linux-kernel - [PATCH] powerpc/powernv/pci: remove dead code from !CONFIG

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Date:   Thu, 22 Apr 2021 12:54:02 -0700
From:   Nick Desaulniers <ndesaulniers@...gle.com>
To:     Michael Ellerman <mpe@...erman.id.au>
Cc:     Nick Desaulniers <ndesaulniers@...gle.com>,
        Nathan Chancellor <nathan@...nel.org>,
        Joe Perches <joe@...ches.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        "Oliver O'Halloran" <oohall@...il.com>,
        Alexey Kardashevskiy <aik@...abs.ru>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: [PATCH] powerpc/powernv/pci: remove dead code from !CONFIG_EEH

While looking at -Wundef warnings, the #if CONFIG_EEH stood out as a
possible candidate to convert to #ifdef CONFIG_EEH, but it seems that
based on Kconfig dependencies it's not possible to build this file
without CONFIG_EEH enabled.

Suggested-by: Nathan Chancellor <nathan@...nel.org>
Suggested-by: Joe Perches <joe@...ches.com>
Link: https://github.com/ClangBuiltLinux/linux/issues/570
Link: https://lore.kernel.org/lkml/67f6cd269684c9aa8463ff4812c3b4605e6739c3.camel@perches.com/
Signed-off-by: Nick Desaulniers <ndesaulniers@...gle.com>
---
 arch/powerpc/platforms/powernv/pci.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index 9b9bca169275..591480a37b05 100644
--- a/arch/powerpc/platforms/powernv/pci.c
+++ b/arch/powerpc/platforms/powernv/pci.c
@@ -711,7 +711,6 @@ int pnv_pci_cfg_write(struct pci_dn *pdn,
 	return PCIBIOS_SUCCESSFUL;
 }
 
-#if CONFIG_EEH
 static bool pnv_pci_cfg_check(struct pci_dn *pdn)
 {
 	struct eeh_dev *edev = NULL;
@@ -734,12 +733,6 @@ static bool pnv_pci_cfg_check(struct pci_dn *pdn)
 
 	return true;
 }
-#else
-static inline pnv_pci_cfg_check(struct pci_dn *pdn)
-{
-	return true;
-}
-#endif /* CONFIG_EEH */
 
 static int pnv_pci_read_config(struct pci_bus *bus,
 			       unsigned int devfn,

base-commit: 16fc44d6387e260f4932e9248b985837324705d8
prerequisite-patch-id: 950233069fb22099a8ff8990f620f5c3586a3cbd
-- 
2.31.1.498.g6c1eba8ee3d-goog