RISC-V: Remove mem_end command line processing

Web:        https://git.kernel.org/torvalds/c/5d44bf2065e169dd857a4207505210fce25743e6
Commit:     5d44bf2065e169dd857a4207505210fce25743e6
Parent:     3e076a7e049267e9c483674d0dd1caaca565dbef
Refname:    refs/heads/master
Author:     Palmer Dabbelt <[email protected]>
AuthorDate: Sat Dec 16 11:17:16 2017 -0800
Committer:  Palmer Dabbelt <[email protected]>
CommitDate: Tue Jan 30 19:09:53 2018 -0800

    RISC-V: Remove mem_end command line processing
    
    This is just some cruft left over from before the port converted to
    device tree.  The right way to handle memory regions is to specify them
    in the device tree, which BBL (our simplest bootloader) is already
    capable of doing.  This patch simply removes the cruft.
    
    Signed-off-by: Palmer Dabbelt <[email protected]>
---
 arch/riscv/kernel/setup.c | 19 -------------------
 1 file changed, 19 deletions(-)

diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
index a548ccf48024..c6d095ff5ab8 100644
--- a/arch/riscv/kernel/setup.c
+++ b/arch/riscv/kernel/setup.c
@@ -149,25 +149,6 @@ void __init sbi_save(unsigned int hartid, void *dtb)
 	early_init_dt_scan(__va(dtb));
 }
 
-/*
- * Allow the user to manually add a memory region (in case DTS is broken);
- * "mem_end=nn[KkMmGg]"
- */
-static int __init mem_end_override(char *p)
-{
-	resource_size_t base, end;
-
-	if (!p)
-		return -EINVAL;
-	base = (uintptr_t) __pa(PAGE_OFFSET);
-	end = memparse(p, &p) & PMD_MASK;
-	if (end == 0)
-		return -EINVAL;
-	memblock_add(base, end - base);
-	return 0;
-}
-early_param("mem_end", mem_end_override);