[PATCH -fixes] riscv: Fix unused variable warning when BUILTIN_DTB is set

[PATCH -fixes] riscv: Fix unused variable warning when BUILTIN_DTB is set

[Alexandre Ghiti]

commit ef69d2559fe9 ("riscv: Move early dtb mapping into the fixmap
region") wrongly moved the #ifndef CONFIG_BUILTIN_DTB surrounding the pa
variable definition in create_fdt_early_page_table(), so move it back to
its right place to quiet the following warning:

../arch/riscv/mm/init.c: In function ‘create_fdt_early_page_table’:
../arch/riscv/mm/init.c:925:12: warning: unused variable ‘pa’ [-Wunused-variable]
  925 |  uintptr_t pa = dtb_pa & ~(PMD_SIZE - 1);

Fixes: ef69d2559fe9 ("riscv: Move early dtb mapping into the fixmap region")
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
---
 arch/riscv/mm/init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index 747e5b1ef02d..c6bb966e4123 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -922,9 +922,9 @@ static void __init create_kernel_page_table(pgd_t *pgdir, bool early)
 static void __init create_fdt_early_page_table(uintptr_t fix_fdt_va,
 					       uintptr_t dtb_pa)
 {
+#ifndef CONFIG_BUILTIN_DTB
 	uintptr_t pa = dtb_pa & ~(PMD_SIZE - 1);
 
-#ifndef CONFIG_BUILTIN_DTB
 	/* Make sure the fdt fixmap address is always aligned on PMD size */
 	BUILD_BUG_ON(FIX_FDT % (PMD_SIZE / PAGE_SIZE));
 
-- 
2.37.2


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Re: [PATCH -fixes] riscv: Fix unused variable warning when BUILTIN_DTB is set

[Conor Dooley]

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On Fri, May 19, 2023 at 03:13:11PM +0200, Alexandre Ghiti wrote:
> commit ef69d2559fe9 ("riscv: Move early dtb mapping into the fixmap
> region") wrongly moved the #ifndef CONFIG_BUILTIN_DTB surrounding the pa
> variable definition in create_fdt_early_page_table(), so move it back to
> its right place to quiet the following warning:
> 
> ../arch/riscv/mm/init.c: In function ‘create_fdt_early_page_table’:
> ../arch/riscv/mm/init.c:925:12: warning: unused variable ‘pa’ [-Wunused-variable]
>   925 |  uintptr_t pa = dtb_pa & ~(PMD_SIZE - 1);
> 
> Fixes: ef69d2559fe9 ("riscv: Move early dtb mapping into the fixmap region")
> Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>

Thanks Alex.

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Re: [PATCH -fixes] riscv: Fix unused variable warning when BUILTIN_DTB is set

[patchwork-bot+linux-riscv]

Hello:

This patch was applied to riscv/linux.git (fixes)
by Palmer Dabbelt <palmer@rivosinc.com>:

On Fri, 19 May 2023 15:13:11 +0200 you wrote:
> commit ef69d2559fe9 ("riscv: Move early dtb mapping into the fixmap
> region") wrongly moved the #ifndef CONFIG_BUILTIN_DTB surrounding the pa
> variable definition in create_fdt_early_page_table(), so move it back to
> its right place to quiet the following warning:
> 
> ../arch/riscv/mm/init.c: In function ‘create_fdt_early_page_table’:
> ../arch/riscv/mm/init.c:925:12: warning: unused variable ‘pa’ [-Wunused-variable]
>   925 |  uintptr_t pa = dtb_pa & ~(PMD_SIZE - 1);
> 
> [...]

Here is the summary with links:
  - [-fixes] riscv: Fix unused variable warning when BUILTIN_DTB is set
    https://git.kernel.org/riscv/c/33d418da6f47

You are awesome, thank you!
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