linux-kernel - [PATCH v4 2/6] riscv: init: merge split string literals in preprocessor directive

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Message-Id: <20191024225838.27743-3-paul.walmsley@sifive.com>
Date:   Thu, 24 Oct 2019 15:58:34 -0700
From:   Paul Walmsley <paul.walmsley@...ive.com>
To:     linux-riscv@...ts.infradead.org
Cc:     linux-kernel@...r.kernel.org, hch@....dev, greentime.hu@...ive.com,
        luc.vanoostenryck@...il.com, Christoph Hellwig <hch@....de>,
        Anup Patel <anup.patel@....com>
Subject: [PATCH v4 2/6] riscv: init: merge split string literals in preprocessor directive

sparse complains loudly when string literals associated with
preprocessor directives are split into multiple, separately quoted
strings across different lines:

arch/riscv/mm/init.c:341:9: error: Expected ; at the end of type declaration
arch/riscv/mm/init.c:341:9: error: got "not use absolute addressing."
arch/riscv/mm/init.c:358:9: error: Trying to use reserved word 'do' as identifier
arch/riscv/mm/init.c:358:9: error: Expected ; at end of declaration
[ ... ]

It turns out this doesn't compile.  The existing Linux practice for
this situation is simply to use a single long line.  So, fix by
concatenating the strings.

This patch should have no functional impact.

This version incorporates changes based on feedback from Luc Van
Oostenryck <luc.vanoostenryck@...il.com>.

Signed-off-by: Paul Walmsley <paul.walmsley@...ive.com>
Reviewed-by: Luc Van Oostenryck <luc.vanoostenryck@...il.com>
Reviewed-by: Christoph Hellwig <hch@....de>
Link: https://lore.kernel.org/linux-riscv/CAAhSdy2nX2LwEEAZuMtW_ByGTkHO6KaUEvVxRnba_ENEjmFayQ@mail.gmail.com/T/#mc1a58bc864f71278123d19a7abc083a9c8e37033
Fixes: 387181dcdb6c1 ("RISC-V: Always compile mm/init.c with cmodel=medany and notrace")
Cc: Anup Patel <anup.patel@....com>
---
 arch/riscv/mm/init.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index 07af7b1e4069..573463d1c799 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -339,8 +339,7 @@ static uintptr_t __init best_map_size(phys_addr_t base, phys_addr_t size)
  */
 
 #ifndef __riscv_cmodel_medany
-#error "setup_vm() is called from head.S before relocate so it should "
-	"not use absolute addressing."
+#error "setup_vm() is called from head.S before relocate so it should not use absolute addressing."
 #endif
 
 asmlinkage void __init setup_vm(uintptr_t dtb_pa)
-- 
2.24.0.rc0