[v2] powerpc/ipic: Remove unused ipic_set_priority()

Message ID 20181206065859.28244-1-mpe@ellerman.id.au
State Under Review
Headers show
Series
  • [v2] powerpc/ipic: Remove unused ipic_set_priority()
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Context Check Description
snowpatch_ozlabs/checkpatch success total: 0 errors, 0 warnings, 0 checks, 41 lines checked
snowpatch_ozlabs/build-pmac32 success build succeded & removed 0 sparse warning(s)
snowpatch_ozlabs/build-ppc64e success build succeded & removed 0 sparse warning(s)
snowpatch_ozlabs/build-ppc64be success build succeded & removed 0 sparse warning(s)
snowpatch_ozlabs/build-ppc64le success build succeded & removed 0 sparse warning(s)
snowpatch_ozlabs/apply_patch success next/apply_patch Successfully applied

Commit Message

Michael Ellerman Dec. 6, 2018, 6:58 a.m.
ipic_set_priority() has been unused since 2006 when the last usage was
removed in commit b9f0f1bb2bca ("[POWERPC] Adapt ipic driver to new
host_ops interface, add set_irq_type to set IRQ sense").

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
 arch/powerpc/include/asm/ipic.h |  1 -
 arch/powerpc/sysdev/ipic.c      | 28 ----------------------------
 2 files changed, 29 deletions(-)

v2: Also remove the declaration, as noticed by Thiago.

Patch

diff --git a/arch/powerpc/include/asm/ipic.h b/arch/powerpc/include/asm/ipic.h
index fb59829983b8..3dbd47f2bffe 100644
--- a/arch/powerpc/include/asm/ipic.h
+++ b/arch/powerpc/include/asm/ipic.h
@@ -69,7 +69,6 @@  enum ipic_mcp_irq {
 	IPIC_MCP_MU   = 7,
 };
 
-extern int ipic_set_priority(unsigned int irq, unsigned int priority);
 extern void ipic_set_highest_priority(unsigned int irq);
 extern void ipic_set_default_priority(void);
 extern void ipic_enable_mcp(enum ipic_mcp_irq mcp_irq);
diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c
index 6300123ce965..8030a0f55e96 100644
--- a/arch/powerpc/sysdev/ipic.c
+++ b/arch/powerpc/sysdev/ipic.c
@@ -771,34 +771,6 @@  struct ipic * __init ipic_init(struct device_node *node, unsigned int flags)
 	return ipic;
 }
 
-int ipic_set_priority(unsigned int virq, unsigned int priority)
-{
-	struct ipic *ipic = ipic_from_irq(virq);
-	unsigned int src = virq_to_hw(virq);
-	u32 temp;
-
-	if (priority > 7)
-		return -EINVAL;
-	if (src > 127)
-		return -EINVAL;
-	if (ipic_info[src].prio == 0)
-		return -EINVAL;
-
-	temp = ipic_read(ipic->regs, ipic_info[src].prio);
-
-	if (priority < 4) {
-		temp &= ~(0x7 << (20 + (3 - priority) * 3));
-		temp |= ipic_info[src].prio_mask << (20 + (3 - priority) * 3);
-	} else {
-		temp &= ~(0x7 << (4 + (7 - priority) * 3));
-		temp |= ipic_info[src].prio_mask << (4 + (7 - priority) * 3);
-	}
-
-	ipic_write(ipic->regs, ipic_info[src].prio, temp);
-
-	return 0;
-}
-
 void ipic_set_highest_priority(unsigned int virq)
 {
 	struct ipic *ipic = ipic_from_irq(virq);