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authorKefeng Wang <wangkefeng.wang@huawei.com>2021-01-15 13:46:04 +0800
committerPalmer Dabbelt <palmerdabbelt@google.com>2021-02-18 23:17:57 -0800
commitc72160fe05fb978ad859ba053c4462c2bb960b13 (patch)
tree7e049e02369f5e4d78f2c9f3cfe24a89163d8b72 /include/linux/initrd.h
parentfade5cad9339a627c5ad029e3577582b6292df03 (diff)
initramfs: Provide a common initrd reserve function
Some architectures(eg, ARM and riscv) have similar logic to check and reserve the memory of initrd, let's provide a common function reserve_initrd_mem() to reduce duplicated code. Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'include/linux/initrd.h')
-rw-r--r--include/linux/initrd.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/initrd.h b/include/linux/initrd.h
index fc30ac30e10e..85c15717af34 100644
--- a/include/linux/initrd.h
+++ b/include/linux/initrd.h
@@ -18,6 +18,12 @@ extern int initrd_below_start_ok;
extern unsigned long initrd_start, initrd_end;
extern void free_initrd_mem(unsigned long, unsigned long);
+#ifdef CONFIG_BLK_DEV_INITRD
+extern void __init reserve_initrd_mem(void);
+#else
+static inline void __init reserve_initrd_mem(void) {}
+#endif
+
extern phys_addr_t phys_initrd_start;
extern unsigned long phys_initrd_size;