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authorMike Rapoport <rppt@linux.ibm.com>2019-07-24 17:10:32 +0300
committerMax Filippov <jcmvbkbc@gmail.com>2019-08-27 04:19:04 +0300
commitf348f5c232408cb44451cc5ba52a4b326b6034da (patch)
tree342874ab6f459df75c1fd78bca9b4afa4fa5fdbe /arch/xtensa
parenta55aa89aab90fae7c815b0551b07be37db359d76 (diff)
downloadlinux-f348f5c232408cb44451cc5ba52a4b326b6034da.tar.xz
xtensa: remove free_initrd_mem
The xtensa free_initrd_mem() verifies that initrd is mapped and then frees its memory using free_reserved_area(). The initrd is considered mapped when its memory was successfully reserved with mem_reserve(). Resetting initrd_start to 0 in case of mem_reserve() failure allows to switch to generic free_initrd_mem() implementation. Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Message-Id: <1563977432-8376-1-git-send-email-rppt@linux.ibm.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'arch/xtensa')
-rw-r--r--arch/xtensa/kernel/setup.c9
-rw-r--r--arch/xtensa/mm/init.c10
2 files changed, 3 insertions, 16 deletions
diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c
index 7c3106093c75..e0e1e1892b86 100644
--- a/arch/xtensa/kernel/setup.c
+++ b/arch/xtensa/kernel/setup.c
@@ -61,7 +61,6 @@ struct screen_info screen_info = {
#ifdef CONFIG_BLK_DEV_INITRD
extern unsigned long initrd_start;
extern unsigned long initrd_end;
-int initrd_is_mapped = 0;
extern int initrd_below_start_ok;
#endif
@@ -332,13 +331,11 @@ void __init setup_arch(char **cmdline_p)
/* Reserve some memory regions */
#ifdef CONFIG_BLK_DEV_INITRD
- if (initrd_start < initrd_end) {
- initrd_is_mapped = mem_reserve(__pa(initrd_start),
- __pa(initrd_end)) == 0;
+ if (initrd_start < initrd_end &&
+ !mem_reserve(__pa(initrd_start), __pa(initrd_end)))
initrd_below_start_ok = 1;
- } else {
+ else
initrd_start = 0;
- }
#endif
mem_reserve(__pa(_stext), __pa(_end));
diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c
index 79467c749416..d898ed67d890 100644
--- a/arch/xtensa/mm/init.c
+++ b/arch/xtensa/mm/init.c
@@ -203,16 +203,6 @@ void __init mem_init(void)
(unsigned long)(__bss_stop - __bss_start) >> 10);
}
-#ifdef CONFIG_BLK_DEV_INITRD
-extern int initrd_is_mapped;
-
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
- if (initrd_is_mapped)
- free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
static void __init parse_memmap_one(char *p)
{
char *oldp;