crypto: caam - avoid option aliasing with the CONFIG_CAAM_QI build option

In the Makefile, the new build option CONFIG_CAAM_QI is defined conditioned
on the existence of the CONFIG_CRYPTO_DEV_FSL_CAAM_CRYPTO_API_QI, which is
properly defined in the Kconfig file. So, CONFIG_CAAM_QI is just a local
alias for CONFIG_CRYPTO_DEV_FSL_CAAM_CRYPTO_API_QI.

There is little benefit in the source code of having this slightly shorter
alias for this configuration, but it complicates further maintenance, as
searching for the impact of CONFIG_CRYPTO_DEV_FSL_CAAM_CRYPTO_API_QI
requires to grep once, and then identify the option introduced and continue
searching for that. Further, tools, such as cross referencers, and scripts
to check Kconfig definitions and their use simply do not handle this
situation. Given that this is the only incidence of such a config alias in
the whole kernel tree, just prefer to avoid this pattern of aliasing here.

Use CONFIG_CRYPTO_DEV_FSL_CAAM_CRYPTO_API_QI throughout the Freescale
CAAM-Multicore platform driver backend source code.

No functional change.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@redhat.com>
Reviewed-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Author: bulwahn

drivers/crypto/caam/Makefile

@@ -25,10 +25,6 @@ caam_jr-$(CONFIG_CRYPTO_DEV_FSL_CAAM_PKC_API) += caampkc.o pkc_desc.o
 caam_jr-$(CONFIG_CRYPTO_DEV_FSL_CAAM_BLOB_GEN) += blob_gen.o
 
 caam-$(CONFIG_CRYPTO_DEV_FSL_CAAM_CRYPTO_API_QI) += qi.o
-ifneq ($(CONFIG_CRYPTO_DEV_FSL_CAAM_CRYPTO_API_QI),)
-	ccflags-y += -DCONFIG_CAAM_QI
-endif
-
 caam-$(CONFIG_DEBUG_FS) += debugfs.o
 
 obj-$(CONFIG_CRYPTO_DEV_FSL_DPAA2_CAAM) += dpaa2_caam.o

drivers/crypto/caam/ctrl.c

@@ -24,7 +24,7 @@
 bool caam_dpaa2;
 EXPORT_SYMBOL(caam_dpaa2);
 
-#ifdef CONFIG_CAAM_QI
+#ifdef CONFIG_CRYPTO_DEV_FSL_CAAM_CRYPTO_API_QI
 #include "qi.h"
 #endif
 
@@ -968,7 +968,7 @@ static int caam_probe(struct platform_device *pdev)
 	caam_dpaa2 = !!(comp_params & CTPR_MS_DPAA2);
 	ctrlpriv->qi_present = !!(comp_params & CTPR_MS_QI_MASK);
 
-#ifdef CONFIG_CAAM_QI
+#ifdef CONFIG_CRYPTO_DEV_FSL_CAAM_CRYPTO_API_QI
 	/* If (DPAA 1.x) QI present, check whether dependencies are available */
 	if (ctrlpriv->qi_present && !caam_dpaa2) {
 		ret = qman_is_probed();
@@ -1099,7 +1099,7 @@ static int caam_probe(struct platform_device *pdev)
 		wr_reg32(&ctrlpriv->qi->qi_control_lo, QICTL_DQEN);
 
 		/* If QMAN driver is present, init CAAM-QI backend */
-#ifdef CONFIG_CAAM_QI
+#ifdef CONFIG_CRYPTO_DEV_FSL_CAAM_CRYPTO_API_QI
 		ret = caam_qi_init(pdev);
 		if (ret)
 			dev_err(dev, "caam qi i/f init failed: %d\n", ret);

drivers/crypto/caam/debugfs.c

@@ -22,7 +22,7 @@ static int caam_debugfs_u32_get(void *data, u64 *val)
 DEFINE_DEBUGFS_ATTRIBUTE(caam_fops_u32_ro, caam_debugfs_u32_get, NULL, "%llu\n");
 DEFINE_DEBUGFS_ATTRIBUTE(caam_fops_u64_ro, caam_debugfs_u64_get, NULL, "%llu\n");
 
-#ifdef CONFIG_CAAM_QI
+#ifdef CONFIG_CRYPTO_DEV_FSL_CAAM_CRYPTO_API_QI
 /*
  * This is a counter for the number of times the congestion group (where all
  * the request and response queueus are) reached congestion. Incremented

drivers/crypto/caam/debugfs.h

@@ -18,7 +18,7 @@ static inline void caam_debugfs_init(struct caam_drv_private *ctrlpriv,
 {}
 #endif
 
-#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_CAAM_QI)
+#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_CRYPTO_DEV_FSL_CAAM_CRYPTO_API_QI)
 void caam_debugfs_qi_congested(void);
 void caam_debugfs_qi_init(struct caam_drv_private *ctrlpriv);
 #else

drivers/crypto/caam/intern.h

@@ -227,7 +227,7 @@ static inline int caam_prng_register(struct device *dev)
 static inline void caam_prng_unregister(void *data) {}
 #endif /* CONFIG_CRYPTO_DEV_FSL_CAAM_PRNG_API */
 
-#ifdef CONFIG_CAAM_QI
+#ifdef CONFIG_CRYPTO_DEV_FSL_CAAM_CRYPTO_API_QI
 
 int caam_qi_algapi_init(struct device *dev);
 void caam_qi_algapi_exit(void);
@@ -243,7 +243,7 @@ static inline void caam_qi_algapi_exit(void)
 {
 }
 
-#endif /* CONFIG_CAAM_QI */
+#endif /* CONFIG_CRYPTO_DEV_FSL_CAAM_CRYPTO_API_QI */
 
 static inline u64 caam_get_dma_mask(struct device *dev)
 {