From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: linux-kernel@vger.kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: [PATCH v1 1/1] x86/boot: Use __ALIGN_KERNEL_MASK() instead of open coded analogue
Date: Fri, 4 Apr 2025 19:53:03 +0300 [thread overview]
Message-ID: <20250404165303.3657139-1-andriy.shevchenko@linux.intel.com> (raw)
LOAD_PHYSICAL_ADDR is calculated as an aligned (up) CONFIG_PHYSICAL_START
with the respective alignment value CONFIG_PHYSICAL_ALIGN. However,
the code is written openly while we have __ALIGN_KERNEL_MASK() macro
that does the same. This macro has nothing special, that's why
it may be used in assembler code or linker scripts (on the contrary
__ALIGN_KERNEL() may not). Do it so.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
arch/x86/include/asm/page_types.h | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/x86/include/asm/page_types.h b/arch/x86/include/asm/page_types.h
index 974688973cf6..1f749eb5c3cb 100644
--- a/arch/x86/include/asm/page_types.h
+++ b/arch/x86/include/asm/page_types.h
@@ -29,9 +29,7 @@
#define VM_DATA_DEFAULT_FLAGS VM_DATA_FLAGS_TSK_EXEC
/* Physical address where kernel should be loaded. */
-#define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
- + (CONFIG_PHYSICAL_ALIGN - 1)) \
- & ~(CONFIG_PHYSICAL_ALIGN - 1))
+#define LOAD_PHYSICAL_ADDR __ALIGN_KERNEL_MASK(CONFIG_PHYSICAL_START, CONFIG_PHYSICAL_ALIGN - 1)
#define __START_KERNEL (__START_KERNEL_map + LOAD_PHYSICAL_ADDR)
--
2.47.2
next reply other threads:[~2025-04-04 16:53 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-04 16:53 Andy Shevchenko [this message]
2025-04-06 18:12 ` [tip: x86/boot] " tip-bot2 for Andy Shevchenko
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