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Message-ID: <20190807141857.GA4198@embeddedor>
Date: Wed, 7 Aug 2019 09:18:57 -0500
From: "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To: Marc Zyngier <maz@...nel.org>, James Morse <james.morse@....com>,
Julien Thierry <julien.thierry.kdev@...il.com>,
Suzuki K Poulose <suzuki.poulose@....com>,
Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will@...nel.org>
Cc: linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.cs.columbia.edu,
linux-kernel@...r.kernel.org,
"Gustavo A. R. Silva" <gustavo@...eddedor.com>
Subject: [PATCH] arm64: KVM: hyp: debug-sr: Mark expected switch fall-throughs
Mark switch cases where we are expecting to fall through.
This patch fixes the following warnings (Building: allmodconfig arm64):
arch/arm64/kvm/hyp/debug-sr.c:20:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/arm64/kvm/hyp/debug-sr.c:21:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/arm64/kvm/hyp/debug-sr.c:22:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/arm64/kvm/hyp/debug-sr.c:23:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/arm64/kvm/hyp/debug-sr.c:24:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/arm64/kvm/hyp/debug-sr.c:25:19: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/arm64/kvm/hyp/debug-sr.c:26:18: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/arm64/kvm/hyp/debug-sr.c:27:18: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/arm64/kvm/hyp/debug-sr.c:28:18: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/arm64/kvm/hyp/debug-sr.c:29:18: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/arm64/kvm/hyp/debug-sr.c:30:18: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/arm64/kvm/hyp/debug-sr.c:31:18: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/arm64/kvm/hyp/debug-sr.c:32:18: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/arm64/kvm/hyp/debug-sr.c:33:18: warning: this statement may fall through [-Wimplicit-fallthrough=]
arch/arm64/kvm/hyp/debug-sr.c:34:18: warning: this statement may fall through [-Wimplicit-fallthrough=]
Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
---
arch/arm64/kvm/hyp/debug-sr.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/arch/arm64/kvm/hyp/debug-sr.c b/arch/arm64/kvm/hyp/debug-sr.c
index 26781da3ad3e..0fc9872a1467 100644
--- a/arch/arm64/kvm/hyp/debug-sr.c
+++ b/arch/arm64/kvm/hyp/debug-sr.c
@@ -18,40 +18,70 @@
#define save_debug(ptr,reg,nr) \
switch (nr) { \
case 15: ptr[15] = read_debug(reg, 15); \
+ /* Fall through */ \
case 14: ptr[14] = read_debug(reg, 14); \
+ /* Fall through */ \
case 13: ptr[13] = read_debug(reg, 13); \
+ /* Fall through */ \
case 12: ptr[12] = read_debug(reg, 12); \
+ /* Fall through */ \
case 11: ptr[11] = read_debug(reg, 11); \
+ /* Fall through */ \
case 10: ptr[10] = read_debug(reg, 10); \
+ /* Fall through */ \
case 9: ptr[9] = read_debug(reg, 9); \
+ /* Fall through */ \
case 8: ptr[8] = read_debug(reg, 8); \
+ /* Fall through */ \
case 7: ptr[7] = read_debug(reg, 7); \
+ /* Fall through */ \
case 6: ptr[6] = read_debug(reg, 6); \
+ /* Fall through */ \
case 5: ptr[5] = read_debug(reg, 5); \
+ /* Fall through */ \
case 4: ptr[4] = read_debug(reg, 4); \
+ /* Fall through */ \
case 3: ptr[3] = read_debug(reg, 3); \
+ /* Fall through */ \
case 2: ptr[2] = read_debug(reg, 2); \
+ /* Fall through */ \
case 1: ptr[1] = read_debug(reg, 1); \
+ /* Fall through */ \
default: ptr[0] = read_debug(reg, 0); \
}
#define restore_debug(ptr,reg,nr) \
switch (nr) { \
case 15: write_debug(ptr[15], reg, 15); \
+ /* Fall through */ \
case 14: write_debug(ptr[14], reg, 14); \
+ /* Fall through */ \
case 13: write_debug(ptr[13], reg, 13); \
+ /* Fall through */ \
case 12: write_debug(ptr[12], reg, 12); \
+ /* Fall through */ \
case 11: write_debug(ptr[11], reg, 11); \
+ /* Fall through */ \
case 10: write_debug(ptr[10], reg, 10); \
+ /* Fall through */ \
case 9: write_debug(ptr[9], reg, 9); \
+ /* Fall through */ \
case 8: write_debug(ptr[8], reg, 8); \
+ /* Fall through */ \
case 7: write_debug(ptr[7], reg, 7); \
+ /* Fall through */ \
case 6: write_debug(ptr[6], reg, 6); \
+ /* Fall through */ \
case 5: write_debug(ptr[5], reg, 5); \
+ /* Fall through */ \
case 4: write_debug(ptr[4], reg, 4); \
+ /* Fall through */ \
case 3: write_debug(ptr[3], reg, 3); \
+ /* Fall through */ \
case 2: write_debug(ptr[2], reg, 2); \
+ /* Fall through */ \
case 1: write_debug(ptr[1], reg, 1); \
+ /* Fall through */ \
default: write_debug(ptr[0], reg, 0); \
}
--
2.22.0
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