diff mbox series

[v2,6/6] lib: logic_pio: Enforce LOGIC_PIO_INDIRECT region ops are set at registration

Message ID 1561386908-31884-7-git-send-email-john.garry@huawei.com (mailing list archive)
State New, archived
Delegated to: Bjorn Helgaas
Headers show
Series Fixes for HiSilicon LPC driver and logical PIO code | expand

Commit Message

John Garry June 24, 2019, 2:35 p.m. UTC 
Since the only LOGIC_PIO_INDIRECT host (hisi-lpc) now sets the ops prior
to registration, enforce this check at registration instead of in the IO
port accessors to simplify and marginally optimise the code.

A slight misalignment is also tidied.

Suggested-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: John Garry <john.garry@huawei.com>
---
 lib/logic_pio.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/lib/logic_pio.c b/lib/logic_pio.c
index 905027574e5d..52831a85293a 100644
--- a/lib/logic_pio.c
+++ b/lib/logic_pio.c
@@ -39,7 +39,8 @@  int logic_pio_register_range(struct logic_pio_hwaddr *new_range)
 	resource_size_t iio_sz = MMIO_UPPER_LIMIT;
 	int ret = 0;
 
-	if (!new_range || !new_range->fwnode || !new_range->size)
+	if (!new_range || !new_range->fwnode || !new_range->size ||
+	    (new_range->flags == LOGIC_PIO_INDIRECT && !new_range->ops))
 		return -EINVAL;
 
 	start = new_range->hw_start;
@@ -237,7 +238,7 @@  type logic_in##bw(unsigned long addr)					\
 	} else if (addr >= MMIO_UPPER_LIMIT && addr < IO_SPACE_LIMIT) { \
 		struct logic_pio_hwaddr *entry = find_io_range(addr);	\
 									\
-		if (entry && entry->ops)				\
+		if (entry)						\
 			ret = entry->ops->in(entry->hostdata,		\
 					addr, sizeof(type));		\
 		else							\
@@ -253,7 +254,7 @@  void logic_out##bw(type value, unsigned long addr)			\
 	} else if (addr >= MMIO_UPPER_LIMIT && addr < IO_SPACE_LIMIT) {	\
 		struct logic_pio_hwaddr *entry = find_io_range(addr);	\
 									\
-		if (entry && entry->ops)				\
+		if (entry)						\
 			entry->ops->out(entry->hostdata,		\
 					addr, value, sizeof(type));	\
 		else							\
@@ -261,7 +262,7 @@  void logic_out##bw(type value, unsigned long addr)			\
 	}								\
 }									\
 									\
-void logic_ins##bw(unsigned long addr, void *buffer,		\
+void logic_ins##bw(unsigned long addr, void *buffer,			\
 		   unsigned int count)					\
 {									\
 	if (addr < MMIO_UPPER_LIMIT) {					\
@@ -269,7 +270,7 @@  void logic_ins##bw(unsigned long addr, void *buffer,		\
 	} else if (addr >= MMIO_UPPER_LIMIT && addr < IO_SPACE_LIMIT) {	\
 		struct logic_pio_hwaddr *entry = find_io_range(addr);	\
 									\
-		if (entry && entry->ops)				\
+		if (entry)						\
 			entry->ops->ins(entry->hostdata,		\
 				addr, buffer, sizeof(type), count);	\
 		else							\
@@ -286,7 +287,7 @@  void logic_outs##bw(unsigned long addr, const void *buffer,		\
 	} else if (addr >= MMIO_UPPER_LIMIT && addr < IO_SPACE_LIMIT) {	\
 		struct logic_pio_hwaddr *entry = find_io_range(addr);	\
 									\
-		if (entry && entry->ops)				\
+		if (entry)						\
 			entry->ops->outs(entry->hostdata,		\
 				addr, buffer, sizeof(type), count);	\
 		else							\