Messages in this thread Patch in this message | | | Date | Fri, 10 Jun 2016 12:46:30 -0700 | From | tip-bot for Weongyo Jeong <> | Subject | [tip:irq/core] genirq: Remove unnecessary memset() calls |
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Commit-ID: ff5b706f5189fe8d2a6fd576b491b769ec1d29d3 Gitweb: http://git.kernel.org/tip/ff5b706f5189fe8d2a6fd576b491b769ec1d29d3 Author: Weongyo Jeong <weongyo.linux@gmail.com> AuthorDate: Thu, 31 Mar 2016 12:15:03 -0700 Committer: Thomas Gleixner <tglx@linutronix.de> CommitDate: Fri, 10 Jun 2016 17:07:50 +0200
genirq: Remove unnecessary memset() calls
sprintf() and snprintf() implementation of kernel guarantees that its result is terminated with null byte if size is larger than 0. So we don't need to call memset() at all.
Signed-off-by: Weongyo Jeong <weongyo.linux@gmail.com> Link: http://lkml.kernel.org/r/1459451703-5744-1-git-send-email-weongyo.linux@gmail.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
--- kernel/irq/proc.c | 3 --- 1 file changed, 3 deletions(-)
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c index 50a8f28..f30425d 100644 --- a/kernel/irq/proc.c +++ b/kernel/irq/proc.c @@ -311,7 +311,6 @@ void register_handler_proc(unsigned int irq, struct irqaction *action) !name_unique(irq, action)) return; - memset(name, 0, MAX_NAMELEN); snprintf(name, MAX_NAMELEN, "%s", action->name); /* create /proc/irq/1234/handler/ */ @@ -340,7 +339,6 @@ void register_irq_proc(unsigned int irq, struct irq_desc *desc) if (desc->dir) goto out_unlock; - memset(name, 0, MAX_NAMELEN); sprintf(name, "%d", irq); /* create /proc/irq/1234 */ @@ -386,7 +384,6 @@ void unregister_irq_proc(unsigned int irq, struct irq_desc *desc) #endif remove_proc_entry("spurious", desc->dir); - memset(name, 0, MAX_NAMELEN); sprintf(name, "%u", irq); remove_proc_entry(name, root_irq_dir); }
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