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| author | Uros Bizjak <ubizjak@gmail.com> | 2024-05-20 10:29:55 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2024-05-21 13:36:36 +0200 |
| commit | b855cc58fc93c175fd5bb868d5e3a45cb3e1a42b (patch) | |
| tree | 9f7665afde9c5bd0e582a33164f7cb31c0374ae3 /arch/x86/boot | |
| parent | 41c14f1ac82cdb1e009d635ffd5ae5dc4cc3f036 (diff) | |
| download | linux-b855cc58fc93c175fd5bb868d5e3a45cb3e1a42b.tar.gz linux-b855cc58fc93c175fd5bb868d5e3a45cb3e1a42b.tar.bz2 linux-b855cc58fc93c175fd5bb868d5e3a45cb3e1a42b.zip | |
x86/boot: Use current_stack_pointer to avoid asm() in init_heap()
Use current_stack_pointer to avoid asm() in the calculation of
stack_end in init_heap(). The new code is more readable and
results in exactly the same object file.
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20240520083011.135342-1-ubizjak@gmail.com
Diffstat (limited to 'arch/x86/boot')
| -rw-r--r-- | arch/x86/boot/main.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/x86/boot/main.c b/arch/x86/boot/main.c index 9049f390d834..ac78f8c01908 100644 --- a/arch/x86/boot/main.c +++ b/arch/x86/boot/main.c @@ -119,9 +119,8 @@ static void init_heap(void) char *stack_end; if (boot_params.hdr.loadflags & CAN_USE_HEAP) { - asm("leal %n1(%%esp),%0" - : "=r" (stack_end) : "i" (STACK_SIZE)); - + stack_end = (char *) + (current_stack_pointer - STACK_SIZE); heap_end = (char *) ((size_t)boot_params.hdr.heap_end_ptr + 0x200); if (heap_end > stack_end) |