Commit-ID: 553bbc11aa6c1f9e0f529a06aeeca15fbe4a3985 Gitweb: http://git.kernel.org/tip/553bbc11aa6c1f9e0f529a06aeeca15fbe4a3985 Author: Arnd Bergmann <arnd@xxxxxxxx> AuthorDate: Wed, 16 Nov 2016 15:17:09 +0100 Committer: Ingo Molnar <mingo@xxxxxxxxxx> CommitDate: Thu, 17 Nov 2016 07:34:58 +0100 x86/boot: Avoid warning for zero-filling .bss The latest binutils are warning about a .fill directive with an explicit value in a .bss section: arch/x86/kernel/head_32.S: Assembler messages: arch/x86/kernel/head_32.S:677: Warning: ignoring fill value in section `.bss..page_aligned' arch/x86/kernel/head_32.S:679: Warning: ignoring fill value in section `.bss..page_aligned' This comes from the 'ENTRY()' macro padding the space between the symbols with 'nop' via: .align 4,0x90 Open-coding the .globl directive without the padding avoids that warning, as all the symbols are already page aligned. Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Cc: Andy Lutomirski <luto@xxxxxxxxxx> Cc: Borislav Petkov <bp@xxxxxxxxx> Cc: Brian Gerst <brgerst@xxxxxxxxx> Cc: Denys Vlasenko <dvlasenk@xxxxxxxxxx> Cc: H. Peter Anvin <hpa@xxxxxxxxx> Cc: Josh Poimboeuf <jpoimboe@xxxxxxxxxx> Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Link: http://lkml.kernel.org/r/20161116141726.2013389-1-arnd@xxxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> --- arch/x86/kernel/head_32.S | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S index b6b2f02..2dabea4 100644 --- a/arch/x86/kernel/head_32.S +++ b/arch/x86/kernel/head_32.S @@ -665,14 +665,17 @@ __PAGE_ALIGNED_BSS initial_pg_pmd: .fill 1024*KPMDS,4,0 #else -ENTRY(initial_page_table) +.globl initial_page_table +initial_page_table: .fill 1024,4,0 #endif initial_pg_fixmap: .fill 1024,4,0 -ENTRY(empty_zero_page) +.globl empty_zero_page +empty_zero_page: .fill 4096,1,0 -ENTRY(swapper_pg_dir) +.globl swapper_pg_dir +swapper_pg_dir: .fill 1024,4,0 EXPORT_SYMBOL(empty_zero_page) -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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