Re: [PATCH v2 3/6 update] mm: pgtable: convert some architectures to use tlb_remove_ptdesc()

[Andrew Morton <akpm@linux-foundation.org>]

On Mon,  3 Mar 2025 15:26:03 +0800 Qi Zheng <zhengqi.arch@bytedance.com> wrote:

> Now, the nine architectures of csky, hexagon, loongarch, m68k, mips,
> nios2, openrisc, sh and um do not select CONFIG_MMU_GATHER_RCU_TABLE_FREE,
> and just call pagetable_dtor() + tlb_remove_page_ptdesc() (the wrapper of
> tlb_remove_page()). This is the same as the implementation of
> tlb_remove_{ptdesc|table}() under !CONFIG_MMU_GATHER_TABLE_FREE, so
> convert these architectures to use tlb_remove_ptdesc().
> 

checkpatch warns.

Do these things have to be macros?  Switching to static inline fixes
the unused-arg warning in a nice fashion.

I'll fix the trailing-semicolon issue locally.

WARNING: Argument 'address' is not used in function-like macro
#51: FILE: arch/csky/include/asm/pgalloc.h:64:
+#define __pte_free_tlb(tlb, pte, address)	\
+	tlb_remove_ptdesc((tlb), page_ptdesc(pte))

WARNING: Argument 'addr' is not used in function-like macro
#66: FILE: arch/hexagon/include/asm/pgalloc.h:90:
+#define __pte_free_tlb(tlb, pte, addr)	\
+	tlb_remove_ptdesc((tlb), page_ptdesc(pte))

WARNING: Argument 'address' is not used in function-like macro
#80: FILE: arch/loongarch/include/asm/pgalloc.h:58:
+#define __pte_free_tlb(tlb, pte, address)	\
+	tlb_remove_ptdesc((tlb), page_ptdesc(pte));

WARNING: macros should not use a trailing semicolon
#80: FILE: arch/loongarch/include/asm/pgalloc.h:58:
+#define __pte_free_tlb(tlb, pte, address)	\
+	tlb_remove_ptdesc((tlb), page_ptdesc(pte));

WARNING: Argument 'addr' is not used in function-like macro
#95: FILE: arch/m68k/include/asm/sun3_pgalloc.h:20:
+#define __pte_free_tlb(tlb, pte, addr)	\
+	tlb_remove_ptdesc((tlb), page_ptdesc(pte))

WARNING: Argument 'address' is not used in function-like macro
#110: FILE: arch/mips/include/asm/pgalloc.h:51:
+#define __pte_free_tlb(tlb, pte, address)	\
+	tlb_remove_ptdesc((tlb), page_ptdesc(pte))

WARNING: Argument 'addr' is not used in function-like macro
#125: FILE: arch/nios2/include/asm/pgalloc.h:31:
+#define __pte_free_tlb(tlb, pte, addr)	\
+	tlb_remove_ptdesc((tlb), page_ptdesc(pte))

WARNING: Argument 'addr' is not used in function-like macro
#139: FILE: arch/openrisc/include/asm/pgalloc.h:67:
+#define __pte_free_tlb(tlb, pte, addr)	\
+	tlb_remove_ptdesc((tlb), page_ptdesc(pte))

WARNING: Argument 'addr' is not used in function-like macro
#153: FILE: arch/sh/include/asm/pgalloc.h:35:
+#define __pte_free_tlb(tlb, pte, addr)	\
+	tlb_remove_ptdesc((tlb), page_ptdesc(pte))

WARNING: Argument 'address' is not used in function-like macro
#167: FILE: arch/um/include/asm/pgalloc.h:28:
+#define __pte_free_tlb(tlb, pte, address)	\
+	tlb_remove_ptdesc((tlb), page_ptdesc(pte))

WARNING: Argument 'address' is not used in function-like macro
#176: FILE: arch/um/include/asm/pgalloc.h:33:
+#define __pmd_free_tlb(tlb, pmd, address)	\
+	tlb_remove_ptdesc((tlb), virt_to_ptdesc(pmd))

WARNING: Argument 'address' is not used in function-like macro
#185: FILE: arch/um/include/asm/pgalloc.h:38:
+#define __pud_free_tlb(tlb, pud, address)	\
+	tlb_remove_ptdesc((tlb), virt_to_ptdesc(pud))

total: 0 errors, 12 warnings, 122 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

./patches/mm-pgtable-convert-some-architectures-to-use-tlb_remove_ptdesc-v2.patch has style problems, please review.

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.