MIPS: stop using _PTRS_PER_PGD (2f0b649b) · Commits · 戴 / test

gcc 3.3 has been retired for a while, use PTRS_PER_PGD and remove the asm-offsets.h inclusion. Signed-off-by:

Paul Burton <paul.burton@mips.com> Patchwork: https://patchwork.linux-mips.org/patch/20814/ Cc: James Hogan <jhogan@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org

arch/mips/mm/init.c

+1 −6

Original line number	Diff line number	Diff line
		@@ -32,7 +32,6 @@
		#include <linux/kcore.h>
		#include <linux/initrd.h>

		#include <asm/asm-offsets.h>
		#include <asm/bootinfo.h>
		#include <asm/cachectl.h>
		#include <asm/cpu.h>
		@@ -521,17 +520,13 @@ unsigned long pgd_current[NR_CPUS];
		#endif

		/*
		* gcc 3.3 and older have trouble determining that PTRS_PER_PGD and PGD_ORDER
		* are constants. So we use the variants from asm-offset.h until that gcc
		* will officially be retired.
		*
		* Align swapper_pg_dir in to 64K, allows its address to be loaded
		* with a single LUI instruction in the TLB handlers. If we used
		* __aligned(64K), its size would get rounded up to the alignment
		* size, and waste space. So we place it in its own section and align
		* it in the linker script.
		*/
		pgd_t swapper_pg_dir[_PTRS_PER_PGD] __section(.bss..swapper_pg_dir);
		pgd_t swapper_pg_dir[PTRS_PER_PGD] __section(.bss..swapper_pg_dir);
		#ifndef __PAGETABLE_PUD_FOLDED
		pud_t invalid_pud_table[PTRS_PER_PUD] __page_aligned_bss;
		#endif