| Message ID | 20230515054928.2079268-4-sunilvl@ventanamicro.com |
|---|---|
| State | Accepted |
| Commit | fbb995a7b27c72d83963bf43ed76dcaf0449a2a9 |
| Headers | show |
| Series | Add basic ACPI support for RISC-V | expand |
On Mon, May 15, 2023 at 11:19:10AM +0530, Sunil V L wrote: > With CONFIG_ACPI enabled for RISC-V, this driver gets enabled in > allmodconfig build. However, build fails with clang and below > error is seen. > > drivers/crypto/hisilicon/qm.c:627:10: error: invalid output constraint '+Q' in asm > "+Q" (*((char __iomem *)fun_base)) > ^ > This is expected error with clang due to the way it is designed. > > To fix this issue, move arm64 assembly code under #if. > > Link: https://github.com/ClangBuiltLinux/linux/issues/999 > Signed-off-by: Nathan Chancellor <nathan@kernel.org> > [sunilvl@ventanamicro.com: Moved tmp0 and tmp1 into the #if] > Signed-off-by: Sunil V L <sunilvl@ventanamicro.com> > --- > drivers/crypto/hisilicon/qm.c | 5 +++++ > 1 file changed, 5 insertions(+) Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/drivers/crypto/hisilicon/qm.c b/drivers/crypto/hisilicon/qm.c index ad0c042b5e66..edc6fd44e7ca 100644 --- a/drivers/crypto/hisilicon/qm.c +++ b/drivers/crypto/hisilicon/qm.c @@ -610,7 +610,10 @@ EXPORT_SYMBOL_GPL(hisi_qm_wait_mb_ready); static void qm_mb_write(struct hisi_qm *qm, const void *src) { void __iomem *fun_base = qm->io_base + QM_MB_CMD_SEND_BASE; + +#if IS_ENABLED(CONFIG_ARM64) unsigned long tmp0 = 0, tmp1 = 0; +#endif if (!IS_ENABLED(CONFIG_ARM64)) { memcpy_toio(fun_base, src, 16); @@ -618,6 +621,7 @@ static void qm_mb_write(struct hisi_qm *qm, const void *src) return; } +#if IS_ENABLED(CONFIG_ARM64) asm volatile("ldp %0, %1, %3\n" "stp %0, %1, %2\n" "dmb oshst\n" @@ -626,6 +630,7 @@ static void qm_mb_write(struct hisi_qm *qm, const void *src) "+Q" (*((char __iomem *)fun_base)) : "Q" (*((char *)src)) : "memory"); +#endif } static int qm_mb_nolock(struct hisi_qm *qm, struct qm_mailbox *mailbox)
With CONFIG_ACPI enabled for RISC-V, this driver gets enabled in allmodconfig build. However, build fails with clang and below error is seen. drivers/crypto/hisilicon/qm.c:627:10: error: invalid output constraint '+Q' in asm "+Q" (*((char __iomem *)fun_base)) ^ This is expected error with clang due to the way it is designed. To fix this issue, move arm64 assembly code under #if. Link: https://github.com/ClangBuiltLinux/linux/issues/999 Signed-off-by: Nathan Chancellor <nathan@kernel.org> [sunilvl@ventanamicro.com: Moved tmp0 and tmp1 into the #if] Signed-off-by: Sunil V L <sunilvl@ventanamicro.com> --- drivers/crypto/hisilicon/qm.c | 5 +++++ 1 file changed, 5 insertions(+)