diff mbox series

[v4,6/8] spi: Use new helpers from overflow.h in __spi_alloc_controller()

Message ID 20240228204919.3680786-7-andriy.shevchenko@linux.intel.com (mailing list archive)
State Not Applicable
Headers show
Series iio: core: New macros and making use of them | expand

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Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Guessed tree name to be net-next, async
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 942 this patch: 942
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 2 of 2 maintainers
netdev/build_clang success Errors and warnings before: 958 this patch: 958
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 959 this patch: 959
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 22 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Andy Shevchenko Feb. 28, 2024, 8:41 p.m. UTC 
We have two new helpers struct_size_with_data() and struct_data_pointer()
that we can utilize in __spi_alloc_controller(). Do it so.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/spi/spi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Comments

Mark Brown Feb. 28, 2024, 9 p.m. UTC | #1 
On Wed, Feb 28, 2024 at 10:41:36PM +0200, Andy Shevchenko wrote:
> We have two new helpers struct_size_with_data() and struct_data_pointer()
> that we can utilize in __spi_alloc_controller(). Do it so.

Acked-by: Mark Brown <broonie@kernel.org>
diff mbox series

Patch

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index ba4d3fde2054..de7a23da58c6 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -3089,12 +3089,12 @@  struct spi_controller *__spi_alloc_controller(struct device *dev,
 					      unsigned int size, bool slave)
 {
 	struct spi_controller	*ctlr;
-	size_t ctlr_size = ALIGN(sizeof(*ctlr), dma_get_cache_alignment());
+	int align = dma_get_cache_alignment();
 
 	if (!dev)
 		return NULL;
 
-	ctlr = kzalloc(size + ctlr_size, GFP_KERNEL);
+	ctlr = kzalloc(struct_size_with_data(ctlr, align, size), GFP_KERNEL);
 	if (!ctlr)
 		return NULL;
 
@@ -3114,7 +3114,7 @@  struct spi_controller *__spi_alloc_controller(struct device *dev,
 		ctlr->dev.class = &spi_master_class;
 	ctlr->dev.parent = dev;
 	pm_suspend_ignore_children(&ctlr->dev, true);
-	spi_controller_set_devdata(ctlr, (void *)ctlr + ctlr_size);
+	spi_controller_set_devdata(ctlr, struct_data_pointer(ctlr, align));
 
 	return ctlr;
 }