linux-kernel - [PATCH v2 1/1] range.h: Move resource API and constant to respective files

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Message-Id: <20230714092200.1834-1-andriy.shevchenko@linux.intel.com>
Date:   Fri, 14 Jul 2023 12:22:00 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Alexander Sverdlin <alexander.sverdlin@...ia.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Dan Williams <dan.j.williams@...el.com>,
        linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-pci@...r.kernel.org
Cc:     Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>
Subject: [PATCH v2 1/1] range.h: Move resource API and constant to respective files

range.h works with struct range data type. The resource_size_t
is an alien here.

(1) Move cap_resource() implementation into its only user, and
(2) rename and move RESOURCE_SIZE_MAX to limits.h.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@...gle.com>
---
v2: added tag (Bjorn), massaged commit message (Bjorn)
 arch/mips/cavium-octeon/setup.c | 2 +-
 arch/x86/pci/amd_bus.c          | 8 ++++++++
 arch/x86/pci/bus_numa.c         | 2 +-
 include/linux/limits.h          | 2 ++
 include/linux/range.h           | 8 --------
 5 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/arch/mips/cavium-octeon/setup.c b/arch/mips/cavium-octeon/setup.c
index c5561016f577..1ad2602a0383 100644
--- a/arch/mips/cavium-octeon/setup.c
+++ b/arch/mips/cavium-octeon/setup.c
@@ -1240,7 +1240,7 @@ static int __init octeon_no_pci_init(void)
 	 */
 	octeon_dummy_iospace = vzalloc(IO_SPACE_LIMIT);
 	set_io_port_base((unsigned long)octeon_dummy_iospace);
-	ioport_resource.start = MAX_RESOURCE;
+	ioport_resource.start = RESOURCE_SIZE_MAX;
 	ioport_resource.end = 0;
 	return 0;
 }
diff --git a/arch/x86/pci/amd_bus.c b/arch/x86/pci/amd_bus.c
index dd40d3fea74e..631512f7ec85 100644
--- a/arch/x86/pci/amd_bus.c
+++ b/arch/x86/pci/amd_bus.c
@@ -51,6 +51,14 @@ static struct pci_root_info __init *find_pci_root_info(int node, int link)
 	return NULL;
 }
 
+static inline resource_size_t cap_resource(u64 val)
+{
+	if (val > RESOURCE_SIZE_MAX)
+		return RESOURCE_SIZE_MAX;
+
+	return val;
+}
+
 /**
  * early_root_info_init()
  * called before pcibios_scan_root and pci_scan_bus
diff --git a/arch/x86/pci/bus_numa.c b/arch/x86/pci/bus_numa.c
index 2752c02e3f0e..e4a525e59eaf 100644
--- a/arch/x86/pci/bus_numa.c
+++ b/arch/x86/pci/bus_numa.c
@@ -101,7 +101,7 @@ void update_res(struct pci_root_info *info, resource_size_t start,
 	if (start > end)
 		return;
 
-	if (start == MAX_RESOURCE)
+	if (start == RESOURCE_SIZE_MAX)
 		return;
 
 	if (!merge)
diff --git a/include/linux/limits.h b/include/linux/limits.h
index f6bcc9369010..38eb7f6f7e88 100644
--- a/include/linux/limits.h
+++ b/include/linux/limits.h
@@ -10,6 +10,8 @@
 #define SSIZE_MAX	((ssize_t)(SIZE_MAX >> 1))
 #define PHYS_ADDR_MAX	(~(phys_addr_t)0)
 
+#define RESOURCE_SIZE_MAX	((resource_size_t)~0)
+
 #define U8_MAX		((u8)~0U)
 #define S8_MAX		((s8)(U8_MAX >> 1))
 #define S8_MIN		((s8)(-S8_MAX - 1))
diff --git a/include/linux/range.h b/include/linux/range.h
index 7efb6a9b069b..6ad0b73cb7ad 100644
--- a/include/linux/range.h
+++ b/include/linux/range.h
@@ -31,12 +31,4 @@ int clean_sort_range(struct range *range, int az);
 
 void sort_range(struct range *range, int nr_range);
 
-#define MAX_RESOURCE ((resource_size_t)~0)
-static inline resource_size_t cap_resource(u64 val)
-{
-	if (val > MAX_RESOURCE)
-		return MAX_RESOURCE;
-
-	return val;
-}
 #endif
-- 
2.40.0.1.gaa8946217a0b