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s390/pci: use basic blocks for pci inline assemblies
Use only simple inline assemblies which consist of a single basic block if the register asm construct is being used. Otherwise gcc would generate broken code if the compiler option --sanitize-coverage=trace-pc would be used. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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1 changed files with 11 additions and 1 deletions
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@ -99,7 +99,7 @@ void zpci_set_irq_ctrl(u16 ctl, char *unused, u8 isc)
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}
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/* PCI Load */
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static inline int __pcilg(u64 *data, u64 req, u64 offset, u8 *status)
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static inline int ____pcilg(u64 *data, u64 req, u64 offset, u8 *status)
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{
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register u64 __req asm("2") = req;
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register u64 __offset asm("3") = offset;
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@ -116,6 +116,16 @@ static inline int __pcilg(u64 *data, u64 req, u64 offset, u8 *status)
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: "d" (__offset)
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: "cc");
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*status = __req >> 24 & 0xff;
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*data = __data;
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return cc;
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}
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static inline int __pcilg(u64 *data, u64 req, u64 offset, u8 *status)
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{
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u64 __data;
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int cc;
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cc = ____pcilg(&__data, req, offset, status);
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if (!cc)
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*data = __data;
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