From d3fe8e38ccc5ad4911691cca8690fe577011cfc0 Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Sat, 2 Feb 2013 15:31:44 +0000 Subject: [PATCH] generic: convert crypto-ocf from kernel_thread to kthread recent kernels have finally stopped exporting kernel_thread, since a deprecation circa 2006. This patch attempts to convert to the newer kernel kthread API, particularly in random.c [juhosg: remove randomproc variable, it is not required after the patch] Signed-off-by: Russell Senior Signed-off-by: Gabor Juhos git-svn-id: svn://svn.openwrt.org/openwrt/trunk@35456 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- target/linux/generic/files/crypto/ocf/random.c | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) diff --git a/target/linux/generic/files/crypto/ocf/random.c b/target/linux/generic/files/crypto/ocf/random.c index a5f2f648c7..9fc070ed42 100644 --- a/target/linux/generic/files/crypto/ocf/random.c +++ b/target/linux/generic/files/crypto/ocf/random.c @@ -49,6 +49,7 @@ #include #include #include +#include #include #ifdef CONFIG_OCF_FIPS @@ -79,9 +80,9 @@ struct random_op { void *arg; }; +static struct task_struct *random_thread; static int random_proc(void *arg); -static pid_t randomproc = (pid_t) -1; static spinlock_t random_lock; /* @@ -141,12 +142,10 @@ crypto_rregister( spin_lock_irqsave(&random_lock, flags); list_add_tail(&rops->random_list, &random_ops); if (!started) { - randomproc = kernel_thread(random_proc, NULL, CLONE_FS|CLONE_FILES); - if (randomproc < 0) { - ret = randomproc; - printk("crypto: crypto_rregister cannot start random thread; " - "error %d", ret); - } else + random_thread = kthread_run(random_proc, NULL, "ocf-random"); + if (IS_ERR(random_thread)) + ret = PTR_ERR(random_thread); + else started = 1; } spin_unlock_irqrestore(&random_lock, flags); @@ -172,7 +171,7 @@ crypto_runregister_all(u_int32_t driverid) spin_lock_irqsave(&random_lock, flags); if (list_empty(&random_ops) && started) - kill_proc(randomproc, SIGKILL, 1); + kthread_stop(random_thread); spin_unlock_irqrestore(&random_lock, flags); return(0); } @@ -203,7 +202,6 @@ random_proc(void *arg) sprintf(current->comm, "ocf-random"); #else daemonize("ocf-random"); - allow_signal(SIGKILL); #endif (void) get_fs(); @@ -306,12 +304,11 @@ random_proc(void *arg) #endif } } - + kfree(buf); bad_alloc: spin_lock_irq(&random_lock); - randomproc = (pid_t) -1; started = 0; spin_unlock_irq(&random_lock); -- 2.11.0