diff options
Diffstat (limited to 'drivers/misc/ibmasm/command.c')
-rw-r--r-- | drivers/misc/ibmasm/command.c | 40 |
1 files changed, 17 insertions, 23 deletions
diff --git a/drivers/misc/ibmasm/command.c b/drivers/misc/ibmasm/command.c index 07a085ccbd5b..7d56f45dee19 100644 --- a/drivers/misc/ibmasm/command.c +++ b/drivers/misc/ibmasm/command.c @@ -18,19 +18,16 @@ * * Copyright (C) IBM Corporation, 2004 * - * Author: Max Asböck <amax@us.ibm.com> + * Author: Max Asböck <amax@us.ibm.com> * */ +#include <linux/sched.h> +#include <linux/slab.h> #include "ibmasm.h" #include "lowlevel.h" static void exec_next_command(struct service_processor *sp); -static void free_command(struct kobject *kobj); - -static struct kobj_type ibmasm_cmd_kobj_type = { - .release = free_command, -}; static atomic_t command_count = ATOMIC_INIT(0); @@ -41,22 +38,19 @@ struct command *ibmasm_new_command(struct service_processor *sp, size_t buffer_s if (buffer_size > IBMASM_CMD_MAX_BUFFER_SIZE) return NULL; - cmd = kmalloc(sizeof(struct command), GFP_KERNEL); + cmd = kzalloc(sizeof(struct command), GFP_KERNEL); if (cmd == NULL) return NULL; - memset(cmd, 0, sizeof(*cmd)); - cmd->buffer = kmalloc(buffer_size, GFP_KERNEL); + cmd->buffer = kzalloc(buffer_size, GFP_KERNEL); if (cmd->buffer == NULL) { kfree(cmd); return NULL; } - memset(cmd->buffer, 0, buffer_size); cmd->buffer_size = buffer_size; - kobject_init(&cmd->kobj); - cmd->kobj.ktype = &ibmasm_cmd_kobj_type; + kref_init(&cmd->kref); cmd->lock = &sp->lock; cmd->status = IBMASM_CMD_PENDING; @@ -69,10 +63,10 @@ struct command *ibmasm_new_command(struct service_processor *sp, size_t buffer_s return cmd; } -static void free_command(struct kobject *kobj) +void ibmasm_free_command(struct kref *kref) { - struct command *cmd = to_command(kobj); - + struct command *cmd = to_command(kref); + list_del(&cmd->queue_node); atomic_dec(&command_count); dbg("command count: %d\n", atomic_read(&command_count)); @@ -104,7 +98,7 @@ static inline void do_exec_command(struct service_processor *sp) { char tsbuf[32]; - dbg("%s:%d at %s\n", __FUNCTION__, __LINE__, get_timestamp(tsbuf)); + dbg("%s:%d at %s\n", __func__, __LINE__, get_timestamp(tsbuf)); if (ibmasm_send_i2o_message(sp)) { sp->current_command->status = IBMASM_CMD_FAILED; @@ -113,21 +107,21 @@ static inline void do_exec_command(struct service_processor *sp) exec_next_command(sp); } } - + /** * exec_command * send a command to a service processor * Commands are executed sequentially. One command (sp->current_command) * is sent to the service processor. Once the interrupt handler gets a * message of type command_response, the message is copied into - * the current commands buffer, + * the current commands buffer, */ void ibmasm_exec_command(struct service_processor *sp, struct command *cmd) { unsigned long flags; char tsbuf[32]; - dbg("%s:%d at %s\n", __FUNCTION__, __LINE__, get_timestamp(tsbuf)); + dbg("%s:%d at %s\n", __func__, __LINE__, get_timestamp(tsbuf)); spin_lock_irqsave(&sp->lock, flags); @@ -147,7 +141,7 @@ static void exec_next_command(struct service_processor *sp) unsigned long flags; char tsbuf[32]; - dbg("%s:%d at %s\n", __FUNCTION__, __LINE__, get_timestamp(tsbuf)); + dbg("%s:%d at %s\n", __func__, __LINE__, get_timestamp(tsbuf)); spin_lock_irqsave(&sp->lock, flags); sp->current_command = dequeue_command(sp); @@ -160,7 +154,7 @@ static void exec_next_command(struct service_processor *sp) } } -/** +/** * Sleep until a command has failed or a response has been received * and the command status been updated by the interrupt handler. * (see receive_response). @@ -182,8 +176,8 @@ void ibmasm_receive_command_response(struct service_processor *sp, void *respons { struct command *cmd = sp->current_command; - if (!sp->current_command) - return; + if (!sp->current_command) + return; memcpy_fromio(cmd->buffer, response, min(size, cmd->buffer_size)); cmd->status = IBMASM_CMD_COMPLETE; |