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| author | Arnd Bergmann <arnd@arndb.de> | 2018-09-27 12:09:26 +0200 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2018-09-28 10:09:27 +0200 |
| commit | 8537bf10976c56c6e0cc8b05a835e58cbbb1d287 (patch) | |
| tree | 35291df7131e0d25edcbd2b9651e43417129777c /drivers/edac/altera_edac.c | |
| parent | c4a3e94641449362ee970f521a2cdb0e8cd08690 (diff) | |
| download | linux-8537bf10976c56c6e0cc8b05a835e58cbbb1d287.tar.bz2 | |
EDAC, altera: Work around int-to-pointer-cast warnings
The altera edac driver passes a token from a DT resource as
resource_size_t into an SMC call, but casts it to an __iomem pointer and
then a plain void pointer inbetween, mixing three or four incompatible
types in the process. The compiler complains about one of the
conversions:
drivers/edac/altera_edac.c: In function 'altr_init_a10_ecc_block':
drivers/edac/altera_edac.c:1053:10: error: cast to pointer from integer of \
different size [-Werror=int-to-pointer-cast]
base = (void __iomem *)res.start;
^
drivers/edac/altera_edac.c: In function 'altr_edac_a10_probe':
drivers/edac/altera_edac.c:2062:10: error: cast to pointer from integer of \
different size [-Werror=int-to-pointer-cast]
base = (void __iomem *)res.start;
Using a static checker probably also notices the __iomem cast. Solving
this properly isn't trivial, but simply casting to a 'uintptr_t' instead
of 'void __iomem *' makes it less wrong and should avoid the warnings.
Fixes: d5fc9125566c ("EDAC, altera: Combine Stratix10 and Arria10 probe functions")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Thor Thayer <thor.thayer@linux.intel.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: David Frey <dpfrey@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Cc: linux-edac@vger.kernel.org
Link: https://lkml.kernel.org/r/20180927100949.973078-1-arnd@arndb.de
Diffstat (limited to 'drivers/edac/altera_edac.c')
| -rw-r--r-- | drivers/edac/altera_edac.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/edac/altera_edac.c b/drivers/edac/altera_edac.c index 523ae84a4dd8..4324a00f3c27 100644 --- a/drivers/edac/altera_edac.c +++ b/drivers/edac/altera_edac.c @@ -1035,7 +1035,7 @@ altr_init_a10_ecc_block(struct device_node *np, u32 irq_mask, } else { struct device_node *sysmgr_np; struct resource res; - void __iomem *base; + uintptr_t base; sysmgr_np = of_parse_phandle(np_eccmgr, "altr,sysmgr-syscon", 0); @@ -1049,9 +1049,9 @@ altr_init_a10_ecc_block(struct device_node *np, u32 irq_mask, return -ENOMEM; /* Need physical address for SMCC call */ - base = (void __iomem *)res.start; + base = res.start; - ecc_mgr_map = regmap_init(NULL, NULL, base, + ecc_mgr_map = regmap_init(NULL, NULL, (void *)base, &s10_sdram_regmap_cfg); } of_node_put(np_eccmgr); @@ -2044,7 +2044,7 @@ static int altr_edac_a10_probe(struct platform_device *pdev) } else { struct device_node *sysmgr_np; struct resource res; - void __iomem *base; + uintptr_t base; sysmgr_np = of_parse_phandle(pdev->dev.of_node, "altr,sysmgr-syscon", 0); @@ -2058,9 +2058,10 @@ static int altr_edac_a10_probe(struct platform_device *pdev) return -ENOMEM; /* Need physical address for SMCC call */ - base = (void __iomem *)res.start; + base = res.start; - edac->ecc_mgr_map = devm_regmap_init(&pdev->dev, NULL, base, + edac->ecc_mgr_map = devm_regmap_init(&pdev->dev, NULL, + (void *)base, &s10_sdram_regmap_cfg); } |