5.4-stable review patch. If anyone has any objections, please let me know.
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From: Mike Rapoport rppt@kernel.org
[ Upstream commit 0075df288dd8a7abfe03b3766176c393063591dd ]
Before commit 721f4a6526da ("mm/memblock: remove empty dummy entry") the check for non-zero of memblock.reserved.cnt in mmu_init() would always be true either because memblock.reserved.cnt is initialized to 1 or because there were memory reservations earlier.
The removal of dummy empty entry in memblock caused this check to fail because now memblock.reserved.cnt is initialized to 0.
Remove the check for non-zero of memblock.reserved.cnt because it's perfectly fine to have an empty memblock.reserved array that early in boot.
Reported-by: Guenter Roeck linux@roeck-us.net Signed-off-by: Mike Rapoport rppt@kernel.org Reviewed-by: Wei Yang richard.weiyang@gmail.com Tested-by: Guenter Roeck linux@roeck-us.net Link: https://lore.kernel.org/r/20240729053327.4091459-1-rppt@kernel.org Signed-off-by: Guenter Roeck linux@roeck-us.net Signed-off-by: Sasha Levin sashal@kernel.org --- arch/microblaze/mm/init.c | 5 ----- 1 file changed, 5 deletions(-)
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c index a015a951c8b78..0a190c55577e6 100644 --- a/arch/microblaze/mm/init.c +++ b/arch/microblaze/mm/init.c @@ -276,11 +276,6 @@ asmlinkage void __init mmu_init(void) { unsigned int kstart, ksize;
- if (!memblock.reserved.cnt) { - pr_emerg("Error memory count\n"); - machine_restart(NULL); - } - if ((u32) memblock.memory.regions[0].size < 0x400000) { pr_emerg("Memory must be greater than 4MB\n"); machine_restart(NULL);