7 +2448,7 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
 	if (pkt_dev->min_pkt_size < pkt_dev->max_pkt_size) {
 		__u32 t;
 		if (pkt_dev->flags & F_TXSIZE_RND) {
-			t = random32() %
+			t = prandom_u32() %
 				(pkt_dev->max_pkt_size - pkt_dev->min_pkt_size)
 				+ pkt_dev->min_pkt_size;
 		} else {
-- 
1.8.1.2

[PATCH -v3 21/23] net/core: remove duplicate statements by do-while loop

[Akinobu Mita]

Remove duplicate statements by using do-while loop instead of while loop.

- A;
- while (e) {
+ do {
	A;
- }
+ } while (e);

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
---

No change from v2

 net/core/pktgen.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 4582275..5c21742 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -2396,18 +2396,15 @@ static void mod_cur_headers(struct pktgen_dev *pkt_dev)
 				__be32 s;
 				if (pkt_dev->flags & F_IPDST_RND) {
 
-					t = prandom_u32() % (imx - imn) + imn;
-					s = htonl(t);
-
-					while (ipv4_is_loopback(s) ||
-					       ipv4_is_multicast(s) ||
-					       ipv4_is_lbcast(s) ||
-					       ipv4_is_zeronet(s) ||
-					       ipv4_is_local_multicast(s)) {
+					do {
 						t = prandom_u32() %
 							(imx - imn) + imn;
 						s = htonl(t);
-					}
+					} while (ipv4_is_loopback(s) ||
+						ipv4_is_multicast(s) ||
+						ipv4_is_lbcast(s) ||
+						ipv4_is_zeronet(s) ||
+						ipv4_is_local_multicast(s));
 					pkt_dev->cur_daddr = s;
 				} else {
 					t = ntohl(pkt_dev->cur_daddr);
-- 
1.8.1.2

[PATCH -v3 22/23] net: rename random32 to prandom

[Akinobu Mita]

Commit 496f2f93b1cc286f5a4f4f9acdc1e5314978683f ("random32: rename
random32 to prandom") renamed random32() and srandom32() to prandom_u32()
and prandom_seed() respectively.

net_random() and net_srandom() need to be redefined with prandom_* in
order to finish the naming transition.

While I'm at it, enclose macro argument of net_srandom() with parenthesis.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
---

No change from v2

 include/linux/net.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/net.h b/include/linux/net.h
index aa16731..99c9f0c 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -240,8 +240,8 @@ do {								\
 #define net_dbg_ratelimited(fmt, ...)				\
 	net_ratelimited_function(pr_debug, fmt, ##__VA_ARGS__)
 
-#define net_random()		random32()
-#define net_srandom(seed)	srandom32((__force u32)seed)
+#define net_random()		prandom_u32()
+#define net_srandom(seed)	prandom_seed((__force u32)(seed))
 
 extern int   	     kernel_sendmsg(struct socket *sock, struct msghdr *msg,
 				    struct kvec *vec, size_t num, size_t len);
-- 
1.8.1.2

[PATCH -v3 23/23] remove unused random32() and srandom32()

[Akinobu Mita]

After finishing a naming transition, remove unused backward
compatibility wrapper macros

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: "Theodore Ts'o" <tytso@mit.edu>
---

No change from v2

 include/linux/random.h | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/include/linux/random.h b/include/linux/random.h
index 347ce55..3b9377d 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -29,13 +29,6 @@ u32 prandom_u32(void);
 void prandom_bytes(void *buf, int nbytes);
 void prandom_seed(u32 seed);
 
-/*
- * These macros are preserved for backward compatibility and should be
- * removed as soon as a transition is finished.
- */
-#define random32() prandom_u32()
-#define srandom32(seed) prandom_seed(seed)
-
 u32 prandom_u32_state(struct rnd_state *);
 void prandom_bytes_state(struct rnd_state *state, void *buf, int nbytes);
 
-- 
1.8.1.2