powerpc: Delete unused function delete_fdt_mem_rsv()

delete_fdt_mem_rsv() defined in "arch/powerpc/kexec/file_load.c"
has been renamed to fdt_find_and_del_mem_rsv(), and moved to
"drivers/of/kexec.c".

Remove delete_fdt_mem_rsv() in "arch/powerpc/kexec/file_load.c".

Co-developed-by: Prakhar Srivastava <prsriva@linux.microsoft.com>
Signed-off-by: Prakhar Srivastava <prsriva@linux.microsoft.com>
Signed-off-by: Lakshmi Ramasubramanian <nramas@linux.microsoft.com>
Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210221174930.27324-13-nramas@linux.microsoft.com

diff --git a/arch/powerpc/include/asm/kexec.h b/arch/powerpc/include/asm/kexec.h
index f2c5e60..9fccbb1 100644 (file)
--- a/arch/powerpc/include/asm/kexec.h
+++ b/arch/powerpc/include/asm/kexec.h
@@ -115,7 +115,6 @@ char *setup_kdump_cmdline(struct kimage *image, char *cmdline,
 int setup_purgatory(struct kimage *image, const void *slave_code,
                    const void *fdt, unsigned long kernel_load_addr,
                    unsigned long fdt_load_addr);
-int delete_fdt_mem_rsv(void *fdt, unsigned long start, unsigned long size);
 
 #ifdef CONFIG_PPC64
 struct kexec_buf;

diff --git a/arch/powerpc/kexec/file_load.c b/arch/powerpc/kexec/file_load.c
index dc28cb7..4284f76 100644 (file)
--- a/arch/powerpc/kexec/file_load.c
+++ b/arch/powerpc/kexec/file_load.c
@@ -107,35 +107,3 @@ int setup_purgatory(struct kimage *image, const void *slave_code,
 
        return 0;
 }
-
-/**
- * delete_fdt_mem_rsv - delete memory reservation with given address and size
- *
- * Return: 0 on success, or negative errno on error.
- */
-int delete_fdt_mem_rsv(void *fdt, unsigned long start, unsigned long size)
-{
-       int i, ret, num_rsvs = fdt_num_mem_rsv(fdt);
-
-       for (i = 0; i < num_rsvs; i++) {
-               uint64_t rsv_start, rsv_size;
-
-               ret = fdt_get_mem_rsv(fdt, i, &rsv_start, &rsv_size);
-               if (ret) {
-                       pr_err("Malformed device tree.\n");
-                       return -EINVAL;
-               }
-
-               if (rsv_start == start && rsv_size == size) {
-                       ret = fdt_del_mem_rsv(fdt, i);
-                       if (ret) {
-                               pr_err("Error deleting device tree reservation.\n");
-                               return -EINVAL;
-                       }
-
-                       return 0;
-               }
-       }
-
-       return -ENOENT;
-}