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d62ecd6c07
Refresh patches 6.12 for airoha and econet Fixes:122135b964("airoha: an7581: add support for kernel 6.12") Fixes:73d0f92460("kernel: Add new platform EcoNet MIPS") Signed-off-by: Leo Barsky <leobrsky@proton.me> Link: https://github.com/openwrt/openwrt/pull/20073 Signed-off-by: Robert Marko <robimarko@gmail.com>
74 lines
2.7 KiB
Diff
74 lines
2.7 KiB
Diff
From 9fb6fef0fb49124291837af1da5028f79d53f98e Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= <ilpo.jarvinen@linux.intel.com>
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Date: Fri, 14 Jun 2024 13:06:03 +0300
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Subject: [PATCH] resource: Add resource set range and size helpers
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Setting the end address for a resource with a given size lacks a helper and
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is therefore coded manually unlike the getter side which has a helper for
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resource size calculation. Also, almost all callsites that calculate the
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end address for a resource also set the start address right before it like
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this:
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res->start = start_addr;
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res->end = res->start + size - 1;
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Add resource_set_range(res, start_addr, size) that sets the start address
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and calculates the end address to simplify this often repeated fragment.
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Also add resource_set_size() for the cases where setting the start address
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of the resource is not necessary but mention in its kerneldoc that
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resource_set_range() is preferred when setting both addresses.
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Link: https://lore.kernel.org/r/20240614100606.15830-2-ilpo.jarvinen@linux.intel.com
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Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
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Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
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---
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include/linux/ioport.h | 32 ++++++++++++++++++++++++++++++++
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1 file changed, 32 insertions(+)
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--- a/include/linux/ioport.h
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+++ b/include/linux/ioport.h
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@@ -249,6 +249,38 @@ struct resource *lookup_resource(struct
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int adjust_resource(struct resource *res, resource_size_t start,
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resource_size_t size);
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resource_size_t resource_alignment(struct resource *res);
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+
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+/**
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+ * resource_set_size - Calculate resource end address from size and start
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+ * @res: Resource descriptor
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+ * @size: Size of the resource
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+ *
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+ * Calculate the end address for @res based on @size.
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+ *
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+ * Note: The start address of @res must be set when calling this function.
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+ * Prefer resource_set_range() if setting both the start address and @size.
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+ */
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+static inline void resource_set_size(struct resource *res, resource_size_t size)
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+{
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+ res->end = res->start + size - 1;
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+}
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+
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+/**
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+ * resource_set_range - Set resource start and end addresses
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+ * @res: Resource descriptor
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+ * @start: Start address for the resource
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+ * @size: Size of the resource
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+ *
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+ * Set @res start address and calculate the end address based on @size.
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+ */
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+static inline void resource_set_range(struct resource *res,
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+ resource_size_t start,
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+ resource_size_t size)
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+{
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+ res->start = start;
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+ resource_set_size(res, size);
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+}
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+
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static inline resource_size_t resource_size(const struct resource *res)
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{
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return res->end - res->start + 1;
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