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authorBorislav Petkov <bp@suse.de>2018-05-12 14:32:43 +0200
committerBorislav Petkov <bp@suse.de>2018-05-12 14:35:30 +0200
commita0671c39ddf4ebe464dc49da7e48860ff4135920 (patch)
treef82e4b8e7d5c3e14bd1ad4af9d73a1e8286328ce /drivers/edac
parentad0d73b324dbc9e5b987fbda08ceb523fbeb0a9f (diff)
downloadlinux-a0671c39ddf4ebe464dc49da7e48860ff4135920.tar.bz2
EDAC, ghes: Use BIT() macro
... for improved readability. Also, add a local mask variable for the same reason. No functional changes. Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Toshi Kani <toshi.kani@hpe.com> Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/edac')
-rw-r--r--drivers/edac/ghes_edac.c27
1 files changed, 13 insertions, 14 deletions
diff --git a/drivers/edac/ghes_edac.c b/drivers/edac/ghes_edac.c
index cb8f2704ffb0..863fbf3db29f 100644
--- a/drivers/edac/ghes_edac.c
+++ b/drivers/edac/ghes_edac.c
@@ -91,6 +91,7 @@ static void ghes_edac_dmidecode(const struct dmi_header *dh, void *arg)
struct dimm_info *dimm = EDAC_DIMM_PTR(mci->layers, mci->dimms,
mci->n_layers,
dimm_fill->count, 0, 0);
+ u16 rdr_mask = BIT(7) | BIT(13);
if (entry->size == 0xffff) {
pr_info("Can't get DIMM%i size\n",
@@ -99,22 +100,21 @@ static void ghes_edac_dmidecode(const struct dmi_header *dh, void *arg)
} else if (entry->size == 0x7fff) {
dimm->nr_pages = MiB_TO_PAGES(entry->extended_size);
} else {
- if (entry->size & 1 << 15)
- dimm->nr_pages = MiB_TO_PAGES((entry->size &
- 0x7fff) << 10);
+ if (entry->size & BIT(15))
+ dimm->nr_pages = MiB_TO_PAGES((entry->size & 0x7fff) << 10);
else
dimm->nr_pages = MiB_TO_PAGES(entry->size);
}
switch (entry->memory_type) {
case 0x12:
- if (entry->type_detail & 1 << 13)
+ if (entry->type_detail & BIT(13))
dimm->mtype = MEM_RDDR;
else
dimm->mtype = MEM_DDR;
break;
case 0x13:
- if (entry->type_detail & 1 << 13)
+ if (entry->type_detail & BIT(13))
dimm->mtype = MEM_RDDR2;
else
dimm->mtype = MEM_DDR2;
@@ -123,30 +123,29 @@ static void ghes_edac_dmidecode(const struct dmi_header *dh, void *arg)
dimm->mtype = MEM_FB_DDR2;
break;
case 0x18:
- if (entry->type_detail & 1 << 12)
+ if (entry->type_detail & BIT(12))
dimm->mtype = MEM_NVDIMM;
- else if (entry->type_detail & 1 << 13)
+ else if (entry->type_detail & BIT(13))
dimm->mtype = MEM_RDDR3;
else
dimm->mtype = MEM_DDR3;
break;
case 0x1a:
- if (entry->type_detail & 1 << 12)
+ if (entry->type_detail & BIT(12))
dimm->mtype = MEM_NVDIMM;
- else if (entry->type_detail & 1 << 13)
+ else if (entry->type_detail & BIT(13))
dimm->mtype = MEM_RDDR4;
else
dimm->mtype = MEM_DDR4;
break;
default:
- if (entry->type_detail & 1 << 6)
+ if (entry->type_detail & BIT(6))
dimm->mtype = MEM_RMBS;
- else if ((entry->type_detail & ((1 << 7) | (1 << 13)))
- == ((1 << 7) | (1 << 13)))
+ else if ((entry->type_detail & rdr_mask) == rdr_mask)
dimm->mtype = MEM_RDR;
- else if (entry->type_detail & 1 << 7)
+ else if (entry->type_detail & BIT(7))
dimm->mtype = MEM_SDR;
- else if (entry->type_detail & 1 << 9)
+ else if (entry->type_detail & BIT(9))
dimm->mtype = MEM_EDO;
else
dimm->mtype = MEM_UNKNOWN;